What's Changed
* Fix rare VDF prover failures on Windows
* Misc cosmetic changes thanks xearl4!
* Cancellation file support for slow bluebox
* Add _DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR when building wheel on windows
* ApproximateParameter fix and GIL related parameter copies thanks xearl4!
**Full Changelog**: https://github.com/Chia-Network/chiavdf/compare/1.1.7...1.1.8