Enhancement: Added support for imaginary number literals (e.g. "3.4j").
Enhancement: Added new configuration setting reportImplicitStringConcatenation that generates errors or warnings when implicit string concatenation (multiple string literals in a row) are used.
Enhancement: Added type constraint support for conditional expressions that include assignment (walrus) operators.
Bug Fix: Fixed a bug in parser and a bug in completion provider that impacted completion suggestions within decorators.
Bug Fix: Fixed bug in TypeVar matching logic for case where a union includes multiple types, some of which are subclasses of the other.