update changelog

CHANGELOG.md

@@ -4,25 +4,20 @@
 
 ## [2.6.3](https://github.com/gdsfactory/ubc/releases/tag/v2.6.3) - 2024-09-28
 
-No significant changes.
-
+- Update gdsfactory889 [#404](https://github.com/gdsfactory/ubc/pull/404)
 
 ## [2.6.2](https://github.com/gdsfactory/ubc/releases/tag/v2.6.2) - 2024-09-04
 
 - remove old mmi2x2 [#400](https://github.com/gdsfactory/ubc/pull/400)
 - update gdsfactory 862 [#399](https://github.com/gdsfactory/ubc/pull/399)
 
-
 ## [2.6.1](https://github.com/gdsfactory/ubc/releases/tag/v2.6.1) - 2024-07-27
 
-No significant changes.
-
 
 ## [2.6.0](https://github.com/gdsfactory/ubc/releases/tag/v2.6.0) - 2024-07-15
 
 - update to gdsfactory8
 
-
 ## [2.5.0](https://github.com/gdsfactory/ubc/releases/tag/v2.5.0) - 2024-03-24
 
 - Update gdsfactory to latest version 7.23 [#370](https://github.com/gdsfactory/ubc/pull/370)