Release 3.2.0.0.0: Stacks 3.2 Hard Fork
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Jesse Wiley
Jul 24, 2025, 12:18:23 PMJul 24
to announce
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Hello,
Stacks core developers have released Stacks Core version 3.2.0.0.0, available here: https://github.com/stacks-network/stacks-core/releases/tag/3.2.0.0.0.
This release implements the 3.2 Stacks consensus rules which activates at Bitcoin block `907,740`. For more details see SIP-031.
**This is a required upgrade**
- Activation is estimated for July 29th, 2024 around 1800 UTC, or Bitcoin block `907,740`.
- Upgrading after Bitcoin block `907,740` **will require** a genesis sync.
This release is compatible with chainstate directories from 3.x.x.x.x.
The version of stacks-signer compatible with this release is 3.2.0.0.0.0, available at: https://github.com/stacks-network/stacks-core/releases/tag/signer-3.2.0.0.0.0.
### Added
- Added `/v3/contracts/fast-call-read/:principal/:contract_name/:func_name` api endpoint. It allows to run read-only calls faster by disabling the cost and memory trackers. This endpoint requires authentication.
- **SIP-031 consensus rules, activating in epoch 3.2 at block 907_740**
- Added `info` logs to the signer to provide more visibility into the block approval/rejection status
- Introduced `capitulate_miner_view_timeout_secs`: the duration (in seconds) for the signer to wait between updating the local state machine viewpoint and capitulating to other signers' miner views.
- Added codepath to enable signers to evaluate block proposals and miner activity against global signer state for improved consistency and correctness. Currently feature gated behind the `SUPPORTED_SIGNER_PROTOCOL_VERSION`
- Added the `clarity-serialization` crate: A lightweight crate for serializing and deserializing Clarity values. This crate decouples core data types from the Clarity VM, making it easier to build off-chain tooling, and other applications that interact with Clarity data. It includes support for `wasm32-unknown-unknown` targets via the `wasm-web` and `wasm-deterministic` features.
### Changed
- The HTTP `Date` header in responses now strictly follows RFC7231.
- When a previous block commit is unable to be RBFed, the miner will now just wait for it to be confirmed instead of submitting a new block commit which breaks the miner's UTXO chain.
- When mining, only log new block proposal responses, not duplicates.
- Do not count both a block acceptance and a block rejection for the same signer/block. Also ignore repeated responses (mainly for logging purposes).
- Database schema updated to version 16
### Fixed
- Fixed tenure downloader logic on reward cycle boundaries (#6234).
- Do not send events to event observers for stale StackerDB chunks.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Stacks Core:
Git commit hash: 6c769636d5d598d1872960ca2744ad1b64fa6385
SHA512SUMS:
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------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Stacks Signer:
Git commit hash: 6c769636d5d598d1872960ca2744ad1b64fa6385
SHA512SUMS:
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Best,
Jesse Wiley
Engineering Partner, Stacks Foundation
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Hash: SHA512
Hello,
Stacks core developers have released Stacks Core version 3.2.0.0.0, available here: https://github.com/stacks-network/stacks-core/releases/tag/3.2.0.0.0.
This release implements the 3.2 Stacks consensus rules which activates at Bitcoin block `907,740`. For more details see SIP-031.
**This is a required upgrade**
- Activation is estimated for July 29th, 2024 around 1800 UTC, or Bitcoin block `907,740`.
- Upgrading after Bitcoin block `907,740` **will require** a genesis sync.
This release is compatible with chainstate directories from 3.x.x.x.x.
The version of stacks-signer compatible with this release is 3.2.0.0.0.0, available at: https://github.com/stacks-network/stacks-core/releases/tag/signer-3.2.0.0.0.0.
### Added
- Added `/v3/contracts/fast-call-read/:principal/:contract_name/:func_name` api endpoint. It allows to run read-only calls faster by disabling the cost and memory trackers. This endpoint requires authentication.
- **SIP-031 consensus rules, activating in epoch 3.2 at block 907_740**
- Added `info` logs to the signer to provide more visibility into the block approval/rejection status
- Introduced `capitulate_miner_view_timeout_secs`: the duration (in seconds) for the signer to wait between updating the local state machine viewpoint and capitulating to other signers' miner views.
- Added codepath to enable signers to evaluate block proposals and miner activity against global signer state for improved consistency and correctness. Currently feature gated behind the `SUPPORTED_SIGNER_PROTOCOL_VERSION`
- Added the `clarity-serialization` crate: A lightweight crate for serializing and deserializing Clarity values. This crate decouples core data types from the Clarity VM, making it easier to build off-chain tooling, and other applications that interact with Clarity data. It includes support for `wasm32-unknown-unknown` targets via the `wasm-web` and `wasm-deterministic` features.
### Changed
- The HTTP `Date` header in responses now strictly follows RFC7231.
- When a previous block commit is unable to be RBFed, the miner will now just wait for it to be confirmed instead of submitting a new block commit which breaks the miner's UTXO chain.
- When mining, only log new block proposal responses, not duplicates.
- Do not count both a block acceptance and a block rejection for the same signer/block. Also ignore repeated responses (mainly for logging purposes).
- Database schema updated to version 16
### Fixed
- Fixed tenure downloader logic on reward cycle boundaries (#6234).
- Do not send events to event observers for stale StackerDB chunks.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Stacks Core:
Git commit hash: 6c769636d5d598d1872960ca2744ad1b64fa6385
SHA512SUMS:
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------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Stacks Signer:
Git commit hash: 6c769636d5d598d1872960ca2744ad1b64fa6385
SHA512SUMS:
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Best,
Jesse Wiley
Engineering Partner, Stacks Foundation
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