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Download SWI-Prolog development versions

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Binaries
Windows version (64-bits)12,486,208 bytesSWI-Prolog 8.3.29-1 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:f3718ec9164f3698c7f52766dc6cffad4ebb7f6d9ed139c17b8a6a64c5c459f2
Windows version (32-bits)12,470,533 bytesSWI-Prolog 8.3.29-1 for Microsoft Windows (32 bit)

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

SHA256:0dc3673e8d62ef0ecf7d93fa5dfca9fcdda2216dbae11d2a3089d74e727bca7a
MacOS bundle28,178,812 bytesSWI-Prolog 8.3.29-1 for MacOSX 10.12 (Sierra) 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. Users of older MacOS versions are adviced to use Macports, Homebrew or install from source.

SHA256:444b620439f386ba56115f13ef299a74b396ed480dd4cbcbc70a68833e49847a
Sources
Source archive11,362,591 bytesSWI-Prolog source for 8.3.29

Sources in .tar.gz format, including packages. See build instructions. See also the GIT repository.

SHA256:4e15d8bde2d9da4fd504e17e10cbd7a7c3a77104972f10772396bad5015a9ee0
Documentation
PDF file2,892,020 bytesSWI-Prolog 8.3.29 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.