The Liberty-for-Java Buildpack v3.59 adds Liberty runtime 21.0.0.7 as the alternate runtime and keeps 21.0.0.6 as the default runtime.
The IBM JRE (8 SR6 FP31) and AdoptOpenJDK Open J9 alternate JRE (11.0.11_9_openj9-0.26.0) remains the same.
This buildpack contains two production versions of Liberty — a default version that remains constant for approximately three months and the latest version, as an alternate.
An existing application will not be affected by the new buildpack until you redeploy or restage it. After redeployment, existing applications should continue to run "as is" without any additional changes. New applications will automatically use the new buildpack.
