61 changed files with 87 additions and 1580 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,82 +1,3 @@
-## OpenEthereum v3.3.3
-
-Enhancements:
-* Implement eip-3607 (#593)
-
-Bug fixes:
-* Add type field for legacy transactions in RPC calls (#580)
-* Makes eth_mining to return False if not is not allowed to seal (#581)
-* Made nodes data concatenate as RLP sequences instead of bytes (#598)
-
-## OpenEthereum v3.3.2
-
-Enhancements:
-* London hardfork block: Sokol (24114400)
-
-Bug fixes:
-* Fix for maxPriorityFeePerGas overflow
-
-## OpenEthereum v3.3.1
-
-Enhancements:
-* Add eth_maxPriorityFeePerGas implementation (#570)
-* Add a bootnode for Kovan
-
-Bug fixes:
-* Fix for modexp overflow in debug mode (#578)
-
-## OpenEthereum v3.3.0
-
-Enhancements:
-* Add `validateServiceTransactionsTransition` spec option to be able to enable additional checking of zero gas price transactions by block verifier
-
-## OpenEthereum v3.3.0-rc.15
-
-* Revert eip1559BaseFeeMinValue activation on xDai at London hardfork block
-
-## OpenEthereum v3.3.0-rc.14
-
-Enhancements:
-* Add eip1559BaseFeeMinValue and eip1559BaseFeeMinValueTransition spec options
-* Activate eip1559BaseFeeMinValue on xDai at London hardfork block (19040000), set it to 20 GWei
-* Activate eip1559BaseFeeMinValue on POA Core at block 24199500 (November 8, 2021), set it to 10 GWei
-* Delay difficulty bomb to June 2022 for Ethereum Mainnet (EIP-4345)
-
-## OpenEthereum v3.3.0-rc.13
-
-Enhancements:
-* London hardfork block: POA Core (24090200)
-
-## OpenEthereum v3.3.0-rc.12
-
-Enhancements:
-* London hardfork block: xDai (19040000)
-
-## OpenEthereum v3.3.0-rc.11
-
-Bug fixes:
-* Ignore GetNodeData requests only for non-AuRa chains
-
-## OpenEthereum v3.3.0-rc.10
-
-Enhancements:
-* Add eip1559FeeCollector and eip1559FeeCollectorTransition spec options
-
-## OpenEthereum v3.3.0-rc.9
-
-Bug fixes:
-* Add service transactions support for EIP-1559
-* Fix MinGasPrice config option for POSDAO and EIP-1559
-
-Enhancements:
-* min_gas_price becomes min_effective_priority_fee
-* added version 4 for TxPermission contract
-
-## OpenEthereum v3.3.0-rc.8
-
-Bug fixes:
-* Ignore GetNodeData requests (#519)
-
 ## OpenEthereum v3.3.0-rc.7

 Bug fixes:
--- a/Cargo.lock
+++ b/Cargo.lock
@ -1,7 +1,5 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
-
 [[package]]
 name = "addr2line"
 version = "0.14.1"
@ -2932,7 +2930,7 @@ checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"

 [[package]]
 name = "openethereum"
-version = "3.3.3"
+version = "3.3.0-rc.7"
 dependencies = [
 "ansi_term 0.10.2",
 "atty",
@ -3282,7 +3280,7 @@ dependencies = [

 [[package]]
 name = "parity-version"
-version = "3.3.3"
+version = "3.3.0-rc.7"
 dependencies = [
 "parity-bytes",
 "rlp",
--- a/Cargo.toml
+++ b/Cargo.toml
@ -2,7 +2,7 @@
 description = "OpenEthereum"
 name = "openethereum"
 # NOTE Make sure to update util/version/Cargo.toml as well
-version = "3.3.3"
+version = "3.3.0-rc.7"
 license = "GPL-3.0"
 authors = [
 	"OpenEthereum developers",
--- a/bin/oe/cli/mod.rs
+++ b/bin/oe/cli/mod.rs
@ -680,7 +680,7 @@ usage! {

            ARG arg_min_gas_price: (Option<u64>) = None, or |c: &Config| c.mining.as_ref()?.min_gas_price.clone(),
            "--min-gas-price=[STRING]",
-            "Minimum amount of Wei per GAS to be paid for a transaction on top of base fee, to be accepted for mining. Overrides --usd-per-tx.",
+            "Minimum amount of Wei per GAS to be paid for a transaction to be accepted for mining. Overrides --usd-per-tx.",

            ARG arg_gas_price_percentile: (usize) = 50usize, or |c: &Config| c.mining.as_ref()?.gas_price_percentile,
            "--gas-price-percentile=[PCT]",
--- a/bin/oe/configuration.rs
+++ b/bin/oe/configuration.rs
@ -640,7 +640,7 @@ impl Configuration {

    fn pool_verification_options(&self) -> Result<pool::verifier::Options, String> {
        Ok(pool::verifier::Options {
-            // NOTE min_gas_price,block_gas_limit block_base_fee, and allow_non_eoa_sender will be overwritten right after start.
+            // NOTE min_gas_price,block_gas_limit and block_base_fee will be overwritten right after start.
            minimal_gas_price: U256::from(20_000_000) * 1_000u32,
            block_gas_limit: U256::max_value(),
            block_base_fee: None,
@ -649,7 +649,6 @@ impl Configuration {
                None => U256::max_value(),
            },
            no_early_reject: self.args.flag_tx_queue_no_early_reject,
-            allow_non_eoa_sender: false,
        })
    }

--- a/bin/oe/run.rs
+++ b/bin/oe/run.rs
@ -370,14 +370,7 @@ pub fn execute(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<RunningClient
    let base_fee = client
        .engine()
        .calculate_base_fee(&client.best_block_header());
-    let allow_non_eoa_sender = client
-        .engine()
-        .allow_non_eoa_sender(client.best_block_header().number() + 1);
-    miner.update_transaction_queue_limits(
-        *client.best_block_header().gas_limit(),
-        base_fee,
-        allow_non_eoa_sender,
-    );
+    miner.update_transaction_queue_limits(*client.best_block_header().gas_limit(), base_fee);

    let connection_filter = connection_filter_address.map(|a| {
        Arc::new(NodeFilter::new(
--- a/crates/concensus/miner/src/pool/client.rs
+++ b/crates/concensus/miner/src/pool/client.rs
@ -32,8 +32,6 @@ pub struct AccountDetails {
    pub nonce: U256,
    /// Current account balance
    pub balance: U256,
-    /// Code hash associated with an account if any
-    pub code_hash: Option<H256>,
    /// Is this account a local account?
    pub is_local: bool,
 }
--- a/crates/concensus/miner/src/pool/mod.rs
+++ b/crates/concensus/miner/src/pool/mod.rs
@ -188,10 +188,6 @@ impl txpool::VerifiedTransaction for VerifiedTransaction {
    fn sender(&self) -> &Address {
        &self.sender
    }
-
-    fn has_zero_gas_price(&self) -> bool {
-        self.transaction.has_zero_gas_price()
-    }
 }

 impl ScoredTransaction for VerifiedTransaction {
--- a/crates/concensus/miner/src/pool/queue.rs
+++ b/crates/concensus/miner/src/pool/queue.rs
@ -659,27 +659,10 @@ impl TransactionQueue {
            Some(tx) => tx
                .signed()
                .effective_gas_price(self.options.read().block_base_fee),
-            None => {
-                self.options.read().minimal_gas_price
-                    + self.options.read().block_base_fee.unwrap_or_default()
-            }
+            None => self.options.read().minimal_gas_price,
        }
    }

-    /// Returns effective priority fee gas price of currently the worst transaction in the pool.
-    /// If the worst transaction has zero gas price, the minimal gas price is returned.
-    pub fn current_worst_effective_priority_fee(&self) -> U256 {
-        self.pool
-            .read()
-            .worst_transaction()
-            .filter(|tx| !tx.signed().has_zero_gas_price())
-            .map(|tx| {
-                tx.signed()
-                    .effective_priority_fee(self.options.read().block_base_fee)
-            })
-            .unwrap_or(self.options.read().minimal_gas_price)
-    }
-
    /// Returns a status of the queue.
    pub fn status(&self) -> Status {
        let pool = self.pool.read();
--- a/crates/concensus/miner/src/pool/tests/client.rs
+++ b/crates/concensus/miner/src/pool/tests/client.rs
@ -43,7 +43,6 @@ impl Default for TestClient {
            account_details: AccountDetails {
                nonce: 123.into(),
                balance: 63_100.into(),
-                code_hash: None,
                is_local: false,
            },
            gas_required: 21_000.into(),
@ -69,11 +68,6 @@ impl TestClient {
        self
    }

-    pub fn with_code_hash<T: Into<H256>>(mut self, code_hash: T) -> Self {
-        self.account_details.code_hash = Some(code_hash.into());
-        self
-    }
-
    pub fn with_gas_required<T: Into<U256>>(mut self, gas_required: T) -> Self {
        self.gas_required = gas_required.into();
        self
--- a/crates/concensus/miner/src/pool/tests/mod.rs
+++ b/crates/concensus/miner/src/pool/tests/mod.rs
@ -15,7 +15,6 @@
 // along with OpenEthereum.  If not, see <http://www.gnu.org/licenses/>.

 use ethereum_types::U256;
-use hash::KECCAK_EMPTY;
 use txpool;
 use types::transaction::{self, PendingTransaction};

@ -48,7 +47,6 @@ fn new_queue() -> TransactionQueue {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    )
@ -68,7 +66,6 @@ fn should_return_correct_nonces_when_dropped_because_of_limit() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
@ -130,7 +127,6 @@ fn should_never_drop_local_transactions_from_different_senders() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
@ -276,71 +272,6 @@ fn should_import_transaction_below_min_gas_price_threshold_if_local() {
    assert_eq!(txq.status().status.transaction_count, 1);
 }

-#[test]
-fn should_reject_transaction_from_non_eoa_if_non_eoa_sender_is_not_allowed() {
-    // given
-    let txq = new_queue();
-    let tx = Tx::default();
-    let code_hash = [
-        0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f,
-        0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a,
-        0x0f, 0x0e,
-    ];
-
-    // when
-    let res = txq.import(
-        TestClient::new().with_code_hash(code_hash),
-        vec![tx.signed().unverified()],
-    );
-
-    // then
-    assert_eq!(res, vec![Err(transaction::Error::SenderIsNotEOA)]);
-    assert_eq!(txq.status().status.transaction_count, 0);
-}
-
-#[test]
-fn should_import_transaction_from_non_eoa_if_non_eoa_sender_is_allowed() {
-    // given
-    let txq = new_queue();
-    let tx = Tx::default();
-    let code_hash = [
-        0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f,
-        0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a, 0x0f, 0x0e, 0x0c, 0x0a,
-        0x0f, 0x0e,
-    ];
-    txq.set_verifier_options(verifier::Options {
-        allow_non_eoa_sender: true,
-        ..Default::default()
-    });
-
-    // when
-    let res = txq.import(
-        TestClient::new().with_code_hash(code_hash),
-        vec![tx.signed().unverified()],
-    );
-
-    // then
-    assert_eq!(res, vec![Ok(())]);
-    assert_eq!(txq.status().status.transaction_count, 1);
-}
-
-#[test]
-fn should_import_transaction_if_account_code_hash_is_keccak_empty() {
-    // given
-    let txq = new_queue();
-    let tx = Tx::default();
-
-    // when
-    let res = txq.import(
-        TestClient::new().with_code_hash(KECCAK_EMPTY),
-        vec![tx.signed().unverified()],
-    );
-
-    // then
-    assert_eq!(res, vec![Ok(())]);
-    assert_eq!(txq.status().status.transaction_count, 1);
-}
-
 #[test]
 fn should_import_txs_from_same_sender() {
    // given
@ -614,7 +545,6 @@ fn should_prefer_current_transactions_when_hitting_the_limit() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
@ -1113,7 +1043,6 @@ fn should_include_local_transaction_to_a_full_pool() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
@ -1147,7 +1076,6 @@ fn should_avoid_verifying_transaction_already_in_pool() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
@ -1184,7 +1112,6 @@ fn should_avoid_reverifying_recently_rejected_transactions() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
@ -1234,7 +1161,6 @@ fn should_reject_early_in_case_gas_price_is_less_than_min_effective() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: false,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
@ -1278,7 +1204,6 @@ fn should_not_reject_early_in_case_gas_price_is_less_than_min_effective() {
            tx_gas_limit: 1_000_000.into(),
            no_early_reject: true,
            block_base_fee: None,
-            allow_non_eoa_sender: false,
        },
        PrioritizationStrategy::GasPriceOnly,
    );
--- a/crates/concensus/miner/src/pool/verifier.rs
+++ b/crates/concensus/miner/src/pool/verifier.rs
@ -31,7 +31,6 @@ use std::{
 };

 use ethereum_types::{H256, U256};
-use hash::KECCAK_EMPTY;
 use txpool;
 use types::transaction;

@ -43,7 +42,7 @@ use super::{
 /// Verification options.
 #[derive(Debug, Clone, PartialEq)]
 pub struct Options {
-    /// Minimal allowed gas price (actually minimal block producer reward = effective_priority_fee).
+    /// Minimal allowed gas price.
    pub minimal_gas_price: U256,
    /// Current block gas limit.
    pub block_gas_limit: U256,
@ -53,8 +52,6 @@ pub struct Options {
    pub tx_gas_limit: U256,
    /// Skip checks for early rejection, to make sure that local transactions are always imported.
    pub no_early_reject: bool,
-    /// Accept transactions from non EOAs (see EIP-3607)
-    pub allow_non_eoa_sender: bool,
 }

 #[cfg(test)]
@ -66,7 +63,6 @@ impl Default for Options {
            block_base_fee: None,
            tx_gas_limit: U256::max_value(),
            no_early_reject: false,
-            allow_non_eoa_sender: false,
        }
    }
 }
@ -126,24 +122,6 @@ impl Transaction {
        }
    }

-    /// Return effective fee - part of the transaction fee that goes to the miner
-    pub fn effective_priority_fee(&self, block_base_fee: Option<U256>) -> U256 {
-        match *self {
-            Transaction::Unverified(ref tx) => tx.effective_priority_fee(block_base_fee),
-            Transaction::Retracted(ref tx) => tx.effective_priority_fee(block_base_fee),
-            Transaction::Local(ref tx) => tx.effective_priority_fee(block_base_fee),
-        }
-    }
-
-    /// Check if transaction has zero gas price
-    pub fn has_zero_gas_price(&self) -> bool {
-        match *self {
-            Transaction::Unverified(ref tx) => tx.has_zero_gas_price(),
-            Transaction::Retracted(ref tx) => tx.has_zero_gas_price(),
-            Transaction::Local(ref tx) => tx.has_zero_gas_price(),
-        }
-    }
-
    fn transaction(&self) -> &transaction::TypedTransaction {
        match *self {
            Transaction::Unverified(ref tx) => &*tx,
@ -247,26 +225,24 @@ impl<C: Client> txpool::Verifier<Transaction>
        }

        let is_own = tx.is_local();
-        let has_zero_gas_price = tx.has_zero_gas_price();
+        let gas_price = tx.effective_gas_price(self.options.block_base_fee);
        // Quick exit for non-service and non-local transactions
        //
        // We're checking if the transaction is below configured minimal gas price
        // or the effective minimal gas price in case the pool is full.

-        if !has_zero_gas_price && !is_own {
-            let effective_priority_fee = tx.effective_priority_fee(self.options.block_base_fee);
-
-            if effective_priority_fee < self.options.minimal_gas_price {
+        if !gas_price.is_zero() && !is_own {
+            if gas_price < self.options.minimal_gas_price {
                trace!(
                    target: "txqueue",
                    "[{:?}] Rejected tx below minimal gas price threshold: {} < {}",
                    hash,
-                    effective_priority_fee,
+                    gas_price,
                    self.options.minimal_gas_price,
                );
                bail!(transaction::Error::InsufficientGasPrice {
                    minimal: self.options.minimal_gas_price,
-                    got: effective_priority_fee,
+                    got: gas_price,
                });
            }

@ -276,7 +252,7 @@ impl<C: Client> txpool::Verifier<Transaction>
                        target: "txqueue",
                        "[{:?}] Rejected tx early, cause it doesn't have any chance to get to the pool: (gas price: {} < {})",
                        hash,
-                        tx.effective_gas_price(self.options.block_base_fee),
+                        gas_price,
                        vtx.transaction.effective_gas_price(self.options.block_base_fee),
                    );
                    return Err(transaction::Error::TooCheapToReplace {
@ -284,7 +260,7 @@ impl<C: Client> txpool::Verifier<Transaction>
                            vtx.transaction
                                .effective_gas_price(self.options.block_base_fee),
                        ),
-                        new: Some(tx.effective_gas_price(self.options.block_base_fee)),
+                        new: Some(gas_price),
                    });
                }
            }
@ -321,24 +297,9 @@ impl<C: Client> txpool::Verifier<Transaction>
        let sender = transaction.sender();
        let account_details = self.client.account_details(&sender);

-        if !self.options.allow_non_eoa_sender {
-            if let Some(code_hash) = account_details.code_hash {
-                if code_hash != KECCAK_EMPTY {
-                    debug!(
-                        target: "txqueue",
-                        "[{:?}] Rejected tx, sender is not an EOA: {}",
-                        hash,
-                        code_hash
-                    );
-                    bail!(transaction::Error::SenderIsNotEOA);
-                }
-            }
-        }
+        let gas_price = transaction.tx().gas_price;

-        let effective_priority_fee =
-            transaction.effective_priority_fee(self.options.block_base_fee);
-
-        if effective_priority_fee < self.options.minimal_gas_price {
+        if gas_price < self.options.minimal_gas_price {
            let transaction_type = self.client.transaction_type(&transaction);
            if let TransactionType::Service = transaction_type {
                debug!(target: "txqueue", "Service tx {:?} below minimal gas price accepted", hash);
@ -349,18 +310,16 @@ impl<C: Client> txpool::Verifier<Transaction>
                    target: "txqueue",
                    "[{:?}] Rejected tx below minimal gas price threshold: {} < {}",
                    hash,
-                    effective_priority_fee,
+                    gas_price,
                    self.options.minimal_gas_price,
                );
                bail!(transaction::Error::InsufficientGasPrice {
                    minimal: self.options.minimal_gas_price,
-                    got: effective_priority_fee,
+                    got: gas_price,
                });
            }
        }

-        let gas_price = transaction.tx().gas_price;
-
        if gas_price < transaction.max_priority_fee_per_gas() {
            bail!(transaction::Error::InsufficientGasPrice {
                minimal: transaction.max_priority_fee_per_gas(),
--- a/crates/concensus/miner/src/service_transaction_checker.rs
+++ b/crates/concensus/miner/src/service_transaction_checker.rs
@ -45,7 +45,7 @@ impl ServiceTransactionChecker {
    ) -> Result<bool, String> {
        let sender = tx.sender();
        // Skip checking the contract if the transaction does not have zero gas price
-        if !tx.has_zero_gas_price() {
+        if !tx.tx().gas_price.is_zero() {
            return Ok(false);
        }

@ -72,7 +72,7 @@ impl ServiceTransactionChecker {
                SERVICE_TRANSACTION_CONTRACT_REGISTRY_NAME.to_owned(),
                BlockId::Latest,
            )
-            .ok_or_else(|| "Certifier contract is not configured")?;
+            .ok_or_else(|| "contract is not configured")?;
        self.call_contract(client, contract_address, sender)
            .and_then(|allowed| {
                if let Some(mut cache) = self.certified_addresses_cache.try_write() {
--- a/crates/ethcore/res/chainspec/foundation.json
+++ b/crates/ethcore/res/chainspec/foundation.json
@ -138,8 +138,7 @@
 					"0x42ae50": "0x2dc6c0",
 					"0x6f1580": "0x1e8480",
 					"0x8c6180": "0x3d0900",
-					"0xc5d488": "0xaae60",
-					"0xd228c8": "0xf4240"
+					"0xc5d488": "0xaae60"
 				}
 			}
 		}
--- a/crates/ethcore/res/chainspec/kovan.json
+++ b/crates/ethcore/res/chainspec/kovan.json
@ -265,7 +265,6 @@
 	},
 	"nodes": [
 		"enode://30499bde23362f7d310a34518a2a6ff765921870bf0c3e63d21153cfa7ba9cf39cc7c8e54e9dad2f2b3c07288b3e91b220656833cc2d843a54875c229f3f959a@8.9.8.175:30303",
-		"enode://30499bde23362f7d310a34518a2a6ff765921870bf0c3e63d21153cfa7ba9cf39cc7c8e54e9dad2f2b3c07288b3e91b220656833cc2d843a54875c229f3f959a@45.33.77.29:30303",
 		"enode://16898006ba2cd4fa8bf9a3dfe32684c178fa861df144bfc21fe800dc4838a03e342056951fa9fd533dcb0be1219e306106442ff2cf1f7e9f8faa5f2fc1a3aa45@116.203.116.241:30303",
 		"enode://49a0e1aa38caa12cbf31222cb4e31cef1e8794cb4dd38012f84498ac867b19584e29bbf6d53201d7dfd3b5eb0998a4d908d096ed4ddb5f9102c623852cd331ec@54.87.247.5:30303"
 	]
--- a/crates/ethcore/res/chainspec/poacore.json
+++ b/crates/ethcore/res/chainspec/poacore.json
@ -47,18 +47,7 @@
 		"eip1884Transition": 12598600,
 		"eip2028Transition": 12598600,
 		"eip2929Transition": 21364900,
-		"eip2930Transition": 21364900,
-		"eip3198Transition": 24090200,
-		"eip3529Transition": 24090200,
-		"eip3541Transition": 24090200,
-		"eip1559Transition": 24090200,
-		"eip1559BaseFeeMaxChangeDenominator": "0x8",
-		"eip1559ElasticityMultiplier": "0x2",
-		"eip1559BaseFeeInitialValue": "0x3b9aca00",
-		"eip1559BaseFeeMinValue": "0x2540be400",
-		"eip1559BaseFeeMinValueTransition": 24199500,
-		"eip1559FeeCollector": "0x517F3AcfF3aFC2fb45e574718bca6F919b798e10",
-		"eip1559FeeCollectorTransition": 24090200
+		"eip2930Transition": 21364900
 	},
 	"genesis": {
 		"seal": {
--- a/crates/ethcore/res/chainspec/poasokol.json
+++ b/crates/ethcore/res/chainspec/poasokol.json
@ -52,16 +52,7 @@
 		"eip1884Transition": 12095200,
 		"eip2028Transition": 12095200,
 		"eip2929Transition": 21050600,
-		"eip2930Transition": 21050600,
-		"eip3198Transition": 24114400,
-		"eip3529Transition": 24114400,
-		"eip3541Transition": 24114400,
-		"eip1559Transition": 24114400,
-		"eip1559BaseFeeMaxChangeDenominator": "0x8",
-		"eip1559ElasticityMultiplier": "0x2",
-		"eip1559BaseFeeInitialValue": "0x3b9aca00",
-		"eip1559FeeCollector": "0xE8DDc5c7A2d2F0D7a9798459c0104fDf5E987ACA",
-		"eip1559FeeCollectorTransition": 24114400
+		"eip2930Transition": 21050600
 	},
 	"genesis": {
 		"seal": {
--- a/crates/ethcore/res/chainspec/test/contract_ver_4.sol
+++ b/crates/ethcore/res/chainspec/test/contract_ver_4.sol
@ -1,65 +0,0 @@
-pragma solidity ^0.4.20;
-
-// Adapted from https://gist.github.com/VladLupashevskyi/84f18eabb1e4afadf572cf92af3e7e7f
-// and: https://github.com/poanetwork/posdao-contracts/blob/master/contracts/TxPermission.sol
-
-contract TxPermission {
-    /// Allowed transaction types mask
-    uint32 constant None = 0;
-    uint32 constant All = 0xffffffff;
-    uint32 constant Basic = 0x01;
-    uint32 constant Call = 0x02;
-    uint32 constant Create = 0x04;
-    uint32 constant Private = 0x08;
-
-    /// Contract name
-    function contractName() public constant returns (string) {
-        return "TX_PERMISSION_CONTRACT";
-    }
-
-    /// Contract name hash
-    function contractNameHash() public constant returns (bytes32) {
-        return keccak256(contractName());
-    }
-
-    /// Contract version
-    function contractVersion() public constant returns (uint256) {
-        return 4;
-    }
-
-    /// @dev Defines the allowed transaction types which may be initiated by the specified sender with
-    /// the specified gas price and data. Used by node's engine each time a transaction is about to be
-    /// included into a block. See https://openethereum.github.io/Permissioning.html#how-it-works-1
-    /// @param _sender Transaction sender address.
-    /// @param _to Transaction recipient address. If creating a contract, the `_to` address is zero.
-    /// @param _value Transaction amount in wei.
-    /// @param _maxFeePerGas The `maxFeePerGas` in Wei for EIP-1559 transaction, or gas price for a legacy transaction.
-    /// @param _maxInclusionFeePerGas The `maxInclusionFeePerGas` in Wei for EIP-1559 transaction.
-    /// Equals to gas price for a legacy transaction.
-    /// @param _gasLimit Gas limit for the transaction.
-    /// @param _data Transaction data.
-    /// @return `uint32 typesMask` - Set of allowed transactions for `_sender` depending on tx `_to` address,
-    /// `_gasPrice`, and `_data`. The result is represented as a set of flags:
-    /// 0x01 - basic transaction (e.g. ether transferring to user wallet);
-    /// 0x02 - contract call;
-    /// 0x04 - contract creation;
-    /// 0x08 - private transaction.
-    /// `bool cache` - If `true` is returned, the same permissions will be applied from the same
-    /// `_sender` without calling this contract again.
-    function allowedTxTypes(
-        address _sender,
-        address _to,
-        uint256 _value,
-        uint256 _maxFeePerGas, // equals to gasPrice for legacy transactions
-        uint256 _maxInclusionFeePerGas, // equals to gasPrice for legacy transactions
-        uint256 _gasLimit,
-        bytes memory _data
-    )
-        public
-        view
-        returns(uint32 typesMask, bool cache)
-    {
-        if (_maxFeePerGas > 0 || _data.length < 4) return (All, false);
-		return (None, false);
-    }
-}
--- a/crates/ethcore/res/chainspec/test/contract_ver_4_genesis.json
+++ b/crates/ethcore/res/chainspec/test/contract_ver_4_genesis.json
@ -1,44 +0,0 @@
-{
-	"name": "TestNodeFilterContract",
-	"engine": {
-		"authorityRound": {
-			"params": {
-				"stepDuration": 1,
-				"startStep": 2,
-				"validators": {
-					"contract": "0x0000000000000000000000000000000000000000"
-				}
-			}
-		}
-	},
-	"params": {
-		"accountStartNonce": "0x0",
-		"maximumExtraDataSize": "0x20",
-		"minGasLimit": "0x1388",
-		"networkID" : "0x69",
-		"gasLimitBoundDivisor": "0x0400",
-		"transactionPermissionContract": "0xAB5b100cf7C8deFB3c8f3C48474223997A50fB13",
-		"transactionPermissionContractTransition": "1"
-	},
-	"genesis": {
-		"seal": {
-			"generic": "0xc180"
-		},
-		"difficulty": "0x20000",
-		"author": "0x0000000000000000000000000000000000000000",
-		"timestamp": "0x00",
-		"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
-		"extraData": "0x",
-		"gasLimit": "0x222222"
-	},
-	"accounts": {
-		"0000000000000000000000000000000000000001": { "balance": "1", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
-		"0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
-		"0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
-		"0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
-		"0xAB5b100cf7C8deFB3c8f3C48474223997A50fB13": {
-			"balance": "1",
-			"constructor": "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"
-		}
-	}
-}
--- a/crates/ethcore/res/chainspec/test/eip3607_test.json
+++ b/crates/ethcore/res/chainspec/test/eip3607_test.json
@ -1,47 +0,0 @@
-{
-  "name": "Morden",
-  "engine": {
-    "null": {
-      "params": {}
-    }
-  },
-  "params": {
-    "gasLimitBoundDivisor": "0x0400",
-    "accountStartNonce": "0x0",
-    "maximumExtraDataSize": "0x20",
-    "minGasLimit": "0x1388",
-    "networkID" : "0x2",
-    "registrar" : "0x0000000000000000000000000000000000001337",
-    "eip140Transition": "0x0",
-    "eip211Transition": "0x0",
-    "eip214Transition": "0x0",
-    "eip658Transition": "0x0",
-    "eip3607Transition": "0x2"
-  },
-  "genesis": {
-    "seal": {
-      "ethereum": {
-        "nonce": "0x00006d6f7264656e",
-        "mixHash": "0x00000000000000000000000000000000000000647572616c65787365646c6578"
-      }
-    },
-    "difficulty": "0x20000",
-    "author": "0x0000000000000000000000000000000000000000",
-    "timestamp": "0x00",
-    "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
-    "extraData": "0x",
-    "gasLimit": "0x2fefd8"
-  },
-  "accounts": {
-    "0000000000000000000000000000000000000001": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
-    "0000000000000000000000000000000000000002": { "balance": "1", "nonce": "1048576", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
-    "0000000000000000000000000000000000000003": { "balance": "1", "nonce": "1048576", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
-    "0000000000000000000000000000000000000004": { "balance": "1", "nonce": "1048576", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
-    "102e61f5d8f9bc71d0ad4a084df4e65e05ce0e1c": { "balance": "1606938044258990275541962092341162602522202993782792835301376", "nonce": "1048576" },
-    "0x71562b71999873DB5b286dF957af199Ec94617F7": {
-      "balance": "1000000000000000000",
-      "nonce": "0",
-      "code": "0xB0B0FACE"
-    }
-  }
-}
--- a/crates/ethcore/res/chainspec/xdai.json
+++ b/crates/ethcore/res/chainspec/xdai.json
@ -56,15 +56,6 @@
 		"eip2028Transition": 7298030,
 		"eip2929Transition": 16101500,
 		"eip2930Transition": 16101500,
-		"eip3198Transition": 19040000,
-		"eip3529Transition": 19040000,
-		"eip3541Transition": 19040000,
-		"eip1559Transition": 19040000,
-		"eip1559BaseFeeMaxChangeDenominator": "0x8",
-		"eip1559ElasticityMultiplier": "0x2",
-		"eip1559BaseFeeInitialValue": "0x3b9aca00",
-		"eip1559FeeCollector": "0x6BBe78ee9e474842Dbd4AB4987b3CeFE88426A92",
-		"eip1559FeeCollectorTransition": 19040000,
 		"registrar": "0x6B53721D4f2Fb9514B85f5C49b197D857e36Cf03",
 		"transactionPermissionContract": "0x7Dd7032AA75A37ea0b150f57F899119C7379A78b",
 		"transactionPermissionContractTransition": 9186425
--- a/crates/ethcore/res/contracts/tx_acl_1559.json
+++ b/crates/ethcore/res/contracts/tx_acl_1559.json
@ -1,91 +0,0 @@
-[
-	{
-		"constant": true,
-		"inputs": [],
-		"name": "contractNameHash",
-		"outputs": [
-			{
-				"name": "",
-				"type": "bytes32"
-			}
-		],
-		"payable": false,
-		"stateMutability": "view",
-		"type": "function"
-	},
-	{
-		"constant": true,
-		"inputs": [],
-		"name": "contractName",
-		"outputs": [
-			{
-				"name": "",
-				"type": "string"
-			}
-		],
-		"payable": false,
-		"stateMutability": "view",
-		"type": "function"
-	},
-	{
-		"constant": true,
-		"inputs": [],
-		"name": "contractVersion",
-		"outputs": [
-			{
-				"name": "",
-				"type": "uint256"
-			}
-		],
-		"payable": false,
-		"stateMutability": "view",
-		"type": "function"
-	},
-	{
-		"constant": true,
-		"inputs": [
-			{
-				"name": "sender",
-				"type": "address"
-			},
-			{
-				"name": "to",
-				"type": "address"
-			},
-			{
-				"name": "value",
-				"type": "uint256"
-			},
-			{
-				"name": "maxFeePerGas",
-				"type": "uint256"
-			},
-			{
-				"name": "maxPriorityFeePerGas",
-				"type": "uint256"
-			},
-			{
-				"name": "gasLimit",
-				"type": "uint256"
-			},
-			{
-				"name": "data",
-				"type": "bytes"
-			}
-		],
-		"name": "allowedTxTypes",
-		"outputs": [
-			{
-				"name": "",
-				"type": "uint32"
-			},
-			{
-				"name": "",
-				"type": "bool"
-			}
-		],
-		"payable": false,
-		"stateMutability": "view",
-		"type": "function"
-	}
-]
--- a/crates/ethcore/src/client/client.rs
+++ b/crates/ethcore/src/client/client.rs
@ -488,52 +488,6 @@ impl Importer {
            .epoch_transition(parent.number(), *header.parent_hash())
            .is_some();

-        if header.number() >= engine.params().validate_service_transactions_transition {
-            // Check if zero gas price transactions are certified to be service transactions
-            // using the Certifier contract. If they are not certified, the block is treated as invalid.
-            let service_transaction_checker = self.miner.service_transaction_checker();
-            if service_transaction_checker.is_some() {
-                match service_transaction_checker.unwrap().refresh_cache(client) {
-                    Ok(true) => {
-                        trace!(target: "client", "Service transaction cache was refreshed successfully");
-                    }
-                    Ok(false) => {
-                        trace!(target: "client", "Registrar or/and service transactions contract does not exist");
-                    }
-                    Err(e) => {
-                        error!(target: "client", "Error occurred while refreshing service transaction cache: {}", e)
-                    }
-                };
-            };
-            for t in &block.transactions {
-                if t.has_zero_gas_price() {
-                    match self.miner.service_transaction_checker() {
-                        None => {
-                            let e = "Service transactions are not allowed. You need to enable Certifier contract.";
-                            warn!(target: "client", "Service tx checker error: {:?}", e);
-                            bail!(e);
-                        }
-                        Some(ref checker) => match checker.check(client, &t) {
-                            Ok(true) => {}
-                            Ok(false) => {
-                                let e = format!(
-                                    "Service transactions are not allowed for the sender {:?}",
-                                    t.sender()
-                                );
-                                warn!(target: "client", "Service tx checker error: {:?}", e);
-                                bail!(e);
-                            }
-                            Err(e) => {
-                                debug!(target: "client", "Unable to verify service transaction: {:?}", e);
-                                warn!(target: "client", "Service tx checker error: {:?}", e);
-                                bail!(e);
-                            }
-                        },
-                    }
-                };
-            }
-        }
-
        // t_nb 8.0 Block enacting. Execution of transactions.
        let enact_result = enact_verified(
            block,
@ -2001,7 +1955,7 @@ impl Call for Client {
            gas_used: U256::default(),
            gas_limit: U256::max_value(),
            //if gas pricing is not defined, force base_fee to zero
-            base_fee: if transaction.effective_gas_price(header.base_fee()).is_zero() {
+            base_fee: if transaction.effective_gas_price(header.base_fee()) == 0.into() {
                Some(0.into())
            } else {
                header.base_fee()
@ -2034,7 +1988,7 @@ impl Call for Client {

        for &(ref t, analytics) in transactions {
            //if gas pricing is not defined, force base_fee to zero
-            if t.effective_gas_price(header.base_fee()).is_zero() {
+            if t.effective_gas_price(header.base_fee()) == 0.into() {
                env_info.base_fee = Some(0.into());
            } else {
                env_info.base_fee = header.base_fee()
@ -2066,7 +2020,7 @@ impl Call for Client {
                last_hashes: self.build_last_hashes(header.parent_hash()),
                gas_used: U256::default(),
                gas_limit: max,
-                base_fee: if t.effective_gas_price(header.base_fee()).is_zero() {
+                base_fee: if t.effective_gas_price(header.base_fee()) == 0.into() {
                    Some(0.into())
                } else {
                    header.base_fee()
--- a/crates/ethcore/src/client/test_client.rs
+++ b/crates/ethcore/src/client/test_client.rs
@ -1087,17 +1087,6 @@ impl BlockChainClient for TestBlockChainClient {
            let mut rlp = RlpStream::new();
            rlp.append(&hash.clone());
            return Some(rlp.out());
-        } else if *hash
-            == H256::from_str("000000000000000000000000000000000000000000000000000000000000000a")
-                .unwrap()
-        {
-            // for basic `return_node_data` tests
-            return Some(vec![0xaa, 0xaa]);
-        } else if *hash
-            == H256::from_str("000000000000000000000000000000000000000000000000000000000000000c")
-                .unwrap()
-        {
-            return Some(vec![0xcc]);
        }
        None
    }
--- a/crates/ethcore/src/client/traits.rs
+++ b/crates/ethcore/src/client/traits.rs
@ -413,40 +413,6 @@ pub trait BlockChainClient:
        corpus.into()
    }

-    /// Sorted list of transaction priority gas prices from at least last sample_size blocks.
-    fn priority_gas_price_corpus(
-        &self,
-        sample_size: usize,
-        eip1559_transition: BlockNumber,
-    ) -> ::stats::Corpus<U256> {
-        let mut h = self.chain_info().best_block_hash;
-        let mut corpus = Vec::new();
-        while corpus.is_empty() {
-            for _ in 0..sample_size {
-                let block = match self.block(BlockId::Hash(h)) {
-                    Some(block) => block,
-                    None => return corpus.into(),
-                };
-
-                if block.number() == 0 || block.number() < eip1559_transition {
-                    return corpus.into();
-                }
-                block
-                    .transaction_views()
-                    .iter()
-                    .filter(
-                        |t| t.gas_price() > 0.into(), /* filter zero cost transactions */
-                    )
-                    .foreach(|t| {
-                        // As block.number() >= eip_1559_transition, the base_fee should exist
-                        corpus.push(t.effective_priority_gas_price(Some(block.header().base_fee())))
-                    });
-                h = block.parent_hash().clone();
-            }
-        }
-        corpus.into()
-    }
-
    /// Get the preferred chain ID to sign on
    fn signing_chain_id(&self) -> Option<u64>;

--- a/crates/ethcore/src/engines/authority_round/mod.rs
+++ b/crates/ethcore/src/engines/authority_round/mod.rs
@ -1557,43 +1557,6 @@ impl Engine<EthereumMachine> for AuthorityRound {
        }
    }

-    // Mostly is the same as `fn sealing_state(&self)` except that it does not
-    // check whether the node is a step proposer.
-    fn is_allowed_to_seal(&self) -> bool {
-        let our_addr = match *self.signer.read() {
-            Some(ref signer) => signer.address(),
-            None => return false,
-        };
-
-        let client = match self.upgrade_client_or("Not preparing block") {
-            Ok(client) => client,
-            Err(_) => return false,
-        };
-
-        let parent = match client.as_full_client() {
-            Some(full_client) => full_client.best_block_header(),
-            None => {
-                return false;
-            }
-        };
-
-        let validators = if self.immediate_transitions {
-            CowLike::Borrowed(&*self.validators)
-        } else {
-            let mut epoch_manager = self.epoch_manager.lock();
-            if !epoch_manager.zoom_to_after(
-                &*client,
-                &self.machine,
-                &*self.validators,
-                parent.hash(),
-            ) {
-                return false;
-            }
-            CowLike::Owned(epoch_manager.validators().clone())
-        };
-        validators.contains(&parent.hash(), &our_addr)
-    }
-
    fn sealing_state(&self) -> SealingState {
        let our_addr = match *self.signer.read() {
            Some(ref signer) => signer.address(),
--- a/crates/ethcore/src/engines/mod.rs
+++ b/crates/ethcore/src/engines/mod.rs
@ -470,14 +470,6 @@ pub trait Engine<M: Machine>: Sync + Send {
    /// Register a component which signs consensus messages.
    fn set_signer(&self, _signer: Option<Box<dyn EngineSigner>>) {}

-    /// Returns whether the current node is a validator and
-    /// actually may seal a block if AuRa engine is used.
-    ///
-    /// Used by `eth_mining` rpc call.
-    fn is_allowed_to_seal(&self) -> bool {
-        true
-    }
-
    /// Sign using the EngineSigner, to be used for consensus tx signing.
    fn sign(&self, _hash: H256) -> Result<Signature, M::Error> {
        unimplemented!()
@ -668,14 +660,6 @@ pub trait EthEngine: Engine<::machine::EthereumMachine> {
    fn min_gas_limit(&self) -> U256 {
        self.params().min_gas_limit
    }
-
-    /// Returns whether transactions from non externally owned accounts (EOA)
-    /// are allowed in the given block number (see EIP-3607).
-    ///
-    /// That is only possible if EIP-3607 is still not activated.
-    fn allow_non_eoa_sender(&self, best_block_number: BlockNumber) -> bool {
-        self.params().eip3607_transition > best_block_number
-    }
 }

 // convenience wrappers for existing functions.
--- a/crates/ethcore/src/executive.rs
+++ b/crates/ethcore/src/executive.rs
@ -1207,7 +1207,7 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
        }

        // ensure that the user was willing to at least pay the base fee
-        if t.tx().gas_price < self.info.base_fee.unwrap_or_default() && !t.has_zero_gas_price() {
+        if t.tx().gas_price < self.info.base_fee.unwrap_or_default() {
            return Err(ExecutionError::GasPriceLowerThanBaseFee {
                gas_price: t.tx().gas_price,
                base_fee: self.info.base_fee.unwrap_or_default(),
@ -1516,20 +1516,18 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
        // Up until now, fees_value is calculated for each type of transaction based on their gas prices
        // Now, if eip1559 is activated, burn the base fee
        // miner only receives the inclusion fee; note that the base fee is not given to anyone (it is burned)
-        let burnt_fee = if schedule.eip1559 && !t.has_zero_gas_price() {
-            let (fee, overflow_3) =
+        let fees_value = fees_value.saturating_sub(if schedule.eip1559 {
+            let (base_fee, overflow_3) =
                gas_used.overflowing_mul(self.info.base_fee.unwrap_or_default());
            if overflow_3 {
                return Err(ExecutionError::TransactionMalformed(
                    "U256 Overflow".to_string(),
                ));
            }
-            fee
+            base_fee
        } else {
            U256::from(0)
-        };
-
-        let fees_value = fees_value.saturating_sub(burnt_fee);
+        });

        trace!("exec::finalize: t.gas={}, sstore_refunds={}, suicide_refunds={}, refunds_bound={}, gas_left_prerefund={}, refunded={}, gas_left={}, gas_used={}, refund_value={}, fees_value={}\n",
 			t.tx().gas, sstore_refunds, suicide_refunds, refunds_bound, gas_left_prerefund, refunded, gas_left, gas_used, refund_value, fees_value);
@ -1554,17 +1552,6 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
            substate.to_cleanup_mode(&schedule),
        )?;

-        if burnt_fee > U256::from(0)
-            && self.machine.params().eip1559_fee_collector.is_some()
-            && self.info.number >= self.machine.params().eip1559_fee_collector_transition
-        {
-            self.state.add_balance(
-                &self.machine.params().eip1559_fee_collector.unwrap(),
-                &burnt_fee,
-                substate.to_cleanup_mode(&schedule),
-            )?;
-        };
-
        // perform suicides
        for address in &substate.suicides {
            self.state.kill_account(address);
@ -2760,127 +2747,6 @@ mod tests {
        }
    }

-    evm_test! {test_too_big_max_priority_fee_with_not_enough_cash: test_too_big_max_priority_fee_with_not_enough_cash_int}
-    fn test_too_big_max_priority_fee_with_not_enough_cash(factory: Factory) {
-        let keypair = Random.generate();
-        let max_priority_fee_per_gas /* 2**256 - 1 */ = U256::from(340282366920938463463374607431768211455u128)
-            * U256::from(340282366920938463463374607431768211455u128)
-            + U256::from(340282366920938463463374607431768211455u128)
-            + U256::from(340282366920938463463374607431768211455u128);
-        let t = TypedTransaction::EIP1559Transaction(EIP1559TransactionTx {
-            transaction: AccessListTx::new(
-                Transaction {
-                    action: Action::Create,
-                    value: U256::from(17),
-                    data: "3331600055".from_hex().unwrap(),
-                    gas: U256::from(100_000),
-                    gas_price: max_priority_fee_per_gas,
-                    nonce: U256::zero(),
-                },
-                vec![
-                    (
-                        H160::from_low_u64_be(10),
-                        vec![H256::from_low_u64_be(102), H256::from_low_u64_be(103)],
-                    ),
-                    (H160::from_low_u64_be(400), vec![]),
-                ],
-            ),
-            max_priority_fee_per_gas,
-        })
-        .sign(keypair.secret(), None);
-
-        let sender = t.sender();
-
-        let mut state = get_temp_state_with_factory(factory);
-        state
-            .add_balance(&sender, &U256::from(15000017), CleanupMode::NoEmpty)
-            .unwrap();
-        let mut info = EnvInfo::default();
-        info.gas_limit = U256::from(100_000);
-        info.base_fee = Some(U256::from(100));
-        let machine = make_london_machine(0);
-        let schedule = machine.schedule(info.number);
-
-        let res = {
-            let mut ex = Executive::new(&mut state, &info, &machine, &schedule);
-            let opts = TransactOptions::with_no_tracing();
-            ex.transact(&t, opts)
-        };
-
-        match res {
-            Err(ExecutionError::NotEnoughCash { required, got })
-                if required
-                    == U512::from(max_priority_fee_per_gas) * U512::from(100_000)
-                        + U512::from(17)
-                    && got == U512::from(15000017) =>
-            {
-                ()
-            }
-            _ => assert!(false, "Expected not enough cash error. {:?}", res),
-        }
-    }
-
-    evm_test! {test_too_big_max_priority_fee_with_less_max_fee_per_gas: test_too_big_max_priority_fee_with_less_max_fee_per_gas_int}
-    fn test_too_big_max_priority_fee_with_less_max_fee_per_gas(factory: Factory) {
-        let keypair = Random.generate();
-        let max_priority_fee_per_gas /* 2**256 - 1 */ = U256::from(340282366920938463463374607431768211455u128)
-            * U256::from(340282366920938463463374607431768211455u128)
-            + U256::from(340282366920938463463374607431768211455u128)
-            + U256::from(340282366920938463463374607431768211455u128);
-        let t = TypedTransaction::EIP1559Transaction(EIP1559TransactionTx {
-            transaction: AccessListTx::new(
-                Transaction {
-                    action: Action::Create,
-                    value: U256::from(17),
-                    data: "3331600055".from_hex().unwrap(),
-                    gas: U256::from(100_000),
-                    gas_price: U256::from(150),
-                    nonce: U256::zero(),
-                },
-                vec![
-                    (
-                        H160::from_low_u64_be(10),
-                        vec![H256::from_low_u64_be(102), H256::from_low_u64_be(103)],
-                    ),
-                    (H160::from_low_u64_be(400), vec![]),
-                ],
-            ),
-            max_priority_fee_per_gas,
-        })
-        .sign(keypair.secret(), None);
-
-        let sender = t.sender();
-
-        let mut state = get_temp_state_with_factory(factory);
-        state
-            .add_balance(&sender, &U256::from(15000017), CleanupMode::NoEmpty)
-            .unwrap();
-        let mut info = EnvInfo::default();
-        info.gas_limit = U256::from(100_000);
-        info.base_fee = Some(U256::from(100));
-        let machine = make_london_machine(0);
-        let schedule = machine.schedule(info.number);
-
-        let res = {
-            let mut ex = Executive::new(&mut state, &info, &machine, &schedule);
-            let opts = TransactOptions::with_no_tracing();
-            ex.transact(&t, opts)
-        };
-
-        match res {
-            Err(ExecutionError::TransactionMalformed(err))
-                if err.contains("maxPriorityFeePerGas higher than maxFeePerGas") =>
-            {
-                ()
-            }
-            _ => assert!(
-                false,
-                "Expected maxPriorityFeePerGas higher than maxFeePerGas error. {:?}",
-                res
-            ),
-        }
-    }
-
    evm_test! {test_keccak: test_keccak_int}
    fn test_keccak(factory: Factory) {
        let code = "6064640fffffffff20600055".from_hex().unwrap();
--- a/crates/ethcore/src/machine/impls.rs
+++ b/crates/ethcore/src/machine/impls.rs
@ -376,7 +376,7 @@ impl EthereumMachine {
        header: &Header,
    ) -> Result<SignedTransaction, transaction::Error> {
        // ensure that the user was willing to at least pay the base fee
-        if t.tx().gas_price < header.base_fee().unwrap_or_default() && !t.has_zero_gas_price() {
+        if t.tx().gas_price < header.base_fee().unwrap_or_default() {
            return Err(transaction::Error::GasPriceLowerThanBaseFee {
                gas_price: t.tx().gas_price,
                base_fee: header.base_fee().unwrap_or_default(),
@ -466,32 +466,15 @@ impl EthereumMachine {
    /// Base fee is calculated based on the parent header (last block in blockchain / best block).
    ///
    /// Introduced by EIP1559 to support new market fee mechanism.
-    ///
-    /// Modified for xDai chain to have an ability to set min base fee
-    /// through eip1559BaseFeeMinValue spec option. The modification made
-    /// in v3.3.0-rc.14
    pub fn calc_base_fee(&self, parent: &Header) -> Option<U256> {
        // Block eip1559_transition - 1 has base_fee = None
        if parent.number() + 1 < self.params().eip1559_transition {
            return None;
        }

-        let base_fee_min_value =
-            if parent.number() + 1 >= self.params().eip1559_base_fee_min_value_transition {
-                match self.params().eip1559_base_fee_min_value {
-                    None => panic!("Base fee min value must be set in spec."),
-                    Some(min_value) => min_value,
-                }
-            } else {
-                U256::zero()
-            };
-
        // Block eip1559_transition has base_fee = self.params().eip1559_base_fee_initial_value
        if parent.number() + 1 == self.params().eip1559_transition {
-            return Some(max(
-                self.params().eip1559_base_fee_initial_value,
-                base_fee_min_value,
-            ));
+            return Some(self.params().eip1559_base_fee_initial_value);
        }

        // Block eip1559_transition + 1 has base_fee = calculated
@ -509,23 +492,21 @@ impl EthereumMachine {
            panic!("Can't calculate base fee if parent gas target is zero.");
        }

-        let result = if parent.gas_used() == &parent_gas_target {
-            parent_base_fee
+        if parent.gas_used() == &parent_gas_target {
+            Some(parent_base_fee)
        } else if parent.gas_used() > &parent_gas_target {
            let gas_used_delta = parent.gas_used() - parent_gas_target;
            let base_fee_per_gas_delta = max(
                parent_base_fee * gas_used_delta / parent_gas_target / base_fee_denominator,
                U256::from(1),
            );
-            parent_base_fee + base_fee_per_gas_delta
+            Some(parent_base_fee + base_fee_per_gas_delta)
        } else {
            let gas_used_delta = parent_gas_target - parent.gas_used();
            let base_fee_per_gas_delta =
                parent_base_fee * gas_used_delta / parent_gas_target / base_fee_denominator;
-            max(parent_base_fee - base_fee_per_gas_delta, U256::zero())
-        };
-
-        Some(max(result, base_fee_min_value))
+            Some(max(parent_base_fee - base_fee_per_gas_delta, U256::zero()))
+        }
    }
 }

--- a/crates/ethcore/src/miner/miner.rs
+++ b/crates/ethcore/src/miner/miner.rs
@ -190,7 +190,6 @@ impl Default for MinerOptions {
                block_base_fee: None,
                tx_gas_limit: U256::max_value(),
                no_early_reject: false,
-                allow_non_eoa_sender: false,
            },
        }
    }
@ -342,7 +341,6 @@ impl Miner {
                    block_base_fee: None,
                    tx_gas_limit: U256::max_value(),
                    no_early_reject: false,
-                    allow_non_eoa_sender: false,
                },
                reseal_min_period: Duration::from_secs(0),
                force_sealing,
@ -384,7 +382,6 @@ impl Miner {
        &self,
        block_gas_limit: U256,
        block_base_fee: Option<U256>,
-        allow_non_eoa_sender: bool,
    ) {
        trace!(target: "miner", "minimal_gas_price: recalibrating...");
        let txq = self.transaction_queue.clone();
@ -394,7 +391,6 @@ impl Miner {
            options.minimal_gas_price = gas_price;
            options.block_gas_limit = block_gas_limit;
            options.block_base_fee = block_base_fee;
-            options.allow_non_eoa_sender = allow_non_eoa_sender;
            txq.set_verifier_options(options);
        });

@ -1010,14 +1006,6 @@ impl miner::MinerService for Miner {
        self.transaction_queue.current_worst_gas_price() * 110u32 / 100
    }

-    fn sensible_max_priority_fee(&self) -> U256 {
-        // 10% above our minimum.
-        self.transaction_queue
-            .current_worst_effective_priority_fee()
-            * 110u32
-            / 100
-    }
-
    fn sensible_gas_limit(&self) -> U256 {
        self.params.read().gas_range_target.0 / 5
    }
@ -1381,7 +1369,7 @@ impl miner::MinerService for Miner {
    }

    fn is_currently_sealing(&self) -> bool {
-        self.sealing.lock().enabled && self.engine.is_allowed_to_seal()
+        self.sealing.lock().enabled
    }

    fn work_package<C>(&self, chain: &C) -> Option<(H256, BlockNumber, u64, U256)>
@ -1470,10 +1458,7 @@ impl miner::MinerService for Miner {
                } else {
                    1
                };
-        let allow_non_eoa_sender = self
-            .engine
-            .allow_non_eoa_sender(chain.best_block_header().number() + 1);
-        self.update_transaction_queue_limits(gas_limit, base_fee, allow_non_eoa_sender);
+        self.update_transaction_queue_limits(gas_limit, base_fee);

        // t_nb 10.2 Then import all transactions from retracted blocks (retracted means from side chain).
        let client = self.pool_client(chain);
@ -1615,9 +1600,7 @@ mod tests {

    use client::{ChainInfo, EachBlockWith, ImportSealedBlock, TestBlockChainClient};
    use miner::{MinerService, PendingOrdering};
-    use test_helpers::{
-        dummy_engine_signer_with_address, generate_dummy_client, generate_dummy_client_with_spec,
-    };
+    use test_helpers::{generate_dummy_client, generate_dummy_client_with_spec};
    use types::transaction::{Transaction, TypedTransaction};

    #[test]
@ -1677,7 +1660,6 @@ mod tests {
                    block_base_fee: None,
                    tx_gas_limit: U256::max_value(),
                    no_early_reject: false,
-                    allow_non_eoa_sender: false,
                },
            },
            GasPricer::new_fixed(0u64.into()),
@ -1823,40 +1805,6 @@ mod tests {
        );
    }

-    #[test]
-    fn should_activate_eip_3607_according_to_spec() {
-        // given
-        let spec = Spec::new_test_eip3607();
-        let miner = Miner::new_for_tests(&spec, None);
-        let client = TestBlockChainClient::new_with_spec(spec);
-
-        let imported = [H256::zero()];
-        let empty = &[];
-
-        // the client best block is below EIP-3607 transition number
-        miner.chain_new_blocks(&client, &imported, empty, &imported, empty, false);
-        assert!(
-            miner.queue_status().options.allow_non_eoa_sender,
-            "The client best block is below EIP-3607 transition number. Non EOA senders should be allowed"
-        );
-
-        // the client best block equals EIP-3607 transition number
-        client.add_block(EachBlockWith::Nothing, |header| header);
-        miner.chain_new_blocks(&client, &imported, empty, &imported, empty, false);
-        assert!(
-            !miner.queue_status().options.allow_non_eoa_sender,
-            "The client best block equals EIP-3607 transition number. Non EOA senders should not be allowed"
-        );
-
-        // the client best block is above EIP-3607 transition number
-        client.add_block(EachBlockWith::Nothing, |header| header);
-        miner.chain_new_blocks(&client, &imported, empty, &imported, empty, false);
-        assert!(
-            !miner.queue_status().options.allow_non_eoa_sender,
-            "The client best block is above EIP-3607 transition number. Non EOA senders should not be allowed"
-        );
-    }
-
    #[test]
    fn should_treat_unfamiliar_locals_selectively() {
        // given
@ -2122,31 +2070,6 @@ mod tests {
        assert!(miner.is_currently_sealing());
    }

-    #[test]
-    fn should_not_mine_if_is_not_allowed_to_seal() {
-        let spec = Spec::new_test_round();
-        let miner = Miner::new_for_tests_force_sealing(&spec, None, true);
-        assert!(!miner.is_currently_sealing());
-    }
-
-    #[test]
-    fn should_mine_if_is_allowed_to_seal() {
-        let verifier: Address = [
-            0x7d, 0x57, 0x7a, 0x59, 0x7b, 0x27, 0x42, 0xb4, 0x98, 0xcb, 0x5c, 0xf0, 0xc2, 0x6c,
-            0xdc, 0xd7, 0x26, 0xd3, 0x9e, 0x6e,
-        ]
-        .into();
-
-        let spec = Spec::new_test_round();
-        let client: Arc<dyn EngineClient> = generate_dummy_client(2);
-
-        let miner = Miner::new_for_tests_force_sealing(&spec, None, true);
-        miner.engine.register_client(Arc::downgrade(&client));
-        miner.set_author(Author::Sealer(dummy_engine_signer_with_address(verifier)));
-
-        assert!(miner.is_currently_sealing());
-    }
-
    #[test]
    fn should_set_new_minimum_gas_price() {
        // Creates a new GasPricer::Fixed behind the scenes
--- a/crates/ethcore/src/miner/mod.rs
+++ b/crates/ethcore/src/miner/mod.rs
@ -260,9 +260,6 @@ pub trait MinerService: Send + Sync {
    /// Suggested gas price.
    fn sensible_gas_price(&self) -> U256;

-    /// Suggested max priority fee gas price
-    fn sensible_max_priority_fee(&self) -> U256;
-
    /// Suggested gas limit.
    fn sensible_gas_limit(&self) -> U256;

--- a/crates/ethcore/src/miner/pool_client.rs
+++ b/crates/ethcore/src/miner/pool_client.rs
@ -30,7 +30,7 @@ use types::{
 };

 use call_contract::CallContract;
-use client::{BlockId, BlockInfo, Nonce, TransactionId};
+use client::{BlockInfo, Nonce, TransactionId};
 use engines::EthEngine;
 use miner;
 use transaction_ext::Transaction;
@ -168,7 +168,6 @@ where
        pool::client::AccountDetails {
            nonce: self.cached_nonces.account_nonce(address),
            balance: self.chain.latest_balance(address),
-            code_hash: self.chain.code_hash(address, BlockId::Latest),
            is_local: self.accounts.is_local(address),
        }
    }
--- a/crates/ethcore/src/spec/spec.rs
+++ b/crates/ethcore/src/spec/spec.rs
@ -147,8 +147,6 @@ pub struct CommonParams {
    pub eip3529_transition: BlockNumber,
    /// Number of first block where EIP-3541 rule begins.
    pub eip3541_transition: BlockNumber,
-    /// Number of first block where EIP-3607 rule begins.
-    pub eip3607_transition: BlockNumber,
    /// Number of first block where dust cleanup rules (EIP-168 and EIP169) begin.
    pub dust_protection_transition: BlockNumber,
    /// Nonce cap increase per block. Nonce cap is only checked if dust protection is enabled.
@ -185,16 +183,6 @@ pub struct CommonParams {
    pub eip1559_elasticity_multiplier: U256,
    /// Default value for the block base fee
    pub eip1559_base_fee_initial_value: U256,
-    /// Min value for the block base fee.
-    pub eip1559_base_fee_min_value: Option<U256>,
-    /// Block at which the min value for the base fee starts to be used.
-    pub eip1559_base_fee_min_value_transition: BlockNumber,
-    /// Address where EIP-1559 burnt fee will be accrued to.
-    pub eip1559_fee_collector: Option<Address>,
-    /// Block at which the fee collector should start being used.
-    pub eip1559_fee_collector_transition: BlockNumber,
-    /// Block at which zero gas price transactions start being checked with Certifier contract.
-    pub validate_service_transactions_transition: BlockNumber,
 }

 impl CommonParams {
@ -436,7 +424,6 @@ impl From<ethjson::spec::Params> for CommonParams {
            dust_protection_transition: p
                .dust_protection_transition
                .map_or_else(BlockNumber::max_value, Into::into),
-            eip3607_transition: p.eip3607_transition.map_or(0, Into::into),
            nonce_cap_increment: p.nonce_cap_increment.map_or(64, Into::into),
            remove_dust_contracts: p.remove_dust_contracts.unwrap_or(false),
            gas_limit_bound_divisor: p.gas_limit_bound_divisor.into(),
@ -472,17 +459,6 @@ impl From<ethjson::spec::Params> for CommonParams {
            eip1559_base_fee_initial_value: p
                .eip1559_base_fee_initial_value
                .map_or_else(U256::zero, Into::into),
-            eip1559_base_fee_min_value: p.eip1559_base_fee_min_value.map(Into::into),
-            eip1559_base_fee_min_value_transition: p
-                .eip1559_base_fee_min_value_transition
-                .map_or_else(BlockNumber::max_value, Into::into),
-            eip1559_fee_collector: p.eip1559_fee_collector.map(Into::into),
-            eip1559_fee_collector_transition: p
-                .eip1559_fee_collector_transition
-                .map_or_else(BlockNumber::max_value, Into::into),
-            validate_service_transactions_transition: p
-                .validate_service_transactions_transition
-                .map_or_else(BlockNumber::max_value, Into::into),
        }
    }
 }
@ -758,9 +734,6 @@ impl Spec {
            params.kip6_transition,
            params.max_code_size_transition,
            params.transaction_permission_contract_transition,
-            params.eip1559_fee_collector_transition,
-            params.eip1559_base_fee_min_value_transition,
-            params.validate_service_transactions_transition,
        ];
        // BUG: Rinkeby has homestead transition at block 1 but we can't reflect that in specs for non-Ethash networks
        if params.network_id == 0x4 {
@ -1154,13 +1127,6 @@ impl Spec {
        load_bundled!("test/constructor")
    }

-    /// Create a new Spec which is a NullEngine consensus with EIP3607 transition equal to 2,
-    /// and with a contract at address '0x71562b71999873DB5b286dF957af199Ec94617F7'.
-    #[cfg(any(test, feature = "test-helpers"))]
-    pub fn new_test_eip3607() -> Self {
-        load_bundled!("test/eip3607_test")
-    }
-
    /// Create a new Spec with Autority Round randomness contract
    #[cfg(any(test, feature = "test-helpers"))]
    pub fn new_test_round_randomness_contract() -> Spec {
--- a/crates/ethcore/src/test_helpers.rs
+++ b/crates/ethcore/src/test_helpers.rs
@ -46,8 +46,6 @@ use block::{Drain, OpenBlock};
 use client::{
    ChainInfo, ChainMessageType, ChainNotify, Client, ClientConfig, ImportBlock, PrepareOpenBlock,
 };
-use engines::EngineSigner;
-use ethjson::crypto::publickey::{Public, Signature};
 use factory::Factories;
 use miner::Miner;
 use spec::Spec;
@ -646,38 +644,3 @@ impl ChainNotify for TestNotify {
        self.messages.write().push(data);
    }
 }
-
-/// Returns engine signer with specified address
-pub fn dummy_engine_signer_with_address(addr: Address) -> Box<dyn EngineSigner> {
-    struct TestEngineSigner(Address);
-
-    impl TestEngineSigner {
-        fn with_address(addr: Address) -> Self {
-            Self(addr)
-        }
-    }
-
-    impl EngineSigner for TestEngineSigner {
-        fn sign(&self, _hash: H256) -> Result<Signature, ethjson::crypto::publickey::Error> {
-            unimplemented!()
-        }
-
-        fn address(&self) -> Address {
-            self.0
-        }
-
-        fn decrypt(
-            &self,
-            _auth_data: &[u8],
-            _cipher: &[u8],
-        ) -> Result<Vec<u8>, parity_crypto::publickey::Error> {
-            unimplemented!()
-        }
-
-        fn public(&self) -> Option<Public> {
-            unimplemented!()
-        }
-    }
-
-    Box::new(TestEngineSigner::with_address(addr))
-}
--- a/crates/ethcore/src/tx_filter.rs
+++ b/crates/ethcore/src/tx_filter.rs
@ -39,7 +39,6 @@ use_contract!(
    transact_acl_gas_price,
    "res/contracts/tx_acl_gas_price.json"
 );
-use_contract!(transact_acl_1559, "res/contracts/tx_acl_1559.json");

 const MAX_CACHE_SIZE: usize = 4096;

@ -105,8 +104,6 @@ impl TransactionFilter {
        let sender = transaction.sender();
        let value = transaction.tx().value;
        let gas_price = transaction.tx().gas_price;
-        let max_priority_fee_per_gas = transaction.max_priority_fee_per_gas();
-        let gas_limit = transaction.tx().gas;
        let key = (*parent_hash, sender);

        if let Some(permissions) = permission_cache.get_mut(&key) {
@ -164,25 +161,6 @@ impl TransactionFilter {
 								(tx_permissions::NONE, true)
 							})
                    }
-                    4 => {
-                        trace!(target: "tx_filter", "Using filter with maxFeePerGas and maxPriorityFeePerGas and data");
-                        let (data, decoder) = transact_acl_1559::functions::allowed_tx_types::call(
-                            sender,
-                            to,
-                            value,
-                            gas_price,
-                            max_priority_fee_per_gas,
-                            gas_limit,
-                            transaction.tx().data.clone(),
-                        );
-                        client.call_contract(BlockId::Hash(*parent_hash), contract_address, data)
-							.and_then(|value| decoder.decode(&value).map_err(|e| e.to_string()))
-							.map(|(p, f)| (p.low_u32(), f))
-							.unwrap_or_else(|e| {
-								error!(target: "tx_filter", "Error calling tx permissions contract: {:?}", e);
-								(tx_permissions::NONE, true)
-							})
-                    }
                    _ => {
                        error!(target: "tx_filter", "Unknown version of tx permissions contract is used");
                        (tx_permissions::NONE, true)
@ -223,9 +201,7 @@ mod test {
    use std::{str::FromStr, sync::Arc};
    use tempdir::TempDir;
    use test_helpers;
-    use types::transaction::{
-        AccessListTx, Action, EIP1559TransactionTx, Transaction, TypedTransaction,
-    };
+    use types::transaction::{Action, Transaction, TypedTransaction};

    /// Contract code: https://gist.github.com/VladLupashevskyi/84f18eabb1e4afadf572cf92af3e7e7f
    #[test]
@ -462,7 +438,7 @@ mod test {
        ));
    }

-    /// Contract code: res/chainspec/test/contract_ver_3.sol
+    /// Contract code: res/tx_permission_tests/contract_ver_3.sol
    #[test]
    fn transaction_filter_ver_3() {
        let spec_data = include_str!("../res/chainspec/test/contract_ver_3_genesis.json");
@ -530,145 +506,6 @@ mod test {
        ));
    }

-    /// Contract code: res/chainspec/test/contract_ver_4.sol
-    #[test]
-    fn transaction_filter_ver_4_legacy() {
-        let spec_data = include_str!("../res/chainspec/test/contract_ver_4_genesis.json");
-
-        let db = test_helpers::new_db();
-        let tempdir = TempDir::new("").unwrap();
-        let spec = Spec::load(&tempdir.path(), spec_data.as_bytes()).unwrap();
-
-        let client = Client::new(
-            ClientConfig::default(),
-            &spec,
-            db,
-            Arc::new(Miner::new_for_tests(&spec, None)),
-            IoChannel::disconnected(),
-        )
-        .unwrap();
-        let key1 = KeyPair::from_secret(
-            Secret::from_str("0000000000000000000000000000000000000000000000000000000000000001")
-                .unwrap(),
-        )
-        .unwrap();
-
-        // The only difference to version 2 is that the contract now knows the transaction's gas price and data.
-        // So we only test those: The contract allows only transactions with either nonzero gas price or short data.
-
-        let filter = TransactionFilter::from_params(spec.params()).unwrap();
-        let mut tx = TypedTransaction::Legacy(Transaction::default());
-        tx.tx_mut().action =
-            Action::Call(Address::from_str("0000000000000000000000000000000000000042").unwrap());
-        tx.tx_mut().data = b"01234567".to_vec();
-        tx.tx_mut().gas_price = 0.into();
-
-        let genesis = client.block_hash(BlockId::Latest).unwrap();
-        let block_number = 1;
-
-        // Data too long and gas price zero. This transaction is not allowed.
-        assert!(!filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-
-        // But if we either set a nonzero gas price or short data or both, it is allowed.
-        tx.tx_mut().gas_price = 1.into();
-        assert!(filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-        tx.tx_mut().data = b"01".to_vec();
-        assert!(filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-        tx.tx_mut().gas_price = 0.into();
-        assert!(filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-    }
-
-    /// Contract code: res/chainspec/test/contract_ver_4.sol
-    #[test]
-    fn transaction_filter_ver_4_1559() {
-        let spec_data = include_str!("../res/chainspec/test/contract_ver_4_genesis.json");
-
-        let db = test_helpers::new_db();
-        let tempdir = TempDir::new("").unwrap();
-        let spec = Spec::load(&tempdir.path(), spec_data.as_bytes()).unwrap();
-
-        let client = Client::new(
-            ClientConfig::default(),
-            &spec,
-            db,
-            Arc::new(Miner::new_for_tests(&spec, None)),
-            IoChannel::disconnected(),
-        )
-        .unwrap();
-        let key1 = KeyPair::from_secret(
-            Secret::from_str("0000000000000000000000000000000000000000000000000000000000000001")
-                .unwrap(),
-        )
-        .unwrap();
-
-        // The only difference to version 2 is that the contract now knows the transaction's gas price and data.
-        // So we only test those: The contract allows only transactions with either nonzero gas price or short data.
-
-        let filter = TransactionFilter::from_params(spec.params()).unwrap();
-        let mut tx = TypedTransaction::EIP1559Transaction(EIP1559TransactionTx {
-            transaction: AccessListTx::new(Transaction::default(), vec![]),
-            max_priority_fee_per_gas: U256::from(0),
-        });
-        tx.tx_mut().action =
-            Action::Call(Address::from_str("0000000000000000000000000000000000000042").unwrap());
-        tx.tx_mut().data = b"01234567".to_vec();
-        tx.tx_mut().gas_price = 0.into();
-
-        let genesis = client.block_hash(BlockId::Latest).unwrap();
-        let block_number = 1;
-
-        // Data too long and gas price zero. This transaction is not allowed.
-        assert!(!filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-
-        // But if we either set a nonzero gas price or short data or both, it is allowed.
-        tx.tx_mut().gas_price = 1.into();
-        assert!(filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-        tx.tx_mut().data = b"01".to_vec();
-        assert!(filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-        tx.tx_mut().gas_price = 0.into();
-        assert!(filter.transaction_allowed(
-            &genesis,
-            block_number,
-            &tx.clone().sign(key1.secret(), None),
-            &*client
-        ));
-    }
-
    /// Contract code: https://gist.github.com/arkpar/38a87cb50165b7e683585eec71acb05a
    #[test]
    fn transaction_filter_deprecated() {
--- a/crates/ethcore/sync/src/chain/fork_filter.rs
+++ b/crates/ethcore/sync/src/chain/fork_filter.rs
@ -86,7 +86,7 @@ mod tests {
            || ethereum::new_foundation(&String::new()),
            vec![
                1_150_000, 1_920_000, 2_463_000, 2_675_000, 4_370_000, 7_280_000, 9_069_000,
-                9_200_000, 12_244_000, 12_965_000, 13_773_000,
+                9_200_000, 12_244_000, 12_965_000,
            ],
        )
    }
--- a/crates/ethcore/sync/src/chain/mod.rs
+++ b/crates/ethcore/sync/src/chain/mod.rs
@ -1704,14 +1704,6 @@ pub mod tests {
        assert!(!sync_status(SyncState::Idle).is_syncing(queue_info(0, 0)));
    }

-    pub fn dummy_sync(client: &dyn BlockChainClient) -> ChainSync {
-        ChainSync::new(
-            SyncConfig::default(),
-            client,
-            ForkFilterApi::new_dummy(client),
-        )
-    }
-
    pub fn dummy_sync_with_peer(
        peer_latest_hash: H256,
        client: &dyn BlockChainClient,
--- a/crates/ethcore/sync/src/chain/supplier.rs
+++ b/crates/ethcore/sync/src/chain/supplier.rs
@ -352,31 +352,26 @@ impl SyncSupplier {

    fn return_node_data(io: &dyn SyncIo, rlp: &Rlp, peer_id: PeerId) -> RlpResponseResult {
        let count = cmp::min(rlp.item_count().unwrap_or(0), MAX_NODE_DATA_TO_SEND);
-        trace!(target: "sync", "{} -> GetNodeData: {} entries", peer_id, count);
        if count == 0 {
            debug!(target: "sync", "Empty GetNodeData request, ignoring.");
            return Ok(None);
        }

+        let mut data = Bytes::new();
+
        let mut added = 0usize;
-        let mut data = Vec::new();
-        let mut total_bytes = 0;
        for i in 0..count {
-            if let Some(node_data) = io.chain().state_data(&rlp.val_at::<H256>(i)?) {
-                total_bytes += node_data.len();
-                // Check that the packet won't be oversized
-                if total_bytes > PAYLOAD_SOFT_LIMIT {
+            if let Some(ref mut node_data) = io.chain().state_data(&rlp.val_at::<H256>(i)?) {
+                data.append(node_data);
+                added += 1;
+                if data.len() > PAYLOAD_SOFT_LIMIT {
                    break;
                }
-                data.push(node_data);
-                added += 1;
            }
        }

        let mut rlp = RlpStream::new_list(added);
-        for d in data {
-            rlp.append(&d);
-        }
+        rlp.append_raw(&data, added);
        trace!(target: "sync", "{} -> GetNodeData: returned {} entries", peer_id, added);
        Ok(Some((NodeDataPacket, rlp)))
    }
@ -502,10 +497,7 @@ mod test {
    use super::{super::tests::*, *};
    use blocks::SyncHeader;
    use bytes::Bytes;
-    use ethcore::{
-        client::{BlockChainClient, EachBlockWith, TestBlockChainClient},
-        spec::Spec,
-    };
+    use ethcore::client::{BlockChainClient, EachBlockWith, TestBlockChainClient};
    use ethereum_types::H256;
    use parking_lot::RwLock;
    use rlp::{Rlp, RlpStream};
@ -770,7 +762,7 @@ mod test {

    #[test]
    fn return_nodes() {
-        let mut client = TestBlockChainClient::new_with_spec(Spec::new_test_round());
+        let mut client = TestBlockChainClient::new();
        let queue = RwLock::new(VecDeque::new());
        let sync = dummy_sync_with_peer(H256::zero(), &client);
        let ss = TestSnapshotService::new();
@ -814,48 +806,4 @@ mod test {
        );
        assert_eq!(1, io.packets.len());
    }
-
-    #[test]
-    fn dispatch_get_node_data_request() {
-        let mut client = TestBlockChainClient::new_with_spec(Spec::new_test_round());
-        let queue = RwLock::new(VecDeque::new());
-        let sync = dummy_sync(&client);
-        let ss = TestSnapshotService::new();
-        let mut io = TestIo::new(&mut client, &ss, &queue, None);
-
-        let mut node_list = RlpStream::new_list(3);
-        node_list.append(
-            &H256::from_str("000000000000000000000000000000000000000000000000000000000000000a")
-                .unwrap(),
-        );
-        node_list.append(
-            &H256::from_str("000000000000000000000000000000000000000000000000000000000000000b")
-                .unwrap(),
-        );
-        node_list.append(
-            &H256::from_str("000000000000000000000000000000000000000000000000000000000000000c")
-                .unwrap(),
-        );
-
-        let node_request = node_list;
-        let node_request = prepend_request_id(node_request, Some(0x0b3a73ce2ff2));
-
-        io.sender = Some(2usize);
-
-        // it returns rlp ONLY for hashes ending with "a" and "c"
-        SyncSupplier::dispatch_packet(
-            &RwLock::new(sync),
-            &mut io,
-            0usize,
-            GetNodeDataPacket.id(),
-            &node_request.out(),
-        );
-        assert_eq!(1, io.packets.len());
-        assert_eq!(
-            &io.packets[0].data,
-            &vec![
-                0xcd, 0x86, 0x0b, 0x3a, 0x73, 0xce, 0x2f, 0xf2, 0xc5, 0x82, 0xaa, 0xaa, 0x81, 0xcc
-            ]
-        );
-    }
 }
--- a/crates/ethcore/types/src/transaction/error.rs
+++ b/crates/ethcore/types/src/transaction/error.rs
@ -93,8 +93,6 @@ pub enum Error {
    InvalidRlp(String),
    /// Transaciton is still not enabled.
    TransactionTypeNotEnabled,
-    /// Transaction sender is not an EOA (see EIP-3607)
-    SenderIsNotEOA,
 }

 impl From<crypto::publickey::Error> for Error {
@ -156,7 +154,6 @@ impl fmt::Display for Error {
            TransactionTypeNotEnabled => {
                format!("Transaction type is not enabled for current block")
            }
-            SenderIsNotEOA => "Transaction sender is not an EOA (see EIP-3607)".into(),
        };

        f.write_fmt(format_args!("Transaction error ({})", msg))
--- a/crates/ethcore/types/src/transaction/transaction.rs
+++ b/crates/ethcore/types/src/transaction/transaction.rs
@ -634,16 +634,10 @@ impl TypedTransaction {

    pub fn effective_gas_price(&self, block_base_fee: Option<U256>) -> U256 {
        match self {
-            Self::EIP1559Transaction(tx) => {
-                let (v2, overflow) = tx
-                    .max_priority_fee_per_gas
-                    .overflowing_add(block_base_fee.unwrap_or_default());
-                if overflow {
-                    self.tx().gas_price
-                } else {
-                    min(self.tx().gas_price, v2)
-                }
-            }
+            Self::EIP1559Transaction(tx) => min(
+                self.tx().gas_price,
+                tx.max_priority_fee_per_gas + block_base_fee.unwrap_or_default(),
+            ),
            Self::AccessList(_) => self.tx().gas_price,
            Self::Legacy(_) => self.tx().gas_price,
        }
@ -657,22 +651,6 @@ impl TypedTransaction {
        }
    }

-    pub fn effective_priority_fee(&self, block_base_fee: Option<U256>) -> U256 {
-        self.effective_gas_price(block_base_fee)
-            .checked_sub(block_base_fee.unwrap_or_default())
-            .unwrap_or_default()
-    }
-
-    pub fn has_zero_gas_price(&self) -> bool {
-        match self {
-            Self::EIP1559Transaction(tx) => {
-                tx.tx().gas_price.is_zero() && tx.max_priority_fee_per_gas.is_zero()
-            }
-            Self::AccessList(tx) => tx.tx().gas_price.is_zero(),
-            Self::Legacy(tx) => tx.gas_price.is_zero(),
-        }
-    }
-
    fn decode_new(tx: &[u8]) -> Result<UnverifiedTransaction, DecoderError> {
        if tx.is_empty() {
            // at least one byte needs to be present
@ -1343,41 +1321,4 @@ mod tests {
        test_vector("f867088504a817c8088302e2489435353535353535353535353535353535353535358202008025a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c12a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c10", "9bddad43f934d313c2b79ca28a432dd2b7281029");
        test_vector("f867098504a817c809830334509435353535353535353535353535353535353535358202d98025a052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afba052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afb", "3c24d7329e92f84f08556ceb6df1cdb0104ca49f");
    }
-
-    #[test]
-    fn should_not_panic_on_effective_gas_price_overflow() {
-        use self::publickey::{Generator, Random};
-        let key = Random.generate();
-        let gas_price /* 2**256 - 1 */ = U256::from(340282366920938463463374607431768211455u128)
-            * U256::from(340282366920938463463374607431768211455u128)
-            + U256::from(340282366920938463463374607431768211455u128)
-            + U256::from(340282366920938463463374607431768211455u128);
-        let t = TypedTransaction::EIP1559Transaction(EIP1559TransactionTx {
-            transaction: AccessListTx::new(
-                Transaction {
-                    action: Action::Create,
-                    nonce: U256::from(42),
-                    gas_price,
-                    gas: U256::from(50_000),
-                    value: U256::from(1),
-                    data: b"Hello!".to_vec(),
-                },
-                vec![
-                    (
-                        H160::from_low_u64_be(10),
-                        vec![H256::from_low_u64_be(102), H256::from_low_u64_be(103)],
-                    ),
-                    (H160::from_low_u64_be(400), vec![]),
-                ],
-            ),
-            max_priority_fee_per_gas: gas_price,
-        })
-        .sign(&key.secret(), Some(69));
-
-        let result = t.transaction.effective_gas_price(Some(124.into()));
-        assert_eq!(
-            gas_price, result,
-            "Invalid effective gas price, when max_priority_fee_per_gas is U256::max"
-        );
-    }
 }
--- a/crates/ethcore/types/src/transaction/transaction_id.rs
+++ b/crates/ethcore/types/src/transaction/transaction_id.rs
@ -51,7 +51,6 @@ impl TypedTxId {
    pub fn from_U64_option_id(n: Option<U64>) -> Option<Self> {
        match n.map(|t| t.as_u64()) {
            None => Some(Self::Legacy),
-            Some(0x00) => Some(Self::Legacy),
            Some(0x01) => Some(Self::AccessList),
            Some(0x02) => Some(Self::EIP1559Transaction),
            _ => None,
@ -60,7 +59,10 @@ impl TypedTxId {

    #[allow(non_snake_case)]
    pub fn to_U64_option_id(self) -> Option<U64> {
-        Some(U64::from(self as u8))
+        match self {
+            Self::Legacy => None,
+            _ => Some(U64::from(self as u8)),
+        }
    }
 }

@ -91,7 +93,7 @@ mod tests {

    #[test]
    fn typed_tx_id_to_u64_option_id() {
-        assert_eq!(Some(U64::from(0x00)), TypedTxId::Legacy.to_U64_option_id());
+        assert_eq!(None, TypedTxId::Legacy.to_U64_option_id());
        assert_eq!(
            Some(U64::from(0x01)),
            TypedTxId::AccessList.to_U64_option_id()
--- a/crates/ethcore/types/src/views/typed_transaction.rs
+++ b/crates/ethcore/types/src/views/typed_transaction.rs
@ -137,29 +137,6 @@ impl<'a> TypedTransactionView<'a> {
        }
    }

-    /// Get the actual priority gas price paid to the miner
-    pub fn effective_priority_gas_price(&self, block_base_fee: Option<U256>) -> U256 {
-        match self.transaction_type {
-            TypedTxId::Legacy => self
-                .gas_price()
-                .saturating_sub(block_base_fee.unwrap_or_default()),
-            TypedTxId::AccessList => self
-                .gas_price()
-                .saturating_sub(block_base_fee.unwrap_or_default()),
-            TypedTxId::EIP1559Transaction => {
-                let max_priority_fee_per_gas: U256 =
-                    view!(Self, &self.rlp.rlp.data().unwrap()[1..])
-                        .rlp
-                        .val_at(2);
-                min(
-                    max_priority_fee_per_gas,
-                    self.gas_price()
-                        .saturating_sub(block_base_fee.unwrap_or_default()),
-                )
-            }
-        }
-    }
-
    /// Get the gas field of the transaction.
    pub fn gas(&self) -> U256 {
        match self.transaction_type {
@ -283,7 +260,6 @@ mod tests {
        assert_eq!(view.nonce(), 0.into());
        assert_eq!(view.gas_price(), 1.into());
        assert_eq!(view.effective_gas_price(None), 1.into());
-        assert_eq!(view.effective_priority_gas_price(None), 1.into());
        assert_eq!(view.gas(), 0x61a8.into());
        assert_eq!(view.value(), 0xa.into());
        assert_eq!(
@ -309,7 +285,6 @@ mod tests {
        let view = view!(TypedTransactionView, &rlp);
        assert_eq!(view.nonce(), 0x1.into());
        assert_eq!(view.gas_price(), 0xa.into());
-        assert_eq!(view.effective_priority_gas_price(None), 0xa.into());
        assert_eq!(view.gas(), 0x1e241.into());
        assert_eq!(view.value(), 0x0.into());
        assert_eq!(view.data(), "".from_hex().unwrap());
@ -331,10 +306,6 @@ mod tests {
        assert_eq!(view.nonce(), 0x1.into());
        assert_eq!(view.gas_price(), 0xa.into());
        assert_eq!(view.effective_gas_price(Some(0x07.into())), 0x08.into());
-        assert_eq!(
-            view.effective_priority_gas_price(Some(0x07.into())),
-            0x01.into()
-        );
        assert_eq!(view.gas(), 0x1e241.into());
        assert_eq!(view.value(), 0x0.into());
        assert_eq!(view.data(), "".from_hex().unwrap());
--- a/crates/ethjson/src/spec/params.rs
+++ b/crates/ethjson/src/spec/params.rs
@ -120,8 +120,6 @@ pub struct Params {
    /// See `CommonParams` docs.
    pub eip3541_transition: Option<Uint>,
    /// See `CommonParams` docs.
-    pub eip3607_transition: Option<Uint>,
-    /// See `CommonParams` docs.
    pub dust_protection_transition: Option<Uint>,
    /// See `CommonParams` docs.
    pub nonce_cap_increment: Option<Uint>,
@ -160,16 +158,6 @@ pub struct Params {
    pub eip1559_elasticity_multiplier: Option<Uint>,
    /// Default value for the block base fee
    pub eip1559_base_fee_initial_value: Option<Uint>,
-    /// Min value for the block base fee.
-    pub eip1559_base_fee_min_value: Option<Uint>,
-    /// Block at which the min value for the base fee starts to be used.
-    pub eip1559_base_fee_min_value_transition: Option<Uint>,
-    /// Address where EIP-1559 burnt fee will be accrued to.
-    pub eip1559_fee_collector: Option<Address>,
-    /// Block at which the fee collector should start being used.
-    pub eip1559_fee_collector_transition: Option<Uint>,
-    /// Block at which zero gas price transactions start being checked with Certifier contract.
-    pub validate_service_transactions_transition: Option<Uint>,
 }

 #[cfg(test)]
--- a/crates/rpc/src/v1/helpers/dispatch/mod.rs
+++ b/crates/rpc/src/v1/helpers/dispatch/mod.rs
@ -91,10 +91,7 @@ use ethcore::{client::BlockChainClient, miner::MinerService};
 use ethereum_types::{Address, H256, H520, U256};
 use ethkey::Password;
 use hash::keccak;
-use types::{
-    transaction::{PendingTransaction, SignedTransaction},
-    BlockNumber,
-};
+use types::transaction::{PendingTransaction, SignedTransaction};

 use jsonrpc_core::{
    futures::{future, Future, IntoFuture},
@ -400,24 +397,6 @@ where
        .unwrap_or_else(|| miner.sensible_gas_price())
 }

-/// Extract the default priority gas price from a client and miner.
-pub fn default_max_priority_fee_per_gas<C, M>(
-    client: &C,
-    miner: &M,
-    percentile: usize,
-    eip1559_transition: BlockNumber,
-) -> U256
-where
-    C: BlockChainClient,
-    M: MinerService,
-{
-    client
-        .priority_gas_price_corpus(100, eip1559_transition)
-        .percentile(percentile)
-        .cloned()
-        .unwrap_or_else(|| miner.sensible_max_priority_fee())
-}
-
 /// Convert RPC confirmation payload to signer confirmation payload.
 /// May need to resolve in the future to fetch things like gas price.
 pub fn from_rpc<D>(
--- a/crates/rpc/src/v1/helpers/errors.rs
+++ b/crates/rpc/src/v1/helpers/errors.rs
@ -273,10 +273,6 @@ where
    }
 }

-pub fn eip1559_not_activated() -> Error {
-    unsupported("EIP-1559 is not activated", None)
-}
-
 pub fn not_enough_data() -> Error {
    Error {
        code: ErrorCode::ServerError(codes::UNSUPPORTED_REQUEST),
@ -408,7 +404,6 @@ pub fn transaction_message(error: &TransactionError) -> String {
 		TooBig => "Transaction is too big, see chain specification for the limit.".into(),
        InvalidRlp(ref descr) => format!("Invalid RLP data: {}", descr),
        TransactionTypeNotEnabled => format!("Transaction type is not enabled for current block"),
-        SenderIsNotEOA => "Transaction sender is not an EOA (see EIP-3607)".into(),
 	}
 }

--- a/crates/rpc/src/v1/impls/eth.rs
+++ b/crates/rpc/src/v1/impls/eth.rs
@ -52,7 +52,7 @@ use v1::{
        self,
        block_import::is_major_importing,
        deprecated::{self, DeprecationNotice},
-        dispatch::{default_gas_price, default_max_priority_fee_per_gas, FullDispatcher},
+        dispatch::{default_gas_price, FullDispatcher},
        errors, fake_sign, limit_logs,
    },
    metadata::Metadata,
@ -696,22 +696,6 @@ where
        )))
    }

-    fn max_priority_fee_per_gas(&self) -> BoxFuture<U256> {
-        let latest_block = self.client.chain_info().best_block_number;
-        let eip1559_transition = self.client.engine().params().eip1559_transition;
-
-        if latest_block + 1 >= eip1559_transition {
-            Box::new(future::ok(default_max_priority_fee_per_gas(
-                &*self.client,
-                &*self.miner,
-                self.options.gas_price_percentile,
-                eip1559_transition,
-            )))
-        } else {
-            Box::new(future::done(Err(errors::eip1559_not_activated())))
-        }
-    }
-
    fn fee_history(
        &self,
        mut block_count: U256,
@ -821,11 +805,8 @@ where

                                                gas_and_reward.push((
                                                    gas_used,
-                                                    txs[i]
-                                                        .effective_gas_price(base_fee)
-                                                        .saturating_sub(
-                                                            base_fee.unwrap_or_default(),
-                                                        ),
+                                                    txs[i].effective_gas_price(base_fee)
+                                                        - base_fee.unwrap_or_default(),
                                                ));
                                            }
                                        }
--- a/crates/rpc/src/v1/tests/eth.rs
+++ b/crates/rpc/src/v1/tests/eth.rs
@ -19,7 +19,7 @@ use std::{env, sync::Arc};

 use accounts::AccountProvider;
 use ethcore::{
-    client::{BlockChainClient, ChainInfo, Client, ClientConfig, EvmTestClient, ImportBlock},
+    client::{BlockChainClient, ChainInfo, Client, ClientConfig, ImportBlock},
    ethereum,
    miner::Miner,
    spec::{Genesis, Spec},
@ -67,7 +67,7 @@ fn snapshot_service() -> Arc<TestSnapshotService> {

 fn make_spec(chain: &BlockChain) -> Spec {
    let genesis = Genesis::from(chain.genesis());
-    let mut spec = EvmTestClient::spec_from_json(&chain.network).unwrap();
+    let mut spec = ethereum::new_frontier_test();
    let state = chain.pre_state.clone().into();
    spec.set_genesis_state(state)
        .expect("unable to set genesis state");
@ -281,26 +281,6 @@ fn eth_get_block() {
    );
 }

-#[test]
-fn eth_get_max_priority_fee_per_gas() {
-    let chain = extract_non_legacy_chain!(
-        "BlockchainTests/ValidBlocks/bcEIP1559/transType",
-        ForkSpec::London
-    );
-    let tester = EthTester::from_chain(&chain);
-    let request = r#"{"method":"eth_maxPriorityFeePerGas","params":[],"id":1,"jsonrpc":"2.0"}"#;
-
-    // We are expecting for 50-th percentile of the previous 100 blocks transactions priority fees.
-    //
-    // Sorted priority fees: 0x64 0x64 0x64 0x7d 0x7d 0xea 0x149.
-    // Currently, the way 50-th percentile is calculated, the 3rd fee would be the result.
-    let response = r#"{"jsonrpc":"2.0","result":"0x64","id":1}"#;
-    assert_eq!(
-        tester.handler.handle_request_sync(request).unwrap(),
-        response
-    )
-}
-
 #[test]
 fn eth_get_block_by_hash() {
    let chain = extract_chain!("BlockchainTests/ValidBlocks/bcGasPricerTest/RPC_API_Test");
--- a/crates/rpc/src/v1/tests/helpers/miner_service.rs
+++ b/crates/rpc/src/v1/tests/helpers/miner_service.rs
@ -335,7 +335,6 @@ impl MinerService for TestMinerService {
                tx_gas_limit: 5_000_000.into(),
                no_early_reject: false,
                block_base_fee: None,
-                allow_non_eoa_sender: false,
            },
            status: txpool::LightStatus {
                mem_usage: 1_000,
@ -360,10 +359,6 @@ impl MinerService for TestMinerService {
        20_000_000_000u64.into()
    }

-    fn sensible_max_priority_fee(&self) -> U256 {
-        2_000_000_000u64.into()
-    }
-
    fn sensible_gas_limit(&self) -> U256 {
        0x5208.into()
    }
--- a/crates/rpc/src/v1/tests/mocked/eth.rs
+++ b/crates/rpc/src/v1/tests/mocked/eth.rs
@ -23,7 +23,7 @@ use std::{

 use accounts::AccountProvider;
 use ethcore::{
-    client::{BlockChainClient, EachBlockWith, EvmTestClient, Executed, TestBlockChainClient},
+    client::{BlockChainClient, EachBlockWith, Executed, TestBlockChainClient},
    miner::{self, MinerService},
 };
 use ethereum_types::{Address, Bloom, H160, H256, U256};
@ -51,12 +51,6 @@ fn blockchain_client() -> Arc<TestBlockChainClient> {
    Arc::new(client)
 }

-fn eip1559_blockchain_client() -> Arc<TestBlockChainClient> {
-    let spec = EvmTestClient::spec_from_json(&ethjson::spec::ForkSpec::London).unwrap();
-    let client = TestBlockChainClient::new_with_spec(spec);
-    Arc::new(client)
-}
-
 fn accounts_provider() -> Arc<AccountProvider> {
    Arc::new(AccountProvider::transient_provider())
 }
@ -95,25 +89,8 @@ impl Default for EthTester {

 impl EthTester {
    pub fn new_with_options(options: EthClientOptions) -> Self {
-        let client = blockchain_client();
-        EthTester::new_with_client_and_options(client, options)
-    }
-
-    fn new_eip1559_with_options(options: EthClientOptions) -> Self {
-        let client = eip1559_blockchain_client();
-        EthTester::new_with_client_and_options(client, options)
-    }
-
-    pub fn add_blocks(&self, count: usize, with: EachBlockWith) {
-        self.client.add_blocks(count, with);
-        self.sync.increase_imported_block_number(count as u64);
-    }
-
-    fn new_with_client_and_options(
-        client: Arc<TestBlockChainClient>,
-        options: EthClientOptions,
-    ) -> Self {
        let runtime = Runtime::with_thread_count(1);
+        let client = blockchain_client();
        let sync = sync_provider();
        let ap = accounts_provider();
        let ap2 = ap.clone();
@ -149,6 +126,11 @@ impl EthTester {
            hashrates,
        }
    }
+
+    pub fn add_blocks(&self, count: usize, with: EachBlockWith) {
+        self.client.add_blocks(count, with);
+        self.sync.increase_imported_block_number(count as u64);
+    }
 }

 #[test]
@ -555,33 +537,6 @@ fn rpc_eth_gas_price() {
    );
 }

-#[test]
-fn rpc_eth_get_max_priority_fee_per_gas() {
-    let tester = EthTester::new_eip1559_with_options(Default::default());
-
-    let request = r#"{"method":"eth_maxPriorityFeePerGas","params":[],"id":1,"jsonrpc":"2.0"}"#;
-    let response = r#"{"jsonrpc":"2.0","result":"0x77359400","id":1}"#; // 2 GWei
-
-    assert_eq!(
-        tester.io.handle_request_sync(request),
-        Some(response.to_owned())
-    );
-}
-
-#[test]
-fn rpc_eth_get_max_priority_fee_per_gas_error() {
-    let tester = EthTester::default();
-
-    let request = r#"{"method":"eth_maxPriorityFeePerGas","params":[],"id":1,"jsonrpc":"2.0"}"#;
-    let response =
-        r#"{"jsonrpc":"2.0","error":{"code":-32000,"message":"EIP-1559 is not activated"},"id":1}"#;
-
-    assert_eq!(
-        tester.io.handle_request_sync(request),
-        Some(response.to_owned())
-    );
-}
-
 #[test]
 fn rpc_eth_accounts() {
    let tester = EthTester::default();
@ -765,7 +720,7 @@ fn rpc_eth_pending_transaction_by_hash() {
            .insert(H256::zero(), tx);
    }

-    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"chainId":null,"condition":null,"creates":null,"from":"0x0f65fe9276bc9a24ae7083ae28e2660ef72df99e","gas":"0x5208","gasPrice":"0x1","hash":"0x41df922fd0d4766fcc02e161f8295ec28522f329ae487f14d811e4b64c8d6e31","input":"0x","nonce":"0x0","publicKey":"0x7ae46da747962c2ee46825839c1ef9298e3bd2e70ca2938495c3693a485ec3eaa8f196327881090ff64cf4fbb0a48485d4f83098e189ed3b7a87d5941b59f789","r":"0x48b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353","raw":"0xf85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","s":"0xefffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","standardV":"0x0","to":"0x095e7baea6a6c7c4c2dfeb977efac326af552d87","transactionIndex":null,"type":"0x0","v":"0x1b","value":"0xa"},"id":1}"#;
+    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"chainId":null,"condition":null,"creates":null,"from":"0x0f65fe9276bc9a24ae7083ae28e2660ef72df99e","gas":"0x5208","gasPrice":"0x1","hash":"0x41df922fd0d4766fcc02e161f8295ec28522f329ae487f14d811e4b64c8d6e31","input":"0x","nonce":"0x0","publicKey":"0x7ae46da747962c2ee46825839c1ef9298e3bd2e70ca2938495c3693a485ec3eaa8f196327881090ff64cf4fbb0a48485d4f83098e189ed3b7a87d5941b59f789","r":"0x48b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353","raw":"0xf85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","s":"0xefffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804","standardV":"0x0","to":"0x095e7baea6a6c7c4c2dfeb977efac326af552d87","transactionIndex":null,"v":"0x1b","value":"0xa"},"id":1}"#;
    let request = r#"{
 		"jsonrpc": "2.0",
 		"method": "eth_getTransactionByHash",
@ -1245,7 +1200,7 @@ fn rpc_eth_transaction_receipt() {
 		"params": ["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],
 		"id": 1
 	}"#;
-    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":"0xed76641c68a1c641aee09a94b3b471f4dc0316efe5ac19cf488e2674cf8d05b5","blockNumber":"0x4510c","contractAddress":null,"cumulativeGasUsed":"0x20","effectiveGasPrice":"0x0","from":"0xb60e8dd61c5d32be8058bb8eb970870f07233155","gasUsed":"0x10","logs":[{"address":"0x33990122638b9132ca29c723bdf037f1a891a70c","blockHash":"0xed76641c68a1c641aee09a94b3b471f4dc0316efe5ac19cf488e2674cf8d05b5","blockNumber":"0x4510c","data":"0x","logIndex":"0x1","removed":false,"topics":["0xa6697e974e6a320f454390be03f74955e8978f1a6971ea6730542e37b66179bc","0x4861736852656700000000000000000000000000000000000000000000000000"],"transactionHash":"0x0000000000000000000000000000000000000000000000000000000000000000","transactionIndex":"0x0","transactionLogIndex":"0x0","type":"mined"}],"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","root":"0x0000000000000000000000000000000000000000000000000000000000000000","to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","transactionHash":"0x0000000000000000000000000000000000000000000000000000000000000000","transactionIndex":"0x0","type":"0x0"},"id":1}"#;
+    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":"0xed76641c68a1c641aee09a94b3b471f4dc0316efe5ac19cf488e2674cf8d05b5","blockNumber":"0x4510c","contractAddress":null,"cumulativeGasUsed":"0x20","effectiveGasPrice":"0x0","from":"0xb60e8dd61c5d32be8058bb8eb970870f07233155","gasUsed":"0x10","logs":[{"address":"0x33990122638b9132ca29c723bdf037f1a891a70c","blockHash":"0xed76641c68a1c641aee09a94b3b471f4dc0316efe5ac19cf488e2674cf8d05b5","blockNumber":"0x4510c","data":"0x","logIndex":"0x1","removed":false,"topics":["0xa6697e974e6a320f454390be03f74955e8978f1a6971ea6730542e37b66179bc","0x4861736852656700000000000000000000000000000000000000000000000000"],"transactionHash":"0x0000000000000000000000000000000000000000000000000000000000000000","transactionIndex":"0x0","transactionLogIndex":"0x0","type":"mined"}],"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","root":"0x0000000000000000000000000000000000000000000000000000000000000000","to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","transactionHash":"0x0000000000000000000000000000000000000000000000000000000000000000","transactionIndex":"0x0"},"id":1}"#;

    assert_eq!(
        tester.io.handle_request_sync(request),
@ -1300,7 +1255,7 @@ fn rpc_eth_pending_receipt() {
 		"params": ["0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238"],
 		"id": 1
 	}"#;
-    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"contractAddress":null,"cumulativeGasUsed":"0x20","effectiveGasPrice":"0x0","from":"0xb60e8dd61c5d32be8058bb8eb970870f07233155","gasUsed":"0x10","logs":[],"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","transactionHash":"0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238","transactionIndex":"0x0","type":"0x0"},"id":1}"#;
+    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"contractAddress":null,"cumulativeGasUsed":"0x20","effectiveGasPrice":"0x0","from":"0xb60e8dd61c5d32be8058bb8eb970870f07233155","gasUsed":"0x10","logs":[],"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","transactionHash":"0xb903239f8543d04b5dc1ba6579132b143087c68db1b2168786408fcbce568238","transactionIndex":"0x0"},"id":1}"#;
    assert_eq!(
        tester.io.handle_request_sync(request),
        Some(response.to_owned())
--- a/crates/rpc/src/v1/tests/mocked/parity.rs
+++ b/crates/rpc/src/v1/tests/mocked/parity.rs
@ -572,7 +572,7 @@ fn rpc_parity_block_receipts() {
 		"params": [],
 		"id": 1
 	}"#;
-    let response = r#"{"jsonrpc":"2.0","result":[{"blockHash":"0x0000000000000000000000000000000000000000000000000000000000000003","blockNumber":"0x0","contractAddress":null,"cumulativeGasUsed":"0x5208","effectiveGasPrice":"0x0","from":"0x0000000000000000000000000000000000000009","gasUsed":"0x5208","logs":[],"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001","to":null,"transactionHash":"0x0000000000000000000000000000000000000000000000000000000000000001","transactionIndex":"0x0","type":"0x0"}],"id":1}"#;
+    let response = r#"{"jsonrpc":"2.0","result":[{"blockHash":"0x0000000000000000000000000000000000000000000000000000000000000003","blockNumber":"0x0","contractAddress":null,"cumulativeGasUsed":"0x5208","effectiveGasPrice":"0x0","from":"0x0000000000000000000000000000000000000009","gasUsed":"0x5208","logs":[],"logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001","to":null,"transactionHash":"0x0000000000000000000000000000000000000000000000000000000000000001","transactionIndex":"0x0"}],"id":1}"#;

    assert_eq!(io.handle_request_sync(request), Some(response.to_owned()));
 }
--- a/crates/rpc/src/v1/tests/mocked/parity_set.rs
+++ b/crates/rpc/src/v1/tests/mocked/parity_set.rs
@ -202,7 +202,7 @@ fn rpc_parity_remove_transaction() {
        .to_owned()
        + &format!("0x{:x}", hash)
        + r#""], "id": 1}"#;
-    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"chainId":null,"condition":null,"creates":null,"from":"0x0000000000000000000000000000000000000002","gas":"0x76c0","gasPrice":"0x9184e72a000","hash":"0x49569012bc8523519642c337fded3f20ba987beab31e14c67223b3d31359956f","input":"0x","nonce":"0x1","publicKey":null,"r":"0x1","raw":"0xe9018609184e72a0008276c0940000000000000000000000000000000000000005849184e72a801f0101","s":"0x1","standardV":"0x4","to":"0x0000000000000000000000000000000000000005","transactionIndex":null,"type":"0x0","v":"0x1f","value":"0x9184e72a"},"id":1}"#;
+    let response = r#"{"jsonrpc":"2.0","result":{"blockHash":null,"blockNumber":null,"chainId":null,"condition":null,"creates":null,"from":"0x0000000000000000000000000000000000000002","gas":"0x76c0","gasPrice":"0x9184e72a000","hash":"0x49569012bc8523519642c337fded3f20ba987beab31e14c67223b3d31359956f","input":"0x","nonce":"0x1","publicKey":null,"r":"0x1","raw":"0xe9018609184e72a0008276c0940000000000000000000000000000000000000005849184e72a801f0101","s":"0x1","standardV":"0x4","to":"0x0000000000000000000000000000000000000005","transactionIndex":null,"v":"0x1f","value":"0x9184e72a"},"id":1}"#;

    miner.pending_transactions.lock().insert(hash, signed);
    assert_eq!(io.handle_request_sync(&request), Some(response.to_owned()));
--- a/crates/rpc/src/v1/tests/mocked/signer.rs
+++ b/crates/rpc/src/v1/tests/mocked/signer.rs
@ -656,7 +656,6 @@ fn should_confirm_sign_transaction_with_rlp() {
        + &format!("\"s\":\"0x{:x}\",", U256::from(signature.s()))
        + &format!("\"standardV\":\"0x{:x}\",", U256::from(t.standard_v()))
        + r#""to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","transactionIndex":null,"#
-        + r#""type":"0x0","#
        + &format!("\"v\":\"0x{:x}\",", U256::from(t.v()))
        + r#""value":"0x1""#
        + r#"}},"id":1}"#;
--- a/crates/rpc/src/v1/tests/mocked/signing.rs
+++ b/crates/rpc/src/v1/tests/mocked/signing.rs
@ -427,7 +427,6 @@ fn should_add_sign_transaction_to_the_queue() {
        + &format!("\"s\":\"0x{:x}\",", U256::from(signature.s()))
        + &format!("\"standardV\":\"0x{:x}\",", U256::from(t.standard_v()))
        + r#""to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","transactionIndex":null,"#
-        + r#""type":"0x0","#
        + &format!("\"v\":\"0x{:x}\",", U256::from(t.v()))
        + r#""value":"0x9184e72a""#
        + r#"}},"id":1}"#;
--- a/crates/rpc/src/v1/tests/mocked/signing_unsafe.rs
+++ b/crates/rpc/src/v1/tests/mocked/signing_unsafe.rs
@ -227,7 +227,6 @@ fn rpc_eth_sign_transaction() {
        + &format!("\"s\":\"0x{:x}\",", U256::from(signature.s()))
        + &format!("\"standardV\":\"0x{:x}\",", U256::from(t.standard_v()))
        + r#""to":"0xd46e8dd67c5d32be8058bb8eb970870f07244567","transactionIndex":null,"#
-        + r#""type":"0x0","#
        + &format!("\"v\":\"0x{:x}\",", U256::from(t.v()))
        + r#""value":"0x9184e72a""#
        + r#"}},"id":1}"#;
--- a/crates/rpc/src/v1/tests/mod.rs
+++ b/crates/rpc/src/v1/tests/mod.rs
@ -51,23 +51,6 @@ macro_rules! register_test {
 	};
 }

-macro_rules! extract_non_legacy_chain {
-    ($file: expr, $network: expr) => {{
-        const RAW_DATA: &'static [u8] = include_bytes!(concat!(
-            "../../../../ethcore/res/json_tests/",
-            $file,
-            ".json"
-        ));
-        ::ethjson::blockchain::Test::load(RAW_DATA)
-            .unwrap()
-            .into_iter()
-            .filter(|&(_, ref t)| t.network == $network)
-            .next()
-            .unwrap()
-            .1
-    }};
-}
-
 #[cfg(test)]
 mod eth;
 #[cfg(test)]
--- a/crates/rpc/src/v1/traits/eth.rs
+++ b/crates/rpc/src/v1/traits/eth.rs
@ -60,10 +60,6 @@ pub trait Eth {
    #[rpc(name = "eth_gasPrice")]
    fn gas_price(&self) -> BoxFuture<U256>;

-    /// Returns current max_priority_fee
-    #[rpc(name = "eth_maxPriorityFeePerGas")]
-    fn max_priority_fee_per_gas(&self) -> BoxFuture<U256>;
-
    /// Returns transaction fee history.
    #[rpc(name = "eth_feeHistory")]
    fn fee_history(&self, _: U256, _: BlockNumber, _: Option<Vec<f64>>)
--- a/crates/transaction-pool/src/lib.rs
+++ b/crates/transaction-pool/src/lib.rs
@ -113,7 +113,4 @@ pub trait VerifiedTransaction: fmt::Debug {

    /// Transaction sender
    fn sender(&self) -> &Self::Sender;
-
-    /// Does it have zero gas price?
-    fn has_zero_gas_price(&self) -> bool;
 }
--- a/crates/transaction-pool/src/pool.rs
+++ b/crates/transaction-pool/src/pool.rs
@ -650,9 +650,7 @@ where
                                match self.ready.is_ready(&tx) {
                                    Readiness::Ready => {
                                        //return transaction with score higher or equal to desired
-                                        if score >= &self.includable_boundary
-                                            || tx.transaction.has_zero_gas_price()
-                                        {
+                                        if score >= &self.includable_boundary {
                                            return Some(tx.transaction.clone());
                                        }
                                    }
@ -739,9 +737,7 @@ where

            if tx_state == Readiness::Ready {
                //return transaction with score higher or equal to desired
-                if best.score >= self.includable_boundary
-                    || best.transaction.transaction.has_zero_gas_price()
-                {
+                if best.score >= self.includable_boundary {
                    return Some(best.transaction.transaction);
                }
            }
--- a/crates/transaction-pool/src/tests/mod.rs
+++ b/crates/transaction-pool/src/tests/mod.rs
@ -50,9 +50,6 @@ impl VerifiedTransaction for Transaction {
    fn sender(&self) -> &Address {
        &self.sender
    }
-    fn has_zero_gas_price(&self) -> bool {
-        false
-    }
 }

 pub type SharedTransaction = Arc<Transaction>;
--- a/crates/util/version/Cargo.toml
+++ b/crates/util/version/Cargo.toml
@ -1,7 +1,7 @@
 [package]
 name = "parity-version"
 # NOTE: this value is used for OpenEthereum version string (via env CARGO_PKG_VERSION)
-version = "3.3.3"
+version = "3.3.0-rc.7"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"

--- a/crates/vm/builtin/src/lib.rs
+++ b/crates/vm/builtin/src/lib.rs
@ -203,11 +203,11 @@ impl ModexpPricer {
        let (base_len, exp_len) = (base_len_u256.low_u64(), exp_len_u256.low_u64());

        // read fist 32-byte word of the exponent.
-        let exp_low = if base_len.wrapping_add(96) >= input.len() as u64 {
+        let exp_low = if base_len + 96 >= input.len() as u64 {
            U256::zero()
        } else {
            buf.iter_mut().for_each(|b| *b = 0);
-            let mut reader = input[(base_len as usize).wrapping_add(96)..].chain(io::repeat(0));
+            let mut reader = input[(96 + base_len as usize)..].chain(io::repeat(0));
            let len = min(exp_len, 32) as usize;
            reader
                .read_exact(&mut buf[(32 - len)..])
@ -1728,33 +1728,6 @@ mod tests {
            native: EthereumBuiltin::from_str("modexp").unwrap(),
        };

-        // test for potential base len overflow
-        {
-            let input = hex!(
-                "
-                00000000000000000000000000000000ffffffffffffffffffffffffffffffff
-                0000000000000000000000000000000000000000000000000000000000000001
-                0000000000000000000000000000000000000000000000000000000000000001
-                ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
-                03
-                ff"
-            );
-            let expected_cost = U256::max_value();
-            assert_eq!(f.cost(&input[..], 0), expected_cost);
-        }
-
-        // another test for potential base len overflow
-        {
-            let input = hex!(
-                "
-                00000000000000000000000000000000ffffffffffffffffffffffffffffffff
-                0000000000000000000000000000000000000000000000000000000000000020
-                0000000000000000000000000000000000000000000000000000000000000020"
-            );
-            let expected_cost = U256::max_value();
-            assert_eq!(f.cost(&input[..], 0), expected_cost);
-        }
-
        // test for potential gas cost multiplication overflow
        {
            let input = hex!("0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000003b27bafd00000000000000000000000000000000000000000000000000000000503c8ac3");
@ -1867,38 +1840,6 @@ mod tests {
        }
    }

-    #[test]
-    fn modexp2565() {
-        let pricer = Modexp2565Pricer {};
-
-        // test for potential base len overflow
-        {
-            let input = hex!(
-                "
-                00000000000000000000000000000000ffffffffffffffffffffffffffffffff
-                0000000000000000000000000000000000000000000000000000000000000001
-                0000000000000000000000000000000000000000000000000000000000000001
-                ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
-                03
-                ff"
-            );
-            let expected_cost = U256::max_value();
-            assert_eq!(pricer.cost(&input[..]), expected_cost);
-        }
-
-        // another test for potential base len overflow
-        {
-            let input = hex!(
-                "
-                00000000000000000000000000000000ffffffffffffffffffffffffffffffff
-                0000000000000000000000000000000000000000000000000000000000000020
-                0000000000000000000000000000000000000000000000000000000000000020"
-            );
-            let expected_cost = U256::max_value();
-            assert_eq!(pricer.cost(&input[..]), expected_cost);
-        }
-    }
-
    #[test]
    fn bn128_add() {
        let f = Builtin {