Stable branch release candidates v3.8.5.0-rc1 and v3.9.5.0-rc1 are available at https://github.com/gnuradio/gnuradio/releases. If you are so inclined, give them a spin.
The final releases will be out in January, since the next couple of weeks will be slow for a lot of people. The most interesting changes might be compatibility with Fedora 35 and Qt 6.2. There are also a number of improvements and fixes. See the changelogs in the code for more details.
