Final Decommission Notice for the Legacy YouTube API

[Jeffrey Posnick]

It's been several years since we've released the Google Data-based
YouTube API, and in that time we've been encouraging developers who
used the legacy YouTube API to upgrade before we pull the metaphoric
plug on that older version. At this point, all but a handful of
holdouts have upgraded, and as of November 11, 2009, the legacy
YouTube API will cease operation.

If you're using one of our YouTube API client libraries, then you're
definitely making use of the modern Google Data YouTube API. If you're
manually making HTTP requests to a URL whose hostname contains
gdata.youtube.com, then you're also good to go. If you think you might
still be using the legacy YouTube API but aren't sure, take a look at
some of the example legacy API calls in this migration guide:

http://code.google.com/apis/youtube/migration.html

If it turns out that you are still using the older API, then the
migration guide will give you the information you need to upgrade –
and be sure to do so before November 11!