Log message:
Changes 1.51.0:
New Libraries
* Context: Context switching library, from Oliver Kowalke.
Updated Libraries
* Algorithm:
- Fixed is_sorted_until ; now matches the c++11 standard behavior on ranges with
  duplicate values.
- Added range support for the rest of the search algorithms.
- unhex now uses Boost.Exception to signal bad input.
* Asio:
- Fixed an incompatibility between ip::tcp::iostream and C++11.
- Decorated GCC attribute names with underscores to prevent interaction with
  user-defined macros.
- Added missing #include <cctype>, needed for some versions of MinGW.
- Changed to use gcc's atomic builtins on ARM CPUs, when available.
- Changed strand destruction to be a no-op, to allow strand objects to be
  destroyed after their associated io_service has been destroyed.
- Added support for some newer versions of glibc which provide the
  epoll_create1() function but always fail with ENOSYS.
- Changed the SSL implementation to throw an exception if SSL engine
  initialisation fails.
- Fixed another regression in buffered_write_stream.
- Implemented various minor performance improvements, primarily targeted at
  Linux x86 and x86-64 platforms.
* Config:
- Deprecated a whole bunch of macros that were c++11 specific, but not named to
  show that they were c++11 specific. Made new macros with better names, and
  paired the old macros with the new ones. Updated the documentation to list
  the deprecated macros.
[more..]

Log message:
Changes 1.50:0
New Libraries
* Algorithm: A collection of useful generic algorithms, from Marshall Clow.
  This includes several different searching algorithms, as well as most of the
  new algorithms from the C++11 standard library
* Functional/OverloadedFunction: Overload different functions into a single
  function object, from Lorenzo Caminiti.
* LocalFunction: Program functions locally, within other functions, directly
  within the scope where they are needed, from Lorenzo Caminiti.
* Utility/IdentityType: Wrap types within round parenthesis so they can always
  be passed as macro parameters, from Lorenzo Caminiti.
More http://www.boost.org/users/history/version_1_50_0.html

Log message:
Update boost to 1.49.0

Changes:
New Libraries
* Heap: Priority queue data structures, from Tim Blechmann.

Details: http://www.boost.org/users/history/version_1_49_0.html

Log message:
Changes 1.48.0:
New Libraries
* Container: Standard library containers and extensions
* Locale: Provide localization and Unicode handling tools for C++
  Beilis.
* Move: Portable move semantics for C++03 and C++11 compilers

Details: http://www.boost.org/users/history/version_1_48_0.html

Log message:
Changes 1.47.0:
New Libraries
* Chrono: Useful time utilities
* Geometry: Geometry Library
* Phoenix: Define small unnamed function objects at the actual call site, and
  more
* Ratio: Compile time rational arithmetic
More: http://www.boost.org/users/history/version_1_47_0.html

Log message:
Changes 1.46.0:
New Libraries
* Icl: Interval Container Library, interval sets and maps and aggregation of
  associated values, from Joachim Faulhaber.
Updated Libraries
* Array:
  - Added support for cbegin/cend
  - Fixed a problem with the Sun compiler
* Asio:
  - Fixed a problem on older Linux kernels (where epoll is used without timerfd
    support) that prevents timely delivery of deadline_timer handlers, after
    the program has been running for some time
* Bind:
  - make_adaptable now documented
* Concept Check:
  - fixed warnings with self-assignment
* Filesystem:
  - Version 3 of the library is now the default.
  - IBM vacpp: Workaround for compiler bug affecting iterator_facade
  - Verify, clarify, document that <boost/config/user.hpp> can be used to
    specify BOOST_FILESYSTEM_VERSIO
  - Replaced C-style assert with BOOST_ASSERT.
  - Undeprecated unique_path(). Instead, add a note mentioning the workaround
   for lack of thread safety and possible change to cwd. unique_path() is just
   too convenient to deprecate!
  - Cleared several GCC warnings.
  - Changed V2 code to use BOOST_THROW_EXCEPTION.
  - Windows: Fix status() to report non-symlink reparse point correctly.
  - Add symlink_option to recursive_directory_iterator, allowing control over
    recursion into directory symlinks. Note that the default is changed to not
    recurse into directory symlinks.
  - Reference documentation cleanup, including fixing missing and broken links,
    and adding missing functions.
  - Miscellaneous implementation code cleanup.
* Fusion:
  - vector copy constructor now copies sequence members in the same order on \ 
different platforms
* Graph:
  - Fixed Graphviz output to work on Visual C++ 7.1.
  - Replaced assert with BOOST_ASSERT.
  - Changed to Boost.Filesystem v3.
More...

Log message:
Changes 1.45.0:
* Fixed a problem on kqueue-based platforms where a deadline_timer
  may never fire if the io_service is running in a background thread
* Fixed a const-correctness issue that prevented valid uses of
  has_service<> from compiling
* Fixed MinGW cross-compilation
* Removed dependency on deprecated Boost.System functions
* Ensured close()/closesocket() failures are correctly propagated
* Added a check for errors returned by
  InitializeCriticalSectionAndSpinCount
* Added support for hardware flow control on QNX
* Always use pselect() on HP-UX, if it is available.
* Ensured handler arguments are passed as lvalues
* Fixed Windows build when thread support is disabled
* Fixed a Windows-specific problem where deadline_timer objects with
  expiry times set more than 5 minutes in the future may never expire
* Fixed the resolver backend on BSD platforms so that an empty service
  name resolves to port number 0, as per the documentation
* Fixed read operations so that they do not accept buffer sequences of
  type const_buffers_1
* Redefined Protocol and id to avoid clashing with Objective-C++ keywords
* Fixed a vector reallocation performance issue that can occur when
  there are many active deadline_timer objects
* Fixed the kqueue backend so that it compiles on NetBSD
* Fixed the socket io_control() implementation on 64-bit Mac OS X and
  BSD platforms
* Fixed a Windows-specific problem where failures from accept() are
  incorrectly treated as successes
* Deprecated the separate compilation header <boost/asio/impl/src.cpp>
  in favour of <boost/asio/impl/src.hpp>

Log message:
Added support for Clang

Log message:
Changes 1.44.0:
New Libraries
* Meta State Machine: High-performance expressive UML2 finite state machines,
  from Christophe Henry
* Polygon: Booleans/clipping, resizing/offsetting and more for planar polygons
  with integral coordinates, from Lucanus Simonson.
Updated Libraries
* Accumulators
* Asio
* Config
* Filesystem
* Foreach
* Hash
* Iostreams
* Math
* MPL
* Multi-index Containers
* Proto
* Regex
* Thread
* TR1
* Type Traits
* uBLAS
* Utility
* Uuid
* Xpressive

Log message:
Changes 1.43.0:
New Libraries:
* Functional/factory: Function objects for dynamic and by-value construction.
* Functional/forward: Function object adapters to address the forwarding
 problem.
Major Updates:
* Range: Boost.Range has undergone extensive updates that it include all of the
  features from the recently reviewed Boost.RangeEx.
* Range-based version of the full STL iterator based algorithms.
* Range adaptors which can be combined with range-based algorithms for
  unpresedented expressiveness and efficiency.
* New functions: irange, istream_range, join, combine.
Updated Libraries
Build System:
* When cross-compiling to GNU targets, static libraries are properly created.
  Previously, using such libraries resulted in Archive has no index error.
* The naming of DLL and import libraries with gcc compiler on Windows, both
  mingw and cygwin, now matches default conventions of those environments.
  Previously, the naming scheme was the same as for other Windows compilers.
Updated Tools:
* Quickbook: Unicode escape characters.
* Support the UTF-8 byte order mark.
* Disallow [ in simple markup. Fixes some errors with mismatched punctuation.
* Add a command line flag (-D) to define macros at the command line.
* Improved post-processor output.
* Check that [section] and [endsect] tags are balanced in templates.