Parity-Ethereum 2.3.8-stable is a bugfix release that improves performance and stability. This patch release contains a critical bug fix where serving light clients previously led to client crashes. Upgrading is highly recommended.
- Fix underflow in pip, closes [#10419](https://github.com/paritytech/parity-ethereum/pull/10419) ([#10423](https://github.com/paritytech/parity-ethereum/pull/10423))
- Fix panic when logging directory does not exist, closes [#10420](https://github.com/paritytech/parity-ethereum/pull/10420) ([#10424](https://github.com/paritytech/parity-ethereum/pull/10424))
- Update hardcoded headers for Foundation, Ropsten, Kovan and Classic ([#10417](https://github.com/paritytech/parity-ethereum/pull/10417))
- Backports for Stable 2.3.5 ([#10414](https://github.com/paritytech/parity-ethereum/pull/10414))
- No-git for publish jobs, empty artifacts dir ([#10393](https://github.com/paritytech/parity-ethereum/pull/10393))
Parity-Ethereum 2.3.4-beta is a maintenance release that fixes snap and docker installations.
The full list of included changes:
- Beta: snap: release untagged versions from branches to the candidate ([#10357](https://github.com/paritytech/parity-ethereum/pull/10357)) ([#10373](https://github.com/paritytech/parity-ethereum/pull/10373))
- Snap: release untagged versions from branches to the candidate snap channel ([#10357](https://github.com/paritytech/parity-ethereum/pull/10357))
- Snap: add the removable-media plug ([#10377](https://github.com/paritytech/parity-ethereum/pull/10377))
- Exchanged old(azure) bootnodes with new(ovh) ones ([#10309](https://github.com/paritytech/parity-ethereum/pull/10309))
Parity-Ethereum 2.3.3-beta is a security-relevant release. A bug in the JSONRPC-deserialization module can cause crashes of all versions of Parity Ethereum nodes if an attacker is able to submit a specially-crafted RPC to certain publicly available endpoints.
- Additional error for invalid gas ([#10327](https://github.com/paritytech/parity-ethereum/pull/10327)) ([#10328](https://github.com/paritytech/parity-ethereum/pull/10328))
- Backports for Beta 2.3.3 ([#10333](https://github.com/paritytech/parity-ethereum/pull/10333))
Parity-Ethereum 2.3.2-stable is a security-relevant release. A bug in the JSONRPC-deserialization module can cause crashes of all versions of Parity Ethereum nodes if an attacker is able to submit a specially-crafted RPC to certain publicly available endpoints.
Parity-Ethereum 2.3.0-beta is a consensus-relevant security release that reverts Constantinople on the Ethereum network. Upgrading is mandatory for Ethereum, and strongly recommended for other networks.
- **Networking** - All networks: Ping nodes from discovery ([#10167](https://github.com/paritytech/parity-ethereum/pull/10167))
- **Wasm** - Kovan Network: Update pwasm-utils to 0.6.1 ([#10134](https://github.com/paritytech/parity-ethereum/pull/10134))
Other notable changes:
- Existing blocks in the database are now kept when restoring a Snapshot. ([#8643](https://github.com/paritytech/parity-ethereum/pull/8643))
- Block and transaction propagation is improved significantly. ([#9954](https://github.com/paritytech/parity-ethereum/pull/9954))
- The ERC-191 Signed Data Standard is now supported by `personal_sign191`. ([#9701](https://github.com/paritytech/parity-ethereum/pull/9701))
- Add support for ERC-191/712 `eth_signTypedData` as a standard for machine-verifiable and human-readable typed data signing with Ethereum keys. ([#9631](https://github.com/paritytech/parity-ethereum/pull/9631))
- Add support for ERC-1186 `eth_getProof` ([#9001](https://github.com/paritytech/parity-ethereum/pull/9001))
- Add experimental RPCs flag to enable ERC-191, ERC-712, and ERC-1186 APIs via `--jsonrpc-experimental` ([#9928](https://github.com/paritytech/parity-ethereum/pull/9928))
- Make `CALLCODE` to trace value to be the code address. ([#9881](https://github.com/paritytech/parity-ethereum/pull/9881))
Configuration changes:
- The EIP-98 transition is now disabled by default. If you previously had no `eip98transition` specified in your chain specification, you would enable this now manually on block `0x0`. ([#9955](https://github.com/paritytech/parity-ethereum/pull/9955))
- Also, unknown fields in chain specs are now rejected. ([#9972](https://github.com/paritytech/parity-ethereum/pull/9972))
- The Tendermint engine was removed from Parity Ethereum and is no longer available and maintained. ([#9980](https://github.com/paritytech/parity-ethereum/pull/9980))
- Ropsten testnet data and keys moved from `test/` to `ropsten/` subdir. To reuse your old keys and data either copy or symlink them to the new location. ([#10123](https://github.com/paritytech/parity-ethereum/pull/10123))
- If you have a chain with`empty_steps` already running, some blocks most likely contain non-strict entries (unordered or duplicated empty steps). In this release `strict_empty_steps_transition` is enabled by default at block `0x0` for any chain with `empty_steps`.
- If your network uses `empty_steps` you **must** (A) plan a hard fork and change `strict_empty_steps_transition` to the desired fork block and (B) update the clients of the whole network to 2.2.7-stable / 2.3.0-beta. If for some reason you don't want to do this please set`strict_empty_steps_transition` to `0xfffffffff` to disable it.
_Note:_ This release marks Parity 2.3 as _beta_. All versions of Parity 2.2 are now considered _stable_.
The full list of included changes:
- Backports for 2.3.0 beta ([#10164](https://github.com/paritytech/parity-ethereum/pull/10164))
- Snap: fix path in script ([#10157](https://github.com/paritytech/parity-ethereum/pull/10157))
- Make sure parent block is not in importing queue when importing ancient blocks ([#10138](https://github.com/paritytech/parity-ethereum/pull/10138))
- Use LenCachingMutex to optimize verification. ([#10117](https://github.com/paritytech/parity-ethereum/pull/10117))
- Pyethereum keystore support ([#9710](https://github.com/paritytech/parity-ethereum/pull/9710))
- Bump rocksdb-sys to 0.5.5 ([#10124](https://github.com/paritytech/parity-ethereum/pull/10124))
- Parity-clib: `async C bindings to RPC requests` + `subscribe/unsubscribe to websocket events` ([#9920](https://github.com/paritytech/parity-ethereum/pull/9920))
- Refactor (hardware wallet) : reduce the number of threads ([#9644](https://github.com/paritytech/parity-ethereum/pull/9644))
- Hf in POA Sokol (2019-01-04) ([#10077](https://github.com/paritytech/parity-ethereum/pull/10077))
- Follow-up to [#10105](https://github.com/paritytech/parity-ethereum/issues/10105) ([#10107](https://github.com/paritytech/parity-ethereum/pull/10107))
- Move EIP-712 crate back to parity-ethereum ([#10106](https://github.com/paritytech/parity-ethereum/pull/10106))
- Move a bunch of stuff around ([#10101](https://github.com/paritytech/parity-ethereum/pull/10101))
- Revert "Add --frozen when running cargo ([#10081](https://github.com/paritytech/parity-ethereum/pull/10081))" ([#10105](https://github.com/paritytech/parity-ethereum/pull/10105))
- Fix left over small grumbles on whitespaces ([#10084](https://github.com/paritytech/parity-ethereum/pull/10084))
- Add --frozen when running cargo ([#10081](https://github.com/paritytech/parity-ethereum/pull/10081))
- Fix pubsub new_blocks notifications to include all blocks ([#9987](https://github.com/paritytech/parity-ethereum/pull/9987))
- Update some dependencies for compilation with pc-windows-gnu ([#10082](https://github.com/paritytech/parity-ethereum/pull/10082))
- Fill transaction hash on ethGetLog of light client. ([#9938](https://github.com/paritytech/parity-ethereum/pull/9938))
- Update changelog update for 2.2.5-beta and 2.1.10-stable ([#10064](https://github.com/paritytech/parity-ethereum/pull/10064))
- Implement len caching for parking_lot RwLock ([#10032](https://github.com/paritytech/parity-ethereum/pull/10032))
- Update parking_lot to 0.7 ([#10050](https://github.com/paritytech/parity-ethereum/pull/10050))
- Light-fetch: Differentiate between out-of-gas/manual throw and use required gas from response on failure ([#9824](https://github.com/paritytech/parity-ethereum/pull/9824))