If Percona XtraDB Cluster 5.5 supported yet?

No updates since 5.5.41-25.12 at 2016-09-22. Even for critical MySQL vulnerabilities like this: [url]CVE - CVE-2017-3651

I coulnd’t find any information about release cycle/end of life on the web.

Hi there, I apologise for the delay in replying…

For future use, the life cycle / end of life (EoL) information for Percona Software can be found here [url]Percona Release Lifecycle Overview

As you’ll see in Software Lifecycle Matrix, there was a notification back in September 2016 for EoL on Percona XtraDB Cluster 5.5. - I will check to make sure that this URL is easily found in the future.

As you’ve said, there are vulnerabilities in 5.5. that mean that it’s important to take some action. Our guide to upgrade to 5.6 can be found here [url]Percona XtraDB Cluster and with the many improvements over 5.5 in both release 5.6 and 5.7, unless you’ve a really pressing need to stay with 5.5. it makes sense to do the upgrade.

We’d recommend that you move to 5.7 if you possibly can.