* 📝 Add dark mode auto switch to docs based on OS preference. PR [#4869](https://github.com/tiangolo/fastapi/pull/4869) by [@ComicShrimp](https://github.com/ComicShrimp).
* 🔥 Remove un-used old pending tests, already covered in other places. PR [#4891](https://github.com/tiangolo/fastapi/pull/4891) by [@tiangolo](https://github.com/tiangolo).

protobuf/etcd3 switch, and any changes since the backup will be lost.  As 1.5
does not support protobuf encoding, if you roll back to 1.5 after upgrading to
protobuf you will be forced to restore from backup, and you will lose any changes
since you converted to protobuf.  After conversion to protobuf, you should
validate the correct operation of your cluster thoroughly before returning it
to normal operation.

package gcm import ( "crypto/internal/fips140" "crypto/internal/fips140/aes" _ "crypto/internal/fips140/check" "errors" ) func init() { // Counter KDF covers CMAC per IG 10.3.B, and CMAC covers GCM per IG 10.3.A // Resolution 1.d(i). AES decryption is covered by the CBC CAST in package // crypto/internal/fips140/aes. fips140.CAST("CounterKDF", func() error { key := []byte{ 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, } context := [12]byte{ 0x21, 0x22,...