diff --git a/src/cfgparse.c b/src/cfgparse.c
index 08adccdc1..516580873 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -3430,76 +3430,10 @@ int cfg_parse_listen(const char *file, int linenum, char **args, int kwm)
 		}
 	}
 	else if (!strcmp(args[0], "appsession")) {  /* cookie name */
-		int cur_arg;
-
-		if (curproxy == &defproxy) {
-			Alert("parsing [%s:%d] : '%s' not allowed in 'defaults' section.\n", file, linenum, args[0]);
-			err_code |= ERR_ALERT | ERR_FATAL;
-			goto out;
-		}
-
-		if (warnifnotcap(curproxy, PR_CAP_BE, file, linenum, args[0], NULL))
-			err_code |= ERR_WARN;
-
-		if (*(args[5]) == 0) {
-			Alert("parsing [%s:%d] : '%s' expects 'appsession' <cookie_name> 'len' <len> 'timeout' <timeout> [options*].\n",
-			      file, linenum, args[0]);
-			err_code |= ERR_ALERT | ERR_FATAL;
-			goto out;
-		}
-		have_appsession = 1;
-		free(curproxy->appsession_name);
-		curproxy->appsession_name = strdup(args[1]);
-		curproxy->appsession_name_len = strlen(curproxy->appsession_name);
-		curproxy->appsession_len = atoi(args[3]);
-		err = parse_time_err(args[5], &val, TIME_UNIT_MS);
-		if (err) {
-			Alert("parsing [%s:%d] : unexpected character '%c' in %s timeout.\n",
-			      file, linenum, *err, args[0]);
-			err_code |= ERR_ALERT | ERR_FATAL;
-			goto out;
-		}
-		curproxy->timeout.appsession = val;
-
-		if (appsession_hash_init(&(curproxy->htbl_proxy), destroy) == 0) {
-			Alert("parsing [%s:%d] : out of memory.\n", file, linenum);
-			err_code |= ERR_ALERT | ERR_ABORT;
-			goto out;
-		}
-
-		cur_arg = 6;
-		curproxy->options2 &= ~PR_O2_AS_REQL;
-		curproxy->options2 &= ~PR_O2_AS_M_ANY;
-		curproxy->options2 |= PR_O2_AS_M_PP;
-		while (*(args[cur_arg])) {
-			if (!strcmp(args[cur_arg], "request-learn")) {
-				curproxy->options2 |= PR_O2_AS_REQL;
-			} else if (!strcmp(args[cur_arg], "prefix")) {
-				curproxy->options2 |= PR_O2_AS_PFX;
-			} else if (!strcmp(args[cur_arg], "mode")) {
-				if (!*args[cur_arg + 1]) {
-					Alert("parsing [%s:%d] : '%s': missing argument for '%s'.\n",
-					      file, linenum, args[0], args[cur_arg]);
-					err_code |= ERR_ALERT | ERR_FATAL;
-					goto out;
-				}
-
-				cur_arg++;
-				if (!strcmp(args[cur_arg], "query-string")) {
-					curproxy->options2 &= ~PR_O2_AS_M_ANY;
-					curproxy->options2 |= PR_O2_AS_M_QS;
-				} else if (!strcmp(args[cur_arg], "path-parameters")) {
-					curproxy->options2 &= ~PR_O2_AS_M_ANY;
-					curproxy->options2 |= PR_O2_AS_M_PP;
-				} else {
-					Alert("parsing [%s:%d] : unknown mode '%s'\n", file, linenum, args[cur_arg]);
-					err_code |= ERR_ALERT | ERR_FATAL;
-					goto out;
-				}
-			}
-			cur_arg++;
-		}
-	} /* Url App Session */
+		Alert("parsing [%s:%d] : '%s' is not supported anymore, please check the documentation.\n", file, linenum, args[0]);
+		err_code |= ERR_ALERT | ERR_FATAL;
+		goto out;
+	}
 	else if (!strcmp(args[0], "capture")) {
 		if (warnifnotcap(curproxy, PR_CAP_FE, file, linenum, args[0], NULL))
 			err_code |= ERR_WARN;
@@ -8565,10 +8499,6 @@ out_uri_auth_compat:
 					        curproxy->id);
 				}
 			}
-			if (curproxy->appsession_name) {
-				Warning("Proxy '%s': appsession will not work correctly in multi-process mode.\n",
-				        curproxy->id);
-			}
 			if (!LIST_ISEMPTY(&curproxy->sticking_rules)) {
 				Warning("Proxy '%s': sticking rules will not work correctly in multi-process mode.\n",
 				        curproxy->id);
diff --git a/src/haproxy.c b/src/haproxy.c
index 4b4fdee70..88947085f 100644
--- a/src/haproxy.c
+++ b/src/haproxy.c
@@ -56,7 +56,6 @@
 #include <assert.h>
 #endif
 
-#include <common/appsession.h>
 #include <common/base64.h>
 #include <common/cfgparse.h>
 #include <common/chunk.h>
@@ -745,7 +744,6 @@ void init(int argc, char **argv)
 		exit(1);
 	}
 
-	have_appsession = 0;
 	global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
 
 	init_default_instance();
@@ -825,9 +823,6 @@ void init(int argc, char **argv)
 	init_51degrees();
 #endif
 
-	if (have_appsession)
-		appsession_init();
-
 	if (start_checks() < 0)
 		exit(1);
 
@@ -1343,8 +1338,6 @@ void deinit(void)
 		deinit_stick_rules(&p->storersp_rules);
 		deinit_stick_rules(&p->sticking_rules);
 
-		free(p->appsession_name);
-
 		h = p->req_cap;
 		while (h) {
 			h_next = h->next;
@@ -1490,17 +1483,11 @@ void deinit(void)
 	pool_destroy2(pool2_requri);
 	pool_destroy2(pool2_task);
 	pool_destroy2(pool2_capture);
-	pool_destroy2(pool2_appsess);
 	pool_destroy2(pool2_pendconn);
 	pool_destroy2(pool2_sig_handlers);
 	pool_destroy2(pool2_hdr_idx);
 	pool_destroy2(pool2_http_txn);
     
-	if (have_appsession) {
-		pool_destroy2(apools.serverid);
-		pool_destroy2(apools.sessid);
-	}
-
 	deinit_pollers();
 } /* end deinit() */
 
@@ -1886,8 +1873,6 @@ int main(int argc, char **argv)
 	 */
 	run_poll_loop();
 
-	/* Free all Hash Keys and all Hash elements */
-	appsession_cleanup();
 	/* Do some cleanup */ 
 	deinit();