1
Pre 1.12 packs
(lemmy.world)
I'm sure it's not what you are looking for, but GT New Horizons is a 1.7.10 pack actively being updated :) (version 2.3.4 was 11-Jun-2023)
I can't think of any others off the top of my head.
Reika's mod pack maybe? I think at this point that doesn't really extend beyond updating Reika's mods to their new versions when one gets released (so twice a year or so), but that's still more activity than basically any non-GT 1.7.10 pack.
This community is dedicated to Modded Minecraft for Minecraft Java Edition. Whether you're an experienced modder or just getting started, this is the place to discuss, share knowledge, and connect with fellow Minecraft enthusiasts.
Join us in exploring the world of Modded Minecraft!