Will you update it for Fabric 1.20.4?

the 1.20 version loads in 1.20.4 so I don't see how this is a problem

I'll check if the Modrinth and Curseforge pages have been correctly updated, but yes, the existing 1.20 builds will work on 1.20.4 (and most likely 1.20.5 too once that drops)

Modrinth page is still not updated - https://modrinth.com/mod/alternate-current/versions?g=1.20.4&l=fabric

Modrinth page is still not updated

Thanks for the message, I updated the last 1.20 release.