After upgrading to 2.6 from 2.3, two issues occurred:
1. I write my blog in MS WORD and cut and paste it to the blog. Been doing this for a year with no problems.
After upgrading, line spaces between paragraphs, although showing in the "write" section of the blog, wouldn't transfer to the actuall blog itself. I had to put period onm a separate line as a work-around.
2. gibberish and code appears on previous blogs articles. You can check it all out at http://howiebarte.com/WordPress and email me at email@example.com (that's a number "one" not a letter "el" after the last "a").
Thanks in advance for any help.