Will the v3.0.0 preview version become available through conan?
I intend to make v3 available through conan, but from the tasks in backlog it has a very low priority, similarly to providing single header version.
If you have experience with conan, you can contribute the required changes to speed it up.
What's still open respectively where can I help? I'm not an expert but a casual Conan user, maybe I can give you a hand.
I think there are 2 things that need work for v3 to show up on Conan:
1) Catch's Conan recipe likely needs to be updated to properly use the static library build in v3
2) The Conan publishing script needs to be updated to publish to testing (or whatever the usual non-stable name is) under some circumstances (currently it only publishes to stable when a stable tag is made).
Catch2 is also included in Conan-center by the Conan folks, so you might also try asking them to provide a recipe for v3.
I'm currently working on this.
Conan center ships only stable releases, so I have updated the conanfile for v3.
Bintray should now have v3.0.0 preview uploaded
https://bintray.com/catchorg/Catch2/catch2%3Acatchorg