Changes

• misc: Remove (object) in class definitions @EdCaunt (#2378)

API

• mpi: Fix data_gather for sparse functions @mloubout (#2379)
• API: Revamp sparse subfunction @mloubout (#2374)
• api: fix corner case staggered fd for centered x0 @mloubout (#2373)
• api: cleanup FD tools and support zeroth order derivative @mloubout (#2368)

Examples

• examples: Add an example notebook for ADER-FD schemes @EdCaunt (#2338)
• examples: fix tuto numbering for doc rendering @mloubout (#2367)

Documentation

• examples: fix tuto numbering for doc rendering @mloubout (#2367)

Compiler

• compiler: Misc compiler improvements @FabioLuporini (#2380)
• compiler: Support for C-level MPI_Allreduce @FabioLuporini (#2344)
• compiler: sequentialise halo touch @mloubout (#2372)
• compiler: Fix placement of ConditionalDimension in subdomain @georgebisbas (#2050)

MPI

• mpi: Fix data_gather for sparse functions @mloubout (#2379)
• ci: tweak mpi setup to allow -s and hide output @mloubout (#2350)

Architectures and JIT

• arch: Ensure compiler check catches permission errors @gbruer15 (#2340)

🐛 Bug Fixes

• tests: Fixup conftest's set_run_reset() @FabioLuporini (#2381)
• mpi: Fix data_gather for sparse functions @mloubout (#2379)
• dsl: Correct retention of wrong branch in filter_ordered @EdCaunt (#2377)
• api: Always expand time derivatives @mloubout (#2369)
• dsl: Patch edge-case derivative specifications @EdCaunt (#2366)
• compiler: Fix placement of ConditionalDimension in subdomain @georgebisbas (#2050)

Testing

• ci: tweak mpi setup to allow -s and hide output @mloubout (#2350)

Continuous Integration

• CI: fix decoupler config to use correct python @mloubout (#2382)
• arch: Ensure compiler check catches permission errors @gbruer15 (#2340)

Installation

• reqs: Update cached_property to functools version @EdCaunt (#2359)
• docker: Drop unused mpi4 and fix nvhpc mpi4py setup @mloubout (#2365)

New Contributors

• @gbruer15 made their first contribution in #2340

Full Changelog: v4.8.6...v4.8.7