* Parallelize matrix simplification
by dweindl in https://github.com/AMICI-dev/AMICI/pull/1778
* Validate PEtab problems before attempting import
by dweindl in https://github.com/AMICI-dev/AMICI/pull/1842
* Improved type annotations for the swig interface
by dweindl in https://github.com/AMICI-dev/AMICI/pull/1860
Fixes:
* Fixed an issue with potentially infinite loops during conservation law
processing by FFroehlich in https://github.com/AMICI-dev/AMICI/pull/1833
* Fixed potential deadlocks during parallel simplification
by dweindl in https://github.com/AMICI-dev/AMICI/pull/1844
* Fix resetting `ReturnData::numstepsB` when re-using Solver
by dweindl in https://github.com/AMICI-dev/AMICI/pull/1841
And further contributions by dilpath, dweindl, FFroehlich
**Full Changelog**:
https://github.com/AMICI-dev/AMICI/compare/v0.11.32...v0.12.0