Difference between IBM Tivoli Directory Server vs IBM Security Directory Server

Question

Please help me understand if these are 2 different products or they are the same. Both are IBM products If different, what are the feature differences

Answer 1

Same product, different name.

https://www.ibm.com/docs/en/sdse/6.3.1?topic=troubleshooting-directory-server-overview

IBM® Security Directory Server, previously known as IBM Tivoli® Directory Server, is the IBM implementation of Lightweight Directory Access Protocol (LDAP). IBM Security Directory Server provides a specialized in which to store, organize, and retrieve information about objects.