Changed

Updated default solver settings for incompressible elasticity for Schur factoriztion from full to lower.
Set the default length scale to 1 km instead of 100 km for consistency with most quasi-static problem with faults. For simulations with faults, the length scale should be set to the discretization size on the fault; this is related to the preconditioner which links the length scale to the discretization size.
Improved documentation for solver tolerances and adaptive time stepping.
Removed manual marking of buried edges (use automatic marking) in examples and tests.
Updated PETSc version to 3.25.4.

Added

examples/subduction-3d: Added expected Gmsh output for geometric operations in documentation.
Added configure option for pip install without build isolation (--without-build-isolation).

Optimized the check of cohesive cells, which greatly reduces the total time for inserting cohesive cells.
examples/subduction-3d: Increased tolerance for slab surface creation. Fixed setting the mesh filename in parameter files using Cubit mesh.
Corrected documentation for isotropic linear poroelasticity Jacobian terms (Jf3uu and Jf1eu; now matches code).

Removed flag (--output-sync=target) in top-level Makefile.am that is not backwards compatible.

This is the last release for which we will make a binary package for macOS x86_64 (Intel architecture); we plan to continue to make binary packages for Linux x86_64 and macOS arm64.
The macOS x86_64 binary now contains the latest version of Gmsh (4.15.2).