This article contains the complete list of changes implemented in ORF 5.3 compared to the previous 5.2 release.

Changes in version ORF 5.3

• NEW: Microsoft® Exchange 2013 Edge Transport Server support
  ORF is now fully compatible with the Edge Transport Server role introduced in Microsoft® Exchange 2013 SP1. Please read our related Knowledge Base article for more information about deploying ORF on different Exchange 2013 roles.
• NEW: Automatic detection of the Transport Agents defect of Microsoft® Exchange 2013 SP1
  Microsoft® Exchange 2013 SP1 was shipped with a critical flaw (see Microsoft Knowledge Base Article 2938053). The ORF Setup now detects the defect and refuses to install on an unpatched  SP1 installation, and the ORF Service will now log errors if it finds the underlying Exchange installation unpatched.
• BUGFIX:
  All known bugs fixed.