Pyrefly is not the first Python type-checking tool from Meta. Previously, the company delivered Pyre, written in OCaml. Pyre ...

We recommend that all developers upgrade to Python 3.8 and newer as soon as they can. Support for Python 3.7 will be removed from this library after January 1 2024. Previous releases that support ...

Read more in the documentation on ReadTheDocs. View the change log. To issue the next version in line, specify which part to bump, like make release bump=minor or make release bump=devnum. This is ...