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7050ANNOUNCING Tahoe, the Least-Authority File System, v1.7.0

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  • zookog
    Jun 21, 2010
      ANNOUNCING Tahoe, the Least-Authority File System, v1.7.0

      The Tahoe-LAFS team is pleased to announce the immediate
      availability of version 1.7.0 of Tahoe-LAFS, an extremely
      reliable distributed storage system.

      Tahoe-LAFS is the first distributed storage system which offers
      "provider-independent security"â€"meaning that not even the
      operator of your storage server can read or alter your data
      without your consent. Here is the one-page explanation of its
      unique security and fault-tolerance properties:


      Tahoe-LAFS v1.7.0 is the successor to v1.6.1, which was released
      February 27, 2010 [1].

      v1.7.0 is a major new release with new features and bugfixes. It
      adds a fully functional SFTP interface, support for non-ASCII character
      encodings, and a new upload algorithm which guarantees that each file
      is spread over multiple servers for fault-tolerance. See the NEWS file
      [2] for details.


      With Tahoe-LAFS, you distribute your filesystem across multiple
      servers, and even if some of the servers are compromised by
      by an attacker, the entire filesystem continues to work
      correctly, and continues to preserve your privacy and
      security. You can easily share specific files and directories
      with other people.

      In addition to the core storage system itself, volunteers have
      built other projects on top of Tahoe-LAFS and have integrated
      Tahoe-LAFS with existing systems.

      These include frontends for Windows, Macintosh, JavaScript,
      iPhone, and Android, and plugins for Hadoop, bzr, mercurial,
      duplicity, TiddlyWiki, and more. See the Related Projects page
      on the wiki [3].

      We believe that strong cryptography, Free and Open Source
      Software, erasure coding, and principled engineering practices
      make Tahoe-LAFS safer than RAID, removable drive, tape,
      on-line backup or "cloud storage" systems.

      This software is developed under test-driven development, and
      there are no known bugs or security flaws which would
      compromise confidentiality or data integrity under recommended
      use. (For all currently known issues please see the
      known_issues.txt file [4].)


      This release is fully compatible with the version 1 series of
      Tahoe-LAFS. Clients from this release can write files and
      directories in the format used by clients of all versions back
      to v1.0 (which was released March 25, 2008). Clients from this
      release can read files and directories produced by clients of
      all versions since v1.0. Servers from this release can serve
      clients of all versions back to v1.0 and clients from this
      release can use servers of all versions back to v1.0.

      This is the ninth release in the version 1 series. This series
      of Tahoe-LAFS will be actively supported and maintained for
      the forseeable future, and future versions of Tahoe-LAFS will
      retain the ability to read and write files compatible with
      Tahoe-LAFS v1.


      You may use this package under the GNU General Public License,
      version 2 or, at your option, any later version. See the file
      "COPYING.GPL" [5] for the terms of the GNU General Public
      License, version 2.

      You may use this package under the Transitive Grace Period
      Public Licence, version 1 or, at your option, any later
      version. (The Transitive Grace Period Public Licence has
      requirements similar to the GPL except that it allows you to
      wait for up to twelve months after you redistribute a derived
      work before releasing the source code of your derived work.)
      See the file "COPYING.TGPPL.html" [6] for the terms of the
      Transitive Grace Period Public Licence, version 1.

      (You may choose to use this package under the terms of either
      licence, at your option.)


      Tahoe-LAFS works on Linux, Mac OS X, Windows, Cygwin, Solaris,
      *BSD, and probably most other systems. Start with
      "docs/quickstart.html" [7].


      Please join us on the mailing list [8]. Patches are gratefully
      accepted -- the RoadMap page [9] shows the next improvements
      that we plan to make and CREDITS [10] lists the names of people
      who've contributed to the project. The Dev page [11] contains
      resources for hackers.


      Tahoe-LAFS was originally developed by Allmydata, Inc., a
      provider of commercial backup services. After discontinuing
      funding of Tahoe-LAFS R&D in early 2009, they have continued
      to provide servers, bandwidth, small personal gifts as tokens
      of appreciation, and bug reports. Thank you to Allmydata,
      Inc. for their generous and public-spirited support.

      Google, Inc. is sponsoring Tahoe-LAFS development as part of
      the Google Summer of Code 2010. Google suggested that we
      should apply for the Summer of Code program, and when we did
      they generously awarded four sponsorships to students from
      around the world to hack on Tahoe-LAFS this summer. Thank you
      to Google, Inc. for their generous and public-spirited


      If you can find a security flaw in Tahoe-LAFS which is serious
      enough that feel compelled to warn our users and issue a fix,
      then we will award you with a customized t-shirts with your
      exploit printed on it and add you to the "Hack Tahoe-LAFS Hall
      Of Fame" [12].


      This is the fifth release of Tahoe-LAFS to be created solely
      as a labor of love by volunteers. Thank you very much to the
      team of "hackers in the public interest" who make Tahoe-LAFS
      possible. In this release we especially owe thanks to
      David-Sarah Hopwood, who has dedicated many late nights to the
      project and displayed superb software engineering skills.

      Zooko Wilcox-O'Hearn
      on behalf of the Tahoe-LAFS team

      June 18, 2010
      Boulder, Colorado, USA

      [1] http://tahoe-lafs.org/trac/tahoe/browser/relnotes.txt?rev=4244
      [2] http://tahoe-lafs.org/trac/tahoe/browser/NEWS?rev=4254
      [3] http://tahoe-lafs.org/trac/tahoe/wiki/RelatedProjects
      [4] http://tahoe-lafs.org/trac/tahoe/browser/docs/known_issues.txt
      [5] http://tahoe-lafs.org/trac/tahoe/browser/COPYING.GPL
      [6] http://tahoe-lafs.org/source/tahoe/trunk/COPYING.TGPPL.html
      [7] http://tahoe-lafs.org/source/tahoe/trunk/docs/quickstart.html
      [8] http://tahoe-lafs.org/cgi-bin/mailman/listinfo/tahoe-dev
      [9] http://tahoe-lafs.org/trac/tahoe/roadmap
      [10] http://tahoe-lafs.org/trac/tahoe/browser/CREDITS?rev=4511
      [11] http://tahoe-lafs.org/trac/tahoe/wiki/Dev
      [12] http://tahoe-lafs.org/hacktahoelafs/
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