Lotus Node and Miner v1.34.0 Release (nv27)

[github-actions]

😶‍🌫 Meta

• Type: Node and Miner
• Level: minor
• Related network upgrade version: nv27
  • Scope, dates, and epochs: nv27 Network Upgrade Planning core-devs#196
  • Lotus changelog with Lotus specifics:

🚢 Estimated shipping date

Candidate	Expected Release Date	Release URL
RC1	By 2025-09-04	https://github.com/filecoin-project/lotus/releases/tag/v1.34.0-rc1 https://github.com/filecoin-project/lotus/releases/tag/miner%2Fv1.34.0-rc1
RC2	2025-09-05	https://github.com/filecoin-project/lotus/releases/tag/v1.34.0-rc2 https://github.com/filecoin-project/lotus/releases/tag/miner%2Fv1.34.0-rc2
Stable (non-RC)	2025-09-11	https://github.com/filecoin-project/lotus/releases/tag/v1.34.0 https://github.com/filecoin-project/lotus/releases/tag/miner/v1.34.0

🪢 Dependencies for releases

Note

1. This is the set of changes that need to make it in for a given RC. This is effectively the set of changes to cherry-pick from master.
2. They can be checked as done once they land in master.
3. They are presented here for quick reference, but backporting is tracked in each Release Checklist.

rc1

• Add support for F3 aware snapshots #13129
• feat(api): implement miner creation deposit requirement #13308
• feat(f3): expose simple ChainGetFinalizedTipSet that just returns a tipset #13299
• feat(eth): use F3 for "finalized" and "safe" resolution in v1 APIs #13298

rc2

• fix: handle partial reads in UnpadReader for non-power-of-2 pieces #13306
• fix: update nv27 naming from Xx to GoldenWeek #13319
• chore: release 17.0.0-rc1 builtin-actors#1701

Stable Release (non-RC)

• Account for FIP-0077 #13287
• Validate FIP-0105 #13285
• Validate FIP-0109 (deferred until nv28) #13286

✅ Release Checklist

⬅️ Before RC1

Section

• Make sure all Lotus dependencies are updated to the correct versions for the network upgrade
  • Link to Lotus PR: chore: build: Update actor bundle to v17.0.0-dev1 #13304
• Open PR against RELEASE_ISSUE_TEMPLATE.md with title docs(release): v1.34.0 release template improvements for improving future releases.
  • Link to PR: docs(release): v1.34.0. v1.34.1, v1.34.2 release template improvements #13270
  • There likely aren't any changes at this point, but this can be opened with a small whitespace change so the PR is open and we can more easily hold the standard of making improvements incrementally since improvements are usually better done by collecting changes/notes along the way rather than just thinking about it at the end.
  • This will get merged in a Post Release step.
• Fork a new release/v1.34.0 branch from master and make any further release-related changes to this branch.
• Fork a new release/miner/v1.34.0 branch from master and make any further release-related changes to this branch.
• master branch Version string updates
  • bump the version(s) in build/version.go to v1.34.1-dev.
    • Ensure to update NodeBuildVersion
    • Ensure to update MinerBuildVersion
  • Run make gen && make docsgen-cli before committing changes.
  • Update the CHANGELOG
    • Change the UNRELEASED section header to UNRELEASED v1.34.0
    • Set the UNRELEASED v1.34.0 section's content to be "See https://github.com/filecoin-project/lotus/blob/release/v1.34.0/CHANGELOG.md"
    • Add a new UNRELEASED header to top.
  • Create a PR with title build: update Lotus Node and Miner version to v1.34.1-dev in master
    • Link to PR: build: update Lotus Node and Miner version to v1.34.1-dev in master #13313
  • Merge PR

🏎️ RCs

rc1

Section

[!IMPORTANT]
These PRs should be done in and target the release/v1.34.0 or release/miner/v1.34.0 branch.

Backport PR for rc1

• All explicitly tracked items from Dependencies for releases have landed

Release PR for rc1

• Update the version string(s) in build/version.go to one ending with '-rc1'.
  • Ensure to update NodeBuildVersion
  • Ensure to update MinerBuildVersion
• Run make gen && make docsgen-cli to generate documentation
• Create a draft PR with title build: release Lotus Node and Miner v1.34.0-rc1
  • Link to PR: build: release Lotus Node and Miner v1.34.0-rc1 #13314
  • Opening a PR will trigger a CI run that will build assets, create a draft GitHub release, and attach the assets.
• Changelog prep
  • Go to the releases page and copy the auto-generated release notes into the CHANGELOG
  • Perform editorial review (e.g., callout breaking changes, new features, FIPs, actor bundles)
  • (network upgrade) Specify whether the Calibration or Mainnet upgrade epoch has been specified or not yet.
    • Example where these weren't specified yet: PR #12169
  • Ensure no missing content when spot checking git history
    • Example command looking at git commits: git log --oneline --graph vA.B.C.., where A.B.C correspond to the previous release.
    • Example GitHub UI search looking at merged PRs into master: https://github.com/filecoin-project/lotus/pulls?q=is%3Apr+base%3Amaster+merged%3A%3EYYYY-MM-DD
    • Example gh cli command looking at merged PRs into master and sorted by title to group similar areas (where YYYY-MM-DD is the start search date): gh pr list --repo filecoin-project/lotus --search "base:master merged:>YYYY-MM-DD" --json number,mergedAt,author,title | jq -r '.[] | [.number, .mergedAt, .author.login, .title] | @tsv' | sort -k4
  • Update the PR with the commit(s) made to the CHANGELOG
• Mark the PR "ready for review" (non-draft)
• Merge the PR
  • Merging the PR will trigger a CI run that will build assets, attach the assets to the GitHub release, publish the GitHub release, and create the corresponding git tag.
• Update 🚢 Estimated shipping date table
• Comment on this issue announcing the release
  • Link to issue comment: Lotus Node and Miner v1.34.0 Release (nv27) #13269 (comment)

Testing for rc1

[!NOTE]
Link to any special steps for testing releases beyond ensuring CI is green. Steps can be inlined here or tracked elsewhere.

rc2

Section

[!IMPORTANT]
These PRs should be done in and target the release/v1.34.0 or release/miner/v1.34.0 branch.

Backport PR for rc2

• All explicitly tracked items from Dependencies for releases have landed
• Backported everything with the "backport" label
  • The only item was fix: handle partial reads in UnpadReader for non-power-of-2 pieces #13306
• Create a PR with title build: backport changes for Node and Miner v1.34.0-rcX
• Merge PR
  • Note: due to operator learning/training, the change wasn't backported via a PR. It was directly pushed. We manually confirmed the right commit was cherry picked: b8b91db
• Remove the "backport" label from all backported PRs (no "backport" issues)

Release PR for rc2

• Update the version string(s) in build/version.go to one ending with '-rc2'.
  • Ensure to update NodeBuildVersion
  • Ensure to update MinerBuildVersion
• Run make gen && make docsgen-cli to generate documentation
• Create a draft PR with title build: release Lotus Node and Miner v1.34.0-rc2
  • Link to PR: build: release Lotus Node and Miner v1.34.0-rc2 #13320
  • Opening a PR will trigger a CI run that will build assets, create a draft GitHub release, and attach the assets.
• Changelog prep
  • Go to the releases page and copy the auto-generated release notes into the CHANGELOG
  • Perform editorial review (e.g., callout breaking changes, new features, FIPs, actor bundles)
  • (network upgrade) Specify whether the Calibration or Mainnet upgrade epoch has been specified or not yet.
    • Example where these weren't specified yet: PR #12169
  • Ensure no missing content when spot checking git history
    • Example command looking at git commits: git log --oneline --graph vA.B.C.., where A.B.C correspond to the previous release.
    • Example GitHub UI search looking at merged PRs into master: https://github.com/filecoin-project/lotus/pulls?q=is%3Apr+base%3Amaster+merged%3A%3EYYYY-MM-DD
    • Example gh cli command looking at merged PRs into master and sorted by title to group similar areas (where YYYY-MM-DD is the start search date): gh pr list --repo filecoin-project/lotus --search "base:master merged:>YYYY-MM-DD" --json number,mergedAt,author,title | jq -r '.[] | [.number, .mergedAt, .author.login, .title] | @tsv' | sort -k4
  • Update the PR with the commit(s) made to the CHANGELOG
• Mark the PR "ready for review" (non-draft)
• Merge the PR
  • Merging the PR will trigger a CI run that will build assets, attach the assets to the GitHub release, publish the GitHub release, and create the corresponding git tag.
• Update 🚢 Estimated shipping date table
• Comment on this issue announcing the release
  • Link to issue comment: Lotus Node and Miner v1.34.0 Release (nv27) #13269 (comment)

Testing for rc2

[!NOTE]
Link to any special steps for testing releases beyond ensuring CI is green. Steps can be inlined here or tracked elsewhere.

Stable Release (non-RC)

Section

[!IMPORTANT]
These PRs should be done in and target the release/v1.34.0 or release/miner/v1.34.0 branch.

Backport PR for Stable Release (non-RC)

• All explicitly tracked items from Dependencies for releases have landed
• Backported everything with the "backport" label
• Create a PR with title build: backport changes for Node and Miner v1.34.0
  • Link to PR: build: backport changes for Node and Miner v1.34.0 #13337
• Merge PR
• Remove the "backport" label from all backported PRs (no "backport" issues)

Release PR for Stable Release (non-RC)

• Update the version string(s) in build/version.go to one NOT ending with 'rcX'.
  • Ensure to update NodeBuildVersion
  • Ensure to update MinerBuildVersion
• Run make gen && make docsgen-cli to generate documentation
• Create a draft PR with title build: release Lotus Node and Miner v1.34.0
  • Link to PR: build: release Lotus Node and Miner v1.34.0 #13338
  • Opening a PR will trigger a CI run that will build assets, create a draft GitHub release, and attach the assets.
• Changelog prep
  • Go to the releases page and copy the auto-generated release notes into the CHANGELOG
  • Perform editorial review (e.g., callout breaking changes, new features, FIPs, actor bundles)
  • (network upgrade) Ensure the Mainnet upgrade epoch is specified.
  • Ensure no missing content when spot checking git history
    • Example command looking at git commits: git log --oneline --graph vA.B.C.., where A.B.C correspond to the previous release.
    • Example GitHub UI search looking at merged PRs into master: https://github.com/filecoin-project/lotus/pulls?q=is%3Apr+base%3Amaster+merged%3A%3EYYYY-MM-DD
    • Example gh cli command looking at merged PRs into master and sorted by title to group similar areas (where YYYY-MM-DD is the start search date): gh pr list --repo filecoin-project/lotus --search "base:master merged:>YYYY-MM-DD" --json number,mergedAt,author,title | jq -r '.[] | [.number, .mergedAt, .author.login, .title] | @tsv' | sort -k4
  • Update the PR with the commit(s) made to the CHANGELOG
• Mark the PR "ready for review" (non-draft)
• Merge the PR
  • Merging the PR will trigger a CI run that will build assets, attach the assets to the GitHub release, publish the GitHub release, and create the corresponding git tag.
• Update 🚢 Estimated shipping date table
• Comment on this issue announcing the release:
  • Link to issue comment: Lotus Node and Miner v1.34.0 Release (nv27) #13269 (comment)

Testing for Stable Release (non-RC)

[!NOTE]
Link to any special steps for testing releases beyond ensuring CI is green. Steps can be inlined here or tracked elsewhere.

➡ Post-Release

Section

• Open a PR against master cherry-picking the CHANGELOG commits from the release/v1.34.0 branch. Title it chore(release): cherry-pick v1.34.0 changelog back to master
  • Link to PR: chore: backport Calibration NV27 height and v1.34.0 CHANGELOG to master #13341
  • Assuming we followed the process of merging changes into master first before backporting to the release branch, the only changes should be CHANGELOG updates.
• Finish updating/merging the RELEASE_ISSUE_TEMPLATE.md PR from Before RC1 with any improvements determined from this latest release iteration.
  • We are going to do this as part of Lotus Node and Miner v1.34.1 Release #13340
• Review and approve the auto-generated PR in lotus-docs that updates the latest Lotus version information.
• Review and approve the auto-generated PR in homebrew-lotus that updates the homebrew to the latest Lotus version.
• Stage any security advisories for future publishing per policy.

❤️ Contributors

See the final release notes!

⁉️ Do you have questions?

Leave a comment in this ticket!

[BigLep]

RC1 is out for both Lotus node and miner: https://github.com/filecoin-project/lotus/releases/tag/v1.34.0-rc1. Thanks @TippyFlitsUK for making this happen and for everyone's patience as we worked through some kinks.

[BigLep]

Note that we will be cutting an RC2 today to add in functionality/fixes to unblock downstream consumers like Boost.