Added
* The `File` model now has an `is_spoiler` field indicating whether the image was a "spoiler" image
(by [cooperwalbrun](https://github.com/cooperwalbrun))
Changed
* The `get_threads()` method no longer iterates through a board's pages; instead, it directly
scrapes threads from the catalog for the given board (by
[cooperwalbrun](https://github.com/cooperwalbrun))
Removed
* Support for Python 3.9 has been removed; `pychan` will now only build for Python 3.10 and 3.11 (by
[cooperwalbrun](https://github.com/cooperwalbrun))