How do I cache bust theme updates now?
I've just upgraded from Vanilla 3.3 to 2021.012. I've been releasing tweaks to my forum's theme to fix some UI regressions, but I'm having trouble getting the changes deployed.
Up until now, this has been easy, as incrementing the version in addon.json in the theme directory cache busts all the assets for users, however now the cache querystring is no longer the version from addon.json, but the forum version, i.e. instead of custom.css?v=1.2.3 (where 1.2.3 is the version in addon.php) I now have custom.css?v=2021.012
What is the new pattern for cache busting these sorts of resources?