diff --git a/js/scripts/build-rpc-markdown.js b/js/scripts/build-rpc-markdown.js
index 2407cf208..7a78e1ce9 100644
--- a/js/scripts/build-rpc-markdown.js
+++ b/js/scripts/build-rpc-markdown.js
@@ -37,7 +37,11 @@ Object.keys(rustMethods).forEach((group) => {
   });
 });
 
-function printType (type) {
+function printType (type, obj) {
+  if (!type) {
+    throw new Error(`Invalid type in ${JSON.stringify(obj)}`);
+  }
+
   return type.print || `\`${type.name}\``;
 }
 
@@ -45,7 +49,7 @@ function formatDescription (obj, prefix = '', indent = '') {
   const optional = obj.optional ? '(optional) ' : '';
   const defaults = obj.default ? `(default: \`${obj.default}\`) ` : '';
 
-  return `${indent}${prefix}${printType(obj.type)} - ${optional}${defaults}${obj.desc}`;
+  return `${indent}${prefix}${printType(obj.type, obj)} - ${optional}${defaults}${obj.desc}`;
 }
 
 function formatType (obj) {
diff --git a/js/src/api/format/input.js b/js/src/api/format/input.js
index 3a9cfee06..0ccd10604 100644
--- a/js/src/api/format/input.js
+++ b/js/src/api/format/input.js
@@ -165,10 +165,6 @@ export function inOptions (_options = {}) {
         options[key] = inNumber16((new BigNumber(options[key])).round());
         break;
 
-      case 'minBlock':
-        options[key] = options[key] ? inNumber16(options[key]) : null;
-        break;
-
       case 'value':
       case 'nonce':
         options[key] = inNumber16(options[key]);
@@ -211,3 +207,36 @@ export function inTraceType (whatTrace) {
 
   return whatTrace;
 }
+
+function inDeriveType (derive) {
+  return derive && derive.type === 'hard' ? 'hard' : 'soft';
+}
+
+export function inDeriveHash (derive) {
+  const hash = derive && derive.hash ? derive.hash : derive;
+  const type = inDeriveType(derive);
+
+  return {
+    hash: inHex(hash),
+    type
+  };
+}
+
+export function inDeriveIndex (derive) {
+  if (!derive) {
+    return [];
+  }
+
+  if (!isArray(derive)) {
+    derive = [derive];
+  }
+
+  return derive.map(item => {
+    const index = inNumber10(item && item.index ? item.index : item);
+
+    return {
+      index,
+      type: inDeriveType(item)
+    };
+  });
+}
diff --git a/js/src/api/format/input.spec.js b/js/src/api/format/input.spec.js
index 4b82bd1ef..eb74b7bd6 100644
--- a/js/src/api/format/input.spec.js
+++ b/js/src/api/format/input.spec.js
@@ -16,7 +16,11 @@
 
 import BigNumber from 'bignumber.js';
 
-import { inAddress, inBlockNumber, inData, inFilter, inHex, inNumber10, inNumber16, inOptions, inTraceType } from './input';
+import {
+  inAddress, inBlockNumber, inData, inFilter, inHex,
+  inNumber10, inNumber16, inOptions, inTraceType,
+  inDeriveHash, inDeriveIndex
+} from './input';
 import { isAddress } from '../../../test/types';
 
 describe('api/format/input', () => {
@@ -215,7 +219,7 @@ describe('api/format/input', () => {
       expect(formatted.to).to.equal('');
     });
 
-    ['gas', 'gasPrice', 'value', 'minBlock', 'nonce'].forEach((input) => {
+    ['gas', 'gasPrice', 'value', 'nonce'].forEach((input) => {
       it(`formats ${input} number as hexnumber`, () => {
         const block = {};
 
@@ -226,8 +230,8 @@ describe('api/format/input', () => {
       });
     });
 
-    it('passes minBlock as null when specified as such', () => {
-      expect(inOptions({ minBlock: null })).to.deep.equal({ minBlock: null });
+    it('passes condition as null when specified as such', () => {
+      expect(inOptions({ condition: null })).to.deep.equal({ condition: null });
     });
 
     it('ignores and passes through unknown keys', () => {
@@ -272,4 +276,66 @@ describe('api/format/input', () => {
       expect(inTraceType(type)).to.deep.equal([type]);
     });
   });
+
+  describe('inDeriveHash', () => {
+    it('returns derive hash', () => {
+      expect(inDeriveHash(1)).to.deep.equal({
+        hash: '0x1',
+        type: 'soft'
+      });
+
+      expect(inDeriveHash(null)).to.deep.equal({
+        hash: '0x',
+        type: 'soft'
+      });
+
+      expect(inDeriveHash({
+        hash: 5
+      })).to.deep.equal({
+        hash: '0x5',
+        type: 'soft'
+      });
+
+      expect(inDeriveHash({
+        hash: 5,
+        type: 'hard'
+      })).to.deep.equal({
+        hash: '0x5',
+        type: 'hard'
+      });
+    });
+  });
+
+  describe('inDeriveIndex', () => {
+    it('returns derive hash', () => {
+      expect(inDeriveIndex(null)).to.deep.equal([]);
+      expect(inDeriveIndex([])).to.deep.equal([]);
+
+      expect(inDeriveIndex([1])).to.deep.equal([{
+        index: 1,
+        type: 'soft'
+      }]);
+
+      expect(inDeriveIndex({
+        index: 1
+      })).to.deep.equal([{
+        index: 1,
+        type: 'soft'
+      }]);
+
+      expect(inDeriveIndex([{
+        index: 1,
+        type: 'hard'
+      }, 5])).to.deep.equal([
+        {
+          index: 1,
+          type: 'hard'
+        },
+        {
+          index: 5,
+          type: 'soft'
+        }
+      ]);
+    });
+  });
 });
diff --git a/js/src/api/format/output.js b/js/src/api/format/output.js
index 7348487e7..8f375e210 100644
--- a/js/src/api/format/output.js
+++ b/js/src/api/format/output.js
@@ -284,12 +284,6 @@ export function outTransaction (tx) {
           tx[key] = outTransactionCondition(tx[key]);
           break;
 
-        case 'minBlock':
-          tx[key] = tx[key]
-            ? outNumber(tx[key])
-            : null;
-          break;
-
         case 'creates':
         case 'from':
         case 'to':
diff --git a/js/src/api/format/output.spec.js b/js/src/api/format/output.spec.js
index fabe30b32..6ffefaedc 100644
--- a/js/src/api/format/output.spec.js
+++ b/js/src/api/format/output.spec.js
@@ -392,7 +392,7 @@ describe('api/format/output', () => {
       });
     });
 
-    ['blockNumber', 'gasPrice', 'gas', 'minBlock', 'nonce', 'transactionIndex', 'value'].forEach((input) => {
+    ['blockNumber', 'gasPrice', 'gas', 'nonce', 'transactionIndex', 'value'].forEach((input) => {
       it(`formats ${input} number as hexnumber`, () => {
         const block = {};
 
@@ -404,8 +404,8 @@ describe('api/format/output', () => {
       });
     });
 
-    it('passes minBlock as null when null', () => {
-      expect(outTransaction({ minBlock: null })).to.deep.equal({ minBlock: null });
+    it('passes condition as null when null', () => {
+      expect(outTransaction({ condition: null })).to.deep.equal({ condition: null });
     });
 
     it('ignores and passes through unknown keys', () => {
diff --git a/js/src/api/rpc/parity/parity.js b/js/src/api/rpc/parity/parity.js
index 752557d80..f38e29e7b 100644
--- a/js/src/api/rpc/parity/parity.js
+++ b/js/src/api/rpc/parity/parity.js
@@ -14,7 +14,9 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import { inAddress, inAddresses, inData, inHex, inNumber16, inOptions, inBlockNumber } from '../../format/input';
+import {
+  inAddress, inAddresses, inData, inHex, inNumber16, inOptions, inBlockNumber, inDeriveHash, inDeriveIndex
+} from '../../format/input';
 import { outAccountInfo, outAddress, outAddresses, outChainStatus, outHistogram, outHwAccountInfo, outNodeKind, outNumber, outPeers, outRecentDapps, outTransaction, outVaultMeta } from '../../format/output';
 
 export default class Parity {
@@ -117,6 +119,18 @@ export default class Parity {
       .execute('parity_devLogsLevels');
   }
 
+  deriveAddressHash (address, password, hash, shouldSave) {
+    return this._transport
+      .execute('parity_deriveAddressHash', inAddress(address), password, inDeriveHash(hash), !!shouldSave)
+      .then(outAddress);
+  }
+
+  deriveAddressIndex (address, password, index, shouldSave) {
+    return this._transport
+      .execute('parity_deriveAddressIndex', inAddress(address), password, inDeriveIndex(index), !!shouldSave)
+      .then(outAddress);
+  }
+
   dropNonReservedPeers () {
     return this._transport
       .execute('parity_dropNonReservedPeers');
@@ -137,6 +151,11 @@ export default class Parity {
       .execute('parity_executeUpgrade');
   }
 
+  exportAccount (address, password) {
+    return this._transport
+      .execute('parity_exportAccount', inAddress(address), password);
+  }
+
   extraData () {
     return this._transport
       .execute('parity_extraData');
@@ -401,6 +420,12 @@ export default class Parity {
       .execute('parity_removeReservedPeer', encode);
   }
 
+  removeTransaction (hash) {
+    return this._transport
+      .execute('parity_removeTransaction', inHex(hash))
+      .then(outTransaction);
+  }
+
   rpcSettings () {
     return this._transport
       .execute('parity_rpcSettings');
diff --git a/js/src/jsonrpc/interfaces/parity.js b/js/src/jsonrpc/interfaces/parity.js
index e9ac256e3..3e6fa8475 100644
--- a/js/src/jsonrpc/interfaces/parity.js
+++ b/js/src/jsonrpc/interfaces/parity.js
@@ -379,7 +379,9 @@ export default {
             gasPrice: '0x2d20cff33',
             hash: '0x09e64eb1ae32bb9ac415ce4ddb3dbad860af72d9377bb5f073c9628ab413c532',
             input: '0x',
-            minBlock: null,
+            condition: {
+              block: 1
+            },
             networkId: null,
             nonce: '0x0',
             publicKey: '0x3fa8c08c65a83f6b4ea3e04e1cc70cbe3cd391499e3e05ab7dedf28aff9afc538200ff93e3f2b2cb5029f03c7ebee820d63a4c5a9541c83acebe293f54cacf0e',
@@ -435,17 +437,17 @@ export default {
           type: String,
           desc: 'Capability, either `full` or `light`.'
         }
+      },
+      example: {
+        availability: 'personal',
+        capability: 'light'
       }
-    },
-    example: {
-      availability: 'personal',
-      capability: 'light'
     }
   },
 
   netChain: {
     section: SECTION_NET,
-    desc: 'Returns the name of the connected chain.',
+    desc: 'Returns the name of the connected chain. DEPRECATED use `parity_chain` instead.',
     params: [],
     returns: {
       type: String,
@@ -454,6 +456,17 @@ export default {
     }
   },
 
+  chain: {
+    section: SECTION_NET,
+    desc: 'Returns the name of the connected chain. ',
+    params: [],
+    returns: {
+      type: String,
+      desc: 'chain name, one of: "foundation", "kovan", &c. of a filename.',
+      example: 'homestead'
+    }
+  },
+
   netPeers: {
     section: SECTION_NET,
     desc: 'Returns number of peers.',
@@ -589,7 +602,9 @@ export default {
           gasPrice: '0xba43b7400',
           hash: '0x160b3c30ab1cf5871083f97ee1cee3901cfba3b0a2258eb337dd20a7e816b36e',
           input: '0x095ea7b3000000000000000000000000bf4ed7b27f1d666546e30d74d50d173d20bca75400000000000000000000000000002643c948210b4bd99244ccd64d5555555555',
-          minBlock: null,
+          condition: {
+            block: 1
+          },
           networkId: 1,
           nonce: '0x5',
           publicKey: '0x96157302dade55a1178581333e57d60ffe6fdf5a99607890456a578b4e6b60e335037d61ed58aa4180f9fd747dc50d44a7924aa026acbfb988b5062b629d6c36',
@@ -609,6 +624,7 @@ export default {
   },
 
   pendingTransactionsStats: {
+    section: SECTION_NET,
     desc: 'Returns propagation stats for transactions in the queue.',
     params: [],
     returns: {
@@ -626,6 +642,49 @@ export default {
     }
   },
 
+  removeTransaction: {
+    section: SECTION_NET,
+    desc: 'Removes transaction from local transaction pool. Scheduled transactions and not-propagated transactions are safe to remove, removal of other transactions may have no effect though.',
+    params: [{
+      type: Hash,
+      desc: 'Hash of transaction to remove.',
+      example: '0x2547ea3382099c7c76d33dd468063b32d41016aacb02cbd51ebc14ff5d2b6a43'
+    }],
+    returns: {
+      type: Object,
+      desc: 'Removed transaction or `null`.',
+      details: TransactionResponse.details,
+      example: [
+        {
+          blockHash: null,
+          blockNumber: null,
+          creates: null,
+          from: '0xee3ea02840129123d5397f91be0391283a25bc7d',
+          gas: '0x23b58',
+          gasPrice: '0xba43b7400',
+          hash: '0x160b3c30ab1cf5871083f97ee1cee3901cfba3b0a2258eb337dd20a7e816b36e',
+          input: '0x095ea7b3000000000000000000000000bf4ed7b27f1d666546e30d74d50d173d20bca75400000000000000000000000000002643c948210b4bd99244ccd64d5555555555',
+          condition: {
+            block: 1
+          },
+          networkId: 1,
+          nonce: '0x5',
+          publicKey: '0x96157302dade55a1178581333e57d60ffe6fdf5a99607890456a578b4e6b60e335037d61ed58aa4180f9fd747dc50d44a7924aa026acbfb988b5062b629d6c36',
+          r: '0x92e8beb19af2bad0511d516a86e77fa73004c0811b2173657a55797bdf8558e1',
+          raw: '0xf8aa05850ba43b740083023b5894bb9bc244d798123fde783fcc1c72d3bb8c18941380b844095ea7b3000000000000000000000000bf4ed7b27f1d666546e30d74d50d173d20bca75400000000000000000000000000002643c948210b4bd99244ccd64d555555555526a092e8beb19af2bad0511d516a86e77fa73004c0811b2173657a55797bdf8558e1a062b4d4d125bbcb9c162453bc36ca156537543bb4414d59d1805d37fb63b351b8',
+          s: '0x62b4d4d125bbcb9c162453bc36ca156537543bb4414d59d1805d37fb63b351b8',
+          standardV: '0x1',
+          to: '0xbb9bc244d798123fde783fcc1c72d3bb8c189413',
+          transactionIndex: null,
+          v: '0x26',
+          value: '0x0'
+        },
+        new Dummy('{ ... }'),
+        new Dummy('{ ... }')
+      ]
+    }
+  },
+
   phraseToAddress: {
     section: SECTION_ACCOUNTS,
     desc: 'Converts a secret phrase into the corresponding address.',
@@ -916,7 +975,9 @@ export default {
           v: '0x25',
           r: '0xb40c6967a7e8bbdfd99a25fd306b9ef23b80e719514aeb7ddd19e2303d6fc139',
           s: '0x6bf770ab08119e67dc29817e1412a0e3086f43da308c314db1b3bca9fb6d32bd',
-          minBlock: null
+          condition: {
+            block: 1
+          }
         },
         new Dummy('{ ... }, { ... }, ...')
       ]
@@ -1307,12 +1368,14 @@ export default {
     params: [
       {
         type: Array,
-        desc: 'List of the Geth addresses to import.'
+        desc: 'List of the Geth addresses to import.',
+        example: ['0x407d73d8a49eeb85d32cf465507dd71d507100c1']
       }
     ],
     returns: {
       type: Array,
-      desc: 'Array of the imported addresses.'
+      desc: 'Array of the imported addresses.',
+      example: ['0x407d73d8a49eeb85d32cf465507dd71d507100c1']
     }
   },
 
@@ -1322,7 +1385,114 @@ export default {
     params: [],
     returns: {
       type: Array,
-      desc: '20 Bytes addresses owned by the client.'
+      desc: '20 Bytes addresses owned by the client.',
+      example: ['0x407d73d8a49eeb85d32cf465507dd71d507100c1']
+    }
+  },
+
+  deriveAddressHash: {
+    subdoc: SUBDOC_ACCOUNTS,
+    desc: 'Derive new address from given account address using specific hash.',
+    params: [
+      {
+        type: Address,
+        desc: 'Account address to derive from.',
+        example: '0x407d73d8a49eeb85d32cf465507dd71d507100c1'
+      },
+      {
+        type: String,
+        desc: 'Password to the account.',
+        example: 'hunter2'
+      },
+      {
+        type: Object,
+        desc: 'Derivation hash and type (`soft` or `hard`). E.g. `{ hash: "0x123..123", type: "hard" }`.',
+        example: {
+          hash: '0x2547ea3382099c7c76d33dd468063b32d41016aacb02cbd51ebc14ff5d2b6a43',
+          type: 'hard'
+        }
+      },
+      {
+        type: Boolean,
+        desc: 'Flag indicating if the account should be saved.',
+        example: false
+      }
+    ],
+    returns: {
+      type: Address,
+      desc: '20 Bytes new derived address.',
+      example: '0x407d73d8a49eeb85d32cf465507dd71d507100c1'
+    }
+  },
+
+  deriveAddressIndex: {
+    subdoc: SUBDOC_ACCOUNTS,
+    desc: 'Derive new address from given account address using hierarchical derivation (sequence of 32-bit integer indices).',
+    params: [
+      {
+        type: Address,
+        desc: 'Account address to export.',
+        example: '0x407d73d8a49eeb85d32cf465507dd71d507100c1'
+      },
+      {
+        type: String,
+        desc: 'Password to the account.',
+        example: 'hunter2'
+      },
+      {
+        type: Array,
+        desc: 'Hierarchical derivation sequence of index and type (`soft` or `hard`). E.g. `[{index:1,type:"hard"},{index:2,type:"soft"}]`.',
+        example: [
+          { index: 1, type: 'hard' },
+          { index: 2, type: 'soft' }
+        ]
+      },
+      {
+        type: Boolean,
+        desc: 'Flag indicating if the account should be saved.',
+        example: false
+      }
+    ],
+    returns: {
+      type: Address,
+      desc: '20 Bytes new derived address.',
+      example: '0x407d73d8a49eeb85d32cf465507dd71d507100c1'
+    }
+  },
+
+  exportAccount: {
+    subdoc: SUBDOC_ACCOUNTS,
+    desc: 'Returns a standard wallet file for given account if password matches.',
+    params: [
+      {
+        type: Address,
+        desc: 'Account address to export.',
+        example: '0x407d73d8a49eeb85d32cf465507dd71d507100c1'
+      },
+      {
+        type: String,
+        desc: 'Password to the account.',
+        example: 'hunter2'
+      }
+    ],
+    returns: {
+      type: Object,
+      desc: 'Standard wallet JSON.',
+      example: {
+        'address': '0042e5d2a662eeaca8a7e828c174f98f35d8925b',
+        'crypto': {
+          'cipher': 'aes-128-ctr',
+          'cipherparams': { 'iv': 'a1c6ff99070f8032ca1c4e8add006373' },
+          'ciphertext': 'df27e3db64aa18d984b6439443f73660643c2d119a6f0fa2fa9a6456fc802d75',
+          'kdf': 'pbkdf2',
+          'kdfparams': { 'c': 10240, 'dklen': 32, 'prf': 'hmac-sha256', 'salt': 'ddc325335cda5567a1719313e73b4842511f3e4a837c9658eeb78e51ebe8c815' },
+          'mac': '3dc888ae79cbb226ff9c455669f6cf2d79be72120f2298f6cb0d444fddc0aa3d'
+        },
+        'id': '6a186c80-7797-cff2-bc2e-7c1d6a6cc76e',
+        'meta': '{"passwordHint":"parity-export-test","timestamp":1490017814987}',
+        'name': 'parity-export-test',
+        'version': 3
+      }
     }
   },
 
@@ -1529,6 +1699,23 @@ export default {
     }
   },
 
+  setChain: {
+    subdoc: SUBDOC_SET,
+    desc: 'Sets the network spec file Parity is using.',
+    params: [
+      {
+        type: String,
+        desc: 'Chain spec name, one of: "foundation", "ropsten", "morden", "kovan", "olympic", "classic", "dev", "expanse" or a filename.',
+        example: 'foundation'
+      }
+    ],
+    returns: {
+      type: Boolean,
+      desc: '`true` if the call succeeded.',
+      example: true
+    }
+  },
+
   setMode: {
     subdoc: SUBDOC_SET,
     desc: 'Changes the operating mode of Parity.',
diff --git a/js/src/jsonrpc/interfaces/signer.js b/js/src/jsonrpc/interfaces/signer.js
index e38bad68f..495b8e0e8 100644
--- a/js/src/jsonrpc/interfaces/signer.js
+++ b/js/src/jsonrpc/interfaces/signer.js
@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import { Quantity, Data, BlockNumber } from '../types';
+import { Quantity, Data } from '../types';
 import { fromDecimal, Dummy } from '../helpers';
 
 export default {
@@ -71,9 +71,9 @@ export default {
             desc: 'Gas provided by the sender in Wei.',
             optional: true
           },
-          minBlock: {
-            type: BlockNumber,
-            desc: 'Integer block number, or the string `\'latest\'`, `\'earliest\'` or `\'pending\'`. Request will not be propagated till the given block is reached.',
+          condition: {
+            type: Object,
+            desc: 'Condition for scheduled transaction. Can be either an integer block number `{ block: 1 }` or UTC timestamp (in seconds) `{ timestamp: 1491290692 }`.',
             optional: true
           }
         },
@@ -114,7 +114,7 @@ export default {
   },
 
   confirmRequestWithToken: {
-    desc: 'Confirm specific request with token.',
+    desc: 'Confirm specific request with rolling token.',
     params: [
       {
         type: Quantity,
@@ -135,9 +135,9 @@ export default {
             desc: 'Gas provided by the sender in Wei.',
             optional: true
           },
-          minBlock: {
-            type: BlockNumber,
-            desc: 'Integer block number, or the string `\'latest\'`, `\'earliest\'` or `\'pending\'`. Request will not be propagated till the given block is reached.',
+          condition: {
+            type: Object,
+            desc: 'Conditional submission of the transaction. Can be either an integer block number `{ block: 1 }` or UTC timestamp (in seconds) `{ time: 1491290692 }` or `null`.',
             optional: true
           }
         },
@@ -145,7 +145,7 @@ export default {
       },
       {
         type: String,
-        desc: 'Password.',
+        desc: 'Password (initially) or a token returned by the previous call.',
         example: 'hunter2'
       }
     ],
@@ -159,7 +159,7 @@ export default {
         },
         token: {
           type: String,
-          desc: 'Token used to authenticate the request.'
+          desc: 'Token used to authenticate the next request.'
         }
       },
       example: {
diff --git a/js/src/jsonrpc/types.js b/js/src/jsonrpc/types.js
index 8803fdd5c..52e79019e 100644
--- a/js/src/jsonrpc/types.js
+++ b/js/src/jsonrpc/types.js
@@ -102,9 +102,9 @@ export class TransactionRequest {
       desc: 'Integer of a nonce. This allows to overwrite your own pending transactions that use the same nonce.',
       optional: true
     },
-    minBlock: {
-      type: BlockNumber,
-      desc: 'Delay until this block if specified.',
+    condition: {
+      type: Object,
+      desc: 'Conditional submission of the transaction. Can be either an integer block number `{ block: 1 }` or UTC timestamp (in seconds) `{ time: 1491290692 }` or `null`.',
       optional: true
     }
   }