Rebellion has released several free and paid DLC weapon packs (like the Mosin-Nagant and Kar98) and three major DLC missions (Kraken Awakes, etc.). Repacks rarely get updated. You are stuck with the Day 1 patch forever.
Current "Gold Standard" Repacks:
While the Sniper Elite 5 repack offers several benefits, there are also considerations to keep in mind: sniper elite 5 repack