Yes, that’s right, if you are using WordPress 1.5.2, then stay where you are, don’t be tempted by the candy that WordPress 2.0 offers you, don’t upgrade yet, especially if you are not of a techy species, that’s a bit of friendly advice from me!! 🙂
Though there’s nothing to worry about, but still, it happens sometimes with some major software upgrades, things go messy. A few things have gone awry with this WordPress release(which is a mammoth upgrade to the core) and they can prove to be too much for the non-techy users who aren’t used to the heat of applications & websites breaking down unexpectedly. I’d say that this release of WordPress can be taken on par with a nightly build, Robert posted few important things that are broken and has striked off those which are fixed in WordPress SVN(Subversion).
So in short, wait for a fixed update before upgrading your WordPress install. I’m also holding off an upgrade here & at diGit Blog since I don’t have time to attend to any crashes etc!! 😉