I didn't think blobstore migration was supported until a few months into next year - I'll try and dig out which thread specified the timescales.
Until it's supported, you have to manually migrate all of your blobstore contents. Cheers, Simon -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/0HzMw98DyoEJ. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.