The patch notes do not reveal any new weapons or Operations mode maps, so it seems the focus here is squarely on Siege, which arrives in fully fleshed out form as part of Patch 8 on June 26. But ...

Here is everything included in Warhammer 40,000: Space Marine 2’s Update 8.0 patch notes. Warhammer 40,000: Space Marine 2 Update 8.0 Patch Notes Warhammer 40K: Space Marine 2 Blood Angel Champion.

Creative Assembly has dropped Patch 6.2.2 for Total War: Warhammer 3, bringing improvements to the Warriors of Chaos campaign, performance enhancements, and numerous faction-balancing adjustments.