New Language Features

• C# 9.0: record classes
• C# 9.0: with expressions
• C# 9.0: primary constructors

General

• Removed the dependency on Humanizer (see #2232 and #2235)
• Updated ReadyToRun (see #2238, by @cshung)

UI Improvements

• Added setting highlight the current line in the code view (see #2224, by @DickvdBrink)
• Fix #2205: About page should always be opened in a new tab.

Bug fixes

• Fix #1079: CSharpFormattingOptions.AutoPropertyFormatting has no effect
• Fix #2222: switch-expression does not support implicit conversions.
• #2241: Fix possible NRE in TypeProvider.GetTypeFromReference
• Fix #2233: ResourcesFileTreeNode no longer creates child nodes for BAML files
• Fix #2230: do not emit directly consecutive null propagation operators.
• Fix #603: Single element arrays should not span multiple lines
• Fixed crash when loading DLLs with invalid sections in their .deps.json (see #2227, by @bernd5)
• And many other fixes, for a full list click here.