Bump major version when breaking changes are introduced

[vbuberen]

This is not a bug report, but a request for future to not introduce breaking changes without changing the major version as it breaks projects for lots of people. Changes introduced in 4.0.1 with class renaming had to be a bump to 5.0.0

Please read https://semver.org/ and use it for future releases.

[lukef]

Yes. I realised after publishing that there were breaking changes. I'm prepping a 5.0 release too, but unfortunately I can't unroll the dice here. Thanks for the report though.