Base Game Updates
You can now collect Memories of significant moments in your Sims’ lives in the new Scrapbook. Custom Memories can also be created using the Capture This Moment tool. All Memories can be uploaded and shared on TheSims3.com and Facebook!
You can now adjust the lifespan length for each individual phase of life that a Sim goes through via the Options menu.
Live Mode
Sims can now ask other Sims out on dates!
Sims will now be given a Romantic Reputation based on their social interactions in the local dating scene.
Create a Sim
Body hair can now be applied on male Sims, from head to toe!
Build/Buy Mode
Players can now use the Catalog Filter in Build and Buy Mode to sort Content from different installed Expansion Packs and Stuff Packs, as well as content from The Sims 3 Store.
World Adventures
Additional bug fixes and polish to existing features
Ambitions
Additional bug fixes and polish to existing features
Late Night
Additional bug fixes and polish to existing features
Generations
Additional bug fixes and polish to existing feature
What I'm most interested here is the last part. I'd like to be notified of anything that needs corrected on the guide because of this patch. Maybe they fixed a few things we unfortunately had to mark as bugged on the guide. Running through it myself would be tough, so I'd like to have the community's help figuring out exactly what's fixed to make the guide as accurate as possible.
EDIT: After installng, I'm up to version 1.22.9. 600 megabytes of patch, maybe that's the real meat of all the fixes. I suppose it's a separate update for Generations only, while 1.21.123 is for vanilla or other EP owners.