Is this project still maintained?

[pi3ch]

They are quite a few pull requests waiting and issues open. Anyone still looking after this project?

I hope it is still alive because it is one of the cleanest reference I've found.

[thec00n]

There are currently no core contributors that can triage and merge new content.

[thec00n]

see https://github.com/SmartContractSecurity/SWC-registry/issues/276

[chaals]

This is not really maintained. I have access and am slowly churning through open issues / PRs, but this is superseded by (among other things I guess) the EEA EthTrust Security Levels specification since at least 2022.