Re: Can not upgrade to 2.6
You should post from now on on the WordPress.org support forum for WordPress help, but we can still help you here since we’re mostly familiar with WordPress and bbPress.
You do *not* need to edit the file, but it looks like you did based on that error, which is why we asked.
I would try uploading all the files again. Maybe something just got corrupted in that one file, or maybe more files.
If you need assistance, please contact me at the website listed in my profile.