Merge branch 'develop' into develop-2.10

docs/administration/replicating-netbox.md

@@ -73,8 +73,9 @@ tar -xf netbox_media.tar.gz
 
 ## Cache Invalidation
 
-If you are migrating your instance of NetBox to a different machine, be sure to first invalidate the cache by performing this command:
+If you are migrating your instance of NetBox to a different machine, be sure to first invalidate the cache on the original instance by issuing the `invalidate all` management command (within the Python virtual environment):
 
 ```no-highlight
-python3 manage.py invalidate all
+# source /opt/netbox/venv/bin/activate
+(venv) # python3 manage.py invalidate all
 ```

docs/release-notes/version-2.9.md

@@ -1,5 +1,19 @@
 # NetBox v2.9
 
+## v2.9.9 (FUTURE)
+
+### Enhancements
+
+* [#5304](https://github.com/netbox-community/netbox/issues/5304) - Return server error messages as JSON when handling REST API requests
+* [#5310](https://github.com/netbox-community/netbox/issues/5310) - Link to rack groups within rack list table
+
+### Bug Fixes
+
+* [#5271](https://github.com/netbox-community/netbox/issues/5271) - Fix auto-population of region field when editing a device
+
+
+---
+
 ## v2.9.8 (2020-10-30)
 
 ### Enhancements