0.20.0

Upgrades

• Python 3.13 support #994
• Python 3.14 support #1045
• Support aioitertools 0.13 #1039
• Allow FastAPI 0.120 and Starlette 0.49 #1027

Backward incompatibilities

• Python 3.8 support dropped #994

Fixes

• Accomodate type changes in werkzeug 3.1.4, resolve CVE-2025-66221 #1041