Plans for Debian 12?

I am a long-time user of LibreWolf, and I'm currently running Debian 11 "Bullseye". A new major version, Debian 12 "Bookworm", is due to be released on the 10th.

However, on the website, I have noticed that the only supported versions of Debian are bullseye and sid. I have also checked the repo itself, and found no mention of bookworm.

Will there be a repo for bookworm? If so, when? And is it safe to remain on the bullseye repo while running bookworm?

Thanks!

EDIT: Flatpak and AppImage are viable alternatives for me, but I'd prefer to use apt.