odpi#5211 add note about upcoming removal of Java 8 support

Signed-off-by: Nigel Jones <[email protected]>

release-notes/release-notes-2-10.md

@@ -7,6 +7,8 @@ Release 2.10 adds:
 * New and improved open metadata types for governance
 * New API for Governance Program OMAS
 
+See also an important notice about removal of Java 8 support in a future release.
+
 Details of these and other changes are in the sections that follow.
 
 ## Description of Changes
@@ -145,6 +147,13 @@ For details on both see the commit history in GitHub.
 * When logging in to the react UI for the coco pharma lab demo, ensure to use http://myhost.mydomain/coco/login as otherwise the login will not work. see [odpi/egeria#41](https://github.com/odpi/egeria-react-ui/issues/41)
 * A few further UI bugs are noted at https://github.com/odpi/egeria/issues/5211#issuecomment-850321243
 
+## Removal of Java 8 Support
+
+Egeria will drop support for Java 8 in a forthcoming release within the next
+few months. We have been building and testing with Java 11 for over a year
+and will move to build all packages with Java 11, and require Java 11. At this
+point Java 8 will no longer be supported for new releases.
+
 # Egeria Implementation Status at Release 2.10
 
 ![Egeria Implementation Status](../open-metadata-publication/website/roadmap/functional-organization-showing-implementation-status-for-2.10.png#pagewidth)