Release v0.3.5 contains a bug fix, and some new features.

Download the archive file for your operating system and Maya version, and follow the INSTALL.md instructions.

Below is a list of the new features, changes and bug fixes in v0.3.5.

New Features

Changes

Fixed annoying selection callback bug - Parenting using the native Maya "p" hotkey failed to re-parent a transform node (fixed in commit c87bfd6).
Query the SolverWindow class instance failed when the class was valid; now fixed.
Sphinx Auto-Doc Mocking has been improved so that UIs now have documentation.

Solver engine can become slow with many attributes.
New v0.3.0 default values will not be used until a new Collection is created. Delete your previous Collection and create a new Collection using the Solver UI > File > New Collection menu item.
The Maya viewport is refreshed during solving to force Maya to evaluate all nodes in the solve. This causes slower performance (e.g. 6 seconds verses 30 seconds), but ensures accurate solver results. Users may wish to turn this feature off in the Solver UI > Edit > Refresh Viewport check box.
The test suite fails on 3 different solver tests, due to a deviation that is too high, this is intentional and will be fixed in a future version.
The test suite fails to run on Maya 2018 with mayapy, the cause is unknown.
The mmSolverType command raises an error with certain flags on Maya 2016 for an unknown reason. This problem is specific to Maya 2016, the same command works on Maya 2017+.