I was a bit worried when I foresaw WP 2.9 showing up around Christmas. So much so, in fact, that Semiologic Pro users were prompted to disable core updates until WP 2.9.1. And rightly so: very nasty niggles showed up when it got released.
On the bright side, WP 2.9 might be the shortest lived major WordPress release yet. WP 2.9.1 RC1 is officially in the wild, a mere 10 days after WP 2.9. At the time of writing, 23 bugs were fixed; over half of them were major.
When it gets released, I’ll feel quite comfortable upgrading this site. So should you.
In other news, a large batch of plugin updates are on the way. They’ll be released alongside WP 2.9, so you can upgrade everything at once. As previously noted, nearly all of these updates are optimizations that are related to the coming Semiologic Cache 2.0.
Regarding the new cache plugin, special thanks go to Mark (Golf Guide). He has been doing his very best to break the plugin in the past weeks. I’ll be releasing RC1 in the next few days. I’ll open a forum thread when I do.
To help out with testing at that stage, toggle Bleeding Edge packages under Settings / Semiologic API Key. Be sure to choose a site with moderate importance, rather than a mere test site; the site needs some traffic for the tests to make any sense, but not so much that you cannot afford it to be quirky until we look into it (which can be minutes or hours).