Simon

Yoast have released a 5.3 beta that fixes the Toolbar and some other issues.
Info and download here

I cannot speak of other issues, but it does fix the frontend Toolbar issue for me.

The two that I know of were cleaner gallery and WordPress beautification.
However the last time it stopped working, neither of them was active and it was after the latest coookie control update.
I tried it on an empty test site with a protheme, CPO Themes Brilliance, uninstalled and reinstalled PC and it worked for a few seconds never to be seen again, but never felt the inclination to play hide and seek any further.

I’d like to know too..

It conflicts with a number of plugins, which when disabled cookie control works ok, so if you need any of the plugins, and of course you do or you wouldn’t have them, then cookie control is currently a junker with it’s low comparability with other plugins.

The issue is that the meta charset="UTF-8 is placed under the W3 code, so that needs to be plugin issue fix I think.
However.

Disabling The CSS style sheet (not inline CSS) minify setting is a workaround fix for me, if that is not enabled, it should validate.

My personal experience and therefore may not the the fix in your case.

There is a conflict with Jquery colorbox if you use the “Use jQuery library from Google” option.

I have Graphene and WP 3.2, I have not experienced any issues.
Though wise to do a backup before you do it.

I was in a similar situation a while ago and decided to give Multisite a go for ease of a single network login etc, also I think that Multisite would take less server space than several single WP sites, though this maynot be an issue, also only a single upgrade of the next WP etc.
You can also add a development site in your network so you can use that to play/experiment with, if you make a mistake, no real harm done.

One thing I would suggest is to use the domain mapping plugin so you can have domain names instead of sub domains or sub directories, domain mapping is a little tricky to setup if you are new to WP, as I was, but there are some good tutorials and YouTube videos on how to do it.

I think that going the Multisite is a good route if you think you are going to have several blogs.

The only drawback I have found is that one or two plugins don’t work for a network, but there often seems to be a network version.

But, hey ho, I’m pretty new to WP, so some more experienced users may have better advice.

@ aelabalos

I had a custom permalink of
/%day%/%monthnum%/%year%/%postname%/
Which seems to have changed during the upgrade, and a category base of “Photography” which was removed during the upgrade and therefore was reset to the WP default, which broke all my tags and category links.

Other than that no issues so far.

No issues, except for…

If you are using custom permalinks and or category/tag base, you may need to reset these after upgrading to WordPress 3.2. When I upgraded it broke all the tag and category permalinks until I re-saved my custom structure.