Released on Jan 9, 2026, This release transforms 8051 Disassembler into a more powerful analysis tool with enhanced code visualization and navigation capabilities. The new Control Flow Graph provides Mermaid-based diagrams that automatically detect jumps, calls, and returns, while the Cross-References system lets you quickly trace how code sections connect to each other. Combined with the new auto-generated labels and improved HEX validation with detailed error messages, version 4.0 makes understanding and debugging 8051 assembly code significantly more intuitive.