Can't really agree. 7.3 differs so much from 7.0 that migrating is just not possible without careful code rewrite. How is a version good when it is incompatible

Can't really agree. 7.3 differs so much from 7.0 that migrating is just not possible without careful code rewrite. How is a version good when it is incompatible inside minor version releases? I know little about version 8 though, but as long as they are not abandoning backwards compatibility it won't make up for the language flaws