Edit: Found the right fork https://adblockplus.org/source
Edit: Found the right fork https://adblockplus.org/source
Unfortunately at the moment the AdBlock Git repository is not public, but I have set up this unofficial one that tracks the changes between each zip published on their releases page. https://github.com/kzar/watchadblock
Specifically if you want to see what they've changed so far have a look at the last couple of commits https://github.com/kzar/watchadblock/commit/afff2b47024f3a55... https://github.com/kzar/watchadblock/commit/f1f52f47e276d29e...
Nice, this makes it much easier to track changes. For those interested, here is a URL which can be used as a template to diff across releases:
https://github.com/kzar/watchadblock/compare/[old version]...[new version]
For example, for all the changes between releases 2.40 and 2.41.1: