OK, so we know that WordPress 2.6.1 was released on 15th August 2008. But should I upgrade? Maybe not. The reason is that I’m lazy of doing it and it’s also stated explicitly that:
If you’re happy with 2.6, however, keep on using it. You need not upgrade to 2.6.1 if 2.6 is getting the job done.
So why even bother? I’m waiting for WordPress 2.7 instead which promises a couple of new features.