title: What should I update to resolve RCurl SSL version issue
body: <p>When I run a sample code</p>
  <pre><code>require(RCurl)
  search_example &lt;- postForm(
    &quot;https://en.wikipedia.org/w/api.php&quot;, 
    action  = &quot;opensearch&quot;, 
    search  = &quot;Te&quot;, 
    format  = &quot;json&quot;
  )
  </code></pre>
  <p>I get an error</p>
  <blockquote>
  <p>Error in function (type, msg, asError = TRUE)  :    error:1407742E:SSL
  routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version</p>
  </blockquote>
  <p>I understand that it's not an issue of RCurl itself but rather of SSL library it is using - but what exactly should I update?<br />
  Notably, standard methods from <code>utils</code> work without errors:</p>
  <pre><code>url_https &lt;- &quot;https://en.wikipedia.org/w/api.php?action=opensearch&amp;search=Te&quot;
  download.file(url_https, tempfile(),  method = &quot;libcurl&quot;)
  download.file(url_https, tempfile(),  method = &quot;curl&quot;)
  </code></pre>
  <p>I'm under Windows 10 (Pro, 64-bit), R version 3.6.1, RCurl package version 1.98-1.2.
  <code>RCurl::curlVersion()$ssl_version</code> gives the following:</p>
  <pre><code>$age
  [1] 3
  
  $version
  [1] &quot;7.40.0&quot;
  
  $vesion_num
  [1] 468992
  
  $host
  [1] &quot;x86_64-pc-win32&quot;
  
  $features
        ssl      libz      ntlm asynchdns    spnego largefile       idn      sspi 
          4         8        16       128       256       512      1024      2048 
  
  $ssl_version
  [1] &quot;OpenSSL/1.0.0o&quot;
  
  $ssl_version_num
  [1] 0
  
  $libz_version
  [1] &quot;1.2.8&quot;
  
  $protocols
   [1] &quot;dict&quot;   &quot;file&quot;   &quot;ftp&quot;    &quot;ftps&quot;   &quot;gopher&quot; &quot;http&quot;   &quot;https&quot;  &quot;imap&quot;   &quot;imaps&quot;  &quot;ldap&quot;   &quot;pop3&quot;   &quot;pop3s&quot;  &quot;rtmp&quot;   &quot;rtsp&quot;  
  [15] &quot;scp&quot;    &quot;sftp&quot;   &quot;smtp&quot;   &quot;smtps&quot;  &quot;telnet&quot; &quot;tftp&quot;  
  
  $ares
  [1] &quot;&quot;
  
  $ares_num
  [1] 0
  
  $libidn
  [1] &quot;&quot;
  </code></pre>