This hot fix can be downloaded from the SFDC Customer Portal Web UI, using your username and password for support.tibco.com.  Once logged on you can find the hotfix under Download Menu :

AvailableDownloads/BusinessWorks/Plugins/REST_JSON/2.1.0/hotfix-07

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 Issues in 2.1.0_HF-007 (This Release)

Defect ID: REST-1674

    Jackson and related jars were upgraded from 2.8.11 to version 2.10.0

Defect ID: REST-1660

    Added support of Security Vendor Bouncy Castle in REST plugin.

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