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PyPI · #2554 most downloaded on PyPI
IERS Earth Rotation and Leap Second tables for the astropy core package
Last release 7 days ago
28 Sep 2026
Ships on a steady schedule
a new release about every 2 weeks
Nearly every release is documented
notes for 60 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
3 years old
177 releases · first in 2023
One column per quarter.
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Bump the actions group in /.github/workflows with 2 updates by @dependabot [bot] in #78
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Upgrade OpenAstronomy to v3.0.3 to fix release workflow by @pllim in #77
v0.2026.8.17.0.23.36 that did not make it to PyPI.Full Changelog: v0.2026.8.17.0.23.36...v0.2026.8.18.14.22.31
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Bump the actions group in /.github/workflows with 4 updates by @dependabot [bot] in #76
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Bump the actions group in /.github/workflows with 3 updates by @dependabot [bot] in #75
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Bump the actions group in /.github/workflows with 2 updates by @dependabot[bot] in https://github.com/astropy/astropy-iers-data/pull/71
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TST: expand test matrix to include all supported Python versions by @neutrinoceros in https://github.com/astropy/astropy-iers-data/pull/55
build_docs env by @neutrinoceros in https://github.com/astropy/astropy-iers-data/pull/59Full Changelog: https://github.com/astropy/astropy-iers-data/compare/v0.2026.3.16.0.53.33...v0.2026.3.23.0.51.38
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Bump the actions group in /.github/workflows with 3 updates by @dependabot[bot] in https://github.com/astropy/astropy-iers-data/pull/52
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Bump actions/checkout from 6.0.1 to 6.0.2 in /.github/workflows in the actions group by @dependabot[bot] in https://github.com/astropy/astropy-iers-da
Full Changelog: https://github.com/astropy/astropy-iers-data/compare/v0.2026.1.26.0.43.56...v0.2026.2.2.0.48.1
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Bump actions/checkout from 6.0.0 to 6.0.1 in /.github/workflows in the actions group by @dependabot[bot] in https://github.com/astropy/astropy-iers-da
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Bump the actions group in /.github/workflows with 5 updates by @dependabot[bot] in https://github.com/astropy/astropy-iers-data/pull/48
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MNT: drop deprecated License classifier, update related metadata (PEP 639) by @neutrinoceros in https://github.com/astropy/astropy-iers-data/pull/47
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Bump the actions group in /.github/workflows with 2 updates by @dependabot[bot] in https://github.com/astropy/astropy-iers-data/pull/45
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Bump the actions group in /.github/workflows with 2 updates by @dependabot[bot] in https://github.com/astropy/astropy-iers-data/pull/44
Full Changelog: https://github.com/astropy/astropy-iers-data/compare/v0.2025.9.29.0.35.48...v0.2025.10.6.0.35.25
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Bump actions/checkout from 4.2.2 to 5.0.0 in /.github/workflows in the actions group by @dependabot[bot] in https://github.com/astropy/astropy-iers-da
Full Changelog: https://github.com/astropy/astropy-iers-data/compare/v0.2025.9.1.0.42.11...v0.2025.9.8.0.36.17
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Bump OpenAstronomy/github-actions-workflows from 2.1.0 to 2.2.1 in /.github/workflows in the actions group by @dependabot[bot] in https://github.com/a
Full Changelog: https://github.com/astropy/astropy-iers-data/compare/v0.2025.7.28.0.41.50...v0.2025.8.4.0.42.59
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