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The stability branch series is a fork of the Chicken Scheme core which backports certain useful bugfixes and minor features from the future to "stable" maintenance versions.
Each stability branch is branched off a tagged version of the master branch, such as 4.7.0, and named like stability/4.7.0, where 4.7.0 represents the branch point. Stability branches may also sprout from development versions such as 4.7.3, depending on demand.
Releases for stability/4.7.0 have version numbers like 4.7.0.x-st (for example, 126.96.36.199-st) and are tagged in the repository with this version number. The tag and version number are updated together.
NEWS.stability in the repository contains a list of changes in each release.
The stability/4.7.0 branch is recommended for general use and is based on Chicken 4.7.0.
The latest version is 188.8.131.52-st (changes).
Obtaining the code
Distribution tarballs are not yet provided. You will need to obtain the code from git, and build it with an existing copy of Chicken; the latest release version should work fine.
To clone the stability branch into chicken-core-stability/:
git clone git://code.call-cc.org/chicken-core.git --branch stability/4.7.0 chicken-core-stability
If you already have a copy of the git repository that you'd like to use, ensure you are up to date and then switch to the stability/4.7.0 branch:
git fetch git checkout stability/4.7.0
To checkout a particular version:
git checkout 184.108.40.206-st
HEAD may have had patches applied after the last tag. The version number will be the same and it should be safe to use HEAD, but you can checkout from the tag if desired.
There is not yet a formal support policy with regards to how long an older stability branch will be maintained once a newer one is available. Generally, we encourage upgrading to the latest release.