Yes, instrumentation to be inserted.

Thank you! Just to clarify: this is advice on where to insert my own tracing...

https://issues.dlang.org/show_bug.cgi?id=20960

...to show that only array allocations are traced, but not allocations of individual objects. dmd...

All (?) `new` allocations in DMD are redirected to https://github.com/dlang/dmd/blob/b6b0c0f41a476c4eaa88ba106fb4de1175d40440...

Please post to bugzilla.

No, it does not save type information.
It generates a stack trace for every allocation...

Thanks. Does it provide type information about the objects allocated?

You can also use heaptrack for tracing allocations under Linux. It uses LD_PRELOAD to...

...seems to show that only array allocations are traced, but not allocations of individual objects.