A new patch (5315_20180409) is available for CM1 5.3 SR1. This patch is a roll-up of all prior patch releases and includes new defect corrections, updates, and features.
The Release Notes can be found on the help site and contain the complete list of changes.
The patch may be downloaded from the support portal.
Please let us know if you have any questions.
Awesome! Does this patch resolve the LDAP issue or only 5.4?
Your LDAP issue is unique to your environment and has to do with the way SSL is deployed in your directory system.
The Security provider update in this Patch may help with your LDAP issue but that scenario wasn’t included as part of the patch testing.
The support team should have provided you with a manual work around that should resolve the problem, pre 5.4 release, if that didn’t happen let me know, and I will follow-up with the team.