You can download this Hotfix from TIBCO Support Portal (https://support.tibco.com).  You will need to provide your TIBCO Support Portal credentials.  
Once logged in you can download the hotfix by selecting the “Downloads” -> “Hotfixes” option, then navigate to /AvailableDownloads/BusinessEvents/EnterpriseEdition/5.5.0/hotfix-07 to download the Hotfix.

Alternatively, you can use the direct portal link to download Hotfix-07

https://support.tibco.com/s/hotfixes?id=a011a00000HK75oAAD

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Closed Issues in 5.5.0_HF-007 (This Release)

BE-26895
In WebStudio Classic UI, the following issues occurred:
  1. When you update a business rule and save it, then after closing and 
     reopening the business rule, the updated data was lost.
  2. When you open a business rule from the worklist, the fields in the business 
     rule are editable.

BE-26874
An exception occurred when you create a new instance with extId of a deleted 
instance within the same RTC.

BE-26869
An exception occurred when the Cluster.DataGrid.EvictCache function was used in 
startup rule function and Backing Store Persistence was set to None.

BE-26775    
The Log.log and Log.logException catalog functions were not logging messages 
when the message string contains the percent sign (%).

BE-26774
The server detail was displayed on the Tomcat default error page. This was a 
security risk.
 
BE-26746    
For TIBCO ActiveSpaces 3.x, the Store.get catalog function was not working when
the primary key of TIBCO ActiveSpaces 3.x table had more than one property.

BE-26741
For TIBCO ActiveSpaces 3.x, the Store.get catalog function threw an exception 
instead of NULL, when there was no data to be returned.
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