# Wagtail 1.8.1 release notes

*January 26, 2017*

> * [What’s changed](#what-s-changed)

## What’s changed

### Bug fixes

* Reduced `Rendition.focal_point_key` field length to prevent migration failure when upgrading to Wagtail 1.8 on MySQL with `utf8` character encoding (Andy Chosak, Matt Westcott)
