openlayers/changelog/v3.18.1.md

# v3.18.1

## Summary

The v3.18.1 release is a patch release that addresses two regressions in the v3.18.0 release.  See the [v3.18.0 release notes](https://github.com/openlayers/openlayers/releases/tag/v3.18.0) for details on upgrading from v3.17.x.

## Fixes

 * [#5798](https://github.com/openlayers/openlayers/pull/5798) - Move to 90° along the circle, not 0° ([@ahocevar](https://github.com/ahocevar))
 * [#5790](https://github.com/openlayers/openlayers/pull/5790) - Fix vector tile rotation on HiDPI devices ([@ahocevar](https://github.com/ahocevar))