DanielLavrushin/b4 v1.21.0

on GitHub

[1.21.0] - 2025-12-07

• FIXED: Slow set save operations - improve performance.

• ADDED: New FRAG strategies designed for modern DPI (TSPU):

  • Combo (recommended) - multi-technique: first-byte delay + extension split + SNI split + disorder
  • Disorder - sends real segments out-of-order with timing jitter, no fake packets
  • Overlap - overlapping TCP segments where second overwrites first (RFC 793 behavior)
  • Extension Split - splits TLS ClientHello within extensions array before SNI
  • First-Byte Desync - sends 1 byte, delays, sends rest (exploits DPI timeouts)
  • Hybrid - evasion strategy combining desync, fake SNI, and disorder techniques

• IMPROVED: Skip private destination IP packets processing.

Full Changelog: v1.20.3...v1.21.0