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-*- Mode: Indented-text; -*-

Recent changes to the Scheme Shell.

??/??/?? (version 0.4.5 presumably)
	 lock-region record now stores the *proc object* of the locking
           process, not the integer pid. A bug in unlock-region was fixed,
	   and the documentation was fixed up.
	 Did we say we had signal handlers installed in the last release?
	   Now we do. Really. Installed & documented.
	 Hopefully, bdc will change this line to say the static heap
	   linker is documented.
	 Name-consistency change (non-backwards compatible):
	   open/nonblocking renamed to open/non-blocking,
	       which is the way it was always described in the manual.
	 -s<num> is now -sfd <num> -- more consistent with general switch
	   design.

11/03/96  (version 0.4.4)
	  minor fixes for SunOS, Solaris, AIX, NeXTStep, 686 systems 
	  minor static heap linker fixes

10/31/96  (version 0.4.3)
	  Signal handlers
	  Static heap linker
	  Regular expression compilation
	  AWK pre-compiles regexp patterns outside of main loop
	  Solaris 2 on i386 support
	  AIX 4 support
	  HP-UX now uses dld for faster loading
	  a few small networking bug fixs
	  Bug fixes to I/O system.
	  New meta-arg second-line syntax
	  New -s<fdes> command line switch
	  Last few bits of Posix: isatty(), ttyname(), ctermid(), fcntl()
	  More efficient CLOEXEC handling for unrevealed file descriptors.
	  Starting up programs with the "-e <entry-point>" command-line
            switch and with the (DUMP-SCSH-PROGRAM <file-name> <entry-point>)
            are now equivalent in that both pass a list of command-line 
            arguments that includes the program name. The two start-up methods
            were not the same in the previous release. N.B.: This is not
	    backwards-compatible with older releases' DUMP-SCSH-PROGRAM.

10/31/95  (version 0.4.0)
	  New minor versioning introduced
	  configure upgraded to autoconf-2.4 and overhauled in general
	  static heap system improved from Scheme 48 version
	  POSIX job control?
	  POSIX terminal control with BSD and SVR4 extensions
	  pseudo terminal (pty) interface
	  select interface

12/25/94  (version 0.3)
          New network package.
          New awk and field reader package.
          Harris NightHawk support has been added courtesy Brent Benson.
          IBM AIX support has been added courtesy Michael Sperber.
          Ultrix support has been added.
          IRIX support has been added.
          Some bugs have been fixed in the manual and elsewhere.
	  Machine dependent code has been updated.
          user-info and group-info routines have be unified.
          file-info record used now now for naming consistency.

11/15/94  (version 0.2)
          New time package.
          Makefile bug has been fixed; makes should be totally painless.
          There is now a friendly, ASCII-format cheat sheet with all the 
            system calls listed in doc/cheat.txt.
          Some bugs in the manual have been fixed.
          Solaris support has been added courtesy Travis V. Broughton.

10/31/94  (version 0.1)
	  First release.