Update CHANGELOG.md

CHANGELOG.md

@@ -2,10 +2,22 @@
 
 ... unreleased features go here
 
+#### Fixed
+
+- Fix `datepicker-dropdown` exception. Regression in 2.13.0. 
+
 ## 2.13.0 (2012-02-23)
 
 > **IMPORTANT:** You must upgrade your copy of `re-com.css` when upgrading to this release.
 
+You also should ugprade your copies of Material Design Iconic Font [CSS and font files](https://github.com/day8/re-com/tree/master/run/resources/public/assets) including:
+- `css/material-design-iconic-font.min.css`
+- `fonts/Material-Design-Iconic-Font.eot`
+- `fonts/Material-Design-Iconic-Font.svg`
+- `fonts/Material-Design-Iconic-Font.ttf`
+- `fonts/Material-Design-Iconic-Font.woff`
+- `fonts/Material-Design-Iconic-Font.woff2`
+
 #### Added
 
 - Add new debugging features, including the new `:src` parameter. [The debug page](https://re-com.day8.com.au/#/debug) explains more.  Note: where previously parameter validation errors raised exceptions, now components instead draw themselves as a red, placeholder box, and write error information to the devtools console. This is a gentler, more informative approach - exceptions are too jarring and result in a blizzard of confusing React stack traces in the console.