There is a 'pre-release' of Adaptable 220.127.116.11 for Moodle 3.10 is available for testing on a test server 'only' on https://gitlab.com/jezhops/moodle-theme_adaptable/-/releases/18.104.22.168-pre. Download the archive in the format desired and extract the contained folder, then rename that folder from 'moodle-theme_adaptable-22.214.171.124-pre' to 'adaptable' and place in the 'theme' folder of your test server - DO NOT overwrite an existing folder but if you have one already rename it and move it elsewhere.
DO NOT install on a production server. The version number will not change when I release on Moodle.org at a later date and thus you won't get an update notification and could experience odd issues if you manually update.
I cannot stress enough that this version is for 'Test Servers' only! Ones that don't matter if they break.
Please report any issues with this version only here.