User blog comment:Rappy 4187/Technical Update: May 20, 2015/@comment-126761-20150521135003

Though not related to today's release, an update on an issue reported a few weeks ago, where images were sometimes displaying smaller versions than expected (with the effect of appearing blurry or oddly low quality): a fix for this went live some time ago. If you notice any new examples of this, please do let us know via Special:Contact.