The Debian Project has announced that the codename name of Debian 13 is Trixie. Debian 13 is expected to be released sometime in 2025. Alongside the new name, the project announced that Debian 11 would reach its transition and essentials freeze on 12 January 2021; this is considered the first milestone of Debian 11 which is due for release later in 2021.
The codename Trixie comes from the blue dinosaur in Toy Story 3. Ever since 1996, the Debian Project has opted for Toy Story codenames and has so far used Buzz, Rex, Bo, Hamm, Slink, Potato, Woody, Sarge, Etch, Lenny, Squeeze, Wheezy, Jessie, Stretch, Buster, Bullseye, and Bookworm. The current version, Debian 10 ‘Buster’ was released in July 2019 and will receive security support until 2022 and long-term support until 2024.
As long as everything stays on schedule, Debian 11 ‘Bullseye’ should come out in 2021 and receive long-term support until 2026, Debian 12 ‘Bookworm’ will arrive in 2023 and get long-term support until 2028, and Debian 13 ‘Trixie’ will arrive in 2025 and receive long-term support until 2030.
With regards to the upcoming Debian 11 freeze, package maintainers are being asked to evaluate their plans going forward. Once the freeze occurs, the Debian Project does not want large or disruptive changes to packages as this could make them unstable. Having reliable software in Debian is very important for the project because it is the basis of other distributions such as Ubuntu.