It just got harder to use a remote editor to blog with WordPress.
The WordPress developers have decided that, starting with WordPress 2.6, access to the XMLRPC and AtomPub-based remote publishing interfaces will be disabled by default. Users who wish to use a remote client such as MarsEdit will have to go out of their way to enable the required functionality in their blog’s settings.
There are good arguments for this, at least on the face of things. They can be packed into a nutshell: it may reduce the security risks of having these access points opened by default.
But in my opinion, there are also good arguments to be made for rejecting the change as a damaging and misguided solution.