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We aim to establish "existing practice" and provide reference implementations so that Boost libraries are suitable for eventual standardization. Ten Boost libraries are already included in the C++ Standards Committee's Library Technical Report ( TR1) as a step toward becoming part of a future C++ Standard. More Boost libraries are proposed for the upcoming TR2.

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???, 2006 - Version 1.34.0

New Libraries

• Foreach Library: BOOST_FOREACH macro for easily iterating over the elements of a sequence, from Eric Niebler.
• Xpressive Library: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler.
• TR1 Library: An implementation of the C++ Technical Report on Standard Library Extensions, from John Maddock. This library does not itself implement the TR1 components, rather it's a thin wrapper that will include your standard library's TR1 implementation (if it has one), otherwise it will include the Boost Library equivalents, and import them into namespace std::tr1. Highlights include: Reference Wrappers, Smart Pointers, result_of, Function Object Binders, Polymorphic function wrappers, Type Traits, Random Number Generators and Distributions, Tuples, Fixed Size Array, Hash Function Objects, Regular Expressions, and Complex Number Additional Algorithms.

Updated Libraries

• MultiArray Library: Boost.MultiArray now by default provides range-checking for operator[]. Range checking can be disabled by defining the macro BOOST_DISABLE_ASSERTS before including multi_array.hpp.
• Function Library: Boost.Function now implements a small buffer optimization, which can drastically improve the performance when copying or construction Boost.Function objects storing small function objects. For instance, bind(&X:foo, &x, _1, _2) requires no heap allocation when placed into a Boost.Function object.
• Graph Library:
  • edmonds_maximum_cardinality_matching, from Aaron Windsor.
  • lengauer_tarjan_dominator_tree, from JongSoo Park.
  • compressed_sparse_row_graph, from Jeremiah Willcock and Douglas Gregor of Indiana University.
  • sorted_erdos_renyi_iterator, from Jeremiah Willcock of Indiana University.
  • biconnected_components now supports a visitor and named parameters, from Janusz Piwowarski.
  • adjacency_matrix now models the Bidirectional Graph concept.
  • dijkstra_shortest_paths now calls vis.initialize_vertex for each vertex during initialization.
  • See the complete revision history for more information.
• Multi-index Containers Library:
  • New random access indices.
  • Non key-based indices feature new rearrange facilities.
  • This version also includes a number of optimizations and usage improvements. For a complete list of changes, see the library release notes.
• Python Library: Boost.Python now automatically appends C++ signatures to docstrings. The new docstring_options.hpp header is available to control the content of docstrings.
• Parameter Library:
  • Every ArgumentPack is now a valid MPL Forward Sequence