OpenSSL 3.0 (and 3.0.1, 3.0.2 etc) has now been designated a Long Term Support release, with security and bug fixes until 7th September 2026. ICS users are recommended to update to V8.68 or later and OpenSSL 3.0 for long term support.
The current LTS release 1.1.1 will continue to be supported until 11th September 2023. The older 1.0.2 release only receives security fixes if you have a paid support contract with OpenSSL.
The next main release will be OpenSSL 3.1.0 with initial support for QUIC which is needed for HTTP/3, but it may take a couple of years for all the work to be completed, they plan to release updates every six months.
Angus