Java8 not supported with the provided core component .jar

[cuener]

Expected Behaviour
After Installing core components v. 2.27.0 package bundle will start automatically and resolve all dependencies.

Actual Behaviour
The package installs but the bundle doesn't start, throwing an error about missing a requirement of java 11.

Steps to Reproduce
Start an instance of AEM 6.5 running on Java 8
Upload https://codeload.github.com/adobe/aem-core-wcm-components/zip/refs/tags/core.wcm.components.reactor-2.27.0 via packmgr and install.
Note that the bundle doesn't start, and there is an error stack trace in the logs.
Platform and Version
AEM 6.5 on Java 8 SP 20

Logs taken while reproducing problem
Cannot start (org.osgi.framework.BundleException: Unable to resolve com.adobe.cq.core.wcm.components.core [850](R 850.0): missing requirement [com.adobe.cq.core.wcm.components.core [850](R 850.0)] osgi.ee; (&(osgi.ee=JavaSE)(version=11)) Unresolved requirements: [[com.adobe.cq.core.wcm.components.core [850](R 850.0)] osgi.ee; (&(osgi.ee=JavaSE)(version=11))])
org.osgi.framework.BundleException: Unable to resolve com.adobe.cq.core.wcm.components.core [850](R 850.0): missing requirement [com.adobe.cq.core.wcm.components.core [850](R 850.0)] osgi.ee; (&(osgi.ee=JavaSE)(version=11)) Unresolved requirements: [[com.adobe.cq.core.wcm.components.core [850](R 850.0)] osgi.ee; (&(osgi.ee=JavaSE)(version=11))]

aem-core-wcm-components-core.wcm.components.reactor-2.27.0.zip
Manifest-Version: 1.0
...
Bundle-ManifestVersion: 2
Bundle-Name: Adobe Experience Manager Core WCM Components Core Bundle
Bundle-RequiredExecutionEnvironment: JavaSE-11
Bundle-SymbolicName: com.adobe.cq.core.wcm.components.core
Bundle-Version: 2.27.0
...

[krassib]

I am confirming the issue. It seems that starting from 2.26.0 the aem.java.version was bumped to 11.

https://github.com/adobe/aem-core-wcm-components/blob/main/parent/pom.xml#L59

[beo4]

#2755 with this Pull request its introduced. do not understand why this change in conjunction with l18n implies a Java upgrade.
[SITES-21656] OOTB Experience Fragment Localization Issue for /eu/fr Site by @alexandru-stancioiu in #2755

https://github.com/adobe/aem-core-wcm-components/releases/tag/core.wcm.components.reactor-2.26.0
the release notes from 2.26.0 do not state the removal of java 8 support

As far as I understand removing of the Java 8 support should be treated as an incompatible change and should be reflected in an upgrade of major version. version 2.26 and 2.27 should be removed as this leads to compications and replaced with 3.0