User visible changes in Tahoe-LAFS. -*- outline; coding: utf-8 -*-
-* Release 1.8.0 (candidate c2)
+* Release 1.8.0 (candidate c4)
** New Features
- A completely new downloader which improves performance and
- robustness of immutable-file downloads. It automatically fails over
- to alternate servers if servers fail in mid-download. It allows
- seeking to arbitrary locations in the file, unlike the old
- downloader which only allowed reading the entire file sequentially
- from the beginning. It minimizes unnecessary round trips and
+ robustness of immutable-file downloads. It uses the fastest K
+ servers to download the data in K-way parallel. It automatically
+ fails over to alternate servers if servers fail in mid-download. It
+ allows seeking to arbitrary locations in the file (the previous
+ downloader which would only read the entire file sequentially from
+ beginning to end). It minimizes unnecessary round trips and
unnecessary bytes transferred to improve performance. It sends
- requests to fewer servers (the old one would send a request to
- every server for every download) (#287, #288, #448, #798, #800,
- #990)
+ requests to fewer servers to reduce the load on servers (the
+ previous one would send a small request to every server for every
+ download) (#287, #288, #448, #798, #800, #990, #1170, #1191)
- Non-ASCII command-line arguments and non-ASCII outputs now work on
Windows. In addition, the command-line tool now works on 64-bit
** Bugfixes and Improvements
- Document and clean up the command-line options for specifying the
- node's base directory. (#188, #706, #715, #772)
+ node's base directory. (#188, #706, #715, #772, #1108)
- The default node directory for Windows is ".tahoe" in the user's
home directory, the same as on other platforms. (#890)
- Fix a case in which full cap URIs could be logged. (#685, #1155)
- Fix bug in WUI in Python 2.5 when the system clock is set back to
1969. Now you can use Tahoe-LAFS with Python 2.5 and set your
system clock to 1969 and still use the WUI. (#1055)
- - Many improvements in code organization, tests, logging, and
- packaging. (#1074, #1108, #1127, #1129, #1131)
+ - Many improvements in code organization, tests, logging,
+ documentation, and packaging. (#983, #1074, #1108, #1127, #1129,
+ #1131, #1166, #1175)
* Release 1.7.1 (2010-07-18)
-ANNOUNCING Tahoe, the Least-Authority File System, v1.8.0c3
+ANNOUNCING Tahoe, the Least-Authority File System, v1.8.0c4
The Tahoe-LAFS team is pleased to announce the immediate
-availability of version 1.8.0c3 of Tahoe-LAFS, an extremely
+availability of version 1.8.0c4 of Tahoe-LAFS, an extremely
reliable distributed storage system.
Tahoe-LAFS is the first distributed storage system which
The current stable release of Tahoe-LAFS is v1.7.1, which was
released July 18, 2010 [1].
-v1.8.0c3 is leading up to the v1.8.0 release, featuring
-including fast and fault-tolerant downloads and better
-Windows support. See the NEWS file [2] for details. v1.8.0c3
-fixes performance regressions for some server
-layouts. v.1.80c2 corrected some minor regressions in
-download status pages. v1.8.0c1 corrected regressions in
-compatibility with other versions, and in downloads using the
-Range header, that were introduced in v1.8.0β. If no further
-regressions or critical bugs are discovered, we will release
-v1.8.0 final on approximately September 11, 2010.
+v1.8.0 offers greatly improved performance and fault-tolerance
+of downloads and improved Windows support. See the NEWS file
+[2] for details.
+
+v1.8.0c4 is the release candidate for v1.8.0. v1.8.0c4 fixed a
+unit test failure and added some documentation and build
+system improvements. v1.8.0c3 fixed performance regressions
+for some server layouts. v.1.80c2 corrected some minor
+regressions in download status pages. v1.8.0c1 corrected
+regressions in compatibility with other versions, and in
+downloads using the Range header, that were introduced in
+v1.8.0β. If no further regressions or critical bugs are
+discovered, we will release v1.8.0 final on September 18,
+2010.
WHAT IS IT GOOD FOR?
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
+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 share specific files and directories
with other people.
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.
+on-line backup or cloud storage.
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].)
+use. (For all important issues that we are currently aware of
+please see the known_issues.txt file [4].)
COMPATIBILITY
-This release is fully compatible with the version 1 series of
+This release is 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
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
+funding of Tahoe-LAFS R&D in early 2009, they 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.
+of appreciation, and bug reports.
+
+Google, Inc. sponsored Tahoe-LAFS development as part of the
+Google Summer of Code 2010. They awarded four sponsorships to
+students from around the world to hack on Tahoe-LAFS that
+summer.
-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
-support.
+Thank you to Allmydata and Google for their generous and
+public-spirited support.
HACK TAHOE-LAFS!
David-Sarah Hopwood and Zooko Wilcox-O'Hearn
on behalf of the Tahoe-LAFS team
-September 2, 2010
+September 11, 2010
Rainhill, Merseyside, UK and Boulder, Colorado, USA