Awesome update, as usual !
I'm afraid some retroactive achievements still aren't working properly, I'm not sure which should or not be awarded reatroactively but here's a list of some I haven't unlock while having definitely completed the recquirements (I have 350+ hours in the game for reference and play since update 14).
I did get some achievements first time I launched the game since update 24 (miner / expert miner / legendary miner / advanced robotics / Feelin' Perky / Exploring my options), but not other:
// should be retroactive but bugged from my understanding
- Management Approves (locked at 13/25 but I have only 3 milestones left total)
- Movin' On Up (dwarves are Driller Silver 2 / Engi silver 2 / Gunner Bronze 3 / Scout gold 3, all promotion achievements are at 0 / N)
- Corporate Climber
- Hat Trick
- Full team Ahead
- Silver-Tier Employee
- Gold-Tier Employee
- Pro-Team (should be 3/4 is 0/4)
- Legendary-Team (should be 1/4 is 0/4)
// don't know if these should be retroactive
- Approved Greenbeard (I unlocked it after completing a new assignment)
- Mini Fixer
- Now We Have a BET-C
- Big Game Hunter
- Jeweler
- Prospector
- Going Lethal
- Mutated Scavenger
- Good Shepherd
// didn't manage to make work
- Total Makover (maybe I didn't understood ? Tried to buy all new accessories of each slot and equipped them but it changed nothing, some dwarves were already fully accesorized with non-default items)
Hope this helps !