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Download SWI-Prolog development versions

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Binaries
Windows version (64-bits)12,236,187 bytesSWI-Prolog 8.1.3-1 for Microsoft Windows (64 bit)

Self-installing executable for Microsoft's 7/8/10 64-bit editions. See the reference manual for deciding on whether to use the 32- or 64-bits version.

SHA256:4e25d0ec8a2255e7e1a2f7f8225cdc6d479952b9a75322011550a624e0342a1e
Windows version (32-bits)11,939,823 bytesSWI-Prolog 8.1.3-1 for Microsoft Windows (32 bit)

Self-installing executable for MS-Windows. Installs swipl-win.exe and swipl.exe. Works on Windows 7/8/10.

SHA256:9915515c372bd226b699f2942d2aa33dd12bce972320924c3b5917b69cb863b6
Snow Leopard and later34,254,969 bytesSWI-Prolog 8.1.3-1 for MacOSX 10.6 (Snow Leopard) and later on intel

Mac OS X disk image with relocatable application bundle. Needs xquartz (X11) installed for running the development tools. The bundle also provides the commandline tools in the Contents/MacOS directory.

SHA256:1c3fcd3ece40d2a5f047d2c90b5147edfc4476e13a158a440173457010de8128
Sources
Source archive10,507,142 bytesSWI-Prolog source for 8.1.3

Sources in .tar.gz format, including packages and generated documentation files. See build instructions.

SHA256:9cb94b04ce655e34fe6d270e40c4a90edeb4ce0f6e854ebb9e8e0bc254ae1f72
Documentation
PDF file2,468,879 bytesSWI-Prolog 8.1.3 reference manual in PDF

SWI-Prolog reference manual as PDF file. This does not include the package documentation.

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Install scripts may download the SHA256 checksum by appending .sha256 to the file name. Scripts can download the latest version by replacing the version of the file with latest. This causes the server to reply with the location of the latest version using an HTTP 303 See Other message.

About the development releases

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

% git clone https://github.com/SWI-Prolog/swipl-devel.git

Should I use the development release or the stable one?

Many active SWI-Prolog users track the development releases or GIT versions for developing Prolog applications. Most of the time the development versions are fairly stable. Infrequent larger rewrites to the core infrastructure that may cause instability is typically announced on the mailinglist.

Tracking the latest version offers some advantages for you are user:

  • Bug fixes are quickly available.
  • When you are stuck on a missing feature you can use this quickly after it has been added.
  • Although you are a little more often confronted with incompatibilities and regressions, such issues can be discussed and resolved.