I know version 9.5 is out of support. Instead, I am trying to update to version 10.5 and I am looking for the link to download.
Release : 9.5
Component : Introscope
10.5 is also End Of Service. Please see our CA APM Release and Support Lifecycle Dates in the link below.
You can however download 10.7 as that is still in support.
You can upgrade 9.5 to 10.7 provided the OS you are currently running is supported on 10.7. Please review the 10.7 compatibility guide below, in the tab Introscope Upgrades.