Modeler 12.4.2 is now available for download from the Support Portal https://ssl.salesforce.com/sserv/login.jsp?orgId=00D00000000CHYV
If you don't have a login, you can request one at http://www.datawatch.com/support/
The release notes are available here: Modeler 12.4.2 ReleaseNotes
Here's a quick summary:
This version reinstates the Monarch Utility, which is used for mass conversion and editing of Models and Projects.
This release of Monarch utility supports the following:
This version is also Section 508 compliant.