v1.70.0rc6

[1.70.0] - 2026-06-xx

• ADDED: TUN-interface packet engine for devices without NFQUEUE - b4 normally receives the packets it processes through the router's firewall (iptables/nftables), which needs kernel modules that some minimal or stripped-down devices lack, so b4 could not run on them at all. A new engine mode under Settings → Feature Flags lets b4 take traffic through a virtual network interface (a TUN device) instead. Choose the uplink b4 sends through (for example eth0, wan0, or an L2TP/PPP tunnel); by default only the addresses of your enabled sets pass through the virtual interface, leaving the rest of the traffic on its normal path. Covers IPv4 for now. The default NFQUEUE engine is unchanged, so existing setups are unaffected.

What's Changed

• fix: resolve MTProto proxy connection issues on restricted networks by @DanielLavrushin in #255

Full Changelog: v1.69.0...v1.70.0rc6