Our download server holds recent versions of the FieldTrip toolbox code, corresponding to tagged versions on GitHub. In general we also archive the latest released version of every year on https://download.fieldtriptoolbox.org/historical/, which correspond to the persistently archived versions on Zenodo.

If you are looking for a specific version not listed here, you can look at the tagged versions at https://github.com/fieldtrip/fieldtrip/tags. These tagged versions are generated following the development, test and release cycle described here.

Alternatively, you can also check out a specific version using the git software like this:

git clone https://github.com/fieldtrip/fieldtrip.git
git rev-list master -n 1 --first-parent --before=2018-03-07
git checkout ee0774ac2374a2f696e1e373d59435de17bbf3e3  # using the SHA identifier that the previous command returned

To go back from the detached HEAD to the master branch with the latest development version, you would do:

git checkout master