Hi Alec,

Hope you are doing well!

At the moment, we don’t have an activity posted to conversations when the subject is changed. While this isn’t something that we currently display, we do have an idea for this in our product idea portal here, and would love to see your vote added onto it.

Adding a vote and submissions of new ideas to the idea portal submit the feedback directly with our product team and also helps us share updates via email to share updates to its status and if we are able to roll it out in a future update!
 

Hi alec_badillo,

Front doesn't directly show a history of email subject line changes.

Possible Workarounds:

 * Rules & Tags:

   * Create a rule to add a tag on subject change.