[zmk_]

Removing eye() in favour of a new construct is weird after all this time. It seems to me like v0.7 will break a lot of my current code.

[nalimilan]

Existing code won't break as a deprecation is in place. And the replacement is very simple: Matrix(I, m, n), Matrix{Float64}(I, m, n) or even just I depending on the use case.