CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP_VERSION, long version);
.SH DESCRIPTION
-Pass \fIversion\fP a long, set to one of the values described below. They
-force libcurl to use the specific HTTP versions. This is not sensible to do
-unless you have a good reason. You have to set this option if you want to use
+Pass \fIversion\fP a long, set to one of the values described below. They ask
+libcurl to use the specific HTTP versions. This is not sensible to do unless
+you have a good reason. You have to set this option if you want to use
libcurl's HTTP/2 support.
+Note that the HTTP version is just a request. libcurl will still prioritize to
+re-use an existing connection so it might then re-use a connection using a
+HTTP version you haven't asked for.
+
.IP CURL_HTTP_VERSION_NONE
We don't care about what version the library uses. libcurl will use whatever
it thinks fit.