diff --git a/docs/libcurl/curl_multi_setopt.3 b/docs/libcurl/curl_multi_setopt.3
index 6f88b989b..623daa53f 100644
--- a/docs/libcurl/curl_multi_setopt.3
+++ b/docs/libcurl/curl_multi_setopt.3
@@ -36,7 +36,7 @@ The standard CURLMcode for multi interface error codes. Note that it returns a
 CURLM_UNKNOWN_OPTION if you try setting an option that this version of libcurl
 doesn't know of.
 .SH AVAILABILITY
-This function was added in libcurl 7.16.0
+This function was added in libcurl 7.15.4.
 .SH "SEE ALSO"
 .BR curl_multi_cleanup "(3), " curl_multi_init "(3), "
 .BR curl_multi_socket "(3), " curl_multi_info_read "(3)"
diff --git a/docs/libcurl/curl_multi_socket.3 b/docs/libcurl/curl_multi_socket.3
index 12082ff3f..e5312c840 100644
--- a/docs/libcurl/curl_multi_socket.3
+++ b/docs/libcurl/curl_multi_socket.3
@@ -90,7 +90,7 @@ action.
 
 9. Go back to step 6.
 .SH AVAILABILITY
-This function was added in libcurl 7.16.0
+This function was added in libcurl 7.15.4, although not deemed stable yet.
 .SH "SEE ALSO"
 .BR curl_multi_cleanup "(3), " curl_multi_init "(3), "
 .BR curl_multi_fdset "(3), " curl_multi_info_read "(3)"
diff --git a/docs/libcurl/curl_multi_timeout.3 b/docs/libcurl/curl_multi_timeout.3
index a06bffbdc..b04acf890 100644
--- a/docs/libcurl/curl_multi_timeout.3
+++ b/docs/libcurl/curl_multi_timeout.3
@@ -30,7 +30,7 @@ Call \fBcurl_multi_timeout(3)\fP, then wait for action on the sockets. You
 figure out which sockets to wait for by calling \fBcurl_multi_fdset(3)\fP or
 by a previous call to \fBcurl_multi_socket(3)\fP.
 .SH AVAILABILITY
-This function was added in libcurl 7.16.0
+This function was added in libcurl 7.15.4, although not deemed stable yet.
 .SH "SEE ALSO"
 .BR curl_multi_cleanup "(3), " curl_multi_init "(3), "
 .BR curl_multi_fdset "(3), " curl_multi_info_read "(3), "
diff --git a/docs/libcurl/libcurl-errors.3 b/docs/libcurl/libcurl-errors.3
index 6fe9971dd..baa9bc5fd 100644
--- a/docs/libcurl/libcurl-errors.3
+++ b/docs/libcurl/libcurl-errors.3
@@ -226,7 +226,7 @@ You are doomed.
 This can only be returned if libcurl bugs. Please report it to us!
 .IP "CURLM_BAD_SOCKET (5)"
 The passed-in socket is not a valid one that libcurl already knows about.
-(Added in 7.16.0)
+(Added in 7.15.4)
 .SH "CURLSHcode"
 The "share" interface will return a CURLSHcode to indicate when an error has
 occurred.  Also consider \fIcurl_share_strerror(3)\fP.