Runtimes changelog not complete (4.5.12 log missing)

Hello Appgyver Team, there is no mention of 4.5.12 runtime in the change log: SAP AppGyver Changelog;
I am noticing a breaking change in my app between 4.5.7 and 4.5.12. The 4.5.12 is missing from the change log.
Can you please provide the log of changes between 4.5.7 and 4.5.12? Why would a minor runtime revision cause a breaking change in my app behaviour ? In this case this should have been a rather major runtime change?

kind regards; Piotr