I will be on tonight probably - no work tomorrow.
Looks like there are also some misc changes: Bloodhound's scan distance is ramped up by 3x, base slots are 10 instead of 8, but it looks like stuff doesn't stack up as much - ie only 1 grenade/slot and 2 medkits instead of 3. Looks like the Peacekeeper has 1 less in the chamber and slower reload time, and the Sentinel is beefed up a little and has a slightly faster reload.
And about the heirlooms:
Heirloom crafting
We’re changing up the Heirloom system to make it easier for you to acquire the heirloom you want. Instead of an entire Heirloom set dropping at once, you’ll now receive Heirloom shards. You can then use those shards to pick the exact Heirloom set you’d like. The shards will have the same drop rate as the previous system, so that after 500 Apex Packs, you will have enough Heirloom Shards to obtain an Heirloom set from the Heirloom shop. And don’t worry, your existing progress towards the 500 Apex Packs will carry over with the switch. Remember that once a player owns all of the Heirloom sets, the player will not be eligible to receive more shards until more Heirloom Sets are added to the game.
500 Apex packs?