This issue does not impact the Deep Security Agent version 20.0.0-1540 when deployed as an agent.

Trend Micro has removed the Deep Security Agent version 20.0.0-1540 for Linux from the Trend Micro Software Download Center. 

Details

• 2020/11/26: Deep Security Agent version 20.0.0-1540 for Linux was released to both the Trend Micro Software Download Center and Cloud One Workload Security
• 2020/12/1: Deep Security Agent version 20.0.0-1540 for Linux was removed from the Trend Micro Software Download Center. 

If you have installed Deep Security Agent version 20.0.0-1540 for Linux as a relay, Trend Micro recommends that you uninstall this version of the relay and replace it with version 20.0.0-1337 as soon as possible.  If you had deployed Deep Security Agent version 20.0.0-1540 as agents they will continue to work with the DS 20 version 20.0.0-1337 relay.

A new release of the Deep Security Agent for Linux to correct this issue will be released shortly.