url: /setup/upgrade-notes/
---
+## Release 9.1 Upgrade Notes
+**Custom measures feature has been dropped**
+The custom measures feature, which was previously deprecated, has been removed. ([SONAR-10762)[https://jira.sonarsource.com/browse/SONAR-10762]).
+
## Release 9.0 Upgrade Notes
**Scanners require Java 11**
Java 11 is required for SonarQube scanners. Use of Java 8 is no longer supported. See the documentation on [Moving Analysis to Java 11](/analysis/analysis-with-java-11/) for more information. ([MMF-2051](https://jira.sonarsource.com/browse/MMF-2051)).