Download SWI-Prolog development versions

Binaries
	5,908,101 bytes	SWI-Prolog/XPCE 5.9.9 for i586/Linux (RPM) Linux RPM package created on SuSE Linux 11.2. You may try on other Linux releases. If you are a one-time user, check whether your Linux distro provides SWI-Prolog. If you are a frequent user, consider to download and compile the source.
	8,223,332 bytes	SWI-Prolog/XPCE 5.9.9 for Windows NT/2000/XP/Vista Self-installing executable for MS-Windows. Installs plwin.exe and plcon.exe. Works on Windows NT/2000/XP/Vista.
	8,512,707 bytes	SWI-Prolog/XPCE 5.9.9 for Windows XP/Vista 64-bit edition Self-installing executable for Microsoft's 64-bit platforms (XP and Vista 64-bit editions). See the reference manual for deciding on whether to use the 32- or 64-bits version.
	12,486,373 bytes	SWI-Prolog/XPCE 5.9.9 for MacOSX 10.6 (Snow Leopard) on intel Installer with binaries created using Macports. Installs /opt/local/bin/swipl. Needs X11 (bundled with the MacOS X installer) and Developer Tools (Xcode) installed for running the development tools.
	10,555,268 bytes	SWI-Prolog/XPCE 5.9.9 for MacOSX 10.5 (Leopard) on intel Installer with binaries created using Macports. Installs /opt/local/bin/swipl. Needs xquartz (X11) and the Developer Tools (Xcode) installed for running the development tools
	10,293,442 bytes	SWI-Prolog/XPCE 5.9.1 for MacOSX 10.4 (Tiger) on ppc Installer with binaries created using Macports. Installs /opt/local/bin/swipl. Needs xquartz (X11) and the Developer Tools (Xcode) installed for running the development tools
Sources
	13,068,939 bytes	SWI-Prolog source for 5.9.9 Sources in .tar.gz format, including packages and generated documentation files. See build instructions.
Documentation
	2,384,349 bytes	SWI-Prolog 5.9.9 reference manual in PDF SWI-Prolog reference manual as PDF file. This does not include the package documentation.
Package binaries
	900,077 bytes	Package space (version 0.1.2) for Windows NT/2000/XP/Vista Binary installer for the spatial indexing package space
	1,305,703 bytes	Package space (version 0.1.2) for Windows XP/Vista 64-bit edition Binary installer for the spatial indexing package space
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About this release

The 5.9.x branch will improve memory management.

The development branches have their own GIT repository at the address below. See the general GIT instructions for details.

% git clone git://www.swi-prolog.org/home/pl/git/pl-devel.git

Windows

• With thanks to `Degski', building the Windows version has become a lot simpler. The above Windows binaries are created using his configuration framework with Microsoft VC9. Uptill now, the Win32 binary was compiled with VC6 and the Win64 version with VC8.

Space package

• The section Package binaries contains binary installers for the space-package, providing spatial indexing designed to be used with the RDF libraries, but they can also be used as general purpose library for multi-dimensional indexing and dealing with geo-data formats.

  Non-Windows users should download and build from the GIT sources.

5.9.x planned enhancements

• Replace sparse-address-space based stack allocation by stack-relocation (stack-shifting). This seriously reduces address-space requirements, which is of great importance to applications using many threads. (done)
• Remove max_threads limitation. (done)
• Reduce trail-stack usage. (partly)
• Provide generational garbage collection.