*** Major changes in libio version 0.66 (released with libg++ 2.6.1):

* Some documentation and an example in iostream.texi on how to derive
 your own class from streambuf.

* New functions added to stdio:  getline, detdelim, snprintf, vsnprintf.
  This is for compatibility with the GNU C library.

*** Major changes in libio version 0.65 (released with libg++ 2.6):

* _IO_getline and streambuf::sgetline no longer write a '\0' at the end.

* A number of improvements to get closer to the ANSI/ISO C++ working
paper, such as:
- Added (preliminary support for) new ANSI streambuf::uflow virtual.
- Added istdiostream and ostdiostream classes.
- Added ostream::operator<<(bool) and istream::operator>>(bool&).

* More robust (and faster) initialization and cleanup of standard streambufs.

* Many small bug fixes, portability improvements, and random enhancements.

*** Major changes in libio version 0.63 (released with libg++ 2.5.3):

* There is a g++ bug that causes inconsistent name mangling for the
assembler name of the virtual function table for the istream class.
A work-around has been put into streambuf.h, which will make g++
always do the right thing.  Note that this may require you to
recompile programs that were incorrectly compiled by g++.

* Functions that do printf-style formatting to the unbuffered
streams have been optimized to write to a temporary buffer.

