Add notice in README about upgrading from earlier versions, update CHANGELOG

Author: SkyLundy

CHANGELOG.md

@@ -1,6 +1,9 @@
 # Fluency for ProcessWire Changelog
 
-### 1.0.10 2024-07-20 Beta
+### 1.0.10 2024-08-10
+
+NOTE: If upgrading from 1.0.8 or earlier it is recommended that you fully uninstall the module
+and then reinstall the module. Issues may be experienced if upgrading directly.
 
 - Fix issue where global excluded strings were not being split correctly in DeepL engine
 - Remove legacy references to previous exclude tag name in DeepL no longer needed since move to

README.md

@@ -12,6 +12,9 @@ Fluency can be used:
 
 You can help make Fluency better by filing Github issues when bugs are found, or submit a pull request with fixes.
 
+**Notes on upgrading Fluency**
+Upgrading from earlier versions to 1.0.8 and earlier may cause errors to occur. It is recommended that versions prior to 1.0.9 be uninstalled and the latest version installed. This will not cause any content loss however the API key must be re-entered and module configuration be completed again.
+
 For support and community discussion about Fluency, visit [the module thread in the ProcessWire forums](https://processwire.com/talk/topic/24567-fluency-the-complete-translation-enhancement-suite-for-processwire/).
 
 ## Contents