Flickr also warned users that after a certain date, their photos could be deleted. These major changes were implemented to encourage users to save their personal archives by upgrading to a paid plan.

Flickr's mobile app finally launched in 2009, but it was slow and beset by bugs. When Mayer took charge of Yahoo in 2012, Flickr users hoped it would finally get the attention it deserved.

Flickr isn’t going away, but a lot of your photos will be if you don’t follow its new limitations: 1,000 photos, period.These photos can be any size you want, but you only get a thousand of them.

Flickr is also adding numerous changes and enhancements to the $49.99-per-year Flickr Pro service over the course of the next few months. Paid customers will be given unlimited storage for photos ...