I've just uploaded this release to

  http://www.pogner.demon.co.uk/components/bc/

Changes:

  Added Bounded and Dynamic Bags.

  Added Unbounded Rings in standard, Guarded and Synchronized forms.

  ObjectAda problems with Semaphores.

  Eliminated a problem where a function call, used only for its side
  effect and not for its result, was deleted by high optimisation
  levels (-O3). This may be a GNAT bug.

  Passive iteration (in BC.Containers) didn't reset the passed-in
  Iterator.

  Notes from John P. Woodruff on use with Rational Apex.

  Added a word-counter demo, as suggested by John English in the Ada
  Standard Component Library Working Group.

  Further contributions.

-Simon