WordPress.com warns that the free blog hosting service will be down for maintenance starting Sunday, February 15, 2009, at 20:00 GMT (noon PST, 3PM EST) for maintenance and upgrade improvements. This should only be a few seconds to a couple minutes. This does not impact full version and self-hosted versions of WordPress.
The maintenance probably involves upgrading to WordPress 2.7.1, server improvements, and possibly the reported news of some “cool gallery features” that may add navigation links for image pages, and other small improvements. Do not expect any major changes to the interface or functionality.
They warn that unsaved work with be lost and you may have to log in again once the system is restored. This means that if you are in the middle of blogging something, it will not be saved and auto-save will not kick in to backup your posts.
I recommend that you save everything you are working on at least two hours before the maintenance down time begins, just in case. If you “need” to blog something, write it up in a text editor or (at the very worst) a word processor and save it there until you can copy and paste or paste using the Word quicktag button in the Visual Text Editor. This is a worst case scenario warning just to be safe.
These maintenance “moments” are rare with WordPress.com. According to Barry in the comments below, expect WordPress.com to be back fully active in less than two minutes.
While waiting for WordPress.com to come back online, consider checking out the I❤ Blogging Design Contest and entering your graphic design to define why you love blogging and WordPress. If your graphic design wins, it could be printed and sold on laptop and iPhone skins around the world through the Infectious store.