Cross-platform repository migration with encryption is now supported on both Windows and Linux platform. For details see Cross Platform Repository Migration on Windows and Cross Platform Repository Migration on Linux sections in the Trillium DQ Installation Guide.
Example: Migrating encrypted repositories from Trillium
version 17.2.0 on Red Hat 8 platform to Trillium version 17.3.0 on Red Hat 9 platform is now
possible.