The fetcher should correctly handle checking upstream archives and gits to determine if newer versions are available and be able to parse that information using REGEX similar to the distro bbclass, but make it core to bitbake.
Merged at: https://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=7587877e5d683a30c2bd5e1ac1c4e327fac1ee1c https://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=6bb241a278135e760d50380fd3f7b0ff52414328