Build(deps): Update chainladder requirement from >=0.8 to >=0.10.0

[dependabot]

Updates the requirements on chainladder to permit the latest version.

Release notes

Sourced from chainladder's releases.

v0.10.0

Release Date: July 29, 2026

What's Changed

Changes are grouped into the standard categories below. See the Full Changelog link for the complete, unedited list of merged pull requests.

Enhancements

• Add support for pandas 3 and Python 3.14 by @​genedan in #807, #816, #817, #818, #819, #820
• Add geometric averaging type to the Development estimator by @​kennethshsu in #811
• Add TriangleWeight utility class as a public API by @​henrydingliu in #941
• Add DisposalRate method by @​henrydingliu in #1022
• Add multi-triangle (4D) support to MackChainladder by @​henrydingliu in #873, with reconciliation to the Mack papers in #1096
• Add multi-index support to BootstrapODPSample by @​henrydingliu in #917
• Add Triangle.xs by @​henrydingliu in #763
• Add empty attribute to Triangle for pandas consistency by @​priyam0k in #901
• Implement cl.options.describe_option by @​genedan in #877
• Allow DevelopmentConstant to be callable on columns by @​henrydingliu in #796
• Allow different policy lengths in ParallelogramOLF by @​kennethshsu in #772
• Return a Python bool from is_ultimate by @​salexanian in #793
• Add the clrd2025 dataset and centralize sample metadata in a manifest surfaced via list_samples by @​SaguaroDev in #771, #886
• Add Friedland Exhibit III samples and earned premium by @​salexanian in #787
• Add Friedland Chapter 6–7 exhibits by @​henrydingliu in #837
• Add the merged Friedland USPP sample dataset by @​salexanian in #1116
• Add Friedland auto BI, GL insurer, GL self-insurer, and US industry auto premium datasets by @​kennethshsu in #870, #905, #921, #904
• Add Friedland Chapter 9 (Bornhuetter-Ferguson) documentation by @​priyam0k in #1126
• Add pct_reported_ and pct_unreported_ properties by @​priyam0k in #1126
• Add tests for utilities, slicing, dunders/arithmetic, pandas, base, IO, TriangleDisplay, and common behavior by @​genedan in #831, #946, #950, #948, #1038, #1046, #1002, #936, #1083, #1033, #825, #1082
• Replace stale xfails with pytest.raises by @​EKtheSage in #977, #987
• Add coverage and various doctest fixes by @​henrydingliu in #1105, #1099, #1101

Bug Fixes

• Fix sigma_ formula by @​henrydingliu in #965
• Fix Triangle.full_expectation_ by @​henrydingliu in #884
• sparse floor() returns a copy instead of mutating its input by @​SaguaroDev in #894
• Fix DevelopmentConstant tail bug by @​kennethshsu in #923
• Fix drop_high tie-breaking logic by @​etw002 in #1009
• Make quarterly.csv development dates ISO 8601-compatible by @​genedan in #930
• Various Mack fixes by @​henrydingliu in #1097
• Various Friedland data fixes by @​henrydingliu in #927, #967
• Accept string axis in Triangle.drop() by @​priyam0k in #1123

Deprecations & Removals

• Deprecate the dask array backend by @​priyam0k in #937 and the dask parallel-compute (bag) paths in #1008
• Deprecate the cupy array backend by @​priyam0k in #881
• Remove deprecated broadcast_axis by @​kennethshsu in #991

Maintenance

• Add doctest examples across the development, adjustment, tail, ClarkLDF, workflow, and utility estimators by @​EKtheSage in #799, #800, #801, #802, #803, #804
• Add doctest examples for BootstrapODPSample and the correlation classes by @​priyam0k in #836, #844

... (truncated)

Commits

• 2f7a702 Added contributor fullnames and missing tickets
• 8383809 Added contributors full names
• 2289b78 Bump uv
• e4c0ff6 Added release date
• b213147 Sync from main, added a few more updates
• 74126e2 Merge branch 'main' of https://github.com/casact/chainladder-python into rele...
• 6b27aa8 Merge pull request #1141 from casact/dependabot/uv/pillow-12.3.0
• 98d5226 Build(deps): Bump pillow from 12.2.0 to 12.3.0
• 4533ef6 Friedland Chapter 9
• 9058ac5 test(core): compare string vs int axis on original triangle (Bugbot)
• Additional commits viewable in compare view

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