ILSpy 6.1

New Language Features

• C# 9.0: Native ints
• C# 9.0: Attributes on local functions

General

• ILSpy now uses System.Reflection.Metadata 1.8.1

UI Improvements

• Assembly List UX: double-click selects list and dismisses dialog
• Base types treenode: Create a flat list of nodes containing all base types instead of just the direct base types

Bug fixes

• Fix #2050: Ref local variable is inlined incorrectly, changing the exception behavior
• Fix #1903: un-inline argument of unsupported isinst instructions.
• Fix #2073: Ensure the startOffsetVar actually appears in the expected instruction, not somewhere else.
• Fix #2068: ILSpy can't find referenced library even though it's open
• And many other fixes, for a full list click here.