diff --git a/packages/api-contract/src/base/Contract.ts b/packages/api-contract/src/base/Contract.ts
index 746d2e06da62..5e07693dd316 100644
--- a/packages/api-contract/src/base/Contract.ts
+++ b/packages/api-contract/src/base/Contract.ts
@@ -4,14 +4,14 @@
 import { ApiTypes, DecorateMethod } from '@polkadot/api/types';
 import { SubmittableExtrinsic } from '@polkadot/api/submittable/types';
 import { AccountId, ContractExecResult } from '@polkadot/types/interfaces';
-import { AnyJson, CodecArg } from '@polkadot/types/types';
+import { AnyJson, CodecArg, Registry } from '@polkadot/types/types';
 import { AbiMessage, ContractCallOutcome } from '../types';
 import { ContractRead, MapMessageExec, MapMessageRead } from './types';
 
 import BN from 'bn.js';
 import { map } from 'rxjs/operators';
 import ApiBase from '@polkadot/api/base';
-import { assert, bnToBn, isFunction, isUndefined, stringCamelCase } from '@polkadot/util';
+import { assert, bnToBn, isFunction, isObject, isUndefined, stringCamelCase } from '@polkadot/util';
 
 import Abi from '../Abi';
 import { formatData } from '../util';
@@ -19,6 +19,35 @@ import Base from './Base';
 
 const ERROR_NO_CALL = 'Your node does not expose the contracts.call RPC. This is most probably due to a runtime configuration.';
 
+// map from a JSON result to current-style ContractExecResult
+function mapExecResult (registry: Registry, json: AnyJson): ContractExecResult {
+  assert(isObject(json) && !Array.isArray(json), 'Invalid JSON result retrieved');
+
+  if (!Object.keys(json).some((key) => ['error', 'success'].includes(key))) {
+    return registry.createType('ContractExecResult', json);
+  }
+
+  const from = registry.createType('ContractExecResultTo260', json);
+
+  if (from.isSuccess) {
+    const s = from.asSuccess;
+
+    return registry.createType('ContractExecResult', {
+      gasConsumed: s.gasConsumed,
+      result: {
+        ok: {
+          data: s.data,
+          flags: s.flags
+        }
+      }
+    });
+  }
+
+  // in the old format error has no additional information,
+  // map it as-is with an "unknown" error
+  return registry.createType('ContractExecResult', { result: { err: { other: 'unknown' } } });
+}
+
 export default class Contract<ApiType extends ApiTypes> extends Base<ApiType> {
   public readonly address: AccountId;
 
@@ -80,20 +109,24 @@ export default class Contract<ApiType extends ApiTypes> extends Base<ApiType> {
     return {
       // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
       send: this._decorateMethod((origin: string | AccountId | Uint8Array) =>
-        this.api.rx.rpc.contracts.call({
+        this.api.rx.rpc.contracts.call.json({
           dest: this.address,
           gasLimit: this.#getGas(gasLimit),
           inputData: message.toU8a(params),
           origin,
           value
-        }).pipe(
-          map((result: ContractExecResult): ContractCallOutcome => ({
-            output: result.isSuccess && message.returnType
-              ? formatData(this.registry, result.asSuccess.data, message.returnType)
+        }).pipe(map((json): ContractCallOutcome => {
+          const { debugMessage, gasConsumed, result } = mapExecResult(this.registry, json.toJSON());
+
+          return {
+            debugMessage,
+            gasConsumed,
+            output: result.isOk && message.returnType
+              ? formatData(this.registry, result.asOk.data, message.returnType)
               : null,
             result
-          }))
-        )
+          };
+        }))
       )
     };
   }
diff --git a/packages/api-contract/src/types.ts b/packages/api-contract/src/types.ts
index f5346a867356..b72f6ee82999 100644
--- a/packages/api-contract/src/types.ts
+++ b/packages/api-contract/src/types.ts
@@ -2,10 +2,12 @@
 // SPDX-License-Identifier: Apache-2.0
 
 import { ApiTypes } from '@polkadot/api/types';
-import { ContractExecResult, ContractSelector } from '@polkadot/types/interfaces';
+import { ContractExecResultResult, ContractSelector } from '@polkadot/types/interfaces';
 import { Codec, CodecArg, TypeDef } from '@polkadot/types/types';
 
 import ApiBase from '@polkadot/api/base';
+import { Text, u64 } from '@polkadot/types';
+
 import Abi from './Abi';
 
 export interface ContractBase<ApiType extends ApiTypes> {
@@ -51,8 +53,10 @@ export interface InterfaceContractCalls {
 }
 
 export interface ContractCallOutcome {
+  debugMessage: Text;
+  gasConsumed: u64;
   output: Codec | null;
-  result: ContractExecResult;
+  result: ContractExecResultResult;
 }
 
 export interface DecodedEvent {
diff --git a/packages/api/src/base/Decorate.ts b/packages/api/src/base/Decorate.ts
index 138d40fd1c70..f2ebca90e636 100644
--- a/packages/api/src/base/Decorate.ts
+++ b/packages/api/src/base/Decorate.ts
@@ -274,6 +274,8 @@ export default abstract class Decorate<ApiType extends ApiTypes> extends Events
         if (this.hasSubscriptions || !(methodName.startsWith('subscribe') || methodName.startsWith('unsubscribe'))) {
           (section as Record<string, unknown>)[methodName] = decorateMethod(method, { methodName }) as unknown;
           // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+          (section as Record<string, { json: unknown }>)[methodName].json = decorateMethod(method.json, { methodName }) as unknown;
+          // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
           (section as Record<string, { raw: unknown }>)[methodName].raw = decorateMethod(method.raw, { methodName }) as unknown;
         }
 
diff --git a/packages/api/src/checkTypes.manual.ts b/packages/api/src/checkTypes.manual.ts
index 26adbaae19e5..e3493010c51b 100644
--- a/packages/api/src/checkTypes.manual.ts
+++ b/packages/api/src/checkTypes.manual.ts
@@ -115,7 +115,8 @@ async function rpc (api: ApiPromise): Promise<void> {
     console.log('current balance:', balance.toString());
   });
 
-  // using raw
+  // using json & raw
+  await api.rpc.chain.getBlock.json('0x123456');
   await api.rpc.chain.getBlock.raw('0x123456');
 
   // using raw subs
diff --git a/packages/api/src/types/rpc.ts b/packages/api/src/types/rpc.ts
index 1bca3f4bc12f..08044a56ff15 100644
--- a/packages/api/src/types/rpc.ts
+++ b/packages/api/src/types/rpc.ts
@@ -1,24 +1,26 @@
 // Copyright 2017-2020 @polkadot/api authors & contributors
 // SPDX-License-Identifier: Apache-2.0
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-import { AnyFunction, Callback, Codec } from '@polkadot/types/types';
+import { AnyFunction, Callback } from '@polkadot/types/types';
 
 import { Observable } from 'rxjs';
+import { Json, Raw } from '@polkadot/types/codec';
 
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
 import { ApiTypes, Push, PromiseResult, RxResult, UnsubscribePromise } from './base';
 
 export interface RpcRxResult<F extends AnyFunction> extends RxResult<F> {
-  raw (...args: Parameters<F>): Observable<Uint8Array & Codec>;
+  json (...args: Parameters<F>): Observable<Json>;
+  raw (...args: Parameters<F>): Observable<Raw>;
 }
 
 export interface RpcPromiseResult<F extends AnyFunction> extends PromiseResult<F> {
-  raw (...args: Parameters<F>): Promise<Uint8Array & Codec>;
-  raw (...args: Push<Parameters<F>, Callback<Uint8Array & Codec>>): UnsubscribePromise;
+  json (...args: Parameters<F>): Promise<Json>;
+  json (...args: Push<Parameters<F>, Callback<Json>>): UnsubscribePromise;
+  raw (...args: Parameters<F>): Promise<Raw>;
+  raw (...args: Push<Parameters<F>, Callback<Raw>>): UnsubscribePromise;
 }
 
-// FIXME The day TS has higher-kinded types, we can remove this hardcoded stuff
 export type RpcMethodResult<ApiType extends ApiTypes, F extends AnyFunction> = ApiType extends 'rxjs'
   ? RpcRxResult<F>
   : RpcPromiseResult<F>;
diff --git a/packages/rpc-core/src/index.ts b/packages/rpc-core/src/index.ts
index aa7325cb0bb2..3524f5e484d2 100644
--- a/packages/rpc-core/src/index.ts
+++ b/packages/rpc-core/src/index.ts
@@ -21,6 +21,8 @@ interface StorageChangeSetJSON {
   changes: [string, string | null][];
 }
 
+type OutputType = 'json' | 'raw' | 'scale';
+
 const l = logger('rpc-core');
 
 const EMPTY_META = {
@@ -211,12 +213,20 @@ export default class Rpc implements RpcInterface {
       }, {} as RpcInterface[Section]);
   }
 
-  private _createMethodWithRaw (creator: (isRaw: boolean) => (...values: any[]) => Observable<any>): RpcInterfaceMethod {
-    const call = creator(false) as Partial<RpcInterfaceMethod>;
+  private _memomize (creator: (outputAs: OutputType) => (...values: any[]) => Observable<any>): RpcInterfaceMethod & memoizee.Memoized<RpcInterfaceMethod> {
+    const memoized = memoizee(creator('scale') as RpcInterfaceMethod, {
+      // Dynamic length for argument
+      length: false,
+      // Normalize args so that different args that should be cached
+      // together are cached together.
+      // E.g.: `query.my.method('abc') === query.my.method(createType('AccountId', 'abc'));`
+      normalizer: normalizer(this.#instanceId)
+    });
 
-    call.raw = creator(true);
+    memoized.json = creator('json');
+    memoized.raw = creator('raw');
 
-    return call as RpcInterfaceMethod;
+    return memoized;
   }
 
   private _createMethodSend (section: string, method: string, def: DefinitionRpc): RpcInterfaceMethod {
@@ -226,7 +236,7 @@ export default class Rpc implements RpcInterface {
     let memoized: null | RpcInterfaceMethod & memoizee.Memoized<RpcInterfaceMethod> = null;
 
     // execute the RPC call, doing a registry swap for historic as applicable
-    const callWithRegistry = async (isRaw: boolean, values: any[]): Promise<Codec | Codec[]> => {
+    const callWithRegistry = async (outputAs: OutputType, values: any[]): Promise<Codec | Codec[]> => {
       const hash = hashIndex === -1
         ? undefined
         : values[hashIndex] as Uint8Array;
@@ -236,16 +246,16 @@ export default class Rpc implements RpcInterface {
       const params = this._formatInputs(registry, def, values);
       const data = await this.provider.send(rpcName, params.map((param): AnyJson => param.toJSON())) as AnyJson;
 
-      return isRaw
-        ? registry.createType('Raw', data)
-        : this._formatOutput(registry, method, def, params, data);
+      return outputAs === 'scale'
+        ? this._formatOutput(registry, method, def, params, data)
+        : registry.createType(outputAs === 'raw' ? 'Raw' : 'Json', data);
     };
 
-    const creator = (isRaw: boolean) => (...values: any[]): Observable<any> => {
+    const creator = (outputAs: OutputType) => (...values: any[]): Observable<any> => {
       const isDelayed = (hashIndex !== -1 && !!values[hashIndex]) || (cacheIndex !== -1 && !!values[cacheIndex]);
 
       return new Observable((observer: Observer<any>): VoidCallback => {
-        callWithRegistry(isRaw, values)
+        callWithRegistry(outputAs, values)
           .then((value): void => {
             observer.next(value);
             observer.complete();
@@ -269,10 +279,7 @@ export default class Rpc implements RpcInterface {
       );
     };
 
-    memoized = memoizee(this._createMethodWithRaw(creator), {
-      length: false,
-      normalizer: normalizer(this.#instanceId)
-    });
+    memoized = this._memomize(creator);
 
     return memoized;
   }
@@ -297,7 +304,7 @@ export default class Rpc implements RpcInterface {
     const subType = `${section}_${updateType}`;
     let memoized: null | RpcInterfaceMethod & memoizee.Memoized<RpcInterfaceMethod> = null;
 
-    const creator = (isRaw: boolean) => (...values: unknown[]): Observable<any> => {
+    const creator = (outputAs: OutputType) => (...values: unknown[]): Observable<any> => {
       return new Observable((observer: Observer<any>): VoidCallback => {
         // Have at least an empty promise, as used in the unsubscribe
         let subscriptionPromise: Promise<number | string | null> = Promise.resolve(null);
@@ -322,9 +329,9 @@ export default class Rpc implements RpcInterface {
 
             try {
               observer.next(
-                isRaw
-                  ? registry.createType('Raw', result)
-                  : this._formatOutput(registry, method, def, params, result)
+                outputAs === 'scale'
+                  ? this._formatOutput(registry, method, def, params, result)
+                  : registry.createType(outputAs === 'raw' ? 'Raw' : 'Json', result)
               );
             } catch (error) {
               observer.error(error);
@@ -353,14 +360,7 @@ export default class Rpc implements RpcInterface {
       }).pipe(drr());
     };
 
-    memoized = memoizee(this._createMethodWithRaw(creator), {
-      // Dynamic length for argument
-      length: false,
-      // Normalize args so that different args that should be cached
-      // together are cached together.
-      // E.g.: `query.my.method('abc') === query.my.method(createType('AccountId', 'abc'));`
-      normalizer: normalizer(this.#instanceId)
-    });
+    memoized = this._memomize(creator);
 
     return memoized;
   }
diff --git a/packages/rpc-core/src/types.ts b/packages/rpc-core/src/types.ts
index f4eced4ce879..34f554460826 100644
--- a/packages/rpc-core/src/types.ts
+++ b/packages/rpc-core/src/types.ts
@@ -7,5 +7,6 @@ export * from './types.jsonrpc';
 
 export interface RpcInterfaceMethod {
   (...params: any[]): Observable<any>;
+  json (...params: any[]): Observable<any>;
   raw (...params: any[]): Observable<any>;
 }
diff --git a/packages/typegen/src/generate/interfaceRegistry.ts b/packages/typegen/src/generate/interfaceRegistry.ts
index a2639af8af2c..b0ea83badb0f 100644
--- a/packages/typegen/src/generate/interfaceRegistry.ts
+++ b/packages/typegen/src/generate/interfaceRegistry.ts
@@ -3,6 +3,7 @@
 
 import Handlebars from 'handlebars';
 
+import Json from '@polkadot/types/codec/Json';
 import Raw from '@polkadot/types/codec/Raw';
 import { TypeRegistry } from '@polkadot/types/create';
 import * as defaultDefinitions from '@polkadot/types/interfaces/definitions';
@@ -13,6 +14,7 @@ import { ModuleTypes } from '../util/imports';
 
 const primitiveClasses = {
   ...defaultPrimitives,
+  Json,
   Raw
 };
 
diff --git a/packages/types/src/augment/registry.ts b/packages/types/src/augment/registry.ts
index 4b32c10c245b..f32a0446ac69 100644
--- a/packages/types/src/augment/registry.ts
+++ b/packages/types/src/augment/registry.ts
@@ -1,7 +1,7 @@
 // Auto-generated via `yarn polkadot-types-from-defs`, do not edit
 /* eslint-disable */
 
-import { Compact, Option, Raw, Vec } from '@polkadot/types/codec';
+import { Compact, Json, Option, Raw, Vec } from '@polkadot/types/codec';
 import { BitVec, Bytes, Data, DoNotConstruct, Null, StorageKey, Text, Type, U256, bool, i128, i16, i256, i32, i64, i8, u128, u16, u256, u32, u64, u8, usize } from '@polkadot/types/primitive';
 import { BlockAttestations, IncludedBlocks, MoreAttestations } from '@polkadot/types/interfaces/attestations';
 import { RawAuraPreDigest } from '@polkadot/types/interfaces/aura';
@@ -14,7 +14,7 @@ import { PrefixedStorageKey } from '@polkadot/types/interfaces/childstate';
 import { EthereumAddress, StatementKind } from '@polkadot/types/interfaces/claims';
 import { CollectiveOrigin, MemberCount, ProposalIndex, Votes, VotesTo230 } from '@polkadot/types/interfaces/collective';
 import { AuthorityId, RawVRFOutput } from '@polkadot/types/interfaces/consensus';
-import { AliveContractInfo, CodeHash, ContractCallRequest, ContractExecResult, ContractExecResultSuccess, ContractExecResultSuccessTo255, ContractExecResultTo255, ContractInfo, ContractStorageKey, Gas, HostFnWeights, InstructionWeights, PrefabWasmModule, PrefabWasmModuleReserved, Schedule, ScheduleTo212, ScheduleTo258, SeedOf, TombstoneContractInfo, TrieId } from '@polkadot/types/interfaces/contracts';
+import { AliveContractInfo, CodeHash, ContractCallRequest, ContractExecResult, ContractExecResultErr, ContractExecResultErrModule, ContractExecResultOk, ContractExecResultResult, ContractExecResultSuccessTo255, ContractExecResultSuccessTo260, ContractExecResultTo255, ContractExecResultTo260, ContractInfo, ContractStorageKey, Gas, HostFnWeights, InstructionWeights, PrefabWasmModule, PrefabWasmModuleReserved, Schedule, ScheduleTo212, ScheduleTo258, SeedOf, TombstoneContractInfo, TrieId } from '@polkadot/types/interfaces/contracts';
 import { ContractConstructorSpec, ContractContractSpec, ContractCryptoHasher, ContractDiscriminant, ContractDisplayName, ContractEventParamSpec, ContractEventSpec, ContractLayoutArray, ContractLayoutCell, ContractLayoutEnum, ContractLayoutHash, ContractLayoutHashingStrategy, ContractLayoutKey, ContractLayoutStruct, ContractLayoutStructField, ContractMessageParamSpec, ContractMessageSpec, ContractProject, ContractProjectContract, ContractProjectSource, ContractSelector, ContractStorageLayout, ContractTypeSpec } from '@polkadot/types/interfaces/contractsAbi';
 import { AccountVote, AccountVoteSplit, AccountVoteStandard, Conviction, Delegations, PreimageStatus, PreimageStatusAvailable, PriorLock, PropIndex, Proposal, ProxyState, ReferendumIndex, ReferendumInfo, ReferendumInfoFinished, ReferendumInfoTo239, ReferendumStatus, Tally, Voting, VotingDelegating, VotingDirect, VotingDirectVote } from '@polkadot/types/interfaces/democracy';
 import { ApprovalFlag, DefunctVoter, Renouncing, SetIndex, Vote, VoteIndex, VoteThreshold, VoterInfo } from '@polkadot/types/interfaces/elections';
@@ -129,6 +129,9 @@ declare module '@polkadot/types/types/registry' {
     'Compact<usize>': Compact<usize>;
     'Option<usize>': Option<usize>;
     'Vec<usize>': Vec<usize>;
+    Json: Json;
+    'Option<Json>': Option<Json>;
+    'Vec<Json>': Vec<Json>;
     Raw: Raw;
     'Option<Raw>': Option<Raw>;
     'Vec<Raw>': Vec<Raw>;
@@ -487,9 +490,24 @@ declare module '@polkadot/types/types/registry' {
     ContractExecResultTo255: ContractExecResultTo255;
     'Option<ContractExecResultTo255>': Option<ContractExecResultTo255>;
     'Vec<ContractExecResultTo255>': Vec<ContractExecResultTo255>;
-    ContractExecResultSuccess: ContractExecResultSuccess;
-    'Option<ContractExecResultSuccess>': Option<ContractExecResultSuccess>;
-    'Vec<ContractExecResultSuccess>': Vec<ContractExecResultSuccess>;
+    ContractExecResultSuccessTo260: ContractExecResultSuccessTo260;
+    'Option<ContractExecResultSuccessTo260>': Option<ContractExecResultSuccessTo260>;
+    'Vec<ContractExecResultSuccessTo260>': Vec<ContractExecResultSuccessTo260>;
+    ContractExecResultTo260: ContractExecResultTo260;
+    'Option<ContractExecResultTo260>': Option<ContractExecResultTo260>;
+    'Vec<ContractExecResultTo260>': Vec<ContractExecResultTo260>;
+    ContractExecResultErrModule: ContractExecResultErrModule;
+    'Option<ContractExecResultErrModule>': Option<ContractExecResultErrModule>;
+    'Vec<ContractExecResultErrModule>': Vec<ContractExecResultErrModule>;
+    ContractExecResultErr: ContractExecResultErr;
+    'Option<ContractExecResultErr>': Option<ContractExecResultErr>;
+    'Vec<ContractExecResultErr>': Vec<ContractExecResultErr>;
+    ContractExecResultOk: ContractExecResultOk;
+    'Option<ContractExecResultOk>': Option<ContractExecResultOk>;
+    'Vec<ContractExecResultOk>': Vec<ContractExecResultOk>;
+    ContractExecResultResult: ContractExecResultResult;
+    'Option<ContractExecResultResult>': Option<ContractExecResultResult>;
+    'Vec<ContractExecResultResult>': Vec<ContractExecResultResult>;
     ContractExecResult: ContractExecResult;
     'Option<ContractExecResult>': Option<ContractExecResult>;
     'Vec<ContractExecResult>': Vec<ContractExecResult>;
diff --git a/packages/types/src/interfaces/contracts/definitions.ts b/packages/types/src/interfaces/contracts/definitions.ts
index 8bb4b84656fc..e48935ea93ff 100644
--- a/packages/types/src/interfaces/contracts/definitions.ts
+++ b/packages/types/src/interfaces/contracts/definitions.ts
@@ -90,17 +90,45 @@ export default {
         Error: 'Null'
       }
     },
-    ContractExecResultSuccess: {
+    ContractExecResultSuccessTo260: {
       flags: 'u32',
       data: 'Bytes',
       gasConsumed: 'u64'
     },
-    ContractExecResult: {
+    ContractExecResultTo260: {
       _enum: {
-        Success: 'ContractExecResultSuccess',
+        Success: 'ContractExecResultSuccessTo260',
         Error: 'Null'
       }
     },
+    ContractExecResultErrModule: {
+      index: 'u8',
+      error: 'u8',
+      message: 'Option<Text>'
+    },
+    ContractExecResultErr: {
+      _enum: {
+        Other: 'Text',
+        CannotLookup: 'Null',
+        BadOrigin: 'Null',
+        Module: 'ContractExecResultErrModule'
+      }
+    },
+    ContractExecResultOk: {
+      flags: 'u32',
+      data: 'Bytes'
+    },
+    ContractExecResultResult: {
+      _enum: {
+        Ok: 'ContractExecResultOk',
+        Err: 'ContractExecResultErr'
+      }
+    },
+    ContractExecResult: {
+      gasConsumed: 'u64',
+      debugMessage: 'Text',
+      result: 'ContractExecResultResult'
+    },
     ContractInfo: {
       _enum: {
         Alive: 'AliveContractInfo',
diff --git a/packages/types/src/interfaces/contracts/types.ts b/packages/types/src/interfaces/contracts/types.ts
index 2276003a7b6b..1fba8fe879e1 100644
--- a/packages/types/src/interfaces/contracts/types.ts
+++ b/packages/types/src/interfaces/contracts/types.ts
@@ -2,7 +2,7 @@
 /* eslint-disable */
 
 import { Compact, Enum, Option, Raw, Struct, U8aFixed } from '@polkadot/types/codec';
-import { Bytes, Null, bool, u32, u64, u8 } from '@polkadot/types/primitive';
+import { Bytes, Null, Text, bool, u32, u64, u8 } from '@polkadot/types/primitive';
 import { AccountId, Balance, BlockNumber, Hash, Weight } from '@polkadot/types/interfaces/runtime';
 
 /** @name AliveContractInfo */
@@ -30,17 +30,41 @@ export interface ContractCallRequest extends Struct {
 }
 
 /** @name ContractExecResult */
-export interface ContractExecResult extends Enum {
-  readonly isSuccess: boolean;
-  readonly asSuccess: ContractExecResultSuccess;
-  readonly isError: boolean;
+export interface ContractExecResult extends Struct {
+  readonly gasConsumed: u64;
+  readonly debugMessage: Text;
+  readonly result: ContractExecResultResult;
+}
+
+/** @name ContractExecResultErr */
+export interface ContractExecResultErr extends Enum {
+  readonly isOther: boolean;
+  readonly asOther: Text;
+  readonly isCannotLookup: boolean;
+  readonly isBadOrigin: boolean;
+  readonly isModule: boolean;
+  readonly asModule: ContractExecResultErrModule;
 }
 
-/** @name ContractExecResultSuccess */
-export interface ContractExecResultSuccess extends Struct {
+/** @name ContractExecResultErrModule */
+export interface ContractExecResultErrModule extends Struct {
+  readonly index: u8;
+  readonly error: u8;
+  readonly message: Option<Text>;
+}
+
+/** @name ContractExecResultOk */
+export interface ContractExecResultOk extends Struct {
   readonly flags: u32;
   readonly data: Bytes;
-  readonly gasConsumed: u64;
+}
+
+/** @name ContractExecResultResult */
+export interface ContractExecResultResult extends Enum {
+  readonly isOk: boolean;
+  readonly asOk: ContractExecResultOk;
+  readonly isErr: boolean;
+  readonly asErr: ContractExecResultErr;
 }
 
 /** @name ContractExecResultSuccessTo255 */
@@ -49,6 +73,13 @@ export interface ContractExecResultSuccessTo255 extends Struct {
   readonly data: Raw;
 }
 
+/** @name ContractExecResultSuccessTo260 */
+export interface ContractExecResultSuccessTo260 extends Struct {
+  readonly flags: u32;
+  readonly data: Bytes;
+  readonly gasConsumed: u64;
+}
+
 /** @name ContractExecResultTo255 */
 export interface ContractExecResultTo255 extends Enum {
   readonly isSuccess: boolean;
@@ -56,6 +87,13 @@ export interface ContractExecResultTo255 extends Enum {
   readonly isError: boolean;
 }
 
+/** @name ContractExecResultTo260 */
+export interface ContractExecResultTo260 extends Enum {
+  readonly isSuccess: boolean;
+  readonly asSuccess: ContractExecResultSuccessTo260;
+  readonly isError: boolean;
+}
+
 /** @name ContractInfo */
 export interface ContractInfo extends Enum {
   readonly isAlive: boolean;