v4.8.23

Changes

• compiler: Fix handling for determining if functions on subdomains touch the halo @EdCaunt (#2988)
• misc: add a label to prevent submodule trigger @mloubout (#2956)

API

• data: support assigning a value read by window @mloubout (#2985)
• api: fixup complex dtype handling for mpi @mloubout (#2966)

Examples

• misc: Fix notebook rendering @JDBetteridge (#2957)

Documentation

• misc: Fix notebook rendering @JDBetteridge (#2957)

Compiler

• compiler: Avoid int32 overflow in linearized host-device transfer size @gaoflow (#2939)
• compiler: Simplify fission @FabioLuporini (#2973)
• compiler: Minimize code size reusing efuncs as much as possible @FabioLuporini (#2979)
• compiler: Revamp fuse-task optoption @FabioLuporini (#2975)
• compiler: Enable blocking-before-CIRE @FabioLuporini (#2948)
• compiler: Faster compilation time @FabioLuporini (#2949)

MPI

• MPI: revamp mpi indexing for full arbitrary indexing support @mloubout (#2955)

🐛 Bug Fixes

• misc: Fix oversight regarding SparseTimeFunction index errors @EdCaunt (#2989)
• compiler: Fix regressed OpenMP parallelism with CIRE and subdomains @FabioLuporini (#2974)
• mpi: Prevent parallel halo exchanges @FabioLuporini (#2972)
• compiler: Fix topofusion to honour the closest scope @FabioLuporini (#2970)

Testing

• tests: Miscellaneous fixes for the test suite @JDBetteridge (#2929)

Continuous Integration

• ci: Add python 3.14 @FabioLuporini (#2994)

Installation

• pip prod(deps): update pytest requirement from <9.1,>=7.2 to >=9.1.1,<9.2 @dependabot[bot] (#2969)
• pip prod(deps): update fsspec requirement from <2026.6.1 to <2026.7.1 @dependabot[bot] (#2981)
• gh(deps): bump actions/setup-python from 6 to 7 @dependabot[bot] (#2978)
• pip prod(deps): update distributed requirement from <2026.7.1 to <2026.7.2 @dependabot[bot] (#2971)
• pip prod(deps): update pip requirement from >=9.0.1 to >=26.2 @dependabot[bot] (#2982)
• pip prod(deps): update distributed requirement from <2026.6.1 to <2026.7.1 @dependabot[bot] (#2967)
• pip prod(deps): update matplotlib requirement from <3.10.9 to <3.10.10 @dependabot[bot] (#2968)
• pip prod(deps): update cupy-cuda12x requirement from <14.0.2 to <14.1.2 @dependabot[bot] (#2962)
• pip prod(deps): update packaging requirement from <26.2 to <26.3 @dependabot[bot] (#2963)
• pip prod(deps): update mpi4py requirement from <4.1.2 to <4.1.3 @dependabot[bot] (#2964)
• pip prod(deps): update ipyparallel requirement from <9.2 to <9.3 @dependabot[bot] (#2958)
• pip prod(deps): update distributed requirement from <2026.3.1 to <2026.6.1 @dependabot[bot] (#2960)
• pip prod(deps): update fsspec requirement from <2026.3.1 to <2026.6.1 @dependabot[bot] (#2961)
• gh(deps): bump codecov/codecov-action from 6 to 7 @dependabot[bot] (#2947)
• gh(deps): bump actions/checkout from 6 to 7 @dependabot[bot] (#2953)

Full Changelog: v4.8.22...v4.8.23