In my last post , I detailed the differences among read/write, read only, frozen and immutable collection types.  I described how immutable collections come with a hit to the garbage collector due to the garbage they generate during mutations. ...

[Update: a more recent post with new data on attainable performance of immutable collections ] The topics of immutability and functional programming has fascinated me lately.  Mostly because of my work on the Visual Studio Common Project System ...