OpenLink Virtuoso Open-Source Edition: Downloads Upgrading Existing Virtuoso Installations Before upgrading an existing installation of Virtuoso Open Source Edition and/or OpenLink Data Spaces, please see these instructions. Virtuoso Source Code We recommend these Build Instructions for compiling from source. Pre-built binaries for Windows The build process on Windows is rather more complex than on other platforms, so we've made pre-built Windows packages available for: Virtuoso 7.2.4 (as of 2016-04-25) 64-bit (x86_64) 32-bit builds are not possible, due to changes in the Virtuoso engine between v6 and v7 Virtuoso 6.1.8 (as of 2013-12-11) 64-bit (x86_64) 32-bit (x86) You can manually browse to locate pre-built binaries of other versions. Latest source code on Github The latest source code for Virtuoso may be checked-out from Virtuoso on Github using $ git clone git://github.com/openlink/virtuoso-opensource.git Our branches are called: stable/7 stable/6 develop/7 develop/6 Please refer to the documentation on Virtuoso Git usage for more details. Occasionally updated source code snapshots on Sourceforge Active development now takes place on github. Primarily for historical purposes, snapshot archives remain available on Sourceforge. You can download these archives from the SourceForge project page for use on any platform. VAD Packages These ready-made VAD packages may be downloaded for use with any Virtuoso binary, whether Open Source or Commercial. ODS Applications See Getting Started with ODS for instructions. The OpenLink Data Spaces source code is currently included in the main Virtuoso source tree.