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Bucky/v0.27.0 (#2950)
* update changelog * changelog, upgrading, version
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Ethan Buchman
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CHANGELOG.md
62
CHANGELOG.md
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# Changelog
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## v0.27.0
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*November 29th, 2018*
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Special thanks to external contributors on this release:
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@danil-lashin, @srmo
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Special thanks to @dlguddus for discovering a [major
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issue](https://github.com/tendermint/tendermint/issues/2718#issuecomment-440888677)
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in the proposer selection algorithm.
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Friendly reminder, we have a [bug bounty
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program](https://hackerone.com/tendermint).
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This release is primarily about fixes to the proposer selection algorithm
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in preparation for the [Cosmos Game of
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Stakes](https://blog.cosmos.network/the-game-of-stakes-is-open-for-registration-83a404746ee6).
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It also makes use of the `ConsensusParams.Validator.PubKeyTypes` to restrict the
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key types that can be used by validators.
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### BREAKING CHANGES:
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* CLI/RPC/Config
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- [rpc] [\#2932](https://github.com/tendermint/tendermint/issues/2932) Rename `accum` to `proposer_priority`
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* Go API
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- [db] [\#2913](https://github.com/tendermint/tendermint/pull/2913)
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ReverseIterator API change: start < end, and end is exclusive.
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- [types] [\#2932](https://github.com/tendermint/tendermint/issues/2932) Rename `Validator.Accum` to `Validator.ProposerPriority`
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* Blockchain Protocol
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- [state] [\#2714](https://github.com/tendermint/tendermint/issues/2714) Validators can now only use pubkeys allowed within
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ConsensusParams.Validator.PubKeyTypes
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* P2P Protocol
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- [consensus] [\#2871](https://github.com/tendermint/tendermint/issues/2871)
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Remove *ProposalHeartbeat* message as it serves no real purpose (@srmo)
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- [state] Fixes for proposer selection:
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- [\#2785](https://github.com/tendermint/tendermint/issues/2785) Accum for new validators is `-1.125*totalVotingPower` instead of 0
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- [\#2941](https://github.com/tendermint/tendermint/issues/2941) val.Accum is preserved during ValidatorSet.Update to avoid being
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reset to 0
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### IMPROVEMENTS:
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- [state] [\#2929](https://github.com/tendermint/tendermint/issues/2929) Minor refactor of updateState logic (@danil-lashin)
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### BUG FIXES:
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- [types] [\#2938](https://github.com/tendermint/tendermint/issues/2938) Fix regression in v0.26.4 where we panic on empty
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genDoc.Validators
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- [state] [\#2785](https://github.com/tendermint/tendermint/issues/2785) Fix accum for new validators to be `-1.125*totalVotingPower`
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instead of 0, forcing them to wait before becoming the proposer. Also:
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- do not batch clip
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- keep accums averaged near 0
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- [types] [\#2941](https://github.com/tendermint/tendermint/issues/2941) Preserve val.Accum during ValidatorSet.Update to avoid it being
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reset to 0 every time a validator is updated
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## v0.26.4
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*November 27th, 2018*
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Special thanks to external contributors on this release:
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ackratos, goolAdapter, james-ray, joe-bowman, kostko,
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nagarajmanjunath, tomtau
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@ackratos, @goolAdapter, @james-ray, @joe-bowman, @kostko,
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@nagarajmanjunath, @tomtau
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Friendly reminder, we have a [bug bounty
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program](https://hackerone.com/tendermint).
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@ -1,48 +1,23 @@
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# Pending
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## v0.27.0
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## v0.27.1
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*TBD*
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Special thanks to external contributors on this release:
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Friendly reminder, we have a [bug bounty
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program](https://hackerone.com/tendermint).
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### BREAKING CHANGES:
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* CLI/RPC/Config
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- [rpc] \#2932 Rename `accum` to `proposer_priority`
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* Apps
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* Go API
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- [db] [\#2913](https://github.com/tendermint/tendermint/pull/2913)
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ReverseIterator API change -- start < end, and end is exclusive.
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- [types] \#2932 Rename `Validator.Accum` to `Validator.ProposerPriority`
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* Blockchain Protocol
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- [state] \#2714 Validators can now only use pubkeys allowed within
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ConsensusParams.ValidatorParams
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* P2P Protocol
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- [consensus] [\#2871](https://github.com/tendermint/tendermint/issues/2871)
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Remove *ProposalHeartbeat* message as it serves no real purpose
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- [state] Fixes for proposer selection:
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- \#2785 Accum for new validators is `-1.125*totalVotingPower` instead of 0
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- \#2941 val.Accum is preserved during ValidatorSet.Update to avoid being
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reset to 0
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### FEATURES:
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### IMPROVEMENTS:
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### BUG FIXES:
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- [types] \#2938 Fix regression in v0.26.4 where we panic on empty
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genDoc.Validators
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- [state] \#2785 Fix accum for new validators to be `-1.125*totalVotingPower`
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instead of 0, forcing them to wait before becoming the proposer. Also:
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- do not batch clip
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- keep accums averaged near 0
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- [types] \#2941 Preserve val.Accum during ValidatorSet.Update to avoid it being
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reset to 0 every time a validator is updated
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29
UPGRADING.md
29
UPGRADING.md
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This guide provides steps to be followed when you upgrade your applications to
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a newer version of Tendermint Core.
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## v0.27.0
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### Go API Changes
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#### libs/db
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The ReverseIterator API has changed the meaning of `start` and `end`.
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Before, iteration was from `start` to `end`, where
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`start > end`. Now, iteration is from `end` to `start`, where `start < end`.
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The iterator also excludes `end`. This change allows a simplified and more
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intuitive logic, aligning the semantic meaning of `start` and `end` in the
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`Iterator` and `ReverseIterator`.
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### Applications
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This release enforces a new consensus parameter, the
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ValidatorParams.PubKeyTypes. Applications must ensure that they only return
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validator updates with the allowed PubKeyTypes. If a validator update includes a
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pubkey type that is not included in the ConsensusParams.Validator.PubKeyTypes,
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block execution will fail and the consensus will halt.
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By default, only Ed25519 pubkeys may be used for validators. Enabling
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Secp256k1 requires explicit modification of the ConsensusParams.
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Please update your application accordingly (ie. restrict validators to only be
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able to use Ed25519 keys, or explicitly add additional key types to the genesis
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file).
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## v0.26.0
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New 0.26.0 release contains a lot of changes to core data types and protocols. It is not
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@ -67,7 +94,7 @@ For more information, see:
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### Go API Changes
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#### crypto.merkle
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#### crypto/merkle
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The `merkle.Hasher` interface was removed. Functions which used to take `Hasher`
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now simply take `[]byte`. This means that any objects being Merklized should be
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@ -18,7 +18,7 @@ const (
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// TMCoreSemVer is the current version of Tendermint Core.
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// It's the Semantic Version of the software.
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// Must be a string because scripts like dist.sh read this file.
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TMCoreSemVer = "0.26.4"
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TMCoreSemVer = "0.27.0"
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// ABCISemVer is the semantic version of the ABCI library
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ABCISemVer = "0.15.0"
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@ -36,10 +36,10 @@ func (p Protocol) Uint64() uint64 {
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var (
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// P2PProtocol versions all p2p behaviour and msgs.
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P2PProtocol Protocol = 4
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P2PProtocol Protocol = 5
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// BlockProtocol versions all block data structures and processing.
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BlockProtocol Protocol = 7
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BlockProtocol Protocol = 8
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)
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//------------------------------------------------------------------------
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