On April 10, 2017, Symantec announced the release of Symantec Data Loss Prevention 14.6 Maintenance Pack 1 (MP1).
The 14.6 MP1 release does not contain new features, as is the case for any Maintenance Pack. The MP1 release consolidates hot fixes and provides improvements to various issues.
Because Maintenance Packs are restricted to defect fixes only, with no changes to features or to the database schema, Symantec recommneds that you immediately apply MP1 to your version 14.6 deployment. Applying MP1 ensures that your Data Loss Prevention environment is up to date and it also optimizes technical support for your deployment.