checksum feature request

Filipe Maia filipe.c.maia at
Sat May 23 08:09:03 UTC 2020

That's excellent news!

On Sat, 23 May 2020 at 08:11, Wayne Davison via rsync <rsync at>

> On Tue, Oct 1, 2019 at 8:02 AM Bill Wichser via rsync <
> rsync at> wrote:
>> Attached is the patch we applied [to add xxhash checksums]
> Thanks, Bill!  I finally got around to finishing up some checksum
> improvements and have added support for xxhash in the master branch. The
> latest version in git now picks the best checksum algorithm in common
> between the client & server version, and will support future checksum
> algorithms being added without the need for a protocol bump.  It also
> supports a new RSYNC_CHECKSUM_LIST environment variable that allows the
> user to limit what checksum algorithms they want rsync to use (in addition
> to the already existing --checksum-choice=FOO option that forces the
> checksum choice).
> ..wayne..
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