**This version of FastAPI still supports Pydantic v1**. And although Pydantic v1 will be deprecated at some point, it will still be supported for a while.

This means that you can install the new Pydantic v2, and if something fails, you can install Pydantic v1 while you fix any problems you might have, but having the latest FastAPI.

There are **tests for both Pydantic v1 and v2**, and test **coverage** is kept at **100%**.

### Changes

cpu.AMD64 { impl.Register("aes", "AES-NI", &supportsAES) } if cpu.ARM64 { impl.Register("aes", "Armv8.0", &supportsAES) } if cpu.PPC64 || cpu.PPC64le { // The POWER architecture doesn't have a way to turn off AES support // at runtime with GODEBUG=cpu.something=off, so introduce a new GODEBUG // knob for that. It's intentionally only checked at init() time, to // avoid the performance overhead of checking it every time. if godebug.Value("#ppc64aes") == "off" { supportsAES = false } impl.Register("aes",...