Release 3.3.0.0.6: bugfixes and improvements
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Jesse Wiley
Mar 9, 2026, 2:09:44 PM (11 days ago) Mar 9
to announce
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Hello,
Stacks core developers have released Stacks Core version 3.3.0.0.6, available here: https://github.com/stacks-network/stacks-core/releases/tag/3.3.0.0.6.
This release contains several bugfixes and improvements to the stacks-node and stacks-signer binaries, ensuring more consistent block production.
This release is compatible with chainstate directories from 3.3.x.x.x.
The version of stacks-signer compatible with this release is 3.3.0.0.6.0, available at: https://github.com/stacks-network/stacks-core/releases/tag/signer-3.3.0.0.6.0.
**Notes:**
Due to the changes in this release, if a node operator is running both `stacks-node` and `stacks-signer` binaries, updating either of them **will require** updating both of them.
Starting from this release, docker images shall be published by default to a ghcr registry using the format:
stacks-core image: `ghcr.io/stacks-network/stacks-core:tag`.
stacks-signer image: `ghcr.io/stacks-network/stacks-signer:tag`
The existing dockerhub repository will remain as a mirror.
### Added
* Setup for epoch 3.4 and Clarity version 5. Epoch 3.4 is currently set to activate at Bitcoin height 3,400,000 (very far in the future) until an activation height is selected. Clarity will activate with epoch 3.4.
* Implemented the updated behavior for `secp256r1-verify`, effective in Clarity 5, in which the `message-hash` is no longer hashed again. See SIP-035 for details.
* Increased allowed stack depth from 64 to 128, effective in epoch 3.4
* Prepare for epoch 3.4's improved transaction inclusion, allowing transactions with certain errors to be included in blocks which would cause them to be rejected in earlier epochs.
* Added `marf_compress` as a node configuration parameter to enable MARF compression feature ([#6811](https://github.com/stacks-network/stacks-core/pull/6811))
* Effective in epoch 3.4 `contract-call?`s can accept a constant as the contract to be called
* Add support for tracking pending block responses for up to 3 unique untracked blocks per signer address. This improves handling of late block proposals by allowing the signer to process previously seen responses for blocks that were not being tracked.
* Added `approved_time` column to the `blocks` database table
### Fixed
* Improved the cost-tracking for `from-consensus-buff?`, effective in epoch 3.4, so that when an empty buffer is passed, users will see a `none` result, rather than a confusing runtime error.
* Resolved several cases where a mock-miner would stop mining
* /v2/pox endpoint now returns the `pox_ustx_threshold` stored in the reward set instead of a live computed value, which incorrectly accounts for STX locked during the prepare phase, after the reward set has been set.
* Signer protocol version negotiation now properly handles downgrades based on majority consensus, not just upgrades
* The sortition DB now tracks canonical Stacks tip by its burn view, allowing it to recover from a chain freeze if the Bitcoin block upon which the ongoing tenure is based is orphened before the last tenure block is processed.
### Changed
* Database schema updated to version 19
* Removed `signed_over` column from the `blocks` database table
* Improved signer behaviour to ensure block proposal responses are sent more consistently, even for blocks that have already been globally accepted by the network. This increases reliability and reduces missed responses in edge cases.
************************************************************************************************************************************************************************************
Stacks Core:
Git commit hash: 01c97680e6d013b51a859499c90c3b89469d6854
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************************************************************************************************************************************************************************************
Stacks Signer:
Git commit hash: 01c97680e6d013b51a859499c90c3b89469d6854
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 3.3.0.0.6, available here: https://github.com/stacks-network/stacks-core/releases/tag/3.3.0.0.6.
This release contains several bugfixes and improvements to the stacks-node and stacks-signer binaries, ensuring more consistent block production.
This release is compatible with chainstate directories from 3.3.x.x.x.
The version of stacks-signer compatible with this release is 3.3.0.0.6.0, available at: https://github.com/stacks-network/stacks-core/releases/tag/signer-3.3.0.0.6.0.
**Notes:**
Due to the changes in this release, if a node operator is running both `stacks-node` and `stacks-signer` binaries, updating either of them **will require** updating both of them.
Starting from this release, docker images shall be published by default to a ghcr registry using the format:
stacks-core image: `ghcr.io/stacks-network/stacks-core:tag`.
stacks-signer image: `ghcr.io/stacks-network/stacks-signer:tag`
The existing dockerhub repository will remain as a mirror.
### Added
* Setup for epoch 3.4 and Clarity version 5. Epoch 3.4 is currently set to activate at Bitcoin height 3,400,000 (very far in the future) until an activation height is selected. Clarity will activate with epoch 3.4.
* Implemented the updated behavior for `secp256r1-verify`, effective in Clarity 5, in which the `message-hash` is no longer hashed again. See SIP-035 for details.
* Increased allowed stack depth from 64 to 128, effective in epoch 3.4
* Prepare for epoch 3.4's improved transaction inclusion, allowing transactions with certain errors to be included in blocks which would cause them to be rejected in earlier epochs.
* Added `marf_compress` as a node configuration parameter to enable MARF compression feature ([#6811](https://github.com/stacks-network/stacks-core/pull/6811))
* Effective in epoch 3.4 `contract-call?`s can accept a constant as the contract to be called
* Add support for tracking pending block responses for up to 3 unique untracked blocks per signer address. This improves handling of late block proposals by allowing the signer to process previously seen responses for blocks that were not being tracked.
* Added `approved_time` column to the `blocks` database table
### Fixed
* Improved the cost-tracking for `from-consensus-buff?`, effective in epoch 3.4, so that when an empty buffer is passed, users will see a `none` result, rather than a confusing runtime error.
* Resolved several cases where a mock-miner would stop mining
* /v2/pox endpoint now returns the `pox_ustx_threshold` stored in the reward set instead of a live computed value, which incorrectly accounts for STX locked during the prepare phase, after the reward set has been set.
* Signer protocol version negotiation now properly handles downgrades based on majority consensus, not just upgrades
* The sortition DB now tracks canonical Stacks tip by its burn view, allowing it to recover from a chain freeze if the Bitcoin block upon which the ongoing tenure is based is orphened before the last tenure block is processed.
### Changed
* Database schema updated to version 19
* Removed `signed_over` column from the `blocks` database table
* Improved signer behaviour to ensure block proposal responses are sent more consistently, even for blocks that have already been globally accepted by the network. This increases reliability and reduces missed responses in edge cases.
************************************************************************************************************************************************************************************
Stacks Core:
Git commit hash: 01c97680e6d013b51a859499c90c3b89469d6854
SHA512SUMS:
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************************************************************************************************************************************************************************************
Stacks Signer:
Git commit hash: 01c97680e6d013b51a859499c90c3b89469d6854
SHA512SUMS:
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Best,
Jesse Wiley
Engineering Partner, Stacks Foundation
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