Added:

• Added functions renf_elem_addmul and renf_elem_submul to compute res += a * b and res -= a * b with fewer temporaries. In the C++ interface, these methods are called iaddmul and isubmul.

Changed:

• Changed the documentation build to use breathe & sphinx instead of standardese & sphinx.
• Changed the recommended setup for developers to use pixi instead of conda/mamba. See the README for details.
• Changed configure to not complain when test-requirements such as byexample, benchmark, realalg, or SageMath are missing. (The tests are included if the dependencies are detected but just disabled otherwise without the need for --without-byexample --without-benchmark --without-sage --without-realalg.)

Removed:

• Removed binder demo from our README (we do not think that anybody has been using it never really worked great.)

Fixed:

• Fixed build issues with FLINT 3.2.2.
• Fixed dependency tracking when configure is rerun with different compiler flags by tracking config.h in all source files.