line numbers in shipped code are now almost the same (within 3) as the repository source, for easier debugging
Changes content once again included manually, rather than extracted directly from git! (there are release tests to ensure that the file is kept current.)
Improve error message when failing to find a suitable backend (RT#87751)
when no backend is available at install time, JSON::PP is used as the default prereq rather than JSON.pm (re RT#67967)
documentation updated to recommend JSON::MaybeXS instead of JSON.pm for new code