I can\'t figure out or find the documentation on how to access the source of an old commit in the new Bit Bucket format. Is this even possible anymore?
Great answers from a couple of years ago. Now Bitbucket has made it easier.
Tag the Commit you want to download (as mentioned in answer by Rudy Matela).
Then head over to Downloads and click the "Tags" tab and you'll get multiple options for download.