More Details:
Release notes
All the detailed release notes:
http://yourhead.com/appcast/RW6/Stacks3/release_notes_3.5.0_4091
About betas
Stacks v3.5.0 and Stacks v3.5-beta-23 are identical. Only the version number is different. If you’re using the beta there’s no need to download this release.
If you have the beta version installed, you’ll continue to get beta updates. If you have the release version installed, you’ll continue to get release versions.
Want to join in the betas? Jump over to our Slack channel: http://slack.yourhead.com. We’re always testing the bleeding edge new goodies. hint-hint: four point oh em gee 
About new features
Stacks 3.5.0 is all about the API (read about it in the blog post). We did the same with v1.5 and v2.5: hold the features mostly steady while moving the API forward with a free update. This lets the developers quickly start using the new API features — and all users can get the benefits. But don’t worry — we’re hard at work at all those feature requests too. Please keep them coming!
Getting help
Need help installing? Having difficulty with the update? The place to go is YourHead Support.
Can we ask a favor? If you’re a RapidWeaver pro user, and you see other Stacks users struggling, can you help folks in need find this link: YourHead Support Thanks!
Bug reports and everything else
Have a bug report? Or a feature request? Just want to say, “Hi!”. Just give us a shout, or tweet, or mention, or…
- Send us a tweet on Twitter: http://twitter.com/yourheadsupport
- Join our slack channel: http://slack.yourhead.com
- Post a bug or feature direct to our open bug tracker: https://github.com/yourhead/s3/issues
- Get help from @girlcarew at: http://yourhead.com/support
- Give me a @isaiah mention here on the forum. I can’t respond to every post, there are a lot!, but I do try to look out for @mentions — watch out though — it’s a tricky one to spell.
A big thanks
This release is a huge collaboration between all the stack developers. They all come together, behind the scenes, to quietly test all these changes (sometimes for months!!!) before they see the light of day. Please do me a favor and pass on that gratitude for their hard work. We couldn’t do this without them.