We are happy to announce version 4.0 of the PowerShell Beautifier package. This is a major release. Previous versions relied on a custom tokenizer which, lacking knowledge of the language grammar, could not always correctly classify tokens. This required extensive workaround code and inevitably led to edge cases where deobfuscation would fail.

Version 4.0 replaces the tokenizer with a real PowerShell parser. Every token is now correctly classified from the start, resulting in more reliable deobfuscation across the board: format strings, character expressions, encoded arrays, string manipulation, alias resolution and variable replacement all benefit from this improved foundation.