The TikiWiki Devel team have addressed these issues, and updates are available at their official website. I was VERY impressed with the way these guys handled the situation. Due to the size of the project, and the way some of these issues spanned across seemingly hundreds of files there was a great amount of work to be done.

Please see:

SF release notes
SF mailing list tiki-dev message

New TikiLight package is available for testing!

Special thanks to mose