What is git reflog?

Git holds a record of updates to the apex of branches employing a mechanism described reference logs, as known as reflogs. Various Git commands receive a parameter for defining a reference (ref), a pointer to a commit. Typical examples are; git checkout, git reset, git merge, etc.

Reflogs record when refs were refreshed in the local repository and in addition to branch tip reflogs, a special reflog is reserved for the Git stash. Reflogs are filed in directories supporting the local repository's .git directory. git reflog directories can be located at .git/logs/refs/heads/., .git/logs/HEAD, and also .git/logs/refs/stash if the git stash has been employed on the repo.