In general, we do not provide patches for previous releases. This is because you (and we) should keep our software up-to-date.
If you really need a patch for an older version (large, old codebase comes to mind), please write to security@simplexion.hu explaining why you need that. We'll try to work out a solution.
If you notice a vulnerability in Zakadabar Stack, please send an e-mail about the description of the vulnerability to security@simplexion.hu.
The fix will be top priority and will be included in the next release.