New in 2.4:

* Support for GCC 4 on more platforms.
* Added support for catching stack overflow on NetBSD.
* Improved support for catching stack overflow on Linux, Solaris:
  Works also when /proc is not mounted or lacks read permissions.

New in 2.3:

* Support for GCC 4 on some platforms contributed by Paolo Bonzini.
* Support for MacOS X i386 contributed by Bruno Haible.
* Improved support for Woe32 contributed by Doug Currie.

New in 2.2:

* Support for new versions of MacOS X contributed by Paolo Bonzini.
* Improved support for AIX 5, contributed by Bruno Haible.

New in 2.1:

* Support for MacOS X contributed by Paolo Bonzini.
* Support for Cygwin contributed by Paolo Bonzini.
* Support for Linux/ia64 and Linux/hppa contributed by Bruno Haible.
* Support for OpenBSD/i386 contributed by Bruno Haible.
* Support for NetBSD/alpha contributed by Paolo Bonzini.

New in 2.0:

* Modernized infrastructure.
* Added support for catching stack overflow on AIX 4, HP-UX, and BeOS.
* Dropped support for NeXTstep.
* The function sigsegv_leave_handler() no longer restores the signal mask.
  This must now be done by the calling handler (either through sigprocmask
  or through siglongjmp).

New in 1.2:

* Support for HP-UX contributed by Paolo Bonzini.

New in 1.1:

* Catching stack overflow now works on some Unix systems:
  - Linux 2.2.x with glibc-2.1,
  - Sun Solaris,
  - DEC OSF/1 4.0,
  - SGI Irix.