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docs: update relnotes.txt for Tahoe-LAFS v1.6

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Zooko O'Whielacronx 2010-01-28 09:12:57 -08:00
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ANNOUNCING Tahoe, the Lofty-Atmospheric Filesystem, v1.6
ANNOUNCING Tahoe, the Least-Authority File System, v1.6
The Tahoe-LAFS team is pleased to announce the immediate
availability of version 1.6 of Tahoe, the Lofty Atmospheric
File System.
availability of version 1.6 of Tahoe-LAFS, an extremely
reliable distributed key-value store and cloud storage system.
Tahoe-LAFS is the first cloud storage technology which offers
security and privacy in the sense that the cloud storage
service provider itself can't read or alter your data. Here is
the one-page explanation of its unique security and
fault-tolerance properties:
Tahoe-LAFS is the first cloud storage system which offers
"provider-independent security" -- meaning the privacy and
security of your data is not dependent on the behavior of your
cloud service provider. Here is the one-page explanation of its
unique security and fault-tolerance properties:
http://allmydata.org/source/tahoe/trunk/docs/about.html
This release is the successor to v1.4.1, which was released
April 13, 2009 [1]. This is a major new release, improving the
user interface and performance and fixing a few bugs, and
adding ports to OpenBSD, NetBSD, ArchLinux, NixOS, and embedded
systems built on ARM CPUs. See the NEWS file [2] for more
information.
Tahoe-LAFS v1.6.0 is the successor to v1.5.0, which was
released August 1, 2009 [1]. In this major new release, we've
added deep-immutable directories (i.e. permanent snapshots),
greatly increased performance for some common operations, and
improved the help text, documentation, command-line options,
and web user interface. The FUSE plugin has been fixed. We also
fixed a few bugs. See the NEWS file [2] for details.
In addition to the functionality of Tahoe-LAFS itself, a crop
of related projects have sprung up to extend it and to
integrate it into operating systems and applications. These
include frontends for Windows, Macintosh, JavaScript, and
iPhone, and plugins for duplicity, bzr, Hadoop, and TiddlyWiki,
and more. See the Related Projects page on the wiki [3].
COMPATIBILITY
Version 1.6 is fully compatible with the version 1 series of
Tahoe-LAFS. Files written by v1.6 clients can be read by
clients of all versions back to v1.0. v1.6 clients can read
files produced by clients of all versions since v1.0. v1.6
servers can serve clients of all versions back to v1.0 and v1.6
clients can use servers of all versions back to v1.0.
In addition, version 1.6 improves forward-compatibility with
planned future cap formats, allowing updates to a directory
containing both current and future caps, without loss of
information.
This is the seventh major release in the version 1 series. The
version 1 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.
The version 1 series of Tahoe-LAFS is the basis of the consumer
backup product from Allmydata, Inc. -- http://allmydata.com .
In addition to the core storage system itself, a crop of
related projects have sprung up to extend it and to integrate
it into operating systems and applications. These include
frontends for Windows, Macintosh, JavaScript, and iPhone, and
plugins for Hadoop, bzr, duplicity, TiddlyWiki, and more. See
the Related Projects page on the wiki [3].
WHAT IS IT GOOD FOR?
With Tahoe-LAFS, you can distribute your filesystem across a
set of servers, such that if some of them fail or even turn out
to be malicious, the entire filesystem continues to be
available. You can share your files with other users, using a
simple and flexible access control scheme.
With Tahoe-LAFS, you distribute your filesystem across multiple
servers, and even if some of the servers fail or are taken over
by an attacker, the entire filesystem continues to work
correctly, and continues to preserve your privacy and
security. You can easily and securely share chosen files and
directories with others.
We believe that the combination of erasure coding, strong
encryption, Free/Open Source Software and careful engineering
make Tahoe-LAFS safer than RAID, removable drive, tape, on-line
backup or other Cloud storage systems.
This software comes with extensive tests, and there are no
known security flaws which would compromise confidentiality or
data integrity in typical use. (For all currently known issues
please see the known_issues.txt file [4].)
This software is developed under thorough unit tests, and there
are no known bugs or security flaws which would compromise
confidentiality or data integrity under normal use. (For all
currently known issues please see the known_issues.txt file
[4].)
COMPATIBILITY
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 seventh release in the version 1 series. The
version 1 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.
In addition, version 1.6 improves forward-compatibility with
planned future cap formats, allowing updates to a directory
containing both current and future caps, without loss of
information.
LICENCE
You may use this package under the GNU General Public License,
version 2 or, at your option, any later version. See the file
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
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.)
@ -93,16 +95,16 @@ licence, at your option.)
INSTALLATION
Tahoe-LAFS works on Linux, Mac OS X, Windows, Cygwin, Solaris,
*BSD, and probably most other systems. Start with
*BSD, and probably most other systems. Start with
"docs/install.html" [7].
HACKING AND COMMUNITY
Please join us on the mailing list [8]. Patches are gratefully
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
who've contributed to the project. The Dev page [11] contains
resources for hackers.
@ -110,41 +112,30 @@ SPONSORSHIP
Tahoe-LAFS was originally developed thanks to the sponsorship
of Allmydata, Inc. [12], a provider of commercial backup
services. Allmydata, Inc. created the Tahoe-LAFS project and
services. Allmydata, Inc. created the Tahoe-LAFS project and
contributed hardware, software, ideas, bug reports,
suggestions, demands, and money (employing several Tahoe-LAFS
hackers and instructing them to spend part of their work time
on this Free Software project). Also they awarded customized
on this Free Software project). Also they awarded customized
t-shirts to hackers who found security flaws in Tahoe-LAFS (see
http://hacktahoe.org ). After discontinuing funding of
Tahoe-LAFS R&D in early 2009, Allmydata, Inc. has continued to
provide servers, co-lo space and bandwidth to the open source
project. Thank you to Allmydata, Inc. for their generous and
public-spirited support.
provide servers, co-lo space, bandwidth, and thank-you gifts to
the open source project. Thank you to Allmydata, Inc. for their
generous and public-spirited support.
This is the second release of Tahoe-LAFS which was created
solely as a labor of love by volunteers; developer time is no
longer funded by allmydata.com (see [13] for details).
This is the third release of Tahoe-LAFS to be created solely as
a labor of love by volunteers. Thank you very much to the
dedicated team of "hackers in the public interest" who make
Tahoe-LAFS possible.
Zooko Wilcox-O'Hearn
on behalf of the Tahoe-LAFS team
Special acknowledgment goes to Brian Warner, whose superb
engineering skills and dedication are primarily responsible for
the Tahoe implementation, and significantly responsible for the
Tahoe design as well, not to mention most of the docs and
tests. Tahoe-LAFS wouldn't exist without him.
August 1, 2009
January 31 2010
Boulder, Colorado, USA
P.S. Just kidding about that acronym. "LAFS" actually stands
for "Lightweight Authorization File System". Or possibly for
"Least-Authority File System". There is no truth to the rumour
that it actually stands for "Long-lived Axe-tolerant File
System".
[1] http://allmydata.org/trac/tahoe/browser/relnotes.txt?rev=3853
[1] http://allmydata.org/trac/tahoe/browser/relnotes.txt?rev=4042
[2] http://allmydata.org/trac/tahoe/browser/NEWS?rev=4033
[3] http://allmydata.org/trac/tahoe/wiki/RelatedProjects
[4] http://allmydata.org/trac/tahoe/browser/docs/known_issues.txt
@ -156,4 +147,3 @@ System".
[10] http://allmydata.org/trac/tahoe/browser/CREDITS?rev=4035
[11] http://allmydata.org/trac/tahoe/wiki/Dev
[12] http://allmydata.com
[13] http://allmydata.org/pipermail/tahoe-dev/2009-March/001461.html