If you’re updating with every release

A small handful of changes in 2019r3.1

Module Color
alpha changed to Integer
Function CMY(cyan As Double, magenta As Double, yellow As Double, alpha As Integer = 0) As Color

ColorGroup
gained operator_compare
Function Operator_Compare(otherColor As Color) As Integer

Module Crypto
added PBKDF2 with HashAlgorithms parameter
Function PBKDF2(salt As String, data As MemoryBlock, iterations As Integer, desiredHashLength As Integer, hashAlgorithm As HashAlgorithms) As MemoryBlock

Class DatabaseColumn
now has a destructor
Sub Destructor()

Class DatabaseRow
added Column setter method
Sub Column(name As String, Assigns value As Variant)

added Destructor
Sub Destructor()

Module String
new overloads for IndexOf
Function IndexOf(Extends s As String, startPosition As Integer, searchString As String, options As ComparisonOptions = ComparisonOptions.CaseInsensitive, locale As Locale = Nil) As Integer

Function IndexOf(Extends s As String, searchString As String, options As ComparisonOptions = ComparisonOptions.CaseInsensitive, locale As Locale = Nil) As Integer

new method LastField
Function LastField(Extends s As String, separator As String) As String

Class TextArea
changed type of SelectionAlignment type
Property SelectionAlignment As TextAlignments

Cant say that so far I’ve used it much.