documentation: Improve `local` DNS server

docs/configuration/dns/server/local.md

@@ -2,6 +2,10 @@
 icon: material/new-box
 ---
 
+!!! quote "Changes in sing-box 1.13.0"
+
+    :material-plus: [prefer_go](#prefer_go)  
+
 !!! question "Since sing-box 1.12.0"
 
 # Local
@@ -15,6 +19,7 @@ icon: material/new-box
       {
         "type": "local",
         "tag": "",
+        "prefer_go": false
 
         // Dial Fields
       }
@@ -24,10 +29,31 @@ icon: material/new-box
 ```
 
 !!! info "Difference from legacy local server"
-    
+
     * The old legacy local server only handles IP requests; the new one handles all types of requests and supports concurrent for IP requests.
     * The old local server uses default outbound by default unless detour is specified; the new one uses dialer just like outbound, which is equivalent to using an empty direct outbound by default.
 
+### Fields
+
+#### prefer_go
+
+!!! question "Since sing-box 1.13.0"
+
+When enabled, `local` DNS server will resolve DNS by dialing itself whenever possible.
+
+Specifically, it disables following behaviors which was added as features in sing-box 1.13.0:
+
+* On Apple platforms: Use `libresolv` for resolution, as it is the only one that works properly with NetworkExtension
+  that overrides DNS servers (DHCP is also possible but is not considered).
+* On Linux: Resolve through `systemd-resolvd`'s DBus interface when available.
+
+As a sole exception, it cannot disable the following behavior:
+
+In the Android graphical client, the `local` DNS server will always resolve DNS through the platform interface,
+as there is no other way to obtain upstream DNS servers. 
+
+On devices running Android versions lower than 10, this interface can only resolve IP queries.
+
 ### Dial Fields
 
 See [Dial Fields](/configuration/shared/dial/) for details.