User-Visible Changes in Tahoe-LAFS
==================================
-Release 1.9.0 (2011-??-??)
+Release 1.9.1 (2012-01-12)
--------------------------
-Beta 1 preview
+Security-related Bugfix
+'''''''''''''''''''''''
+
+- Fix flaw that would allow servers to cause undetected corruption when
+ retrieving the contents of mutable files (both SDMF and MDMF). (`#1654`_)
+.. _`#1654`: https://tahoe-lafs.org/trac/tahoe-lafs/ticket/1654
+
+
+Release 1.9.0 (2011-10-30)
+--------------------------
New Features
''''''''''''
format for mutable files), both to ensure compatibility with previous
versions, and because the algorithm does not yet meet memory-usage goals.
Enable it with ``--format=MDMF`` in the CLI (``tahoe put`` and ``tahoe
- mkdir``), or the "format" radioboxes in the web interface. (`#393`_,
- `#1507`_)
+ mkdir``), or the "format" radioboxes in the web interface. See
+ `<docs/specifications/mutable.rst>`_ for more details (`#393`_, `#1507`_)
- A "blacklist" feature allows blocking access to specific files through
a particular gateway. See the "Access Blacklist" section of
`<docs/configuration.rst>`_ for more details. (`#1425`_)