Sourced from github.com/cosmos/cosmos-sdk's releases.

v0.50.0-rc.1

Cosmos SDK v0.50.0-rc.1 Release Notes

There are no release notes for pre-releases.

Please refer to the CHANGELOG for an exhaustive list of changes.
Refer to the UPGRADING.md for upgrading your application.

Full Commit History: cosmos/cosmos-sdk@release/v0.47.x...release/v0.50.x

Upgrading from v0.50.0-rc.0

If you have started integrating with v0.50.0-rc.0, this release candidate contains one breaking change. This is contrary to our usual policy of not introducing breaking changes in release candidates, but we believe this change is necessary to ensure a smooth upgrade from previous SDK version to v0.50.0. Additionally, it gives a better UX for users integrating vote extensions. Read more about the change here.

Update your app.go / app_config.go as instructed in the UPGRADING.md.

Additionally, if you were using baseapp.SetPreFinalizeBlockHook in v0.50.0-rc.0, you should now use baseapp.SetPreBlocker for having the same functionality.

Sourced from github.com/cosmos/cosmos-sdk's changelog.

v0.50.0-rc.1 - 2023-09-25

Features

• (baseapp & types) #17712 Introduce PreBlock, which runs before begin blocker other modules, and allows to modify consensus parameters, and the changes are visible to the following state machine logics. Additionally it can be used for vote extensions.
• (genutil) #17571 Allow creation of AppGenesis without a file lookup.
• (keyring) #17424 Allows to import private keys encoded in hex.
• (client/rpc) #17274 Add QueryEventForTxCmd cmd to subscribe and wait event for transaction by hash.
• (codec) #17042 Add CollValueV2 which supports encoding of protov2 messages in collections.
• (x/gov) #16976 Add failed_reason field to Proposal under x/gov to indicate the reason for a failed proposal. Referenced from #238 under bnb-chain/greenfield-cosmos-sdk.
• (baseapp) #16898 Add preFinalizeBlockHook to allow vote extensions persistence.
• (cli) #16887 Add two new CLI commands: <appd> tx simulate for simulating a transaction; <appd> query block-results for querying CometBFT RPC for block results.
• (x/bank) #16852 Add DenomMetadataByQueryString query in bank module to support metadata query by query string.
• (types) #16257 Allow setting the base denom in the denom registry.
• (baseapp) #16239 Add Gas Limits to allow node operators to resource bound queries.
• (cli) #16209 Make StartCmd more customizable.
• (types/simulation) #16074 Add generic SimulationStoreDecoder for modules using collections.
• (genutil) #16046 Add "module-name" flag to genutil add-genesis-account to enable intializing module accounts at genesis.* #15970 Enable SIGN_MODE_TEXTUAL.
• (types) #15958 Add module.NewBasicManagerFromManager for creating a basic module manager from a module manager.
• (types/module) #15829 Add new endblocker interface to handle valset updates.
• (runtime) #15818 Provide logger through depinject instead of appBuilder.
• (types) #15735 Make ValidateBasic() error method of Msg interface optional. Modules should validate messages directly in their message handlers (RFC 001).
• (x/genutil) #15679 Allow applications to specify a custom genesis migration function for the genesis migrate command.
• (telemetry) #15657 Emit more data (go version, sdk version, upgrade height) in prom metrics.
• (client) #15597 Add status endpoint for clients.
• (testutil/integration) #15556 Introduce testutil/integration package for module integration testing.
• (runtime) #15547 Allow runtime to pass event core api service to modules.
• (client) #15458 Add a CmdContext field to client.Context initialized to cobra command's context.
• (x/genutil) #15301 Add application genesis. The genesis is now entirely managed by the application and passed to CometBFT at note instantiation. Functions that were taking a cmttypes.GenesisDoc{} now takes a genutiltypes.AppGenesis{}.
• (core) #15133 Implement RegisterServices in the module manager.
• (x/bank) #14894 Return a human readable denomination for IBC vouchers when querying bank balances. Added a ResolveDenom parameter to types.QueryAllBalancesRequest and --resolve-denom flag to GetBalancesCmd().
• (core) #14860 Add Precommit and PrepareCheckState AppModule callbacks.
• (x/gov) #14720 Upstream expedited proposals from Osmosis.
• (cli) #14659 Added ability to query blocks by events with queries directly passed to Tendermint, which will allow for full query operator support, e.g. >.
• (x/auth) #14650 Add Textual SignModeHandler. It is however NOT enabled by default, and should only be used for TESTING purposes until SIGN_MODE_TEXTUAL is fully released.
• (x/crisis) #14588 Use CacheContext() in AssertInvariants().
• (mempool) #14484 Add priority nonce mempool option for transaction replacement.
• (query) #14468 Implement pagination for collections.
• (x/gov) #14373 Add new proto field constitution of type string to gov module genesis state, which allows chain builders to lay a strong foundation by specifying purpose.
• (client) #14342 Add <app> config command is now a sub-command, for setting, getting and migrating Cosmos SDK configuration files.
• (x/distribution) #14322 Introduce a new gRPC message handler, DepositValidatorRewardsPool, that allows explicit funding of a validator's reward pool.
• (x/bank) #14224 Allow injection of restrictions on transfers using AppendSendRestriction or PrependSendRestriction.
• #13473 ADR-038: Go plugin system proposal.

Improvements

• (x/gov) #17780 Recover panics and turn them into errors when executing x/gov proposals.
• (baseapp) #17667 Close databases opened by SDK in baseApp.Close().
• (types/module) #17554 Introduce HasABCIGenesis which is implemented by a module only when a validatorset update needs to be returned.
• (cli) #17389 gRPC CometBFT commands have been added under <aapd> q consensus comet. CometBFT commands placement in the SDK has been simplified. See the exhaustive list below.

... (truncated)

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