Results here.


  • Bold marks the most recommended version(s).
  • Normal font signals recommended fallback versions in case the previous option fails you (bug reports welcomed).
  • Striked versions are not recommended (either because they’re too old or have known critical bugs).


Jool 4.0 is a compliant SIIT and Stateful NAT64.

Please note that this series is rather new, and though it improves the code in meaningful ways, it should not be considered more mature than 3.5 yet.

Release Date Version .tar.gz Git commit
2019-01-17 4.0.0 Download Link
2019-01-09 4.0.0-rc5 Download Link
2019-01-04 3.6.0-rc4 Download Link
2018-12-26 3.6.0-rc3 Download Link
2018-12-14 3.6.0-rc2 Download Link
2018-11-24 3.6.0-rc1 Download Link

“rc” stands for “Release Candidate.”


Jool 3.5 is also a compliant SIIT and Stateful NAT64.

3.5.7 is the latest version. It is also considered the most mature version of Jool.

Note! This site’s documentation pertains to the new 4.0 series.

You can download a copy of the Jool 3.5 documentation here.

Release Date Version .zip .tar.gz Git commit
2018-05-04 3.5.7 Download - Link
2018-01-16 3.5.6 Download - Link
2017-11-23 3.5.5 Download - Link
2017-07-25 3.5.4 Download - Link
2017-03-09 3.5.3 Download - Link
2016-12-06 3.5.2 Download - Link
2016-12-02 3.5.1 Download - Link
2016-10-07 3.5.0 Download - Link
2018-05-28 3.5 - 3.6 development hybrid - Download Link

Older releases

Versions 3.4 and below are no longer supported because of licensing issues. You can still find the old releases (and corresponding documentation) in the release repository.