There will NOT be a FE build for 1.7.2 or 1.7.4. I’m waiting for 1.7.6, due end-March, then I will release a build of FE for it. In the meantime, we are still targeting 1.6.
Likewise, I’m targeting the Forge permissions API for 1.7.6 (it still has to pass Lex QA first)