Hotfixes are cumulative. This is the third hotfix for Substation ES 2.12.1.

You can download Hotfix #3 from the TIBCO Support Customer Portal Web UI (https://support.tibco.com).
Log in using your username and password for the TIBCO Support Web page. 

  Select Download
  Select Hotfixes
  Select AvailableDownloads
  Select Mainframe
  Select Substation
  Select 2.12.1
  Select hotfix-3

You should then be able to see and download the files.

TIB_substation_2.12.1_zos.sxs.hotfix_#3.zip

TIB_substation_2.12.1_readme_hotfix.txt

Please note: Non-DFSMSdss installation packages are available by request only.

Listed below is a summary of updates included. Please refer to the associated readme document for any additional information.

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Closed Issues in 2.12.1 hotfix#3 (This Release)

Defect corrections:

  SSES-1726 - Critical
  
  Fixed the RED CICS interface container selection where extra bytes in the
  reply message was added when the reply service is using containers.


  SSES-1723 - High
  
  Fixed #RED transaction handel abend recovery correct. 
  
  
  SSES-1718 - Critical
    
  Fixed #RED transaction handling error message responses to Substation with
  correct header length.