I've been playing Lapito's Galacticraft 2.1.3, which used minecraft 1.7.10 and included Galaticraft 3, for about a month. I saw an update to the modpack was available via the Technic Launcher, and I avoided it for about a week because I was afraid it would break my world.
My worst fears have been realized! This is why I don't update things unless they are already broken. The 2.1.5 "update" reverted to minecraft 1.6.4 and all of the old versions of the mods. I didn't even start my world because I saw 1.6.4 in the minecraft window when it launched.
On top of that, the Technic Launcher won't let me select 2.1.3 from the version drop down menu, only 2.1.5 is available now, which means there is no way to play my world. Unfortunately, I only backed up my world save, but not all of the mods.
What are my options here? Is this a Technic Launcher issue? I've emailed JAC gaming (they manage the modpack), but no reply yet.