diff --git a/changelog/v6.4.3.md b/changelog/v6.4.3.md
new file mode 100644
index 0000000000..fdb89516a5
--- /dev/null
+++ b/changelog/v6.4.3.md
@@ -0,0 +1,29 @@
+# 6.4.3
+
+This is a bugfix release which fixes a performance regression, a rendering issue, and adds improvements to a few examples.
+
+See the [v6.4.0 release notes](https://github.com/openlayers/openlayers/releases/tag/v6.4.0) for a complete list of changes and upgrade notes when upgrading from v6.3.x.
+
+## List of all changes
+
+ * [#11379](https://github.com/openlayers/openlayers/pull/11379) - tooltip bs on fullscreen ([@jipexu](https://github.com/jipexu))
+ * [#11378](https://github.com/openlayers/openlayers/pull/11378) - Fix imageSmoothing: false when ImageStatic is stretched to fit extent ([@mike-000](https://github.com/mike-000))
+ * [#11367](https://github.com/openlayers/openlayers/pull/11367) - Use https for mapbox tiles ([@MoonE](https://github.com/MoonE))
+ * [#11377](https://github.com/openlayers/openlayers/pull/11377) - Only include renderBuffer when decluttering ([@ahocevar](https://github.com/ahocevar))
+ * [#11376](https://github.com/openlayers/openlayers/pull/11376) - Overlay Eample - Show the popup in front of the other overlays ([@MoonE](https://github.com/MoonE))
+
+
+<details>
+  <summary>Dependency Updates</summary>
+
+ * [#11381](https://github.com/openlayers/openlayers/pull/11381) - Bump karma from 5.1.0 to 5.1.1 ([@openlayers](https://github.com/openlayers))
+ * [#11383](https://github.com/openlayers/openlayers/pull/11383) - Bump worker-loader from 2.0.0 to 3.0.0 ([@openlayers](https://github.com/openlayers))
+ * [#11386](https://github.com/openlayers/openlayers/pull/11386) - Bump webpack from 4.44.0 to 4.44.1 ([@openlayers](https://github.com/openlayers))
+ * [#11384](https://github.com/openlayers/openlayers/pull/11384) - Bump @babel/core from 7.10.5 to 7.11.0 ([@openlayers](https://github.com/openlayers))
+ * [#11382](https://github.com/openlayers/openlayers/pull/11382) - Bump mocha from 8.0.1 to 8.1.0 ([@openlayers](https://github.com/openlayers))
+ * [#11385](https://github.com/openlayers/openlayers/pull/11385) - Bump @babel/preset-env from 7.10.4 to 7.11.0 ([@openlayers](https://github.com/openlayers))
+ * [#11387](https://github.com/openlayers/openlayers/pull/11387) - Bump eslint from 7.5.0 to 7.6.0 ([@openlayers](https://github.com/openlayers))
+ * [#11388](https://github.com/openlayers/openlayers/pull/11388) - Bump terser-webpack-plugin from 3.0.7 to 3.0.8 ([@openlayers](https://github.com/openlayers))
+
+
+</details>