A couple server side changes we did in the last couple of days, chunkloading now runs offline for 48 hours after you last logged in to make resource gathering easier. After those two days your chunkloading is removed and you have to manually readd it to your chunks.
Now to the pack, big Mekanism changes in this one, it got completely rebalanced to be more in line with other mods power production. Other than that, maybe half a dozen mods were added and various recipes fixes.
0.48 - https://www.curseforge.com/minecraft/modpacks/all-the-mods-10/files/5702860
0.49 - https://www.curseforge.com/minecraft/modpacks/all-the-mods-10/files/5708853
0.50 - https://www.curseforge.com/minecraft/modpacks/all-the-mods-10/files/5711274
0.51 - https://www.curseforge.com/minecraft/modpacks/all-the-mods-10/files/5711752
0.52 - https://www.curseforge.com/minecraft/modpacks/all-the-mods-10/files/5712125