Generate, modify, migrate, and debug version-aware sing-box client configuration files for v1.13 and v1.14. Covers TUN and system proxy modes for end-user devices (SFM/SFA/SFI/CLI), RealIP vs FakeIP TUN templates, DNS/routing split rules, remote rule-set downloads, Clash API selectors, and node conversion for VLESS/VMess/Shadowsocks/Trojan/Hysteria2/TUIC/ShadowTLS/AnyTLS. Use when the user mentions sing-box, singbox, SFM/SFA/SFI, TUN/system proxy setup, split routing, DNS hijack, FakeIP, selector behavior, per-app routing, network strategy, TLS fragment/ECH, proxy chaining, or asks to create, update, migrate, or troubleshoot a client config. Does not cover server-side proxy inbound setup.
2026-07-06