The typing-related PEP 645 - which introduces the syntax `T?` to mean `Optional[T]` - only has a single substantial related commit in the PEPs repo - the commit introducing the PEP (in Nov 2020) - and no discussions thread that I can find (on typing-sig or elsewhere). I'm personally quite interested in the potential capability to quickly signify `Optional[T]` since it is something I do a lot. What is the status of this PEP? Deferred for now? Withdrawn in favor of `T|None` syntax?† Something else? -- David Foster | Seattle, WA, USA Contributor to TypedDict, mypy, and Python's typing system † Through the grapevine I've been inferring that folks have been gravitating toward the slightly-shorter `T|None` syntax to spell `Optional[T]` in the meantime, and I even mention that spelling in my own PEP 655 (Required[]) [1] [1]: https://peps.python.org/pep-0655/#how-to-teach-this