=== modified file 'src/HttpMsg.cc'
--- src/HttpMsg.cc	2009-12-31 11:46:41 +0000
+++ src/HttpMsg.cc	2010-03-05 14:27:25 +0000
@@ -321,18 +321,13 @@
 int
 httpMsgIsPersistent(HttpVersion const &http_ver, const HttpHeader * hdr)
 {
-#if WHEN_SQUID_IS_HTTP1_1
-
     if ((http_ver.major >= 1) && (http_ver.minor >= 1)) {
         /*
          * for modern versions of HTTP: persistent unless there is
          * a "Connection: close" header.
          */
         return !httpHeaderHasConnDir(hdr, "close");
-    } else
-#else
-    {
-#endif
+    } else {
         /*
          * Persistent connections in Netscape 3.x are allegedly broken,
          * return false if it is a browser connection.  If there is a
@@ -340,17 +335,17 @@
          */
         const char *agent = hdr->getStr(HDR_USER_AGENT);
 
-    if (agent && !hdr->has(HDR_VIA)) {
-        if (!strncasecmp(agent, "Mozilla/3.", 10))
-            return 0;
-
-        if (!strncasecmp(agent, "Netscape/3.", 11))
-            return 0;
+        if (agent && !hdr->has(HDR_VIA)) {
+            if (!strncasecmp(agent, "Mozilla/3.", 10))
+                return 0;
+
+            if (!strncasecmp(agent, "Netscape/3.", 11))
+                return 0;
+        }
+
+        /* for old versions of HTTP: persistent if has "keep-alive" */
+        return httpHeaderHasConnDir(hdr, "keep-alive");
     }
-
-    /* for old versions of HTTP: persistent if has "keep-alive" */
-    return httpHeaderHasConnDir(hdr, "keep-alive");
-}
 }
 
 void HttpMsg::packInto(Packer *p, bool full_uri) const

=== modified file 'src/HttpRequest.cc'
--- src/HttpRequest.cc	2010-02-25 23:00:39 +0000
+++ src/HttpRequest.cc	2010-03-05 14:20:16 +0000
@@ -327,8 +327,9 @@
 {
     assert(p);
     /* pack request-line */
-    packerPrintf(p, "%s " SQUIDSTRINGPH " HTTP/1.0\r\n",
-                 RequestMethodStr(method), SQUIDSTRINGPRINT(urlpath));
+    packerPrintf(p, "%s " SQUIDSTRINGPH " HTTP/%d.%d\r\n",
+                 RequestMethodStr(method), SQUIDSTRINGPRINT(urlpath),
+                 http_ver.major, http_ver.minor);
     /* headers */
     header.packInto(p);
     /* trailer */

=== modified file 'src/client_side.cc'
--- src/client_side.cc	2010-03-05 10:33:07 +0000
+++ src/client_side.cc	2010-03-05 14:37:07 +0000
@@ -716,8 +716,8 @@
     debugs(33, 3, "clientSetKeepaliveFlag: method = " <<
            RequestMethodStr(request->method));
 
+    /* We are HTTP/1.0 facing clients still */
     HttpVersion http_ver(1,0);
-    /* we are HTTP/1.0, no matter what the client requests... */
 
     if (httpMsgIsPersistent(http_ver, req_hdr))
         request->flags.proxy_keepalive = 1;

=== modified file 'src/client_side_request.cc'
--- src/client_side_request.cc	2010-02-07 03:38:46 +0000
+++ src/client_side_request.cc	2010-03-05 14:25:52 +0000
@@ -367,8 +367,8 @@
 
     request->my_addr.SetPort(0);
 
-    /* RFC 2616 says 'upgrade' to our 1.0 regardless of what the client is */
-    HttpVersion http_ver(1,0);
+    /* Our version is HTTP/1.1 */
+    HttpVersion http_ver(1,1);
     request->http_ver = http_ver;
 
     http->request = HTTPMSGLOCK(request);

=== modified file 'src/http.cc'
--- src/http.cc	2010-03-05 01:38:57 +0000
+++ src/http.cc	2010-03-05 14:20:16 +0000
@@ -1940,7 +1940,7 @@
                                   http_state_flags stateFlags)
 {
     const int offset = mb->size;
-    HttpVersion httpver(1,0);
+    HttpVersion httpver(1,1);
     mb->Printf("%s %s HTTP/%d.%d\r\n",
                RequestMethodStr(aRequest->method),
                aRequest->urlpath.size() ? aRequest->urlpath.termedBuf() : "/",
@@ -2163,15 +2163,6 @@
     deleteThis("HttpStateData::abortTransaction");
 }
 
-#if DEAD_CODE
-void
-httpBuildVersion(HttpVersion * version, unsigned int major, unsigned int minor)
-{
-    version->major = major;
-    version->minor = minor;
-}
-#endif
-
 HttpRequest *
 HttpStateData::originalRequest()
 {

=== modified file 'src/icmp/net_db.cc'
--- src/icmp/net_db.cc	2010-02-06 06:32:11 +0000
+++ src/icmp/net_db.cc	2010-03-05 14:20:16 +0000
@@ -1321,7 +1321,7 @@
 
     HTTPMSGLOCK(ex->r);
     assert(NULL != ex->r);
-    ex->r->http_ver = HttpVersion(1,0);
+    ex->r->http_ver = HttpVersion(1,1);
     ex->connstate = STATE_HEADER;
     ex->e = storeCreateEntry(uri, uri, request_flags(), METHOD_GET);
     ex->buf_sz = NETDB_REQBUF_SZ;

=== modified file 'src/tunnel.cc'
--- src/tunnel.cc	2009-09-04 11:38:28 +0000
+++ src/tunnel.cc	2010-03-05 14:20:16 +0000
@@ -710,7 +710,7 @@
     flags.proxying = tunnelState->request->flags.proxying;
     MemBuf mb;
     mb.init();
-    mb.Printf("CONNECT %s HTTP/1.0\r\n", tunnelState->url);
+    mb.Printf("CONNECT %s HTTP/1.1\r\n", tunnelState->url);
     HttpStateData::httpBuildRequestHeader(tunnelState->request,
                                           tunnelState->request,
                                           NULL,			/* StoreEntry */