Arquillian Core:

Tag: https://github.com/arquillian/arquillian-core/releases/tag/1.9.1.Final
Diff: https://github.com/arquillian/arquillian-core/compare/1.8.1.Final...1.9.1.Final

Arquillian Jakarta

Note the only change here is the version number.

Tag: https://github.com/arquillian/arquillian-jakarta/releases/tag/10.0.0.Final
Diff: https://github.com/arquillian/arquillian-jakarta/compare/1.8.1.Final...10.0.0.Final

WildFly Arquillian

Tag: https://github.com/wildfly/wildfly-arquillian/releases/tag/5.1.0.Beta4
Diff: https://github.com/wildfly/wildfly-arquillian/compare/5.1.0.Beta3...5.1.0.Beta4