Today, the Tor Project announced they are sunsetting some of the oldest and most important encryption algorithms in Tor: the relay encryption algorithm, and replacing them with a research-backed new design called "Counter Galois Onion" (CGO), which will be supported in upcoming Tor and Arti releases.
This is a companion discussion topic for the original entry at https://www.privacyguides.org/news/2025/11/24/tor-project-announces-relay-encryption-scheme-improvements