Tarsnap 1.0.40 (February 10, 2022)

Version 1.0.40 of the Tarsnap client code is now available for download. This version adds the ability to resume an interrupted extraction, display additional progress information, and read the passphrase from an environment variable or a file. This release also has improved performance on some x86, amd64, and arm64 systems by using cryptographic instruction set extensions.

Bitcoin support ending on April 1st - January 28, 2018

On April 1st, Tarsnap will stop accepting payments via bitcoins. For more details, see the email announcement.

Tarsnap 1.0.39 released - July 29, 2017

Version 1.0.39 of the Tarsnap client code is now available for download. This version corrects several bugs which could cause tarsnap to crash when handling corrupt data.

Tarsnap 1.0.38 released - July 15, 2017

Version 1.0.38 of the Tarsnap client code is now available for download. This version brings support for OpenSSL 1.1; several new options, including --archive-names <filename>, which makes it easier to operate on multiple archives at once; and some display tweaks for improved usability.

Tarsnap 1.0.37 released - March 10, 2016

Version 1.0.37 of the Tarsnap client code is now available for download. This version adds several new options, including --passphrase-time option for increased security of passphrase-protected key files, along with minor bug fixes and some additional warnings about common user errors.

Tarsnap 1.0.36 released - August 21, 2015

Version 1.0.36 of the Tarsnap client code is now available for download. This version fixes a theoretically exploitable one-byte buffer overflow when archiving objects with long path names; a vulnerability which allows a corrupt archive to crash tarsnap; and two bugs which cause tarsnap to crash if the network is inoperative when it launches. This version also adds support for performing "dry runs" without tarsnap keys, which makes it possible to estimate tarsnap usage costs without first creating a tarsnap account.

Tarsnap book - March 18, 2015

Tarsnap Mastery, a book from respected technical author Michael W. Lucas about using Tarsnap, is now available in electronic and print formats.

Price cut - April 2, 2014

Effective April 1st, Tarsnap's prices are now 250 picodollars per byte-month of storage and per byte of bandwidth ($0.25 / GB), down from the previous pricing of $0.30/GB.

Bitcoin support - March 27, 2014

Tarsnap now accepts payment in bitcoins. For more details, see the author's blog post.

FreeBSD Foundation sponsorship - September 28, 2013

Tarsnap Backup Inc. is proud to be a 2013 Silver Sponsor of the FreeBSD Foundation.

Tarsnap 1.0.35 released - July 25, 2013

Version 1.0.35 of the Tarsnap client code is now available for download. This version fixes a bug in tarsnap 1.0.34 which could cause it to crash during network glitches and outages.

Tarsnap 1.0.34 released - July 13, 2013

Version 1.0.34 of the Tarsnap client code is now available for download. This version brings automatic support for IPv6, support for ARM OABI and some other embedded platforms, improved resilience against minor network glitches, and several minor bug fixes.

Open Source sponsorship - April 27, 2013

Tarsnap Backup Inc. is proud to be a 2013 Bronze Sponsor of the FreeBSD Foundation and a Silver Sponsor of BSDCan 2013.

Tarsnap 1.0.33 released - August 10, 2012

Version 1.0.33 of the Tarsnap client code is now available for download. This version brings a 10-30% reduction in memory usage, a significant speedup in "fsck" and multi-archive deletes, and some bug fixes.

FreeBSD Foundation sponsorship - May 12, 2012

Tarsnap Backup Inc. is proud to be a 2012 Bronze Sponsor of the FreeBSD Foundation.

Tarsnap 1.0.32 released - February 22, 2012

Version 1.0.32 of the Tarsnap client code is now available for download. This version brings a bug fix to the --nodump option on Linux and a workaround for a compiler bug in OS X 10.7 (Lion).

Tarsnap 1.0.31 released - November 17, 2011

Version 1.0.31 of the Tarsnap client code is now available for download. This version brings two security fixes relating to key generation on multi-user systems, support for Minix, and several minor features and bug fixes.

Tarsnap 1.0.30 released - August 25, 2011

Version 1.0.30 "bug bounty edition" of the Tarsnap client code is now available for download. This version brings numerous minor bug fixes.

Tarsnap bug bounties - April 21, 2011

Bug bounties ranging from $1 up to $2000 are now available for anyone who finds and reports a bug in Tarsnap.

Tarsnap 1.0.29 released - February 7, 2011

Version 1.0.29 of the Tarsnap client code is now available for download. This version brings new tarsnap-keyregen and tarsnap-recrypt utilities for downloading, decrypting, re-encrypting, and re-uploading Tarsnap data (aka. key rotation).

Tarsnap 1.0.28 released - January 18, 2011

Version 1.0.28 of the Tarsnap client code has been released with a critical bug fix. Tarsnap users are strongly encouraged to upgrade to the version 1.0.28 immediately.

Supporting the FreeBSD Foundation - December 1, 2010

All profits made by Tarsnap in December 2010 will be donated to the FreeBSD Foundation.

Tarsnap 1.0.27 released - June 27, 2010

Version 1.0.27 of the Tarsnap client code is now available for download. This version brings several new features, including the ability to pass multiple -f <archive> options to tarsnap -d and tarsnap --print-stats, automatic exclusion of synthetic filesystems, and the ability to regenerate cached state without requiring delete access keys.

Tarsnap 1.0.26 released - December 24, 2009

Version 1.0.26 of the Tarsnap client code has been released. This version brings improvements to the Tarsnap client-server protocol in order to avoid dropped connections (and associated warning messages), a bug fix to the --maxbw-rate family of command-line options, improved documentation, and other minor changes.

Supporting the FreeBSD Foundation - December 8, 2009

All profits made by Tarsnap in December 2009 will be donated to the FreeBSD Foundation.

CGI scripts moved - October 7, 2009

The CGI scripts responsible for account creation, confirmation, and management have moved from their old location on beta.tarsnap.com to this new website. In the unlikely event that you encounter any errors, please contact the author to let him know.

New website - September 14, 2009

Tarsnap now has a non-minimalist website, bringing together information which used to be spread between the author's blog, a separate beta-testing website, and a multitude of emails and forum posts scattered around the internet.

Thanks to the #tarsnap IRC channel and the readership of Innocuous News for looking at drafts and helping out by pointing out mistakes and suggesting improvements to the web design.

Mailing lists - July 18, 2009

Tarsnap now has four mailing lists: tarsnap-announce@tarsnap.com (announcements of new versions of the tarsnap client code and other generally useful Tarsnap news), tarsnap-users@tarsnap.com (general tarsnap-related discussion), tarsnap-alphatest@tarsnap.com (pre-release testing of new client code), and scrypt@tarsnap.com (discussion of the scrypt key derivation function). For more information and to subscribe, see the Tarsnap mailing lists page.

IRC channel - July 18, 2009

There is now an official IRC channel for Tarsnap-related discussion: #tarsnap on EFnet.

Tarsnap 1.0.25 released - July 10, 2009

Version 1.0.25 of the Tarsnap client code has been released. This version brings some portability improvements for Windows and Solaris, and new configuration file options, and new command-line options for overriding values set in configuration files.