--- layout: default title: Sitespeed.io - Release notes 1.5 description: The new release contains four new rules (check out the critical rendering path rule!), a fine tuned SPOF rule, time to first byte, ability to set user agent/viewport, use a proxy and more! author: Peter Hedenskog keywords: sitespeed.io, release, release-notes, 1.5 nav: image: http://sitespeed.io/img/sitespeed-1.5-twitter.jpg twitterdescription: The new release contains four new rules (check out the critical rendering path rule!), a fine tuned SPOF rule, time to first byte, ability to set user agent/viewport, use a proxy and more! ---

Sitespeed 1.5 was released the 6th of January 2013 with the following changes:

New rules

New functionality

Bugfix

Removed functionality

See the changelog for changes done in the past and the next milestone what will come in the next release.