WordPress 2.5 doesn’t look much different from the perspective of the reader, but the administrative controls are much slicker. Upgrading seems to be relatively painless, and my plugins seem to work.
One really nice thing is that you can now change the default thumbnail size from within the interface (under Settings > Miscellaneous). My thumbnail size hack can now be cheerfully thrown into the dustbin of historical code.
I remain impressed that the WordPress team continues to produce such excellent free software – the best blogging platform available.
[Update: 14 Apr 2008] WordPress 2.5 seems to have a lot of bugs. Often, it hangs when I try to post comments, then tells me the comments are duplicate. I am getting lots of Error 500 pages. Sometimes, when I make a post WordPress says that it failed. It then becomes a draft with random incorrect categories attached to it.
The new page for writing posts has an awkward layout. The scheduled posts page doesn’t show the time when posts will appear. The image uploader sometimes refuses to let you add titles or descriptions to things you just uploaded, with the option to insert them into posts similarly vanished.
Hopefully, a new version that fixes all these issues will emerge soon.
[Update: 15 Apr 2008] The Flash uploader in WordPress 2.5 is quite terrible.