Change Log: 2.090.1

D1 operator overloads have been deprecated in v2.088.0. They historically had priority over D2 operator overload, and that priority was kept as is even after deprecating them.

One main difference between D1 and D2 operator overload is that D1's are virtual by default, while the D2 operator overloading scheme relies on template, and so cannot be virtual. Code relying on virtuality of operator can be trivially adapted by providing a D2-style operator overload that forwards to a virtual method.

However, as D1 operator overloads take priority, the deprecation message will be issued even if a D2 operator overload is present. This means that code relying on virtual operators would need not only to introduce the aforementioned D2-style overload, but also to rename their method not to match the reserved D1 names. This in turns forces libraries to introduce a breaking change in order to silence the deprecation.

Starting from this release, D2-style operator overloads take priority over D1-style, making it trivial to forward the former to the later.