* **Massive performance improvements (10-40%!)**
* CPU and memory timings have been corrected* (passes Blargg's tests!)
* If you're making a plugin, then note that `post_tick` is now only called once at the end of `pyboy.tick`. Not for every frame.
* Clarify in docs that reads from `pyboy.memory` might return a memoryview in the future.
* If you're running pytest locally, `TEST_CI` has been removed and you now have to specifically set `TEST_VERBOSE_IMAGES=1` to see debug images.
*If you depend on exact timing of a frame (assume a specific start block in Tetris etc.) then expect these to have changed. This change improves emulation correctness, and I cannot promise specific frame timings between releases.