What is the code on the github? is it the latest community edition 126.96.36.199 or something else?
Magento1x code is not available on the Github. Magento2 open source code is available on the GitHub and the latest release is https://github.com/magento/magento2/tree/2.3
Magento 1.9.x latest version is 1.9.4 you can download from below shared url: