The first post-review version of the program_options library is now available. I believe that all important interface changes are finished and would like to ask for feedback on the current version, before I go on. Some of the interesting changes include: - better way to describe option values - support for positional options - support for environment variables The library and documentation can be obtained at http://zigzag.cs.msu.su:7813/program_options The documentation can also be browsed online at http://zigzag.cs.msu.su:7813/program_options/html And the source can also be browsed online at http://zigzag.cs.msu.su:7813/repos/trunk/program_options Since the interface has changes quite a bit, the brief list of changes is included in docs, to help with migration. See http://zigzag.cs.msu.su:7813/program_options/html/ch01s04.html All comments are very appreciated. - Volodya