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# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)

## Unreleased

## v4.4.0

### State breaking

- [#1965](https://github.com/babylonlabs-io/babylon/pull/1965) chore: bump CosmWasm/wasmd v0.60.5
- [#2024](https://github.com/babylonlabs-io/babylon/pull/2024) chore(deps): bump cosmos-sdk to v0.53.8, ship it as an empty v4.4 upgrade

## v4.3.1

### Bug Fixes

- [GHSA-692h-272j-rvgc](https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-692h-272j-rvgc) fix(checkpointing): proto-size accounting in checkpoint PrepareProposal repack

## v4.3.0

### Bug Fixes

- [GHSA-4rm2-cj74-f62h](https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-4rm2-cj74-f62h) fix: add possibility to unbond parent
of stake expansion child transaction that unbonds before being `ACTIVE`
- [GHSA-786p-4f8h-946w](https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-786p-4f8h-946w) fix(checkpointing): reject vote extensions with mismatched epoch number

## v4.2.7

### Improvements

- [#1999](https://github.com/babylonlabs-io/babylon/pull/1999) chore(deps): bump github.com/cometbft/cometbft
  from v0.38.21 to v0.38.22

## v4.2.5

### Improvements

- [GHSA-h598-3g3g-c67c](https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-h598-3g3g-c67c) chore: bump comet-bft to `v0.38.21`

## v4.2.3

### Improvements

- [#1922](https://github.com/babylonlabs-io/babylon/pull/1922) chore: add const of `MaxMintedPerBlock`

## v4.2.2

### Improvements

- [#1903](https://github.com/babylonlabs-io/babylon/pull/1903) chore: bump cometbft to `v0.38.20`

## v4.2.1

### Improvements

- [#1839](https://github.com/babylonlabs-io/babylon/pull/1839) Add query to get the voting power distribution
cache (is only available until that block is finalized)

## v4.2.0

### Bug Fixes

- [GHSA-m6wq-66p2-c8pc](https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-m6wq-66p2-c8pc) fix: nil check of block hash in vote extension
- [GHSA-4rmq-mc2c-r495](https://github.com/babylonlabs-io/babylon-ghsa-4rmq-mc2c-r495/pull/1) Fix conditional logic in `AfterBtcDelegationUnbonded` hook

## v4.1.0

### Bug fixes

- [GHSA-2fcv-qww3-9v6h](https://github.com/babylonlabs-io/babylon-ghsa-2fcv-qww3-9v6h/pull/1) Add unkown fields check on vote extension validation
- [GHSA-xq4h-wqm2-668w](https://github.com/babylonlabs-io/babylon-ghsa-xq4h-wqm2-668w/pull/2) crypto: ensure BIP-322 signatures are using `SIGHASH_ALL` or `SIGHASH_DEFAULT`

## v4.0.0

## v4.0.0-rc.3

### Improvements

- [#1848](https://github.com/babylonlabs-io/babylon/pull/1848) Add testnet v4rc3 upgrade handler

## v4.0.0-rc.2

### State breaking

- [#1832](https://github.com/babylonlabs-io/babylon/pull/1832) Add check for multiple txOut with same pk and
value in `GetOutputIdxInBTCTx`
- [#1841](https://github.com/babylonlabs-io/babylon/pull/1841) Add validation for max concurrent unbonding and
redelegation in `MsgWrappedUndelegate` and `MsgWrappedBeginRedelegate`.
- [#1842](https://github.com/babylonlabs-io/babylon/pull/1842) Add `MsgWrappedCreateValidator` queue msg details

### Improvements

- [#1831](https://github.com/babylonlabs-io/babylon/pull/1831) Removed unused parameter in `DeriveTaprootPkScript`

## v4.0.0-rc.1

### Improvements

- [#1762](https://github.com/babylonlabs-io/babylon/pull/1762) Add new test case on stake expansion
- [#1785](https://github.com/babylonlabs-io/babylon/pull/1785) CI reusable to v0.13.5 and golang lint version 2
- [#1776](https://github.com/babylonlabs-io/babylon/pull/1776) Track baby staked to active validators only
- [#1813](https://github.com/babylonlabs-io/babylon/pull/1813) Panic if there is an invalid amount of sats in the
finality provider distribution info

### Bug fixes

- [#1763](https://github.com/babylonlabs-io/babylon/pull/1763) Fix `v4` upgrade logic to store co-staker reward tracker for all stakers (baby and/or BTC)
- [#1771](https://github.com/babylonlabs-io/babylon/pull/1771) Fix `x/costaking` costakers portion to 2.35% of 5.5%
- [#1780](https://github.com/babylonlabs-io/babylon/pull/1780) Fix `x/costaking` `MsgUpdateParams` update score to
baby ratio where it wasn't increasing the costaker cumulative rewards and neither sending the previous rewards to gauge.
- [#1783](https://github.com/babylonlabs-io/babylon/pull/1783) Fix `x/costaking` calls baby delegation modified in hook `BeforeDelegationRemoved`
as the completely removal of an baby delegation doesn't calls `AfterDelegationModified
- [#1790](https://github.com/babylonlabs-io/babylon/pull/1790) Fix withdraw reward to only error if both `BTC_STAKER` and `COSTAKER` types have zero rewards available.
- [#1792](https://github.com/babylonlabs-io/babylon/pull/1792) Fix costaking baby bond unbond and bond again for the same delegation pair (del, val) in the same block
- [#1800](https://github.com/babylonlabs-io/babylon/pull/1800) Handle co-staking edge cases for baby stakers
- [#1802](https://github.com/babylonlabs-io/babylon/pull/1802) Fix non-determinism in co-staking
- [#1805](https://github.com/babylonlabs-io/babylon/pull/1805) Fix non-determinism in incentives `IterateBTCDelegationSatsUpdated`
- [#1815](https://github.com/babylonlabs-io/babylon/pull/1815) Fix export genesis with Costaker type in `x/incentive`

## v4.0.0-rc.0

### Improvements

- [#1734] Bump repository version to `v4`
- [#1736](https://github.com/babylonlabs-io/babylon/pull/1736) bump cosmos-sdk to `v0.53.2`
- [#1633](https://github.com/babylonlabs-io/babylon/pull/1663) Add spam prevention mechanisms to epoching module with minimum amount validation and gas consumption limits for wrapped delegate operations.
- [#1404](https://github.com/babylonlabs-io/babylon/pull/1404) Refactor power dist event processing.
- [#1347](https://github.com/babylonlabs-io/babylon/pull/1344) Add `MsgType` field to `QueuedMessageResponse` message.
- [#1737](https://github.com/babylonlabs-io/babylon/pull/1737) bump ibc-go to `v10` and wire up IBC `v2`
- [#1747](https://github.com/babylonlabs-io/babylon/pull/1747) bump cosmos-sdk to `v0.53.4`
- [#1062](https://github.com/babylonlabs-io/babylon/pull/1062) Add `anteHandler` to avoid fee grants on refundable tx (`x/incentive`)
- [#1060](https://github.com/babylonlabs-io/babylon/pull/1060) Optimize `PubRandCommit` lookup in `x/finality` module
- [#1335](https://github.com/babylonlabs-io/babylon/pull/1335) Tweaks on BTC stake expansion feature.
- [#1352](https://github.com/babylonlabs-io/babylon/pull/1352) Add stake expansion signatures in BTC delegation query response
- [#1369](https://github.com/babylonlabs-io/babylon/pull/1369) fix: update stake expansion validation to allow expanding
- [#1418](https://github.com/babylonlabs-io/babylon/pull/1418) fix: add stake expansion covenant signature to the events
- [#1740](https://github.com/babylonlabs-io/babylon/pull/1740) Simplify selective slashing message handler
- [#1416](https://github.com/babylonlabs-io/babylon/pull/1416) Relax requirements for stake expansion funding output
- [#1428](https://github.com/babylonlabs-io/babylon/pull/1428) Update stake expansion events
- [#1545](https://github.com/babylonlabs-io/babylon/pull/1545) fix: remove unnecessary covenant verification for stake expansion delegation
- [#1410](https://github.com/babylonlabs-io/babylon/pull/1410) Add stake expansion e2e test
- [#1707](https://github.com/babylonlabs-io/babylon/pull/1707) Add `x/costaking`

### Features

- [#1231](https://github.com/babylonlabs-io/babylon/pull/1231) Add BTC stake expansion.

## v2.3.2

### Bug fixes

- [#1808](https://github.com/babylonlabs-io/babylon/pull/1808) Updates cometbft to v0.38.19 fix ASA-2025-003.

## v2.3.1

### Improvements

- [#1775](https://github.com/babylonlabs-io/babylon/pull/1775) testnet: add upgrade `v23` to testnet build tag
for bbn-test-6

## v2.3.0

### Improvements

- [#1269](https://github.com/babylonlabs-io/babylon/pull/1269) Add fee collector e2e tests.
- [#1344](https://github.com/babylonlabs-io/babylon/pull/1344) Bump cosmos-sdk and
remove send restrictions
- [#1398](https://github.com/babylonlabs-io/babylon/pull/1398) Add custom tokenfactory
bindings (thanks @benluelo for contribution)
- [#1594](https://github.com/babylonlabs-io/babylon/pull/1594) Add soft deleted to finality providers response.
- [#1611](https://github.com/babylonlabs-io/babylon/pull/1611) Rename `x/btcstaking` prefixes as `v3.x`.
- [#1668](https://github.com/babylonlabs-io/babylon/pull/1668) Bump dependencies based on dependabot alerts

### Bug Fixes

- [#1355](https://github.com/babylonlabs-io/babylon/pull/1355) Allow empty fees on genesis transactions
- [#1453](https://github.com/babylonlabs-io/babylon/pull/1453) fix: inactive FP event on full unbonding
- [#1593](https://github.com/babylonlabs-io/babylon/pull/1593) fix: disabled duplicate fp bbn addr registering
- [#1714](https://github.com/babylonlabs-io/babylon/pull/1714) Add BLS key flags to `rollback` and `bootstrap-state` cmds

## v2.2.0

### Improvements

- [GHSA-56j4-446m-qrf6](https://github.com/babylonlabs-io/babylon-ghsa-56j4-446m-qrf6/pull/1) Add bank restriction for fee collector account

## v2.1.0

- [#1244](https://github.com/babylonlabs-io/babylon/pull/1244) fix: remove staking module from app end blocker order

## v2.0.0

- [#1226](https://github.com/babylonlabs-io/babylon/pull/1226) chore: Revert goreleaser to use musl

## v2.0.0-rc.4

### Improvements

- [#1191](https://github.com/babylonlabs-io/babylon/pull/1191) fix: update fp commission
- [#1109](https://github.com/babylonlabs-io/babylon/pull/1190) Use glibc for goreleaser
- [#1197](https://github.com/babylonlabs-io/babylon/pull/1197) fix: add validate of bad unbonding fee in btcstaking params.
- [#1211](https://github.com/babylonlabs-io/babylon/pull/1211) Update upgrade handler name to v2rc4

### State Machine Breaking

- [#1207](https://github.com/babylonlabs-io/babylon/pull/1207) Update wasmd to [v0.54.1](https://github.com/CosmWasm/wasmd/releases/tag/v0.54.1)

### Bug fixes

- [#1196](https://github.com/babylonlabs-io/babylon/pull/1196) fix: add pagination in `QueryBlsPublicKeyListRequest`.

## v2.0.0-rc.3

### Improvements

- [#1065](https://github.com/babylonlabs-io/babylon/pull/1065) Add check for period of current rewards to be larger than zero.
- [#1128](https://github.com/babylonlabs-io/babylon/pull/1128) Validate genesis fp historic reward entries.
- [#1064](https://github.com/babylonlabs-io/babylon/pull/1064) Signing info validation for `StartHeight` and `MissedBlockCounter`.
- [#1034](https://github.com/babylonlabs-io/babylon/pull/1034) Remove redundant `ValidateBasic` call in `x/btcstaking` message server
- [#1036](https://github.com/babylonlabs-io/babylon/pull/1036) Remove token factory `enable_admin_sudo_mint` capability
- [#1046](https://github.com/babylonlabs-io/babylon/pull/1046) Update genesis & validations `x/btcstaking` module
- [#1050](https://github.com/babylonlabs-io/babylon/pull/1050) Add query to get btc delegations at specific block height
- [#1061](https://github.com/babylonlabs-io/babylon/pull/1061) Add size and hex decode in
`RefundableMsgHashes` validate genesis
- [#1071](https://github.com/babylonlabs-io/babylon/pull/1071) Update `FinalityProviderDistInfo` validations
- [#1069](https://github.com/babylonlabs-io/babylon/pull/1069) Add validation on the txkey in btcstaking
- [#1070](https://github.com/babylonlabs-io/babylon/pull/1070) fix: validation for vp dist cache
- [#1078](https://github.com/babylonlabs-io/babylon/pull/1078) fix: enforce check ibc msg size in `finalizeBlockState`
- [#1082](https://github.com/babylonlabs-io/babylon/pull/1082) chore: val sequential epoch
- [#1083](https://github.com/babylonlabs-io/babylon/pull/1083) Check if `WithdrawAddress` is a blocked address in `SetWithdrawAddress`
- [#1084](https://github.com/babylonlabs-io/babylon/pull/1084) Check for negative amount in `TotalActiveSat` in `subFinalityProviderStaked`
- [#1085](https://github.com/babylonlabs-io/babylon/pull/1085) Update comment in `SetRewardTrackerEvent` function
- [#1089](https://github.com/babylonlabs-io/babylon/pull/1089) chore: validate block diff
- [#1096](https://github.com/babylonlabs-io/babylon/pull/1096) chore: validate stats positive
- [#1097](https://github.com/babylonlabs-io/babylon/pull/1097) Update `Evidence.ValidateBasic` function
- [#1098](https://github.com/babylonlabs-io/babylon/pull/1098) Support `HasValidateBasic` interface in `ValidateEntries` function
- [#1102](https://github.com/babylonlabs-io/babylon/pull/1102) Handle empty `BTCStakingGauge` when no fees are intercepted
- [#1118](https://github.com/babylonlabs-io/babylon/pull/1118) Update `RawCheckpointWithMeta` and `BlsMultiSig` validations
- [#1126](https://github.com/babylonlabs-io/babylon/pull/1126) chore: add bls key validation
- [#1135](https://github.com/babylonlabs-io/babylon/pull/1135) Add validation to `LastProcessedHeightEventRewardTracker` on `InitGenesis`
- [#1136](https://github.com/babylonlabs-io/babylon/pull/1136) Fix `SubmissionEntry` duplicate validation in `InitGenesis`
- [#1147](https://github.com/babylonlabs-io/babylon/pull/1147) chore: vp dist cache count active fps
- [#1151](https://github.com/babylonlabs-io/babylon/pull/1151) Add whitelisted channels to add rate limit in `v2` upgrade.
- [#1152](https://github.com/babylonlabs-io/babylon/pull/1152) chore: validate power non negative.
- [#1168](https://github.com/babylonlabs-io/babylon/pull/1168) chore: removed duplicated addr len check in `SetAddressVerifier`.
- [#1171](https://github.com/babylonlabs-io/babylon/pull/1171) chore: add validation of `DelegationLifecycle`.
- [#1174](https://github.com/babylonlabs-io/babylon/pull/1174) chore: reduced ibc `MaxAddressSize` to max value of bech 32 addr (90).
- [#1181](https://github.com/babylonlabs-io/babylon/pull/1181) Update upgrade handler name to v2rc3

### State Machine Breaking

- [#1146](https://github.com/babylonlabs-io/babylon/pull/1146) Remove deprecated `x/crisis` module.

## v2.0.0-rc.2

### Improvements

- [#981](https://github.com/babylonlabs-io/babylon/pull/981) Set IBC rate limit for `ubbn` to 10%
- [#1013](https://github.com/babylonlabs-io/babylon/pull/1013) Update to ibc rate limit `v8.1.0`
- [#1018](https://github.com/babylonlabs-io/babylon/pull/1018) Improve genesis validations in `x/mint` and `x/btccheckpoint`
- [#1030](https://github.com/babylonlabs-io/babylon/pull/1030) Update upgrade handler name to v2rc2

## v2.0.0-rc.1

### Improvements

- [#931](https://github.com/babylonlabs-io/babylon/pull/931) Add darwin and linux-arm64 build
- [#992](https://github.com/babylonlabs-io/babylon/pull/992) Add checks for bad halting height in `HandleResumeFinalityProposal`
- [#993](https://github.com/babylonlabs-io/babylon/pull/993) Remove async-icq
  module.

### State Machine Breaking

- [#947](https://github.com/babylonlabs-io/babylon/pull/947) Improve signing info update upon fp activated
- [#994](https://github.com/babylonlabs-io/babylon/pull/994) Soft fork ibcratelimit to call `BeginBlock`

## v2.0.0-rc.0

### Improvements

- [#850](https://github.com/babylonlabs-io/babylon/pull/850) Add BLS improvement including permission and verification
- [#841](https://github.com/babylonlabs-io/babylon/pull/841) chore: upgrade the make file: release
- [#909](https://github.com/babylonlabs-io/babylon/pull/909) Update tokenfactory upgrade fee params to `ubbn`.
- [#884](https://github.com/babylonlabs-io/babylon/pull/884) Bump tokenfactory version to v0.50.6
- [#846](https://github.com/babylonlabs-io/babylon/pull/846) Add tokenfactory module.
- [#821](https://github.com/babylonlabs-io/babylon/pull/821) Add import/export genesis logic in `x/btccheckpoint` module
- [#828](https://github.com/babylonlabs-io/babylon/pull/828) Add `AllowedStakingTxHashes` and `LargetsBTCReorg` to import/export genesis logic in `x/btcstaking` module
- [#840](https://github.com/babylonlabs-io/babylon/pull/840) Add import/export genesis logic in `x/checkpointing` module
- [#843](https://github.com/babylonlabs-io/babylon/pull/843) Add import/export genesis logic in `x/epoching` module
- [#847](https://github.com/babylonlabs-io/babylon/pull/847) Add ibc callbacks to
transfer stack
- [#859](https://github.com/babylonlabs-io/babylon/pull/859) Update init/export genesis logic in `x/finality` module
- [#876](https://github.com/babylonlabs-io/babylon/pull/876) Add Packet Forwarding Middleware (PFM) module.
- [#881](https://github.com/babylonlabs-io/babylon/pull/881) Update init/export genesis logic in `x/mint` module
- [#883](https://github.com/babylonlabs-io/babylon/pull/883) Update init/export genesis logic in `x/monitor` module
- [#897](https://github.com/babylonlabs-io/babylon/pull/897) Add Interchain Accounts (ICA) and Interchain Queries (ICQ) modules.
- [#902](https://github.com/babylonlabs-io/babylon/pull/902) Add IBC rate limiter to IBC transfer module
- [#913](https://github.com/babylonlabs-io/babylon/pull/913) Remove IBC-fee module.

### State Machine Breaking

- [#877](https://github.com/babylonlabs-io/babylon/pull/877) fix: BTC reward tracker are stored as events and updated only
when the babylon block is being BTC rewarded.

## v1.1.0

### Bug fixes

- [#860](https://github.com/babylonlabs-io/babylon/pull/860) fix: ensure active fps have signing info after finality resumption proposal.
- [#842](https://github.com/babylonlabs-io/babylon/pull/842) fix: Properly wire `btclightclient` hook for
`btcstaking` to panic in case of a BTC reorg larger than `BtcConfirmationDepth`.
- [#829](https://github.com/babylonlabs-io/babylon/pull/829) fix: add checks for slashed fp in gov resume finality.
- [#905](https://github.com/babylonlabs-io/babylon/pull/905) Add `ValidateBasic` for `CommitPubRandList`
- [#906](https://github.com/babylonlabs-io/babylon/pull/906) Add distribution bank wrapper.

## v1.0.2

- [#802](https://github.com/babylonlabs-io/babylon/pull/802) fix: clean up resources allocated by TmpAppOptions
- [#805](https://github.com/babylonlabs-io/babylon/pull/805) chore: upgrade the make file: linting
- [#816](https://github.com/babylonlabs-io/babylon/pull/816) chore: upgrade the make file: gosec

## v1.0.1

### Bug fixes

- [#793](https://github.com/babylonlabs-io/babylon/pull/793) fix: BLS key will be overwritten when the password is not retrieved

## v1.0.0

## v1.0.0-rc11

### Bug fixes

- [#780](https://github.com/babylonlabs-io/babylon/pull/780) crypto: remove Verify for ECDSA

## v1.0.0-rc10

### Improvements

- [#761](https://github.com/babylonlabs-io/babylon/pull/746) Add mainnet allowed transaction hash to v1 upgrade handler.
- [#760](https://github.com/babylonlabs-io/babylon/pull/760) Add mainnet BTC headers
height from `854785` to `890123`.
- [#757](https://github.com/babylonlabs-io/babylon/pull/757) Statically link wasm and add binaries
with [`testnet`, `mainnet`] flags to release assets.
- [#746](https://github.com/babylonlabs-io/babylon/pull/746) Add mainnet parameters to v1 upgrade handler.

## v1.0.0-rc9

### Improvements

- [#749](https://github.com/babylonlabs-io/babylon/pull/749) Upgrade handler for `v1rc9`

### State breaking

- [#745](https://github.com/babylonlabs-io/babylon/pull/745) Hard limit of the number of finalized
and rewarded blocks

### Bug fixes

- [#748](https://github.com/babylonlabs-io/babylon/pull/748) fix: gov resume finality, index block before tally.
- [#731](https://github.com/babylonlabs-io/babylon/pull/731) chore: fix block timeout in Babylon client

## v1.0.0-rc8

### API Breaking

- [#690](https://github.com/babylonlabs-io/babylon/pull/690) Add new BLS password flow which includes env variable.
- [#682](https://github.com/babylonlabs-io/babylon/pull/682) Avoid creating pop in `babylond tx checkpointing create-validator`

### Bug fixes

- [#657](https://github.com/babylonlabs-io/babylon/pull/657) crypto: fix adaptor sig timing side channels
- [#656](https://github.com/babylonlabs-io/babylon/pull/656) crypto: fix adaptor sig validity and typos
- [#658](https://github.com/babylonlabs-io/babylon/pull/658) crypto: check if Z==1 in ToBTCPK
- [#667](https://github.com/babylonlabs-io/babylon/pull/667) crypto: enable groupcheck in BLS verification/aggregation
- [#660](https://github.com/babylonlabs-io/babylon/pull/660) fix: ecdsa verification
- [#680](https://github.com/babylonlabs-io/babylon/pull/680) crypto: fix bls rogue attack
- [#673](https://github.com/babylonlabs-io/babylon/pull/673) fix: move bip322 signing functions to `testutil`
- [#683](https://github.com/babylonlabs-io/babylon/pull/683) crypto: fix eots signing timing attack
- [#691](https://github.com/babylonlabs-io/babylon/pull/691) crypto: fix eots missing normalization in use of secp256k1.FieldVal
- [#671](https://github.com/babylonlabs-io/babylon/pull/671) crypto: align adaptor sig impl with Blockstream spec
- [#705](https://github.com/babylonlabs-io/babylon/pull/705) Add bls key length validation from the ERC-2335 keystore
- [#712](https://github.com/babylonlabs-io/babylon/pull/712) fix: remove exponentially events emission at processing queued msgs at the end epoch.

### Improvements

- [#701](https://github.com/babylonlabs-io/babylon/pull/701) Update upgrade name to `v1rc8`
- [#687](https://github.com/babylonlabs-io/babylon/pull/687) Add details to btc-reorg runbook.
- [#655](https://github.com/babylonlabs-io/babylon/pull/655) Add func `ParseV0StakingTxWithoutTag` to
parse staking tx without verifying opreturn tag.
- [#666](https://github.com/babylonlabs-io/babylon/pull/666) Upgrade to wasmvm v2.2.3.
- [#668](https://github.com/babylonlabs-io/babylon/pull/668) Remove unused unsafe key gen functions
- [#676](https://github.com/babylonlabs-io/babylon/pull/676) Bump IBC-go to `v8.7.0`
- [#644](https://github.com/babylonlabs-io/babylon/pull/644) Add priority nonce mempool and transaction priority ante handler decorator
- [#693](https://github.com/babylonlabs-io/babylon/pull/693) chore: use timeout from config in bbn client
- [#660](https://github.com/babylonlabs-io/babylon/pull/660) add function to recover pub key from sig
- [#625](https://github.com/babylonlabs-io/babylon/pull/625) add tx gas limit decorator and local mempool config

### State breaking

- [#697](https://github.com/babylonlabs-io/babylon/pull/697) Update BIP322 PoP and
ECDSA Pop to sign bech32 encoded cosmos address
- [#695](https://github.com/babylonlabs-io/babylon/pull/695) Improve checkpoint panicking behavior

## v1.0.0-rc7

### Improvements

- [#648](https://github.com/babylonlabs-io/babylon/pull/648) Add query to get all parameters
from `x/btcstaking` module.
- [#544](https://github.com/babylonlabs-io/babylon/pull/544) Add `bls-config` to `app.toml` for custom bls key location.
- [#558](https://github.com/babylonlabs-io/babylon/pull/558) Change BLS public key format from hex to base64 in bls_key.json.
- [#466](https://github.com/babylonlabs-io/babylon/pull/466) Add e2e test to
- [#519](https://github.com/babylonlabs-io/babylon/pull/519) Add missing data in `InitGenesis` and `ExportGenesis` in `x/incentive` module
block bank send and still create BTC delegations
- [#538](https://github.com/babylonlabs-io/babylon/pull/538) Upgrade to wasmd v0.54.x and wasmvm v2.2.x
- [#527](https://github.com/babylonlabs-io/babylon/pull/527) Create BSL signer on start command with flags.
- [#554](https://github.com/babylonlabs-io/babylon/pull/554) Improve vote extension logs
- [#566](https://github.com/babylonlabs-io/babylon/pull/566) Remove float values in `BeforeValidatorSlashed` hook in `x/epoching` module
- [#542](https://github.com/babylonlabs-io/babylon/pull/542) Add missing data in `InitGenesis` and `ExportGenesis` in `x/incentive` module (follow up of [#519](https://github.com/babylonlabs-io/babylon/pull/519))
- [#589](https://github.com/babylonlabs-io/babylon/pull/589) Rename `btc_delegation` stakeholder type to `btc_staker` in `x/incentive` module
- [#590](https://github.com/babylonlabs-io/babylon/pull/590) Add `DelegationRewards` query in `x/incentive` module
- [#625](https://github.com/babylonlabs-io/babylon/pull/625) Add `GasLimit` decorator in ante handler and local mempool configuration
- [#633](https://github.com/babylonlabs-io/babylon/pull/633) Fix swagger

### State Machine Breaking

- [#518](https://github.com/babylonlabs-io/babylon/pull/518) Add check BTC reorg blocks higher than `k` deep
- [#530](https://github.com/babylonlabs-io/babylon/pull/530) Add `ConflictingCheckpointReceived` flag in `x/checkpointing` module.
- [#537](https://github.com/babylonlabs-io/babylon/pull/537) Add `CommissionRates` type to `MsgCreateFinalityProvider` and commission validation to `EditFinalityProvider` in `x/btcstaking` module
- [#567](https://github.com/babylonlabs-io/babylon/pull/567) Add check for height overflow in `CommitPubRandList` in `x/finality` module
- [#620](https://github.com/babylonlabs-io/babylon/pull/620) fix: Incorrect set of JailUntil after unjailing

### Bug fixes

- [#539](https://github.com/babylonlabs-io/babylon/pull/539) fix: add missing `x/checkpointing` hooks
invocation
- [#591](https://github.com/babylonlabs-io/babylon/pull/591) bump ibc to v8.6.1 that fixes security issue
- [#579](https://github.com/babylonlabs-io/babylon/pull/579) Slashed FP gets activated in voting power distribution
cache if an old BTC delegation receives inclusion proof
- [#592](https://github.com/babylonlabs-io/babylon/pull/592) finality: avoid refunding finality signatures over forks
- [#525](https://github.com/babylonlabs-io/babylon/pull/525) fix: add back `NewIBCHeaderDecorator` post handler
- [#563](https://github.com/babylonlabs-io/babylon/pull/563) reject coinbase staking transactions
- [#584](https://github.com/babylonlabs-io/babylon/pull/584) fix: Panic can be triggered in handling liveness
- [#585](https://github.com/babylonlabs-io/babylon/pull/585) fix: Proposal vote extensions' byte limit
- [#594](https://github.com/babylonlabs-io/babylon/pull/594) Refund tx to correct recipient
- [#599](https://github.com/babylonlabs-io/babylon/pull/599) check staker signature in `BTCUndelegate`
- [#631](https://github.com/babylonlabs-io/babylon/pull/631) Ignore expired events
if delegation was never activated
- [#629](https://github.com/babylonlabs-io/babylon/pull/629) Allow OP_RETURN as slashing output
- [#597](https://github.com/babylonlabs-io/babylon/pull/597) fix: Expired and Unbonding delegation
in the same BTC block could lead to a panic and chain halt
- [#647](https://github.com/babylonlabs-io/babylon/pull/647) Ignore unbonding event
if delegation did not have covenant quorum

## v1.0.0-rc6

### Improvements

- [#508](https://github.com/babylonlabs-io/babylon/pull/508) Move PoP constructor functiosn to datagen/
- [#499](https://github.com/babylonlabs-io/babylon/pull/499) Add `params-by-version` CLI command
- [#515](https://github.com/babylonlabs-io/babylon/pull/515) Add `staker_addr` to `EventBTCDelegationCreated`
- [#458](https://github.com/babylonlabs-io/babylon/pull/458) Set `CosmosProvider` functions as public in
`babylonclient` package

### Bug fixes

- [#509](https://github.com/babylonlabs-io/babylon/pull/509) crypto: fix ECDSA malleability
- [#486](https://github.com/babylonlabs-io/babylon/pull/486) crypto: blinding base mult of nonce
- [#443](https://github.com/babylonlabs-io/babylon/pull/443) Fix swagger generation for incentive missing `v1` in path
- [#505](https://github.com/babylonlabs-io/babylon/pull/505) Fix `x/btcstaking`
delegation queries

## v1.0.0-rc5

### Improvements

- [#483](https://github.com/babylonlabs-io/babylon/pull/483) Upgrade wasmd and wasmvm to latest
versions (related to security advisories CWA-2025-001 and CWA-2025-002)
- [#464](https://github.com/babylonlabs-io/babylon/pull/464) Update security email. Fix site / repository refs
- [#421](https://github.com/babylonlabs-io/babylon/pull/421) Add checks to public
randomness commit at `TestBTCRewardsDistribution`.
- [#445](https://github.com/babylonlabs-io/babylon/pull/445) Reject BTC headers
forks starting with already known header
- [#457](https://github.com/babylonlabs-io/babylon/pull/457)  Remove staking msg
server and update gentx to generate `MsgWrappedCreateValidator`
- [#473](https://github.com/babylonlabs-io/babylon/pull/473) Fix checkpoint status transition
from `Finalized` to `Forgotten`
- [#457](https://github.com/babylonlabs-io/babylon/pull/457) Remove staking msg server and update gentx to generate
  `MsgWrappedCreateValidator`
- [#476](https://github.com/babylonlabs-io/babylon/pull/476) Bump cometbft to `v0.38.17`
- [#491](https://github.com/babylonlabs-io/babylon/pull/491) Allow slashing rate
to have 4 decimal places
- [#488](https://github.com/babylonlabs-io/babylon/pull/488) Fix duplicate BLS key registration in testnet command
- [#493](https://github.com/babylonlabs-io/babylon/pull/493) Add v1rc5 testnet
upgrade handler

## v1.0.0-rc4

### Improvements

- [#419](https://github.com/babylonlabs-io/babylon/pull/419) Add new modules to swagger config
- [#429](https://github.com/babylonlabs-io/babylon/pull/429) chore: remove cosmos/relayer dependency

### Bug fixes

- [#353](https://github.com/babylonlabs-io/babylon/pull/353) Bump to SDK
  0.50.11
- [#404](https://github.com/babylonlabs-io/babylon/pull/404) Improve adaptor
signature nonce generation to match reference implementation
- [#413](https://github.com/babylonlabs-io/babylon/pull/413) Fix adaptor
signature R verification
- [#441](https://github.com/babylonlabs-io/babylon/pull/441) Fix fuzzing test for
`CreateBTCDelegationWithParamsFromBtcHeight`

## v1.0.0-rc3

### Bug fixes

- [#374](https://github.com/babylonlabs-io/babylon/pull/374) Fix non-consecutive finalization
of the block in `TallyBlocks` function
- [#378](https://github.com/babylonlabs-io/babylon/pull/378) Fix give out rewards
with gaps of unfinalized blocks
- [#385](https://github.com/babylonlabs-io/babylon/pull/385) Fix epoching module
ante handler to return from antehandler chain only in case of error

## v1.0.0-rc2

### Bug fixes

- [#371](https://github.com/babylonlabs-io/babylon/pull/371) Do not prune BTC
reward tracker structures at the slash of finality provider.

## v1.0.0-rc.1

### Improvements

- [#306](https://github.com/babylonlabs-io/babylon/pull/306) feat: improve BTC reward distribution with
virtual block periods for each finality provider that has delegations and reward tracker structures.
- [#338](https://github.com/babylonlabs-io/babylon/pull/338) Add print BIP-340 in
`debug pubkey-raw` subcommand
- [#316](https://github.com/babylonlabs-io/babylon/pull/316) Add testnet upgrade data
- [#326](https://github.com/babylonlabs-io/babylon/pull/326) docs: btcstaking:
Update btcstaking module docs to include EOI
- [#348](https://github.com/babylonlabs-io/babylon/pull/348) refactory `PrivateSigner`
and module account vars in appparams
- [#351](https://github.com/babylonlabs-io/babylon/pull/351) docs: Add state
transition docs.
- [#358](https://github.com/babylonlabs-io/babylon/pull/358) Remove unused deps in `.proto` files
- [#364](https://github.com/babylonlabs-io/babylon/pull/364) Add testnet upgrade data

### Bug fixes

- [#324](https://github.com/babylonlabs-io/babylon/pull/324) Fix decrementing
jailed fp counter
- [#352](https://github.com/babylonlabs-io/babylon/pull/352) Fix: withdrawal cli
for rewards

### State Machine Breaking

- [#341](https://github.com/babylonlabs-io/babylon/pull/341) Select parameters
for pre-approval flow based on BTC LC tip height
- [#360](https://github.com/babylonlabs-io/babylon/pull/360) Refactor rewarding
- [#365](https://github.com/babylonlabs-io/babylon/pull/365) Reject outdated finality votes

## v0.18.2

### Bug fixes

- [#342](https://github.com/babylonlabs-io/babylon/pull/342) Fix non-determinism while jailing

## v0.18.1

- [#328](https://github.com/babylonlabs-io/babylon/pull/328) Fix btc activation height validation in genesis

## v0.18.0

### Improvements

- [#309](https://github.com/babylonlabs-io/babylon/pull/309) feat(adr-036): custom withdrawal address
- [#305](https://github.com/babylonlabs-io/babylon/pull/305) chore: add more error logs to `VerifyInclusionProofAndGetHeight`
- [#304](https://github.com/babylonlabs-io/babylon/pull/304) Add highest voted height to finality provider
- [#314](https://github.com/babylonlabs-io/babylon/pull/314) Require exact unbonding time in delegation
- [#317](https://github.com/babylonlabs-io/babylon/pull/317) Enforce that EOI
delegations using correct parameters version

### State Machine Breaking

- [#310](https://github.com/babylonlabs-io/babylon/pull/310) implement adr-37 -
making params valid for btc light client ranges

### Bug fixes

- [#318](https://github.com/babylonlabs-io/babylon/pull/318) Fix BTC delegation status check
to relay on UnbondingTime in delegation

## v0.17.2

### Improvements

- [#311](https://github.com/babylonlabs-io/babylon/pull/311) Enforce version 2
for unbonding transactions

## v0.17.1

### Bug fixes

- [#289](https://github.com/babylonlabs-io/babylon/pull/289) hotfix: Invalid minUnbondingTime for verifying inclusion proof

## v0.17.0

### State Breaking

- [278](https://github.com/babylonlabs-io/babylon/pull/278) Allow unbonding time to be min unbonding value

### Improvements

- [#264](https://github.com/babylonlabs-io/babylon/pull/264) bump docker workflow
version to 0.10.2, fix some Dockerfile issues
- [#284](https://github.com/babylonlabs-io/babylon/pull/284) Update cosmos sdk math dependency
- [#285](https://github.com/babylonlabs-io/babylon/pull/285) Update cometbft dependency
version

### Bug fixes

- [#270](https://github.com/babylonlabs-io/babylon/pull/270) Validate there is only
one finality provider key in the staking request
- [#270](https://github.com/babylonlabs-io/babylon/pull/277) Panic due to possible
nil params response

## v0.16.1

### API Breaking

- [#273](https://github.com/babylonlabs-io/babylon/pull/273) Add full staking tx to BTC delegation creation event

## v0.16.0

### Improvements

* [#242](https://github.com/babylonlabs-io/babylon/pull/242) Add
ResumeFinalityProposal and handler
* [#258](https://github.com/babylonlabs-io/babylon/pull/258) fix go releaser
and trigger by github action
* [#252](https://github.com/babylonlabs-io/babylon/pull/252) Fix
flunky TestValidateParsedMessageAgainstTheParams
* [#229](https://github.com/babylonlabs-io/babylon/pull/229) Remove babylond
e2e before upgrade
* [#250](https://github.com/babylonlabs-io/babylon/pull/250) Add tests for
unbonding value mismatch
* [#249](https://github.com/babylonlabs-io/babylon/pull/249) Add logs to checking
unbonding output
* [#253](https://github.com/babylonlabs-io/babylon/pull/253) Upgrade cometbft dependency
* [#256](https://github.com/babylonlabs-io/babylon/pull/256) Removes retry library
from core Babylon repository
* [#257](https://github.com/babylonlabs-io/babylon/pull/257) Fix error handling
in checkpointing module
* [#262](https://github.com/babylonlabs-io/babylon/pull/262) Upgrade wasmd, relayer dependencies

### State Machine Breaking

* [#260](https://github.com/babylonlabs-io/babylon/pull/260) Finish tokenomics
implementation
* [#254](https://github.com/babylonlabs-io/babylon/pull/254) Avoid constant
bech-32 decoding in power table
* [#265](https://github.com/babylonlabs-io/babylon/pull/265) Add allow list for staking txs

## v0.15.0

### State Machine Breaking

* [#211](https://github.com/babylonlabs-io/babylon/pull/211) Babylon inflation module
* [#217](https://github.com/babylonlabs-io/babylon/pull/217) Move voting power table to finality module

### Improvements

* [#235](https://github.com/babylonlabs-io/babylon/pull/235) Change default values
for iavl cache when using `testnet` command

### API Breaking

* [238](https://github.com/babylonlabs-io/babylon/pull/238) Add additional data
to delegation creation event

## v0.14.1

### API Breaking

* [#228](https://github.com/babylonlabs-io/babylon/pull/228) Add inclusion height to early unbonding event

### State Machine Breaking

* [#218](https://github.com/babylonlabs-io/babylon/pull/218) Fix removing voting
power during expiry

## v0.14.0

### State Machine Breaking

* [#224](https://github.com/babylonlabs-io/babylon/pull/224) Make injected checkpoint a standard tx
* [#207](https://github.com/babylonlabs-io/babylon/pull/207) Rename total voting power
to total bonded sat
* [#204](https://github.com/babylonlabs-io/babylon/pull/204) Add babylon finality
activation block height to start processing finality messages in `x/finality` params.
* [#215](https://github.com/babylonlabs-io/babylon/pull/215) Implement ADR-29
generalized unbonding handler

### Improvements

* [#213](https://github.com/babylonlabs-io/babylon/pull/213) Bump wasmd and re-enable static linking
* [#210](https://github.com/babylonlabs-io/babylon/pull/210) Parameterize finality parameters in prepare-genesis cmd

## v0.13.0

### API Breaking

* [#194](https://github.com/babylonlabs-io/babylon/pull/194) Adjusted handling of `FinalityProviderSigningInfo` in finality keeper queries to improve API security.
  * Modified `QuerySigningInfosResponse` to remove direct exposure of sensitive fields.
  * Updated related tests in `x/finality/keeper/grpc_query_test.go`.
* [#200](https://github.com/babylonlabs-io/babylon/pull/200) Adjusted handling of `Gauge` in incentive keeper queries to improve API security.
* [#201](https://github.com/babylonlabs-io/babylon/pull/201) Adjusted handling of `ValidatorWithBlsKey` in checkpoint keeper queries to improve API security.
* [#202](https://github.com/babylonlabs-io/babylon/pull/202) Adjusted handling of `FinalityProviderWithMeta` in btcstaking keeper queries to improve API security.
* [#203](https://github.com/babylonlabs-io/babylon/pull/203) Adjusted handling of `RewardGauge` in incentive keeper queries to improve API security.
* [#208](https://github.com/babylonlabs-io/babylon/pull/208) Adjusted handling of `Evidence` in finality keeper queries to improve API security.

### State Machine Breaking

* [#181](https://github.com/babylonlabs-io/babylon/pull/181) Modify BTC heights
  and depths to be of uint32 type instead of uint64.

### Bug fixes

* [#197](https://github.com/babylonlabs-io/babylon/pull/197) Fix `BTCDelgationResponse` missing `staking_time`
* [#193](https://github.com/babylonlabs-io/babylon/pull/193) Fix witness construction of slashing tx
* [#154](https://github.com/babylonlabs-io/babylon/pull/154) Fix "edit-finality-provider" cmd argument index
* [#186](https://github.com/babylonlabs-io/babylon/pull/186) Do not panic on `nil`
Proof when handling finality votes

### Improvements

* [#188](https://github.com/babylonlabs-io/babylon/pull/188) Simplify logic of FP set rotation
* [#169](https://github.com/babylonlabs-io/babylon/pull/169) Improve external events format and update events doc
* [#148](https://github.com/babylonlabs-io/babylon/pull/148) Add block results query

### Misc Improvements

* [#170](https://github.com/babylonlabs-io/babylon/pull/170) Go releaser setup
* [#168](https://github.com/babylonlabs-io/babylon/pull/168) Remove devdoc from
  Makefile and remove unnecessary gin replace.
* [#184](https://github.com/babylonlabs-io/babylon/pull/184) Remove localnet
  setup as it provides no additional testing value.

## v0.12.1

### Bug fixes

* [#180](https://github.com/babylonlabs-io/babylon/pull/180) Non-determinism in
  sorting finality providers in the voting power table

### Improvements

* [#169](https://github.com/babylonlabs-io/babylon/pull/169) Improve external events format and update events doc

### State Machine Breaking

* [#185](https://github.com/babylonlabs-io/babylon/pull/185) Check that
unbonding / slashing transactions are standard

## v0.12.0

### State Machine Breaking

* [#132](https://github.com/babylonlabs-io/babylon/pull/132) Add CosmWasm parameters
update during v1 upgrade handler.
* [#142](https://github.com/babylonlabs-io/babylon/pull/142) Remove signed finality providers
insert from the v1 upgrade handler.

### Improvements

* [#151](https://github.com/babylonlabs-io/babylon/pull/151) Improve IBC transfer e2e test
* [#130](https://github.com/babylonlabs-io/babylon/pull/130) Fix bugs in the
transaction fee refunding mechanism for covenant signatures and finality signatures
* [#125](https://github.com/babylonlabs-io/babylon/pull/125) Implement ADR-028 and
refund transaction fee for certain transactions from protocol stakeholders
* [#137](https://github.com/babylonlabs-io/babylon/pull/137) Adapt tests to the
pre-approval flow.
* [#138](https://github.com/babylonlabs-io/babylon/pull/138) Intercept staking module
messages inside `authz.MsgExec`.
* [#146](https://github.com/babylonlabs-io/babylon/pull/146) Add property status as a filter
to BTC delegations rest request `QueryBTCDelegationsRequest`.
* [#144](https://github.com/babylonlabs-io/babylon/pull/144) Add new finality provider events
* [#131](https://github.com/babylonlabs-io/babylon/pull/131) Add new staking events
* [#113](https://github.com/babylonlabs-io/babylon/pull/113) Add multibuild binary
for upgrade handler `testnet` and `mainnet`.

### Bug Fixes
* [#141](https://github.com/babylonlabs-io/babylon/pull/141) Generate voting
power events only once when reaching covenant committee quorum
* [#140](https://github.com/babylonlabs-io/babylon/pull/140) Removed `unbonding`
and add `verified` to delegation status parse `NewBTCDelegationStatusFromString`.

## v0.11.0

### State Machine Breaking

* [#107](https://github.com/babylonlabs-io/babylon/pull/107) Implement ADR-027 and
enable in-protocol minimum gas price
* [#103](https://github.com/babylonlabs-io/babylon/pull/103) Add token distribution
to upgrade handler and rename `signet-launch` to `v1`
* [#55](https://github.com/babylonlabs-io/babylon/pull/55) Remove `x/zoneconcierge`
module
* [#117](https://github.com/babylonlabs-io/babylon/pull/117) Add support for
pre-approval flow (ADR-026)

### Bug fixes

### Misc Improvements

* [#106](https://github.com/babylonlabs-io/babylon/pull/106) Add CLI command for
  querying signing info of finality providers.

## v0.10.1

### Bug Fixes

* [#91](https://github.com/babylonlabs-io/babylon/pull/91) fix testnet command
by add ibc default gen state and min gas price specification of `1ubbn`
* [#93](https://github.com/babylonlabs-io/babylon/pull/93) fix genesis epoch
  initialization.

## v0.10.0

### State Machine Breaking

* [#80](https://github.com/babylonlabs-io/babylon/pull/80) Implement ADR-25 and
enable jailing/unjailing finality providers
* [#45](https://github.com/babylonlabs-io/babylon/pull/45) Implement ADR-23 and improve
BTC staking parameters
* [#51](https://github.com/babylonlabs-io/babylon/pull/51) Implement ADR-24 and
enable timestamping of the public randomness committed by finality providers
* [#32](https://github.com/babylonlabs-io/babylon/pull/32) Replace `chain-id`
with `client-id` to identify consumer chains in `zoneconcierge` module
* [#35](https://github.com/babylonlabs-io/babylon/pull/35) Add upgrade that
processes `MsgCreateFinalityProvider` message during upgrade execution
* [#4](https://github.com/babylonlabs-io/babylon/pull/4) Add upgrade that
Insert BTC headers into `btclightclient` module state during upgrade execution

### Misc Improvements

* [#84](https://github.com/babylonlabs-io/babylon/pull/84) Add `unjail-finality-provider`
cmd to `finality` module CLI.

## v0.9.3

## v0.9.2

### Improvements

* [#19](https://github.com/babylonlabs-io/babylon/pull/19) Modify Babylon node
LICENSE.md file

## v0.9.1

### Bug Fixes

* [#13](https://github.com/babylonlabs-io/babylon/pull/13) fix shadowing bug in
Babylon retry library

## v0.9.0

Initial Release!