RELEASE NOTES
=============

This is omniORB 4.2.0

See README.unix.txt or README.win32.txt for building instructions.
See the documentation in the doc directory for more information.


Changes since omniORB 4.1.x
---------------------------

omniORB 4.2 has a number of new features compared to omniORB 4.1.x,
both large and small. Here are the highlights:

 - Full Asynchronous Method Invocation (AMI) support.

 - Support for ZIOP, which compresses large messages.

 - Call timeouts are indicated with the CORBA::TIMEOUT exception,
   rather than CORBA::TRANSIENT (unless suppressed with the
   throwTransientOnTimeout configuration parameter).

 - Servers can be limited to a range of ports to listen on.

 - Performance improvements to Any, sequence buffer management,
   unions, and other areas.

 - Ancient Python versions are no longer supported. omniidl and
   omniORBpy now only work with Python 2.5 or later.

 - omniidl works with Python 3.x as well as 2.x.


Known issues / limitations
--------------------------

This release has the following known issues and omissions:

 - valuetypes supporting local interfaces generate invalid C++. This
   is an issue with the standard C++ mapping.
