• C# 7.3 released with VS2017 v15.7 (May 2018). New features: enum, delegate and unmanagedgeneric type constraintsref reassignment. Unsafe improvements: stackalloc initialization, unpinned indexed fixed buffers, custom fixed statements. Improved overloading resolution. Expression variables in initializers and queries. == and != defined for tuples. Auto-properties' backing fields can now be targeted by attributes.