Upgraded to Wordpress 2.1
I have upgraded my blog to Wordpress 2.1. With one exception, the process was fairly painless. The exception was my politics test plugin. The new version of Wordpress was inserting line breaks into the questions. I had to get my fingers dirty and find out what was happening. It turned out that the auto-formatting function [wpautop() in the file ~/wp-includes/formatting.php] had been rewritten so that input XHTML tags were now treated as blocks. The fix was easy: I deleted the input keyword from the list of blocks. I am buggered if I know why they did it.
As far as I can tell, all of my other plugins are now working fine (after the odd random fix). Please let me know if you find any problems with the upgraded site.
On a different matter, when I went on holidays, I introduced a registration requirement before you can post a comment. The registration requirement significantly reduced the daily spam I receive. Consequently, I have decided to keep the requirement.