Numba 0.51.2 bugfix release

I’m announcing the release of 0.51.2 bugfix release. It fixes a critical performance bug that leads to exponential time complexity for the compiler. The bug affects 0.51.1. If your Numba functions are taking extremely longer time to compile or the compilation does not seem to complete, upgrading to 0.51.2 should resolve the issue.

Please see changelog for details:

Wheels are in the usual place, and conda packages are in the numba channel:

$ conda install -c numba numba=0.51.2
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