DOC: Finalize 0.4.7 release notes (#1323)

Author: mattwthompson

docs/releasehistory.md

@@ -11,7 +11,7 @@ Dates are given in YYYY-MM-DD format.
 
 Please note that all releases prior to a version 1.0.0 are considered pre-releases and many API changes will come before a stable release.
 
-## Current development
+## 0.4.7 - 2025-09-11
 
 ### Bug fixes