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Trend Micro will provide support for program builds 18 months after the month it is released.
For example, if Apex One SP1 was released sometime within December 2022, this program build will only be supported until the end of June 2024.

For fixes that require a program update, the update will be created based on the latest build. Build-specific updates are not available.

Trend Micro Apex One On-premise will receive regular patch release twice a year (1st & 3rd quarter).
Trend Micro Apex One as a Service will receive monthly maintenance updates.

 
Trend Micro Apex Central on-premise will follow the same policy as well.
 

Customers are recommended to apply latest patch releases to maintain up to date fixes and security enhancements.