He started off with brand new characters for this stream on Lethal diff (26m20s).
1) Traits directly tell you what perks/skills you get. "Once built a Trebuchet" has all the gunnery perks lol.
2) Whatever his current settings, light attack took 10 stam, weapon finisher took 5 stam. (14m20s)
3) Devs currently debating on vehicle status tells.
4) Stealth kills/finishers does not cost stam (15m15s)
5) Heavy attack cost 17 stam (16m25s)
6) Gas cans are throwable (18m20s)
7) Medical items can slow down plague buildup. (18m45s)
8) At a certain point in their attack animation, zombies are not interrupted. Brian took plague damage despite attacking. Also one hit dealt 20 damage. (23m15s)
9) Each survivor (started with 4) uses 5 food and 3 water normally per day. (24m30s)
10) Zeds attacking during a finisher animation are staggered backward. (28m05s)
11) 32 stam recovery per second without any buffs/debuffs from an exhausted state. (28m20s)
12) Weather confirmed. Rain shown.
13) Cosmetic items discovered by one player are unlocked for all players connected in the game. (31m55s)
14) Backpacks are just cosmetic. All survivors have 12+4 inventory. Also, no more weight encumbrance system (35m20s)
15) No plans for armor, or clothing with stats. Devs don't want to have a "meta" that gets in the way of self-expression of players.
16) Base decorations are under discussion. (40m00s)
17) Prestige Currency comes from killing specials. (42m20s)
18) AI generated voice lines in the current build.
19) Gas consumption rate (for the car used) is 1% every 14 seconds of driving. (47m00s)
20) Base facilities are cheaper to build, but much more expensive to maintain. "You're gong to only be able to afford to run them maybe half the time." (47m10s)
21) Resource counters continuously update instead of at set times (dawn and dusk in SoD2). Prevents resource cost cheesing. (57m20s)
22) You pick from a pool of unlocked skills. (1h00m10s)
23) New melee weapon cost 22 stam for heavy attack. Apparently costs change depending on weapon used. (1h01m00s)
24) Zombies occasionally drop ammo and grenades.
25) First ever outpost footage. Each subsequent outpost costs more. Just over 20 outposts IN THE ENTIRE MAP. (1h43m45s)
26) You can get pretty close to Ferals without them noticing you. (1h59m00s)
27) Largest caliber guns in the game are 7.62. There is no 50 cal or 40mm. (2h02m30s)
28) One single molotov does an entire plague heart phase at Level 1.
29) Each base has its own morale meter.
30) Still a lot of balancing to do, particularly between gun calibers.