CompatibilityRange on SharePoint 2016

Question

Why is following command returning 15 and not 16?

> [Microsoft.SharePoint.SPCompatibilityRange]::NewVersion

MaxCompatibilityLevel         MinCompatibilityLevel     DefaultCompatibilityLevel                      Singular
---------------------         ---------------------     -------------------------                      --------
15                            15                            15                          True

Answer 1

Because Microsoft did not introduce CompatibilityLevel 16, yet. Therefore, the currently highest CompatibilityLevel is 15.