# 4.6.3

The v4.6.3 release fixes a performance issue when `renderMode: 'image'` is set on an `ol.layer.Vector`.

## Fixes

 * [#7554](https://github.com/openlayers/openlayers/pull/7554) - Only compose image vector frame when the replay group has changed ([@ahocevar](https://github.com/ahocevar))