Update changelog

CHANGELOG.md

@@ -1,5 +1,17 @@
 # rollup changelog
 
+## 2.78.1
+
+_2022-08-19_
+
+### Bug Fixes
+
+- Avoid inferring "arguments" as name for a default export placeholder variable (#4613)
+
+### Pull Requests
+
+- [#4613](https://github.com/rollup/rollup/pull/4613): Prevent using arguments for generated variable names (@lukastaegert)
+
 ## 2.78.0
 
 _2022-08-14_
@@ -12,7 +24,7 @@ _2022-08-14_
 
 ### Pull Requests
 
-- [#4600](https://github.com/rollup/rollup/pull/4591): Allow using objects as hooks to change execution order (@lukastaegert)
+- [#4600](https://github.com/rollup/rollup/pull/4600): Allow using objects as hooks to change execution order (@lukastaegert)
 
 ## 2.77.3