Sourced from https://github.com/rhysd/actionlint's releases.

v1.7.12

• Support the timezone configuration in on.schedule with checks for IANA timezone string. See the documentation for more details. Note that actionlint starts to embed the timezone database in the executables from this version so the binary sizes slightly increase. (#641, thanks @​martincostello)

  on:
    schedule:
      # ERROR: The timezone is not a valid IANA timezone string
      - cron: '*/5 * * * *'
        timezone: 'Asia/Somewhere'

• Support the jobs.<job_name>.environment.deployment configuration. (#639, thanks @​springmeyer)
• Support the macos-26-intel runner label. (#629, thanks @​hugovk)
• Fix the outdated table of webhook activity types by rebuilding the script to scrape the table from scratch.
• Support Go 1.26 and drop the support for Go 1.24. Now supported versions are 1.25 and 1.26.
• Tests are run on arm64 Windows in CI.
• Update the popular actions data set to the latest.

v1.7.11

• Support the case() function in ${{ }} expressions which was recently added to GitHub Actions. (#612, #614, thanks @​heppu)

  env:
    # ERROR: case() requires an odd number of arguments
    ENVIRONMENT: |-
      ${{ case(
        github.ref == 'refs/heads/main', 'production',
        github.ref == 'refs/heads/staging', 'staging'
      ) }}

• Support new macos-26-large and windows-2025-vs2026 runner labels. See the GitHub's announce for more details. (#615, thanks @​hugovk and @​muzimuzhi)
• Enable Artifact attestations for the released binaries. From v1.7.11 gh command can verify the integrity of the downloaded binaries as follows. The verification is highly recommended in terms of supply chain security. (#608, thanks @​takaram)

  $ gh release download --repo rhysd/actionlint --pattern '*_darwin_amd64.tar.gz' v1.7.11
  $ gh attestation verify --repo rhysd/actionlint actionlint_1.7.11_darwin_amd64.tar.gz
  Loaded digest sha256:17ffc17fed8f0258ef6ad4aed932d3272464c7ef7d64e1cb0d65aa97c9752107 for file://actionlint_1.7.11_darwin_amd64.tar.gz
  Loaded 1 attestation from GitHub API
  The following policy criteria will be enforced:
  
  Predicate type must match:................ https://slsa.dev/provenance/v1
  Source Repository Owner URI must match:... https://github.com/rhysd
  Source Repository URI must match:......... https://github.com/rhysd/actionlint
  Subject Alternative Name must match regex: (?i)^https://github.com/rhysd/actionlint/
  OIDC Issuer must match:................... https://token.actions.githubusercontent.com
  
  ✓ Verification succeeded!
  The following 1 attestation matched the policy criteria
  
  Attestation #1
  
  Build repo:..... rhysd/actionlint
  Build workflow:. .github/workflows/release.yaml@refs/tags/v1.7.11
  Signer repo:.... rhysd/actionlint

... (truncated)

Sourced from https://github.com/rhysd/actionlint's changelog.

v1.7.12 - 2026-03-30

• Support the timezone configuration in on.schedule with checks for IANA timezone string. See the documentation for more details. Note that actionlint starts to embed the timezone database in the executables from this version so the binary sizes slightly increase. (#641, thanks @​martincostello)

  on:
    schedule:
      # ERROR: The timezone is not a valid IANA timezone string
      - cron: '*/5 * * * *'
        timezone: 'Asia/Somewhere'

• Support the jobs.<job_name>.environment.deployment configuration. (#639, thanks @​springmeyer)
• Support the macos-26-intel runner label. (#629, thanks @​hugovk)
• Fix the table of webhook activity types are outdated by rebuilding the script to scrape the table from scratch.
• Support Go 1.26 and drop the support for Go 1.24. Now supported versions are 1.25 and 1.26.
• Tests are run on arm64 Windows in CI.
• Update the popular actions data set to the latest.

[Changes][v1.7.12]

v1.7.11 - 2026-02-14

• Support the case() function in ${{ }} expressions which was recently added to GitHub Actions. (#612, #614, thanks @​heppu)

  env:
    # ERROR: case() requires an odd number of arguments
    ENVIRONMENT: |-
      ${{ case(
        github.ref == 'refs/heads/main', 'production',
        github.ref == 'refs/heads/staging', 'staging'
      ) }}

• Support new macos-26-large and windows-2025-vs2026 runner labels. See the GitHub's announce for more details. (#615, thanks @​hugovk and @​muzimuzhi)
• Enable Artifact attestations for the released binaries. From v1.7.11 gh command can verify the integrity of the downloaded binaries as follows. The verification is highly recommended in terms of supply chain security. (#608, thanks @​takaram)

  $ gh release download --repo rhysd/actionlint --pattern '*_darwin_amd64.tar.gz' v1.7.11
  $ gh attestation verify --repo rhysd/actionlint actionlint_1.7.11_darwin_amd64.tar.gz
  Loaded digest sha256:17ffc17fed8f0258ef6ad4aed932d3272464c7ef7d64e1cb0d65aa97c9752107 for file://actionlint_1.7.11_darwin_amd64.tar.gz
  Loaded 1 attestation from GitHub API
  The following policy criteria will be enforced:
  
  Predicate type must match:................ https://slsa.dev/provenance/v1
  Source Repository Owner URI must match:... https://github.com/rhysd
  Source Repository URI must match:......... https://github.com/rhysd/actionlint
  Subject Alternative Name must match regex: (?i)^https://github.com/rhysd/actionlint/
  OIDC Issuer must match:................... https://token.actions.githubusercontent.com
  
  ✓ Verification succeeded!

... (truncated)

• 914e7df bump up version to v1.7.12
• f1fe8a1 update popular actions data set to the latest
• 0ef3e18 add support for https://github.blog/changelog/2026-03-19-github-actions-late-...
• d2f9e65 update document to describe the timezone check in on.schedule
• c03b271 Merge branch 'followup-issue641' (#641)
• c9efd91 fix staticcheck checks files inside ./playground/node_modules
• 08e2336 include timezone database in executable statically
• f48c0a4 fix timezone check is incomplete
• 6b811d3 fix problem matcher test fails due to line ending in test data
• 4897c1d Merge pull request #641 from martincostello/gh-638
• Additional commits viewable in compare view

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