Bump tzdata from 2025.3 to 2026.1

[dependabot]

Bumps tzdata from 2025.3 to 2026.1.

Release notes

Sourced from tzdata's releases.

2026.1: Release of upstream tzdata 2026a

Version 2026.1

Upstream version 2026a released 2026-03-02T06:59:49+00:00

Briefly:

Moldova has used EU transition times since 2022. The "right" TZif files are no longer installed by default. -DTZ_RUNTIME_LEAPS=0 disables runtime support for leap seconds. TZif files are no longer limited to 50 bytes of abbreviations. zic is no longer limited to 50 leap seconds. Several integer overflow bugs have been fixed.

Changes to past and future timestamps

Since 2022 Moldova has observed EU transition times, that is, it has sprung forward at 03:00, not 02:00, and has fallen back at 04:00, not 03:00. (Thanks to Heitor David Pinto.)

Changes to data

Remove Europe/Chisinau from zonenow.tab, as it now agrees with Europe/Athens for future timestamps.

Changelog

Sourced from tzdata's changelog.

Version 2026.1

Upstream version 2026a released 2026-03-02T06:59:49+00:00

Briefly:

Moldova has used EU transition times since 2022. The "right" TZif files are no longer installed by default. -DTZ_RUNTIME_LEAPS=0 disables runtime support for leap seconds. TZif files are no longer limited to 50 bytes of abbreviations. zic is no longer limited to 50 leap seconds. Several integer overflow bugs have been fixed.

Changes to past and future timestamps

Since 2022 Moldova has observed EU transition times, that is, it has sprung forward at 03:00, not 02:00, and has fallen back at 04:00, not 03:00. (Thanks to Heitor David Pinto.)

Changes to data

Remove Europe/Chisinau from zonenow.tab, as it now agrees with Europe/Athens for future timestamps.

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Commits

• 4997cab Update tzdata to version '2026a' (#123)
• 4d6c41f Update development status to 'Production/Stable' (#127)
• 7c1ce85 Remove 'v' from tags in auto-tag.yml
• 77a9c09 Update docs links to tzdata.python.org (#125)
• 11148f6 Remove quotes from update branch names
• 98fa430 Bump actions/checkout from 5 to 6 in the actions group (#122)
• 7ef7c61 Add auto-tag workflow (#110)
• 3fec560 Update tzdata to version '2025c'
• See full diff in compare view

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---

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[github-actions]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ✅ 0 package(s) with incompatible licenses
• ✅ 0 package(s) with invalid SPDX license definitions
• ⚠️ 1 package(s) with unknown licenses.

See the Details below.

Snapshot Warnings

⚠️: No snapshots were found for the head SHA 8811fc3.

Ensure that dependencies are being submitted on PR branches and consider enabling retry-on-snapshot-warnings. See the documentation for more information and troubleshooting advice.

License Issues

poetry.lock

Package	Version	License	Issue Type
tzdata	2026.1	Null	Unknown License

OpenSSF Scorecard

Package	Version	Score	Details
pip/tzdata	2026.1	🟢 5.4	Details Check Score Reason Code-Review 🟢 7 Found 16/22 approved changesets -- score normalized to 7 Maintained 🟢 4 5 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 4 Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Token-Permissions ⚠️ 0 detected GitHub workflow tokens with excessive permissions Binary-Artifacts 🟢 10 no binaries found in the repo Pinned-Dependencies ⚠️ 0 dependency not pinned by hash detected -- score normalized to 0 Fuzzing ⚠️ 0 project is not fuzzed License 🟢 9 license file detected Signed-Releases ⚠️ -1 no releases found Branch-Protection ⚠️ -1 internal error: error during branchesHandler.setup: internal error: some github tokens can't read classic branch protection rules: https://github.com/ossf/scorecard-action/blob/main/docs/authentication/fine-grained-auth-token.md Packaging 🟢 10 packaging workflow detected Security-Policy 🟢 10 security policy file detected SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0

Scanned Files

• poetry.lock