Git: the first eleven (11) and twelve (12) characters of the hash of a commit

<https://lists.freebsd.org/pipermail/freebsd-current/2020-December/077949.html>

On 24/12/2020 04:06, Warner Losh wrote:

> Re: referencing one commit in another for git
…

>>> For MFCs we are recommending the first 11. I think this
>>> will likely suffice and matches the git client behavior.
>> Mercurial defaults to 12 digit abbreviation. Git
>> abbreviates linux, freebsd-legacy, freebsd-ports repos
>> on GitHub to 12 digit.
> I've updated to 12. That sounds like a good number of
> digits...Thanks.
>
> Warner


I might have asked something this before (sorry):

* what, ultimately, was the main reason for going with eleven?

For consistency, to match the git client behaviour?