Updated readme.txt and changelog.

Author: Michiel Verkoijen

readme.txt

@@ -3,7 +3,7 @@ Contributors: TinyPNG
 Donate link: https://tinypng.com/
 Tags: optimize, compress, shrink, resize, faster, fit, scale, improve, images, tinypng, tinyjpg, jpeg, jpg, png, lossy, jpegmini, crunch, minify, smush, save, bandwidth, website, speed, performance, panda, wordpress app
 Requires at least: 3.0.6
-Tested up to: 4.7.1
+Tested up to: 4.7
 Stable tag: 2.1.0
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
@@ -112,6 +112,7 @@ A: Yes! After installing the plugin, go to *Media > Bulk Optimization*, and clic
 
 = 2.2.0 =
 * New dashboard widget that shows your media library savings.
+* Support compressing medium_large image sizes.
 
 = 2.1.0 =
 * Compression of retina images generated by WP Retina 2x.