CI made me do the documentation as well

docs/libcurl/curl_multi_setopt.md

@@ -68,6 +68,10 @@ CURLMOPT_MAX_HOST_CONNECTIONS(3)
 
 Max simultaneously open connections. See CURLMOPT_MAX_TOTAL_CONNECTIONS(3)
 
+## CURLMOPT_NETWORK_CHANGED
+
+Signal that the network has changed. See CURLMOPT_NETWORK_CHANGED(3)
+
 ## CURLMOPT_PIPELINING
 
 Enable HTTP multiplexing. See CURLMOPT_PIPELINING(3)

docs/libcurl/opts/CURLMOPT_NETWORK_CHANGED.md

@@ -0,0 +1,70 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLMOPT_NETWORK_CHANGED
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_FRESH_CONNECT (3)
+  - CURLOPT_FORBID_REUSE (3)
+Protocol:
+  - All
+Added-in: 8.15.0
+---
+
+# NAME
+
+CURLMOPT_NETWORK_CHANGED - signal network changed
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_NETWORK_CHANGED,
+                            long value);
+~~~
+
+# DESCRIPTION
+
+Pass a long for **value**. The set number determines how the multi
+handle should adapt to a change in the network.
+
+`1`: do not reuse any existing connection in the multi's connection cache.
+This will close all connections that are not in use. Ongoing transfers
+will continue on the connections they operate on.
+
+`2`: in addition to `1` also clear the multi's DNS cache.
+
+This option can be set at any time and repeatedly. Any connection created or
+DNS information cached afterwards is considered fresh again.
+
+This affects only the connection and DNS cache of the multi handle and
+not the ones owned by SHARE handles.
+
+# DEFAULT
+
+0, which means that there was no change.
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURLM *m = curl_multi_init();
+  /* do transfers on the multi handle */
+  /* do not reuse existing connections */
+  curl_multi_setopt(m, CURLMOPT_NETWORK_CHANGED, 1L);
+}
+~~~
+
+# %AVAILABILITY%
+
+# RETURN VALUE
+
+curl_multi_setopt(3) returns a CURLMcode indicating success or error.
+
+CURLM_OK (0) means everything was OK, non-zero means an error occurred, see
+libcurl-errors(3).

docs/libcurl/opts/CURLOPT_FORBID_REUSE.md

@@ -8,6 +8,7 @@ See-also:
   - CURLOPT_FRESH_CONNECT (3)
   - CURLOPT_MAXCONNECTS (3)
   - CURLOPT_MAXLIFETIME_CONN (3)
+  - CURLMOPT_NETWORK_CHANGED (3)
 Protocol:
   - All
 Added-in: 7.7

docs/libcurl/opts/CURLOPT_FRESH_CONNECT.md

@@ -10,6 +10,7 @@ See-also:
   - CURLOPT_FORBID_REUSE (3)
   - CURLOPT_MAXAGE_CONN (3)
   - CURLOPT_MAXLIFETIME_CONN (3)
+  - CURLMOPT_NETWORK_CHANGED (3)
 Added-in: 7.7
 ---
 

docs/libcurl/opts/Makefile.inc

@@ -108,6 +108,7 @@ man_MANS =                                      \
   CURLMOPT_MAX_PIPELINE_LENGTH.3                \
   CURLMOPT_MAX_TOTAL_CONNECTIONS.3              \
   CURLMOPT_MAXCONNECTS.3                        \
+  CURLMOPT_NETWORK_CHANGED.3                    \
   CURLMOPT_PIPELINING.3                         \
   CURLMOPT_PIPELINING_SERVER_BL.3               \
   CURLMOPT_PIPELINING_SITE_BL.3                 \