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Changelog

v5.1 — 2026-06-23

Safety + polish pass: auto-rollback, locale-independent WiFi, cleaner code.

Added

  • Post-optimization connectivity check + auto-rollback — after every optimization run, waits 5s then tests internet. If broken, automatically calls Invoke-Restore to revert changes. User is never left without network.
  • Optimize-NetworkSpeed now returns $true/$false (applied / rolled back) so callers can report the outcome.
  • Invoke-NetworkReset and Invoke-SmartMode handle the new return value and show whether optimizations stuck or were rolled back.

Changed

  • WiFi reconnect: replaced broken netsh wlan (mojibake on non-English locales) with Get-NetConnectionProfile (CIM API, locale-independent). SSID saved to snapshot for reconnect after reset.
  • Check-Admin: uses throw instead of exit 1 (works correctly when dot-sourced or called from other scripts).
  • Save-Snapshot: backs up existing snapshot instead of refusing (last run may have left unapplied changes).
  • Profile cache TTL: 30d → 7d (laptops change networks frequently).
  • Invoke-Restore: broken into readable per-step blocks instead of one monolithic block.
  • Menu [U]: does not force-quit after undo — returns to menu so user can verify connectivity.

Removed

  • Get-TcpValue (dead code — never called, netsh mojibake on non-English).
  • AdapterTimeout parameter (unused).

v5.0 — 2026-05-27

Major rewrite: adaptive optimization, snapshot/restore, interactive menu.

Added

  • Adaptive TCP optimization: detects CPU, RAM, WiFi/Ethernet, LinkSpeed, RTT, battery → computes optimal values (no hardcode)
  • System profile detection, cached to network-profile.json (stale check: 30 days / adapter change / speed delta >50%)
  • Snapshot + Restore: saves registry, netsh, port range, DNS state to reset-snapshot.json before any modification
  • -Restore flag reverts all changes from snapshot
  • Interactive menu after auto-action: Force reset, Re-optimize, Restore, Quit
  • Reset-snapshot escape hatch: prompts user on relaunch if snapshot exists from crashed run
  • TCP auto-tuning level set based on RAM
  • Russian translit in menu prompts

Changed

  • Save-Snapshot moved to script start (before any action, not just before optimize)
  • One-entry-point UX: single shortcut, menu handles everything
  • Atomic snapshot write (.tmp → rename) to prevent corruption on power loss

Removed

  • Separate desktop shortcuts for each mode (single entry point now)

v4.1 — 2026-05-27

Safety fixes based on Claude code review.

Fixed

  • ipconfig /release now targets specific adapter name (was releasing all adapters, including Bluetooth PAN)
  • Bluetooth exclusion added to Disable-AllVPNAdapters (belt and suspenders)
  • Removed netsh winsock reset and netsh int ip reset (require reboot, pointless in automated flow)
  • Replaced with netsh int ip delete destinationcache (clears stale VPN routes, no reboot)
  • Removed hardcoded DNS override (Set-DnsClientServerAddress) — /renew restores DHCP DNS
  • WiFi auto-connect now picks last saved profile, not first alphabetical
  • Optimize-NetworkSpeed broken into per-step try/catch (was one monolithic block)
  • DCA verification relaxed: warning instead of throw (DCA is server-only feature)

v4.0 — 2026-05-27

Complete rewrite: smart auto-detect, no interactive menu.

Added

  • Smart mode: detects internet DOWN → full reset; UP → optimize only
  • -ForceReset flag to force reset when internet is already working
  • Admin check at script entry
  • Improved adapter detection with fallback chain
  • Log rotation at 1MB

Removed

  • Interactive menu (script runs once, shows result, waits for Enter, exits)
  • All snapshot/preset/proxy/menu functions
  • -Auto, -NoMenu, -Optimize parameters (superseded by smart mode)

v3.x — earlier

Interactive menu version with manual mode selection, presets, proxy config, and snapshot history.