PostWe've just released v13.8.

We've just released v13.8. Thank you to everyone who contributed to this release. As usual, upgrade using pip install -U python-telegram-bot. This release brings support for Bot API 5.4 as well as some bug fixes. For the full list of changes and improvements, please see below. Please note that we are currently working towards v14 and will only make another 13.x.y release if there are serious bugs to be fixed or API updates to implement. As stated in our announcement from January, we don't know how long development for v14 will take. We expect v14 to be ready sometime in 2022. Major Changes: • Full support for API 5.4 (#2767) Minor changes, CI improvements, Doc fixes and Type hinting: • Create Issue Template Forms (#2689 by abxhr) • Fix camelCase Functions in ExtBot (#2659 by OctoNezd) • Fix Empty Captions not Being Passed by Bot.copy_message (#2651 by DonalDuck004) • Fix Setting Thumbs When Uploading A Single File (#2583 by paradox70) • Fix Bug in BasePersistence.insert/replace_bot for Objects with __dict__ not in __slots__ (#2603)