The Free On-line Dictionary of Computing (30 December 2018):

Ada 95

    A revision and extension of Ada (Ada 83) begun in
   1988 and completed on 1994-12-01 by a team lead by Tucker Taft
   of Intermetrics.  Chris Anderson was the Project Manager.
   The printed standard was expected to be available around
   1995-02-15.

   Additions include object-orientation (tagged types,
   abstract types and class-wide types), hierarchical
   libraries and synchronisation with shared data (protected
   types) similar to Orca.  It lacks multiple inheritance but
   supports the construction of multiple inheritance type
   hierarchies through the use of generics and type
   composition.

   GNAT aims to be a free implementation of Ada 95.

   You can get the standard from the Ada Joint Program Office
   (http://wuarchive.wustl.edu/languages/ada/ajpo/index.shtml).

   ["Introducing Ada 9X", J.G.P. Barnes, Feb 1993].

   (1999-12-02)