This hot fix can be downloaded from the TIBCO Product Support file transfer server, mft.tibco.com, using your username and password for the TIBCO Support Web. You can use FTP, SFTP (FTP or SFTP use requires an FTP / SFTP client or command-line FTP), or your web browser at https://mft.tibco.com (requires Java applet support in your browser). Once logged on you can find the hot fix under:
/AvailableDownloads/BusinessWorks/Plugins/SWIFT/5.12.0/hotfix01
Listed below is a summary of updates included. Please refer to the associated read me document for any additional information.

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Closed Issue in 5.12.0_HF-001

SWFT-1390
When upgrading a project from version 5.11 to version 5.12, the 2014
Specification was not loaded for all activities if you selected the
2014 Specification from the Specification list in the SWIFT Schema Loader panel.

Note: With this fix process files might still show old year, but correct
specification year is picked up at runtime from SWIFT Schema Loader.