You can download Hotfix #1 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 2.14.0
  Select hotfix-1

You should then be able to see and download the files.
TIB_substation_2.14.0_zos.sxs.hotfix_#1.zip
TIB_substation_2.14.0_readme_hotfix.txt

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

Closed issues in Hotfix #1:

  SSES-2111 - High

  When doing Request/Reply using containers and the reply requires with more
  than 20 containers, #RED abends in CICS. #RED now allows now for 
  127 containers on reply.
  Corrected and fixed.


  SSES-2106 - Critical

  Function Obtain_ErrInfo abends on 0C4. Corrected and fixed.


  SSES-2095 - High  

  UoW updates for improved stress reporting and handling. Changed messages 
  SXG2131I and SXG2133W to include the current UoW allocation.
  

  SSES-2087 - CICS  

  Added new parameter <CorId (N,Y)> to SXC3I032 (SXT6) sample program.
   

  SSES-2080 - ESB Critical 

  Added new parameter for a RVDQ scheduler to set the completion time for 
  task scheduled for a worker. The parameter is RVDQ-SETCOMPTIME. 
  Vaild values are 0 - 30 seconds. Zero (0) is the default.


  SSES-2075 - Critical      

  Substation ES now allows a trigger service using containers to include a 
  correlation ID container, where the output message will be sent by 
  Substation ES with JMSCorrelationID property for EMS, or tibss-CorrelationId 
  as a field for RV.


  SSES-2071 - Critical      

  Fixed Substation ES to allow Recipes with Method of Reply = 0 | 1 to be able  
  to forward the Correlation ID and the Service REPLY-TO value as separate 
  container fields to the BES application.