Below are the links for Siteminder product :
1) hotfix including all the CR and SP releases
2) Support Matrix
3) Siteminder EOS
4) Proactive Notifications for Siteminder product
CA SSO
1. hotfix : CA SSO Hotfix Document
2. Matrix: Product Matrix Document
3. EOS/EOL : Release and Support Lifecycle dates document
4. How to get Proactive Notifications : How to get Proactive Notifications