We have security releases of the blog module available: 0.3.1 and 0.4.1
Thanks to everyone who gave us bug reports on our release candidates. The release is now stable and ready for production use!
Download here: http://www.silverstripe.org/assets/modules/stable/blog-v0.3.1.tar.gz and http://www.silverstripe.org/assets/modules/stable/blog-v0.4.1.tar.gz
Post bug reports here: http://open.silverstripe.org
Thanks,
Phalkunz