2.0.3 (September 1st, 2009)
  - Fixed an URI normalization bug misnormalizing URIs with a single-character
  trailing component
  - build improvements
2.0.2 (April 11th, 2009)
  - Handling of unknown encodings during discovery
  - Discovery robustness improvements
  - Workaround for OPs (e.g. livejournal.com) breaking specs
  - Build fixes and improvements
2.0.1 (November 22nd, 2008)
  - Compile-time fixes and improvements
  - Portability improvements for FreeBSD
  - Really suppress debugging message from htmltidy when --disable-debug is in
  effect
  - minor bugfixes
  - thread-safety improvements
2.0 (June 26th, 2008)
  - OpenID 2.0 support
  - Major rewrite of the whole thing
  - Support for XRDS (YADIS and XRI/inames) discovery
  - Sheerly improved html-based discovery (only code using new, 2.0-enabled
  classes benefits from it)
  - Deprecation of the old api
  - Added sample RP and OP implementations
  - Require expat xml stream parser library
  - Require htmltidy library
  - Require tr1/memory (shared_ptr) support - either modern gcc or boost
  library
0.3.2 (November 22nd, 2007)
  - code cleanup for stricter compiler
0.3.1 (November 20th, 2007)
  - more robustness improvements in links discovery
  - removed dependency on pcre c++ bindings, because there are few of them and
  not everyone likes all of them
  - minor build improvements
0.3 (August 9th, 2007)
  - fixed canonicalization procedure to be specs-compliant. Note, that the old
  consumer_t::canonicalize is now called consumer_t::normalize and the
  canonicalize memeber is now virtual to allow caching layer, not static
  - robustness improvement in handling associations expiry
  - minor documentation updates
0.2.1 (June 24th, 2007)
  - open id server invalid signature bugfix
0.2 (June 19th, 2007)
  - A few robustness improvements and optimizations
  - More liberal key/values messages parsing
  - Changed unusable --with-pcre++ configure option to --with-pcrepp
0.1.1 (January 16th, 2007)
  - Fixed a bug in curl errors handling
  - added --disable-ssl-verify-host and --disable-ssl-verify-peer options to
  configure to alter default implementation of consumer's retrieve_links
  behaviour
  - Build fix that eliminates the need to pass --disable-konforka in the
  absence of it.
0.1 (January 12th, 2007)
  - OpenID simple registration extension implementation
  - OpenID extensions framework
  - Canonicalization bugfix
  - Slightly improved interoperability with buggy implementations
0.0 (July 25th, 2005)
  - Initial release