v0.11.3 (16 July 2026)

This patch release fixes xgcm 0.10 compatibility by translating xCDAT’s legacy grid options to the new padding API. This restores vertical regridding without requiring caller changes. The minimum xgcm version is now 0.10.0, which is required for the new padding API. It also constrains regionmask >=0.11.0 for numpy 2.0 compatibility.

Bug Fixes

• Fix xgcm 0.10 padding compatibility by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/840

DevOps

• Constrain regionmask >=0.11.0 for numpy 2.0 compatibility by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/838

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.11.2...0.11.3

v0.11.2 (02 February 2026)

This patch release fixes coordinate assignment behavior and attributes dropping in the PCMDI land sea masking API. It also improves documentation around the default use of cftime in xCDAT.

Bug Fixes

• Replace in-place .values assignment with assign_coords() by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/827
• Fix attributes dropping in pcmdi_land_sea_mask() due to change in Xarray 2026.01.0 by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/829

Documentation

• Update cftime section in FAQs by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/828

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.11.1...v0.11.2

v0.11.1 (06 January 2026)

This patch release adds supports for Python 3.14.

DevOps

• Add support for Python 3.14 by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/822

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.11.0...v0.11.1

v0.11.0 (03 December 2025)

This minor release includes enhancements, bug fixes, and documentation updates. Key changes introduce land–sea mask generation support, faster startup times through deferred xgcm imports, improved logging consistency, and fixes for attribute handling issues introduced in Xarray v2025.11.0.

Enhancements

• Adds land-sea mask generation by @jasonb5 in https://github.com/xCDAT/xcdat/pull/783
• Defer xgcm import to speed up xcdat startup time by ~3 seconds by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/810

Bug Fixes

• Fix attributes behavior change due to Xarray v2025.11.0 by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/818
• Pins Xarray <2025.11.0 by @jasonb5 in https://github.com/xCDAT/xcdat/pull/815
• Refactor xCDAT logging for consistency and safety by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/811

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.10.1...v0.11.0

v0.10.1 (01 October 2025)

This patch release introduces bug fixes, documentation updates, and DevOps changes, including constraining cf_xarray >=0.10.7, preserving Xarray legacy behaviors for open_mfdataset() with compat and join arguments to prevent unexpected breaking changes for users, dropping Python 3.10 support, and adding PyAOS to the endorsements list.

Bug Fixes

• Constrain cf_xarray >=0.10.7 by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/804. This constraint is necessary because cf_xarray=0.10.7 introduces a fix to bounds_to_vertices(), enabling support for non-monotonic bounds and propagating correct regridding results in xESMF for such cases (refer to https://github.com/xarray-contrib/cf-xarray/pull/579).

Documentation

• Add PyAOS to list of endorsements by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/802

DevOps

• Preserve Xarray legacy compat and join behaviors by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/800. This change was made to maintain consistent functionality across environments after Xarray updates, preventing unexpected breaking changes for downstream users.
• Drop Python 3.10 support by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/794

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.10.0...v0.10.1

v0.10.0 (27 Aug 2025)

This release introduces a new weight threshold option for temporal operations, improves regridding alignment, and fixes multiple issues with xgcm.Grid and xESMF integration. It also includes a DevOps fix to maintain consistency in handling xgcm.Grid metadata.

Enhancements

• Add weight threshold option for temporal operations by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/683

Bug Fixes

• Remove mask from create_grid() output to prevent xESMF issue by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/786
• Fix xgcm.Grid errors by passing autoparse_metadata=False by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/785
• Fix regrid2 alignment of output and input dims for final dataarray by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/782

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.9.1...v0.10.0

v0.9.1 (08 July 2025)

This patch release includes enhancements to bounds handling, improved error messages, and documentation updates.

Enhancements

• Update get_bounds_dim() to dynamically get correct dim by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/773

Bug Fixes

• Fix get_bounds() error message by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/776

Documentation

• Add create_mask() and create_nan_mask() to API reference page by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/774

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.9.0...v0.9.1

v0.9.0 (02 June 2025)

This release introduces key functional and performance enhancements across regridding, averaging, and coordinate handling workflows. Users can now output regridding weights and infer vertical target data, improving flexibility in vertical and horizontal transformations. Time frequency inference logic is more robust through median delta computation, and new options for skipna handling and spatial weight thresholds support more accurate and configurable statistical operations. Additional improvements to coordinate handling enable support for curvilinear grids. The release also includes critical bug fixes, expanded documentation, and updated compatibility for modern Python environments by dropping Python 3.9 and adding compatibility with Python 3.13.

Enhancements

• Adds option to output regridding weights and create mask for regridding by @jasonb5 in https://github.com/xCDAT/xcdat/pull/752
• Adds ability to infer target data for vertical regridding by @jasonb5 in https://github.com/xCDAT/xcdat/pull/756
• Use the median of the delta instead of min for time freq inference by @chengzhuzhang in https://github.com/xCDAT/xcdat/pull/768
• Add weight threshold option for spatial averaging by @pochedls in https://github.com/xCDAT/xcdat/pull/672
• Enable skipna for spatial and temporal mean operations by @lee1043 in https://github.com/xCDAT/xcdat/pull/655
• Enhance coordinate handling and add curvilinear dataset support by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/736

Bug Fixes

• Eliminate performance bottleneck in temporal.group_average() by @will-s-hart in https://github.com/xCDAT/xcdat/pull/767
• Fix incorrect dimension used for temporal weights generation by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/749

Documentation

• Add .zenodo.json and CITATION.cff to cite core authors by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/759
• Replace support section with endorsements by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/757
• Add xCDAT tutorial datasets and update gallery notebooks by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/705
• Add endorsement section to docs with Xarray, Pangeo, and WCRP by @tomvothecoder in
  https://github.com/xCDAT/xcdat/pull/741, https://github.com/xCDAT/xcdat/pull/742, https://github.com/xCDAT/xcdat/pull/757

DevOps

• Make scipy a required dependency by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/765
• Drop Python 3.9 support and add compatibility for Python 3.13 by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/721

New Contributors

• @will-s-hart made their first contribution in https://github.com/xCDAT/xcdat/pull/767

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.8.0...v0.9.0

v0.8.0 (14 February 2025)

This minor release introduces a new feature for temporal averaging with custom seasons spanning the calendar year. It also includes the ability to detect and drop incomplete seasons using the drop_incomplete_season config, which will eventually replace drop_incomplete_djf (previously limited to DJF seasons). Additionally, a bug in the regrid2 regridder has been fixed, ensuring coordinates are now preserved correctly.

Enhancements

• Add support for custom seasons spanning calendar years by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/423

Bug Fixes

• Fixes preserving coordinates in regrid2 by @jasonb5 and @tomvothecoder in https://github.com/xCDAT/xcdat/pull/716
• Fix DeprecationWarning and FutureWarning found in test suite by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/724

Documentation

• Replace Miniconda with Miniforge by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/727
• Update Miniconda references to Miniforge in HPC docs by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/731

DevOps

• Update pre-commit hooks and add ci config by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/732
• Fix DeprecationWarning and FutureWarning found in test suite by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/724

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.7.3...v0.8.0

v0.7.3 (06 November 2024)

This patch release updates the NumPy constraint to numpy >=2.0.0,<3.0.0 to ensure compatibility with NumPy 2.0 (which introduces breaking changes). It also fixes a bug in the get_bounds() method where bounds could not be found on supported non-CF axes (e.g., “latitude”, “longitude”, etc.) even with the "bounds" attribute set on the axes.

Bug Fixes

• Update get_bounds() to support mappable non-CF axes using "bounds" attr by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/708

Documentation

• Add link to SciPy talk in docs by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/704

DevOps

• Adopt ruff as the central tool for linting, formatting, and import sorting by @tomvothecoder in https://github.com/xCDAT/xcdat/pull/702
• Update numpy constraint to >=2.0.0,<3.0.0 by @tomvothecoder and @xylar in https://github.com/xCDAT/xcdat/pull/711, https://github.com/xCDAT/xcdat/pull/712
• Replace setup.py with pyproject.toml for modern Python packaging by @tomvothecoder and @xylar in https://github.com/xCDAT/xcdat/pull/712

Full Changelog: https://github.com/xCDAT/xcdat/compare/v0.7.2...v0.7.3