Hello folks.
I have upgraded this blog to WordPress 2.8 codenamed Baker, thanks to Twitter’s (follow me) trending topics option. I upgraded my blog manually by uploading the latest WordPress tar file on my website’s root folder and untar-ing it on my server thru SSH. It was my first time to access my web server thru SSH as I only had my shell access activated today.
The upgrade process went smoothly. Since I already had access to my web server’s shell, I was able to fix all security issues especially the permissions stuff. The process of changing the permissions was smooth, I just used issued the chmod 755 /wp-includes /wp-admin -R command.
One of my favorite features introduced in WordPress 2.8 is the syntax highlighting (they call it CodePress). It’s easier to identify functions, html tags, attributes and parameters now. One thing I don’t like in CodePress though is that it doesn’t produce a tab (the whitespace) when the TAB button is pressed, instead it shifts its focus to the next clickable element just like before. An autocomplete feature for CodePress would also be a very great idea.
Other new features are the theme browser, improved screen options and some speed optimizations.
The only problem I encountered was when making a post, specifically saving it (even as a draft). It dumps the following error: Fatal error: Call to undefined method SearchSpider::_weak_escape() in /some_path/here on line 478. After Googling the problem, I learned that it was caused by the Search Unleashed plug-in. I had no other choice but to disable it.
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Lucky for me, all of the plugins I’m using are compatible with WP 2.8
Though the syntax highlighting seems not to work on Google Chrome.
lucky for me too!
I’ve upgraded all my blogs, except my main blog. Hehe 
I’m still waiting for the worst case scenario before I’ll upgrade my main site
hehe
did you encountered any problems in upgrading it..mine also im still waiting and making survey on problems encountered in the updates.