A small update to the LibXML2 Fix WordPress plugin is now available, version 0.2.3.
The only change was the addition of 2.6.27 to the list of libxml versions that the plugin looks for. I’ve had a few reports that this version also has problems with stripping brackets.
For those that haven’t been following this problem here’s [...]

I’ve updated my LibXML2 Fix WordPress plugin so that the work around is enabled even if you have libxml2 2.7.3 installed but have a PHP version that is less that 5.2.9. This should fix servers who decided to update libxml2 without updating PHP.
Further details and history are at my LibXML2 Fix plugin page.
Update: Rein [...]

Despite the libxml2 problems having been solved by the release of PHP 5.2.9 and libxml2 2.7.3 there are still hosts out there who refuse to update their known to be broken setup. This really bummed me out, I didn’t want to include a hack to deal with this in core WordPress.
Just as I was [...]

Updates
17 Mar 2009 @ 3:05pm : WordPress & libxml2 Episode IV: A New Plugin

With the release of PHP 5.2.9 all of the pieces are available to solve the XML bracket stripping puzzle. To make it perfectly clear, you need to have BOTH libxml2 version 2.7.3 and PHP version 5.2.9 in order to make this [...]

Updates
4 Mar 2009 @ 2:38pm : Conclusion of libxml2 Issues – Use PHP 5.2.9 & libxml2 2.7.3

17 Mar 2009 @ 3:05pm : WordPress & libxml2 Episode IV: A New Plugin

At the end of December I detailed problems people were seeing with WordPress, XML-RPC and libxml2. I’ve got good news, both PHP and libxml2 have [...]

Updates
3 Feb 2009 @ 2:00pm : Update on libxml2 issues

4 Mar 2009 @ 2:38pm : Conclusion of libxml2 Issues – Use PHP 5.2.9 & libxml2 2.7.3

17 Mar 2009 @ 3:05pm : WordPress & libxml2 Episode IV: A New Plugin

A gradually growing list of people have run into a very odd problem using XML-RPC methods in [...]