v0.3.0

What's New

• Scan diffing -- `--save` / `--diff` to compare scans over time
• OS fingerprinting -- automatic `nmap -O` when running as root; smarter host classification
• Watch mode -- `--watch 60` to rescan and report changes continuously
• Multi-subnet -- pass multiple CIDRs in one command
• Known-host inventory -- `--inventory hosts.csv` to flag rogue/missing hosts
• OS column added to table output
• Full CLI reference in README
  Zero new dependencies.

v0.2.0

• Default scan changed from ping to tcp (collects ports without root)
• MAC/vendor info collected when run with sudo
• Added scan types comparison table to README
• PNG/JPEG/SVG image export

v0.1.0

Initial release of whoson -- lightweight subnet audit tool.

Install

pip install whoson

Features

• Scan subnets with ping, TCP connect, or SYN stealth scans
• Host classification (gateway, server, printer, workstation)
• Export topology as PNG, JPEG, or SVG
• Export data as JSON or CSV
• 2 runtime dependencies (python-nmap, Pillow)