We have Data Center version 9.4.5. I was only able to figure out how to compare two commits and had to enter the hash IDs, which is tedious (copy/paste save, copy/paste). HEAD and HEAD^ didn't seem to work.
Bonus trailing question: Is there a way to ask this tool: https://confluence.atlassian.com/support/atlassian-support-ai-chat-1455423797.html
my question? That page does not describe how to access it it. Is it only available on Cloud Products?