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+Version 1.9.18, 2011-06-03
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+* Fourth release candidate for 1.10.0
+
+* The GOST 34.10 verification operation was not ensuring that s and r
+  were both greater than zero. This could potentially have meant it
+  would have accepted an invalid all-zero signature as valid for any
+  message. Due to how ECC points are internally represented it instead
+  resulted in an exception being thrown.
+
+* A simple multiexponentation algorithm is now used in ECDSA and
+  GOST-34.10 signature verification, leading to 20 to 25% improvements
+  in ECDSA and 25% to 40% improvements in GOST-34.10 verification
+  performance.
+
+* The internal representation of elliptic curve points has been
+  modified to use Montgomery representation exclusively, resulting in
+  reduced memory usage and a 10 to 20% performance improvement for
+  ECDSA and ECDH.
+
+* In OAEP decoding, scan for the delimiter bytes using a loop that is
+  written without conditionals so as to help avoid timing analysis.
+  Unfortunately GCC at least is 'smart' enough to compile it to
+  jumps anyway.
+
+* The SSE2 implementation of IDEA did not work correctly when compiled
+  by Clang, because the trick it used to emulate a 16 bit unsigned
+  compare in SSE (which doesn't contain one natively) relied on signed
+  overflow working in the 'usual' way. A different method that doesn't
+  rely on signed overflow is now used.
+
+* Add support for compiling SSL using Visual C++ 2010's TR1
+  implementation.
+
+* Fix a bug under Visual C++ 2010 which would cause ``hex_encode`` to
+  crash if given a zero-sized input to encode.
+
+* A new build option ``--via-amalgamation`` will first generate the
+  single-file amalgamation, then build the library from that single
+  file. This option requires a lot of memory and does not parallelize,
+  but the resulting library is smaller and may be faster.
+
+* On Unix, the library and header paths have been changed to allow
+  parallel installation of different versions of the library. Headers
+  are installed into ``<prefix>/include/botan-1.9/botan``, libraries
+  are named ``libbotan-1.9``, and ``botan-config`` is now namespaced
+  (so in this release ``botan-config-1.9``). All of these embedded
+  versions will be 1.10 in the upcoming stable release.
+
+* The soname system has been modified. In this release the library
+  soname is ``libbotan-1.9.so.0``, with the full library being named
+  ``libbotan-1.9.so.0.18``. The ``0`` is the ABI version, and will be
+  incremented whenever a breaking ABI change is made.
+
+* TR1 support is not longer automatically assumed under older versions
+  of GCC
+
+* Functions for base64 decoding that work standalone (without needing
+  to use a pipe) have been added to ``base64.h``
+
+* The function ``BigInt::to_u32bit`` was inadvertently removed in 1.9.11
+  and has been added back.
+
+* The function ``BigInt::get_substring`` did not work correctly with a
+  *length* argument of 32.
+
+* The implementation of ``FD_ZERO`` on Solaris uses ``memset`` and
+  assumes the caller included ``string.h`` on its behalf. Do so to
+  fix compilation in the ``dev_random`` and ``unix_procs`` entropy
+  sources. Patch from Jeremy C. Reed.
+
+* Add two different configuration targets for Atom, since some are
+  32-bit and some are 64-bit. The 'atom' target now refers to the
+  64-bit implementations, use 'atom32' to target the 32-bit
+  processors.
+
+* The (incomplete) support for CMS and card verifiable certificates
+  are disabled by default; add ``--enable-modules=cms`` or
+  ``--enable-modules=cvc`` during configuration to turn them back on.
+