FINDING · DEPLOYMENT

sing-box 1.14 deprecates several DNS configuration fields — including old address-filter fields, the old `strategy` action, and `rule_set_ip_cidr_accept_empty` — with removal planned for version 1.16. Configurations using these fields will continue running until 1.16 but accumulate silent technical debt.

From 2026-anon-gpt-6-astra — GPT-6 Astra 跨过网络安全门槛：机场数据泄露、平台问责与吉隆恢复周报 | 二毛 · §sing-box 1.14 · 2026 · ermao.net (Chinese-language circumvention blog)

Implications

Circumvention operators using sing-box as a routing core should audit all DNS rules against the 1.14 deprecation list immediately; waiting until 1.16 means debugging version changes, parsing failures, and network interference simultaneously.
Downstream tools that generate or distribute sing-box configs (subscription converters, managed-config services) must update templates before the 1.16 removal window to avoid silently broken user configurations.