Hello, I am still (relatively) new to the forums so please don't kill me if I put this in the wrong section.
Recently, I noticed that the version of Minecraft Forge that Technic distributes for 1.12.2 is outdated. Currently, version 220.127.116.1124 is used by Technic mod packs, and the new version is 18.104.22.16847.
While this could be considered a beta version of Forge, the most recent official version of JEI (Just Enough Items) requires this version. Several other major mods may also require it, however I have not bothered to check around for this. My (hidden) mod pack also requires thi