Watcom C/C++ Compiler - Release History

Release History

The Open Watcom Wiki has a comprehensive history.

Date Product Notes
1984 Waterloo C for S/370
1985 Work on current code generator codebase started
1988 Watcom C 6.0
  • DOS host and target only
  • Included a debugger and full set of runtime libraries
  • Generated better code than other compilers at the time
1989 Watcom C 7.0
1989 Watcom C 7.0/386
  • First 32-bit version, DOS host and target only
  • Supported Phar Lap DOS extender
  • Did not come with a linker or debugger
1990 Watcom C 8.0
1990 Watcom C 8.0/386
  • Added linker, librarian, debugger, and profiler
  • Added graphics library
1991 Watcom C 8.5
1991 Watcom C 8.5/386
  • Shipped with DOS/4GW
  • Windows 3.0 supported (Win386 extender)
  • Unicode support
  • OS/2 hosted executables added
1992 Watcom C 9.0
1992 Watcom C 9.0/386
  • OS/2 2.0 host and target support
  • 486 optimizations
  • Based pointer support
Watcom C 9.01/386
  • Windows 3.1 support
1993 Watcom C/C++ 9.5
1993 Watcom C/C++ 9.5/386
  • C++ compiler added
  • Pentium optimizations
  • Windows NT host and target support
1994 Watcom C/C++ 10.0
  • MFC included
  • Precompiled header support
  • 16-bit and 32-bit tools merged into single package
  • Redesigned debugger
  • C++ class browser added
  • Windows resource editors added
  • Graphical IDE for Windows and OS/2
1995 Watcom C/C++ 10.5
  • Native C++ exception handling on OS/2 and Win32
  • Windows 95 and NT 3.5 support
  • TCP/IP remote debugging
1996 Watcom C/C++ 10.6
  • Structured exception handling in C
  • Improved compatibility with Microsoft compilers
1997 Watcom C/C++ 11.0
  • Namespace, RTTI, and new style cast support in C++ compiler
  • 64-bit integer support
  • Multi-byte character support in libraries
  • Incremental linking support
  • COFF and ELF object file support in linker and librarian
  • Microsoft clone tools added
  • DLL based tools for better IDE integration
1998 Watcom C/C++ 11.0B
1999 Sybase issues end-of-life notice for Watcom C/C++ 11.0
2000 Sybase announces open sourcing of Watcom tools
2001-09-27 Watcom C/C++ 11.0c Beta
2002-12-21 Watcom C/C++ 11.0c
2003-01-28 Open Watcom 1.0
2003-08-12 Open Watcom 1.1
2004-01-07 Open Watcom 1.2
2004-08-03 Open Watcom 1.3
2005-12-14 Open Watcom 1.4
2006-04-26 Open Watcom 1.5
2006-12-15 Open Watcom 1.6
2007-08-18 Open Watcom 1.7
2007-10-23 Open Watcom 1.7a
2009-02-21 Open Watcom 1.8
2010-06-02 Open Watcom 1.9

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