What's Changed The important change is this one: Fixes #796 - cosmicray_lacosmic data type return by @allisoneto in https://github.com/astropy/ccdproc/pull/831 New Contributors @allisoneto made their first contribution in https://github.com/astropy/ccdproc/pull/831 The rest of the maintenance fixes were: DOC: adapt a docstest for numpy 2 (representation of scalars changed) (round 2) by @neutrinoceros in https://github.com/astropy/ccdproc/pull/829 TST: pin numpy<2 for tests with old astroscrappy by @neutrinoceros in https://github.com/astropy/ccdproc/pull/830 Migrate to pyproject.toml instead of setup.cfg by @mwcraig in https://github.com/astropy/ccdproc/pull/832 Black format codebase by @mwcraig in https://github.com/astropy/ccdproc/pull/833 Add pre-commit and auto-formatting with black by @mwcraig in https://github.com/astropy/ccdproc/pull/834 Update test matrix for newer versions of numpy by @mwcraig in https://github.com/astropy/ccdproc/pull/836 Workflow maintainance by @mwcraig in https://github.com/astropy/ccdproc/pull/837 Address a few minor issues identified by scientific python repo checker by @mwcraig in https://github.com/astropy/ccdproc/pull/838 Add ruff linting to ccdproc by @mwcraig in https://github.com/astropy/ccdproc/pull/840 Add some configuration of pre-commit.ci by @mwcraig in https://github.com/astropy/ccdproc/pull/843 MNT: Use hash for Action workflow versions and update if needed by @mwcraig in https://github.com/astropy/ccdproc/pull/844 [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/astropy/ccdproc/pull/846 Bump codecov/codecov-action from 4.5.0 to 4.6.0 in the actions group by @dependabot in https://github.com/astropy/ccdproc/pull/845 Bump the actions group across 1 directory with 3 updates by @dependabot in https://github.com/astropy/ccdproc/pull/853 [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/astropy/ccdproc/pull/848 Bump codecov/codecov-action from 5.0.2 to 5.0.7 in the actions group by @dependabot in https://github.com/astropy/ccdproc/pull/854 [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in https://github.com/astropy/ccdproc/pull/855 Fix error in test case by @mwcraig in https://github.com/astropy/ccdproc/pull/859 Bump codecov/codecov-action from 5.0.7 to 5.1.2 in the actions group across 1 directory by @dependabot in https://github.com/astropy/ccdproc/pull/858 Update ruff version by @mwcraig in https://github.com/astropy/ccdproc/pull/860 Full Changelog: https://github.com/astropy/ccdproc/compare/2.4.2...2.4.3.alpha0