# v3.12.1

## Summary

The v3.12.1 release is a patch release that addresses a few regressions in the v3.12.0 release.  See the [v3.12.0 release notes](https://github.com/openlayers/openlayers/releases/tag/v3.12.0) for details on upgrading from v3.11.

## Fixes

 * [#4578](https://github.com/openlayers/openlayers/pull/4578) - Fix apidoc landing page markup ([@ahocevar](https://github.com/ahocevar))
 * [#4570](https://github.com/openlayers/openlayers/pull/4570) - Rename defaultSort to numberSafeCompareFunction on ol.array ([@bartvde](https://github.com/bartvde))
 * [#4567](https://github.com/openlayers/openlayers/pull/4567) - Always pass on a compare function to sort ([@bartvde](https://github.com/bartvde))