20.0.1 / 2019/11/23

• fixed the way the config module is loaded. __file__ is now available
• fixed wsgi.input_terminated. It is always true.
• use the highest protocol version of openssl by default
• only support Python >= 3.5
• added __repr__ method to Config instance
• fixed support of AIX platform and musl libc in socketfromfd.fromfd function
• fixed support of applications loaded from a factory function
• fixed chunked encoding support to prevent any request smuggling
• Capture os.sendfile before patching in gevent and eventlet workers. fix RecursionError.
• removed locking in reloader when adding new files
• load the WSGI application before the loader to pick up all files

Note

this release add official support for applications loaded from a factory function as documented in Flask and other places.