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tendermint/CHANGELOG_PENDING.md

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CHANGELOG: update to reflect 0.33.5 (#4915) Final step of a point release.
5 years ago
add support for block pruning via ABCI Commit response (#4588) * Added BlockStore.DeleteBlock() * Added initial block pruner prototype * wip * Added BlockStore.PruneBlocks() * Added consensus setting for block pruning * Added BlockStore base * Error on replay if base does not have blocks * Handle missing blocks when sending VoteSetMaj23Message * Error message tweak * Properly update blockstore state * Error message fix again * blockchain: ignore peer missing blocks * Added FIXME * Added test for block replay with truncated history * Handle peer base in blockchain reactor * Improved replay error handling * Added tests for Store.PruneBlocks() * Fix non-RPC handling of truncated block history * Panic on missing block meta in needProofBlock() * Updated changelog * Handle truncated block history in RPC layer * Added info about earliest block in /status RPC * Reorder height and base in blockchain reactor messages * Updated changelog * Fix tests * Appease linter * Minor review fixes * Non-empty BlockStores should always have base > 0 * Update code to assume base > 0 invariant * Added blockstore tests for pruning to 0 * Make sure we don't prune below the current base * Added BlockStore.Size() * config: added retain_blocks recommendations * Update v1 blockchain reactor to handle blockstore base * Added state database pruning * Propagate errors on missing validator sets * Comment tweaks * Improved error message Co-Authored-By: Anton Kaliaev <anton.kalyaev@gmail.com> * use ABCI field ResponseCommit.retain_height instead of retain-blocks config option * remove State.RetainHeight, return value instead * fix minor issues * rename pruneHeights() to pruneBlocks() * noop to fix GitHub borkage Co-authored-by: Anton Kaliaev <anton.kalyaev@gmail.com>
5 years ago
libs/common: remove heap.go (#3780) * Remove file heap.go - cmn.Heap is not being used in cosmos-sdk, iavl nor tendermint repo. Signed-off-by: Marko Baricevic <marbar3778@yahoo.com> * changelog entry * Update CHANGELOG_PENDING.md closes #2432
5 years ago
node: refactor privValidator ext client code & tests (#2895) * update ConsensusState#OnStop comment * consensus: set logger for WAL in tests * refactor privValidator client code and tests follow-up on https://github.com/tendermint/tendermint/pull/2866
6 years ago
changelog and version (#3750) * changelog and version * Add section on ABCI changes * Update ABCI upgrade section to include events examples * update upgrading * more upgrading and changelog * update changelog from pending * refer to #rpc_changes * minor word changes
5 years ago
​
example/kvstore: return ABCI query height (#4509) * example/kvstore: return ABCI query height * CHANGELOG: added PR link * Updated tests
5 years ago
changelog and version (#3750) * changelog and version * Add section on ABCI changes * Update ABCI upgrade section to include events examples * update upgrading * more upgrading and changelog * update changelog from pending * refer to #rpc_changes * minor word changes
5 years ago
changelog, versionbump (#2850)
6 years ago
​
libs/common: remove heap.go (#3780) * Remove file heap.go - cmn.Heap is not being used in cosmos-sdk, iavl nor tendermint repo. Signed-off-by: Marko Baricevic <marbar3778@yahoo.com> * changelog entry * Update CHANGELOG_PENDING.md closes #2432
5 years ago
Remvoe errors package from libs (#4157) *libs/common/errors: remove package - remove errors file from cmn pkg - use errorf instead of wrap in async function - add changelog entry - closes #3862
5 years ago
evidence: remove pubkey from duplicate vote evidence this pr brings over the removal of pubkey from duplicatevote evidence from proto-breakage ref #4580
5 years ago
types: sort validators by voting power thus enabling faster commit verification assuming non uniform distribution of power. Closes #2478 spec: https://github.com/tendermint/spec/pull/91
5 years ago
blockchain: proto migration (#4969) ## Description migration of blockchain reactors to protobuf Closes: #XXX
5 years ago
ints: stricter numbers (#4939)
5 years ago
​
​
​
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types: migrate params to protobuf (#4962)
5 years ago
ints: stricter numbers (#4939)
5 years ago
​
​
keys: change to []bytes (#4950)
5 years ago
crypto: removal of multisig (#4988) ## Description deprecation & removal of multisig. This key was only used in the sdk and now it has been added there Closes: #4715 Closes: #2163
5 years ago
​
crypto/merkle: remove simple prefix (#4989) ## Description This PR removes simple prefix from all types in the crypto/merkle directory. The two proto types `Proof` & `ProofOp` have been moved to the `proto/crypto/merkle` directory. proto messge `Proof` was renamed to `ProofOps` and `SimpleProof` message to `Proof`. Closes: #2755
5 years ago
​
​
​
​
​
crypto: remove key suffixes (#4941) ## Description - remove keyname suffix from keys Closes: #2228
5 years ago
​
​
​
​
​
​
​
light: rename lite2 to light & remove lite (#4946) This PR removes lite & renames lite2 to light throughout the repo Signed-off-by: Marko Baricevic <marbar3778@yahoo.com> Closes: #4944
5 years ago
rpc/core: return an error if `page=0` (#4947) * rpc/core: return an error if `page=0` Closes #4942 affected endpoints: - /validators - /tx_search * swagger: update doc for /unconfirmed_txs
5 years ago
state: proto migration (#4951)
5 years ago
​
evidence: json tags for DuplicateVoteEvidence (#4959) ## Description Add json tags to duplicate evidence Closes: #4958
5 years ago
p2p/pex: migrate to Protobuf (#4973) ## Description migrate p2p/pex to protobuf Closes: #XXX
5 years ago
light: migrate to proto (#4964)
5 years ago
store: proto migration (#4974) ## Description migrate store to protobuf Closes: #XXX
5 years ago
​
migrate all JSON to new JSON encoder (#4975) Uses new JSON encoder in #4955 for all JSON. Branched off of #4968.
5 years ago
privval: migrate to protobuf (#4985)
5 years ago
​
evidence: migrate reactor to proto (#4949) ## Description migration of evidence reactor to proto Closes: #XXX
5 years ago
evidence: remove pubkey from duplicate vote evidence this pr brings over the removal of pubkey from duplicatevote evidence from proto-breakage ref #4580
5 years ago
libs/common: remove heap.go (#3780) * Remove file heap.go - cmn.Heap is not being used in cosmos-sdk, iavl nor tendermint repo. Signed-off-by: Marko Baricevic <marbar3778@yahoo.com> * changelog entry * Update CHANGELOG_PENDING.md closes #2432
5 years ago
​
add ABCI interface for state sync snapshots (#4704) Adds the ABCI interface for [state sync](https://github.com/tendermint/tendermint/issues/828) as outlined in [ADR-053](https://github.com/tendermint/tendermint/blob/master/docs/architecture/adr-053-state-sync-prototype.md), and bumps ABCIVersion to `0.17.0`. The interface adds a new ABCI connection which Tendermint can use to query and load snapshots from the app (for serving snapshots to other nodes), and to offer and apply snapshots to the app (for state syncing a local node from peers). Split out from the original PR in #4645, state sync reactor will be submitted as a separate PR. The interface is implemented by the Cosmos SDK in https://github.com/cosmos/cosmos-sdk/pull/5803.
5 years ago
crypto/merkle: remove simple prefix (#4989) ## Description This PR removes simple prefix from all types in the crypto/merkle directory. The two proto types `Proof` & `ProofOp` have been moved to the `proto/crypto/merkle` directory. proto messge `Proof` was renamed to `ProofOps` and `SimpleProof` message to `Proof`. Closes: #2755
5 years ago
add ABCI interface for state sync snapshots (#4704) Adds the ABCI interface for [state sync](https://github.com/tendermint/tendermint/issues/828) as outlined in [ADR-053](https://github.com/tendermint/tendermint/blob/master/docs/architecture/adr-053-state-sync-prototype.md), and bumps ABCIVersion to `0.17.0`. The interface adds a new ABCI connection which Tendermint can use to query and load snapshots from the app (for serving snapshots to other nodes), and to offer and apply snapshots to the app (for state syncing a local node from peers). Split out from the original PR in #4645, state sync reactor will be submitted as a separate PR. The interface is implemented by the Cosmos SDK in https://github.com/cosmos/cosmos-sdk/pull/5803.
5 years ago
add support for block pruning via ABCI Commit response (#4588) * Added BlockStore.DeleteBlock() * Added initial block pruner prototype * wip * Added BlockStore.PruneBlocks() * Added consensus setting for block pruning * Added BlockStore base * Error on replay if base does not have blocks * Handle missing blocks when sending VoteSetMaj23Message * Error message tweak * Properly update blockstore state * Error message fix again * blockchain: ignore peer missing blocks * Added FIXME * Added test for block replay with truncated history * Handle peer base in blockchain reactor * Improved replay error handling * Added tests for Store.PruneBlocks() * Fix non-RPC handling of truncated block history * Panic on missing block meta in needProofBlock() * Updated changelog * Handle truncated block history in RPC layer * Added info about earliest block in /status RPC * Reorder height and base in blockchain reactor messages * Updated changelog * Fix tests * Appease linter * Minor review fixes * Non-empty BlockStores should always have base > 0 * Update code to assume base > 0 invariant * Added blockstore tests for pruning to 0 * Make sure we don't prune below the current base * Added BlockStore.Size() * config: added retain_blocks recommendations * Update v1 blockchain reactor to handle blockstore base * Added state database pruning * Propagate errors on missing validator sets * Comment tweaks * Improved error message Co-Authored-By: Anton Kaliaev <anton.kalyaev@gmail.com> * use ABCI field ResponseCommit.retain_height instead of retain-blocks config option * remove State.RetainHeight, return value instead * fix minor issues * rename pruneHeights() to pruneBlocks() * noop to fix GitHub borkage Co-authored-by: Anton Kaliaev <anton.kalyaev@gmail.com>
5 years ago
​
libs/common: remove heap.go (#3780) * Remove file heap.go - cmn.Heap is not being used in cosmos-sdk, iavl nor tendermint repo. Signed-off-by: Marko Baricevic <marbar3778@yahoo.com> * changelog entry * Update CHANGELOG_PENDING.md closes #2432
5 years ago
Remvoe errors package from libs (#4157) *libs/common/errors: remove package - remove errors file from cmn pkg - use errorf instead of wrap in async function - add changelog entry - closes #3862
5 years ago
privval: remove deprecated `OldFilePV` The old format was deprecated in v0.28. It's time we remove it.
5 years ago
types: simplify VerifyCommitTrusting Closes #4783 It looks like we're validating Commit twice. Also, height and blockID params were coming from the commit, so no need to pass them separately.
5 years ago
libs: remove bech32 ## Description bech32 is only used in the sdk. I moved Bech32 to the sdk and we can remove it here. Don't think this needs to go into a minor release Closes: #XXX
5 years ago
[block#LastResultsHash] add Events + GasWanted/Used (#4845) Closes #1007
5 years ago
​
​
​
crypto: remove SimpleHashFromMap() and SimpleProofsFromMap() Fixes #2593 @alexanderbez This is used in a single place in the SDK, how upset are you about removing it? ______ For contributor use: - [x] ~Wrote tests~ - [x] Updated CHANGELOG_PENDING.md - [x] Linked to Github issue with discussion and accepted design OR link to spec that describes this work. - [x] Updated relevant documentation (`docs/`) and code comments - [x] Re-reviewed `Files changed` in the Github PR explorer - [x] Applied Appropriate Labels
5 years ago
privval: remove deprecated `OldFilePV` The old format was deprecated in v0.28. It's time we remove it.
5 years ago
types: sort validators by voting power thus enabling faster commit verification assuming non uniform distribution of power. Closes #2478 spec: https://github.com/tendermint/spec/pull/91
5 years ago
evidence: cap evidence to an absolute number (#4780) The number of evidence that can be committed in a single block is capped by a new evidence parameter called MaxNum
5 years ago
​
lite2: compare header with witnesses in parallel (#4935) Closes #4801
5 years ago
statesync: use Protobuf instead of Amino for p2p traffic (#4943) ## Description Closes: #XXX
5 years ago
[block#LastResultsHash] add Events + GasWanted/Used (#4845) Closes #1007
5 years ago
types: sort validators by voting power thus enabling faster commit verification assuming non uniform distribution of power. Closes #2478 spec: https://github.com/tendermint/spec/pull/91
5 years ago
changelog, versionbump (#2850)
6 years ago
tm-cmn to tm-db (#3850) * tm-cmn to tm-db * go.mod changes * go.mod changes * more go.mod * fix tm-db * ci fix, pending change
5 years ago
add state sync reactor (#4705) Fixes #828. Adds state sync, as outlined in [ADR-053](https://github.com/tendermint/tendermint/blob/master/docs/architecture/adr-053-state-sync-prototype.md). See related PRs in Cosmos SDK (https://github.com/cosmos/cosmos-sdk/pull/5803) and Gaia (https://github.com/cosmos/gaia/pull/327). This is split out of the previous PR #4645, and branched off of the ABCI interface in #4704. * Adds a new P2P reactor which exchanges snapshots with peers, and bootstraps an empty local node from remote snapshots when requested. * Adds a new configuration section `[statesync]` that enables state sync and configures the light client. Also enables `statesync:info` logging by default. * Integrates state sync into node startup. Does not support the v2 blockchain reactor, since it needs some reorganization to defer startup.
5 years ago
evidence: handling evidence from light client(s) (#4532) Closes: #4530 This PR contains logic for both submitting an evidence by the light client (lite2 package) and receiving it on the Tendermint side (/broadcast_evidence RPC and/or EvidenceReactor#Receive). Upon receiving the ConflictingHeadersEvidence (introduced by this PR), the Tendermint validates it, then breaks it down into smaller pieces (DuplicateVoteEvidence, LunaticValidatorEvidence, PhantomValidatorEvidence, PotentialAmnesiaEvidence). Afterwards, each piece of evidence is verified against the state of the full node and added to the pool, from which it's reaped upon block creation. * rpc/client: do not pass height param if height ptr is nil * rpc/core: validate incoming evidence! * only accept ConflictingHeadersEvidence if one of the headers is committed from this full node's perspective This simplifies the code. Plus, if there are multiple forks, we'll likely to receive multiple ConflictingHeadersEvidence anyway. * swap CommitSig with Vote in LunaticValidatorEvidence Vote is needed to validate signature * no need to embed client http is a provider and should not be used as a client
5 years ago
light: implement validate basic (#4916) run a validate basic on inbound validator sets and headers before further processing them
5 years ago
rpc: add BlockByHash to Client (#4923) Ethermint currently has to maintain a map height-> block hash on the store (see here) as it needs to expose the eth_getBlockByHash JSON-RPC query for Web3 compatibility. This query is currently not supported by the tendermint RPC client.
5 years ago
rpc: support EXISTS operator in /tx_search query (#4979) Closes #4763 * check for Error after for loop ends so we don't silently ignore errors, which would lead to clients getting incomplete results Refs https://github.com/tendermint/tendermint/pull/4979/files#r436511572
5 years ago
p2p: expose SaveAs on NodeKey (#4981) Closes #4681
5 years ago
light: added more tests for pruning, initialization and bisection (#4978)
5 years ago
rpc: add codespace to ResultBroadcastTx (#4611) Closes: #4606
5 years ago
update changelog pending and readme (#2725)
6 years ago
libs: Remove db from tendermint in favor of tendermint/tm-cmn (#3811) * Remove db from tendemrint in favor of tendermint/tm-cmn - remove db from `libs` - update dependancy, there have been no breaking changes in the updated deps - https://github.com/grpc/grpc-go/releases - https://github.com/golang/protobuf/releases Signed-off-by: Marko Baricevic <marbar3778@yahoo.com> * changelog add * gofmt * more gofmt
5 years ago
indexer: allow indexing an event at runtime (#4466) The PR added a new field `index` to event attribute, that will cause indexer service to index the event if set to true.
5 years ago
libs: remove kv (#4874) ## Description In https://github.com/tendermint/tendermint/pull/4466 a new type was created (EventAttribute) that replaced KV.Pair. This made the type Pair deadcode, this pr removes that type. I don't think a changelog entry is needed since it is not being used anymore. But will add a section to the upgrading.md to let users know that it was replaced Closes: #XXX
5 years ago
improve evidence db #4722 merged the existing store into pool, consolidated the three buckets into two, used block height as a marked for committed evidence, evidence list recovers on start up, improved error handling
5 years ago
state: export InitStateVersion This is useful for custom state sync `StateProvider` implementations that need to build new states for bootstrapping the node. It will also be useful when implementing other mechanisms to bootstrap nodes, e.g. #4642 and #3713.
5 years ago
p2p: return err on `signChallenge` (#4795) * remove panic & todo in secret_connection
5 years ago
evidence: prevent proposer from proposing duplicate pieces of evidence (#4839) prevent proposer from proposing duplicate pieces of evidence
5 years ago
types: create ValidateBasic() funcs for validator and validator set (#4905)
5 years ago
​
consensus: attempt to repair the WAL file on data corruption (#4682) Closes: #4578 Co-authored-by: Anton Kaliaev <anton.kalyaev@gmail.com>
5 years ago
​
light: implement validate basic (#4916) run a validate basic on inbound validator sets and headers before further processing them
5 years ago
​
​
indexer: allow indexing an event at runtime (#4466) The PR added a new field `index` to event attribute, that will cause indexer service to index the event if set to true.
5 years ago
update changelog pending and readme (#2725)
6 years ago
lite: fix HTTP provider error handling Fixes #4739, kind of. See #4740 for the proper fix. --- For contributor use: - [x] Wrote tests - [x] Updated CHANGELOG_PENDING.md - [x] Linked to Github issue with discussion and accepted design OR link to spec that describes this work. - [x] Updated relevant documentation (`docs/`) and code comments - [x] Re-reviewed `Files changed` in the Github PR explorer - [x] Applied Appropriate Labels
5 years ago
only retrieve pubkey once for all validators (partially fixes #4865) (#4895) ## Description in consensus/state.go, when calulating metrics, retrieve address (ergo, pubkey) once prior to iterating over validatorset to ensure we do not make excessive calls to signer. Partially closes: #4865
5 years ago
consensus: stricter on LastCommitRound check (#4970) LastCommitRound should always be >= 0 for heights > 1. In State.updateToState, last precommit is computed only when round greater than -1 and has votes. But "LastCommit" is always updated regardless of the condition. If there's no last precommit, "LastCommit" is set to (*types.VoteSet)(nil). That's why "LastCommit" can be -1 for heights > 1. To fix it, only update State.RoundState.LastCommit when there is last precommit. Fixes #2737 Co-authored-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
5 years ago
blockchain/v2: correctly set block store base in status responses (#4971) See: https://github.com/tendermint/tendermint/pull/4969#pullrequestreview-425298225
5 years ago
 
  1. ## v0.33.6

  2. 

  3. \*\*
  4. 

  5. Special thanks to external contributors on this release:
  6. 

  7. Friendly reminder, we have a [bug bounty program](https://hackerone.com/tendermint).
  8. 

  9. ### BREAKING CHANGES:

  10. 

  11. - CLI/RPC/Config
  12. 

  13.   - [evidence] \#4725 Remove `Pubkey` from DuplicateVoteEvidence
  14.   - [rpc] [\#4792](https://github.com/tendermint/tendermint/pull/4792) `/validators` are now sorted by voting power (@melekes)
  15.   - [blockchain] \#4637 Transition blockchain reactor(s) to Protobuf encoding
  16.   - [types] \#4382  `SignedMsgType` has moved to a Protobuf enum types
  17.   - [types] \#4382 `Total` has been changed from a `int` to a `uint32`
  18.   - [types] \#4582 Vote: `ValidatorIndex` & `Round` are now int32
  19.   - [types] \#4582 Proposal: `POLRound` & `Round` are now int32
  20.   - [types] \#4582 Block: `Round` is now int32
  21.   - [types] \#4962 `ConsensusParams`, `BlockParams`, `EvidenceParams`, `ValidatorParams` & `HashedParams` are now Protobuf types
  22.   - [consensus] \#4582 RoundState: `Round`, `LockedRound` & `CommitRound` are now int32
  23.   - [consensus] \#4582 HeightVoteSet: `round` is now int32
  24.   - [privval] \#4582 `round` in private_validator_state.json is no longer a string in json it is now a number.
  25.   - [crypto] \#4940 All keys have become `[]byte` instead of `[<size>]byte`. The byte method no longer returns the marshaled value but just the `[]byte` form of the data.
  26.   - [crypto] \4988 Removal of key type multisig
  27.     - The key has been moved to the Cosmos-SDK (https://github.com/cosmos/cosmos-sdk/blob/master/crypto/types/multisig/multisignature.go)
  28.   - [crypto] \#4989 Remove `Simple` prefixes from `SimpleProof`, `SimpleValueOp` & `SimpleProofNode`. 
  29.       - `merkle.Proof` has been renamed to `ProofOps`.
  30.       - Protobuf messages `Proof` & `ProofOp` has been moved to `proto/crypto/merkle`
  31.       - `SimpleHashFromByteSlices` has been renamed to `HashFromByteSlices`
  32.       - `SimpleHashFromByteSlicesIterative` has been renamed to `HashFromByteSlicesIterative`
  33.       - `SimpleProofsFromByteSlices` has been renamed to `ProofsFromByteSlices`
  34.   - [crypto] \#4941 Remove suffixes from all keys.
  35.     - ed25519: type `PrivKeyEd25519` is now `PrivKey`
  36.     - ed25519: type `PubKeyEd25519` is now `PubKey`
  37.     - secp256k1: type`PrivKeySecp256k1` is now `PrivKey`
  38.     - secp256k1: type`PubKeySecp256k1` is now `PubKey`
  39.     - sr25519: type `PrivKeySr25519` is now `PrivKey`
  40.     - sr25519: type `PubKeySr25519` is now `PubKey`
  41.     - multisig: type `PubKeyMultisigThreshold` is now `PubKey`
  42.   - [light] \#4946 Rename `lite2` pkg to `light`, the lite cmd has also been renamed to `light`. Remove `lite` implementation.
  43.   - [rpc] \#4937 Return an error when `page` pagination param is 0 in `/validators`, `tx_search` (@melekes)
  44.   - [state] \#4679 `TxResult` is a Protobuf type defined in `abci` types directory
  45.   - [state] \#4679 `state` reactor migration to Protobuf encoding
  46.   - [evidence] \#4959 Add json tags to `DuplicateVoteEvidence`
  47.   - [p2p/pex] \#4973 `p2p/pex` reactor migration to Protobuf encoding
  48.   - [light] \#4964 `light` reactor migration to Protobuf encoding
  49.   - [store] \#4778 Transition store module to protobuf encoding
  50.     - `BlockStoreStateJSON` is now `BlockStoreState` and is encoded as binary in the database
  51.   - [rpc] \#4968 JSON encoding is now handled by `libs/json`, not Amino
  52.   - [types] \#4852 Vote & Proposal `SignBytes` is now func `VoteSignBytes` & `ProposalSignBytes`
  53.   - [privval] \#4985 `privval` reactor migration to Protobuf encoding
  54.   - [evidence] \#4949 `evidence` reactor migration to Protobuf encoding
  55. 

  56. - Apps
  57. 

  58.   - [abci] [\#4704](https://github.com/tendermint/tendermint/pull/4704) Add ABCI methods `ListSnapshots`, `LoadSnapshotChunk`, `OfferSnapshot`, and `ApplySnapshotChunk` for state sync snapshots. `ABCIVersion` bumped to 0.17.0.
  59.   - [abci] \#4989 `Proof` within `ResponseQuery` has been renamed to `ProofOps`
  60. 

  61. - P2P Protocol
  62. 

  63. - Go API
  64. 

  65.   - [crypto] [\#4721](https://github.com/tendermint/tendermint/pull/4721) Remove `SimpleHashFromMap()` and `SimpleProofsFromMap()` (@erikgrinaker)
  66.   - [types] \#4798 Simplify `VerifyCommitTrusting` func + remove extra validation (@melekes)
  67.   - [libs] \#4831 Remove `Bech32` pkg from Tendermint. This pkg now lives in the [cosmos-sdk](https://github.com/cosmos/cosmos-sdk/tree/4173ea5ebad906dd9b45325bed69b9c655504867/types/bech32)
  68.   - [rpc/client] \#4947 `Validators`, `TxSearch` `page`/`per_page` params become pointers (@melekes)
  69.     `UnconfirmedTxs` `limit` param is a pointer
  70.   - [types] \#4845 Remove `ABCIResult`
  71. 

  72. - Blockchain Protocol
  73. 

  74.   - [types] [\#4792](https://github.com/tendermint/tendermint/pull/4792) Sort validators by voting power to enable faster commit verification (@melekes)
  75.   - [evidence] [\#4780](https://github.com/tendermint/tendermint/pull/4780) Cap evidence to an absolute number (@cmwaters)
  76.     Add `max_num` to consensus evidence parameters (default: 50 items).
  77.   - [mempool] \#4940 Migrate mempool from amino binary encoding to Protobuf
  78.   - [statesync] \#4943 Migrate statesync reactor from amino binary encoding to Protobuf
  79.   - [state] \#4845 Include BeginBlock#Events, EndBlock#Events, DeliverTx#Events, GasWanted and GasUsed into `LastResultsHash` (@melekes)
  80. 

  81. ### FEATURES:

  82. 

  83. - [statesync] Add state sync support, where a new node can be rapidly bootstrapped by fetching state snapshots from peers instead of replaying blocks. See the `[statesync]` config section.
  84. - [evidence] [\#4532](https://github.com/tendermint/tendermint/pull/4532) Handle evidence from light clients (@melekes)
  85. - [light] [\#4532](https://github.com/tendermint/tendermint/pull/4532) Submit conflicting headers, if any, to a full node & all witnesses (@melekes)
  86. - [rpc] [\#4532](https://github.com/tendermint/tendermint/pull/4923) Support `BlockByHash` query (@fedekunze)
  87. - [rpc] \#4979 Support EXISTS operator in `/tx_search` query (@melekes)
  88. - [p2p] \#4981 Expose `SaveAs` func on NodeKey (@melekes)
  89. - [evidence] [#4821](https://github.com/tendermint/tendermint/pull/4821) Amnesia evidence can be detected, verified and committed (@cmwaters)
  90. 

  91. ### IMPROVEMENTS:

  92. 

  93. - [txindex] [\#4466](https://github.com/tendermint/tendermint/pull/4466) Allow to index an event at runtime (@favadi)
  94.   - `abci.EventAttribute` replaces `KV.Pair`
  95. - [evidence] [\#4722](https://github.com/tendermint/tendermint/pull/4722) Improved evidence db (@cmwaters)
  96. - [state] [\#4781](https://github.com/tendermint/tendermint/pull/4781) Export `InitStateVersion` for the initial state version (@erikgrinaker)
  97. - [p2p/conn] \#4795 Return err on `signChallenge()` instead of panic
  98. - [evidence] [\#4839](https://github.com/tendermint/tendermint/pull/4839) Reject duplicate evidence from being proposed (@cmwaters)
  99. - [evidence] [\#4892](https://github.com/tendermint/tendermint/pull/4892) Remove redundant header from phantom validator evidence (@cmwaters)
  100. - [types] [\#4905](https://github.com/tendermint/tendermint/pull/4905) Add ValidateBasic to validator and validator set (@cmwaters)
  101. - [consensus] [\#4578](https://github.com/tendermint/tendermint/issues/4578) Attempt to repair the consensus WAL file (`data/cs.wal/wal`) automatically in case of corruption (@alessio)
  102.   The original WAL file will be backed up to `data/cs.wal/wal.CORRUPTED`.
  103. - [light] [\#4935](https://github.com/tendermint/tendermint/pull/4935) Fetch and compare a new header with witnesses in parallel (@melekes)
  104. - [light] [\#4929](https://github.com/tendermint/tendermint/pull/4929) compare header w/ witnesses only when doing bisection (@melekes)
  105. - [light] [\#4916](https://github.com/tendermint/tendermint/pull/4916) validate basic for inbound validator sets and headers before further processing them (@cmwaters)
  106. 

  107. ### BUG FIXES:

  108. 

  109. - [consensus] [\#4895](https://github.com/tendermint/tendermint/pull/4895) Cache the address of the validator to reduce querying a remote KMS (@joe-bowman)
  110. - [consensus] \#4970 Stricter on `LastCommitRound` check (@cuonglm)
  111. - [blockchain/v2] Correctly set block store base in status responses (@erikgrinaker)