This post provides links to check the Support Lifecycle, End of Life (EoL), End of Support (EoS), versioning or road map dates for popular operating systems.
List of Links to Operating System Lifecycle Support
OSs featured on this post:
- Red Hat Enterprise Linux
- Oracle Linux
- IBM HCM
- IBM i
- Google Android
Microsoft has created a web where user introduces the Windows product and it displays the dates for end of support.
Also, Microsoft keeps this post updated with lifecycles dates for some Windows products:
Red Hat Enterprise Linux
There is a PDF with this info on this external link.
Apparently Android does not have an official registry of lifecycle, EoL or EoS. Instead, it just stops releasing updates for that version whenever Google considers, as explained on this external link,
As an average, Google provides support 3 years after the initial release, but sometimes is shorter.
You can check the release date and the maintenance status at Wikipedia on this external link.
Portals to check OS Lifecycle
If checking the release date is important for compliance, I would recommend to check the original source from the manufacturer instead of relying on a third party.
Anyway, these are the portals featured on this post: