Only 6 months left for Solaris 10 and 11.3

Oracle does provide patches under Extended Support for 
Solaris 10 and Solaris 11.3 till January 2027. 

The dates are documented in 
https://www.oracle.com/us/support/library/lifetime-support-hardware-301321.pdf

You can continue to run this Solaris versions, but who does
that without new patches and the security risks?

Migrate to Solaris 11.4, which will receive patches and new features
till January 2037 for sure, probably longer. Oracle extended
this date in the past already several times.

For Solaris 11.3 systems it is just SRU updates to Solaris 11.4.
For Solaris 10 you have to move the systems into Solaris branded zones
on Solaris 11.4. Your Solaris 10 apps and binaries will then run on 
a current Solaris 11.4 kernel.

If you need help with such migrations you can use our JomaSoft
VDCF management tool and we offer migration and consulting services.

https://www.jomasoft.ch

Oracle offers Extended Support for Solaris 11.4 now till at least 2037

In 2023 Oracle has changed the Extended Support for Solaris 10 and Solaris 11.3
from January 2025 to January 2027.

Now Oracle adds another 3 years to Solaris 11.4 to November 2037.
This is a long term commitment I'm not aware of any other OS vendor.
New features are delivered every quarter using SRUs.

You can find all the Support dates in

http://www.oracle.com/us/support/library/lifetime-support-hardware-301321.pdf

Current State and Updates for Oracle Solaris 01/2022

Oracle Solaris 11.4 is supported by Oracle at *least* till 11/2034.
I'm not aware of any other Vendor with such a long term guarantee.

Today, 18th January 2022 the SRU41 (CPU JAN 2022) was released.
All the details on MOS in Doc 2433412.1
Every quarter a CPU (Critical Patch Update) is made available,
which is recommended to be installed on production systems.

Every month after the CPU a SRU with several new features
is released. Stay tunned for February 2022 !

Additionally Patches for Solaris 10 and ESU for Solaris 11.3
was made available. This updates are only available for Customers
with "Extended/Vintage Support"

Solaris 11.3 ESU 36.27   MOS 2759706.1
Solaris 10   a few new patches

This Extended Support for the older Solaris Releases ends on 01/2024.
Time to plan and prepare upgrades to Solaris 11.4.