[1] https://github.com/web-platform-tests/wpt

You're not going to find some hobbyist coming up with a useful conformance or coverage test suite for free. It's intensive, expensive, and arduous.

Such things are mandatory, however, if you are a C++ vendor targeting ISO 26262 or IEC 61508 or similar -- basically, software that could kill you if it's done wrong. It's a niche with money and motivation.

Then I wrote a bot that watches all known (and most importantly, reliable) sources for changes, that then notifies me. The data itself is kept in very simple yaml files. So whenever something changes, I verify and update the info accordingly (The site itself is then regenerated and uploaded automatically).

For features that are not fully implemented yet, or where the vendor does not provide any information (e.g. Apple's conformance table), I set up a conformance test suite on my machine that runs most of these across all toolchains.

Please note that I won't be the only person that maintains this site. I'm in the process of open-sourcing and automating most of it, so that everyone can contribute via GitHub. It's just that keeping up with C++ is part of my job, and also a personal interest of mine. So I do this as a "labour of love".

There are not enough oldtimers alive to do it, and the younger guys refuse to learn it. That drove up the hourly salaries enormously.

Then there are whole industries where only C, C++ and Assembly matter, including standards, so it will take a while for new contenders to be taken seriously on such industries.

As for feature names: I agree that the paper titles tend to be very technical / niche. However, I didn't want to distort them and rename them, since the site is targeted at the in-the-know population you've mentioned. Do you have an idea how this could be improved?

Regarding the search: This is something I'm working on improving, so that coarse searches like "constexp sharedptr" would correctly yield the constexpr std::shared_ptr proposal.