diff --git a/src/lceasy.c b/src/lceasy.c
index 72b85b5..a0f89ad 100644
--- a/src/lceasy.c
+++ b/src/lceasy.c
@@ -336,6 +336,33 @@ static int lcurl_easy_set_SHARE(lua_State *L){
   lua_settop(L, 1);
   return 1;
 }
+
+#if LCURL_CURL_VER_GE(7,46,0)
+
+static int lcurl_easy_set_STREAM_DEPENDS_impl(lua_State *L, int opt){
+  lcurl_easy_t *p = lcurl_geteasy(L);
+  lcurl_easy_t *e = lcurl_geteasy_at(L, 2);
+  CURLcode code = curl_easy_setopt(p->curl, opt, e->curl);
+  if(code != CURLE_OK){
+    return lcurl_fail_ex(L, p->err_mode, LCURL_ERROR_EASY, code);
+  }
+
+  lcurl_storage_preserve_iv(L, p->storage, opt, 2);
+
+  lua_settop(L, 1);
+  return 1;
+}
+
+static int lcurl_easy_set_STREAM_DEPENDS(lua_State *L){
+  return lcurl_easy_set_STREAM_DEPENDS_impl(L, CURLOPT_STREAM_DEPENDS);
+}
+
+static int lcurl_easy_set_STREAM_DEPENDS_E(lua_State *L){
+  return lcurl_easy_set_STREAM_DEPENDS_impl(L, CURLOPT_STREAM_DEPENDS_E);
+}
+
+#endif
+
 //}
 
 //{ unset
@@ -522,6 +549,38 @@ static int lcurl_easy_unset_POSTFIELDS(lua_State *L){
   return 1;
 }
 
+#if LCURL_CURL_VER_GE(7,46,0)
+
+static int lcurl_easy_unset_STREAM_DEPENDS(lua_State *L){
+  lcurl_easy_t *p = lcurl_geteasy(L);
+
+  CURLcode code = curl_easy_setopt(p->curl, CURLOPT_STREAM_DEPENDS, NULL);
+  if(code != CURLE_OK){
+    return lcurl_fail_ex(L, p->err_mode, LCURL_ERROR_EASY, code);
+  }
+
+  lcurl_storage_remove_i(L, p->storage, CURLOPT_STREAM_DEPENDS);
+
+  lua_settop(L, 1);
+  return 1;
+}
+
+static int lcurl_easy_unset_STREAM_DEPENDS_E(lua_State *L){
+  lcurl_easy_t *p = lcurl_geteasy(L);
+
+  CURLcode code = curl_easy_setopt(p->curl, CURLOPT_STREAM_DEPENDS_E, NULL);
+  if(code != CURLE_OK){
+    return lcurl_fail_ex(L, p->err_mode, LCURL_ERROR_EASY, code);
+  }
+
+  lcurl_storage_remove_i(L, p->storage, CURLOPT_STREAM_DEPENDS_E);
+
+  lua_settop(L, 1);
+  return 1;
+}
+
+#endif
+
 //}
 
 //}
@@ -907,6 +966,10 @@ static int lcurl_easy_setopt(lua_State *L){
     OPT_ENTRY(readfunction,      READFUNCTION,     TTT, 0, 0)
     OPT_ENTRY(headerfunction,    HEADERFUNCTION,   TTT, 0, 0)
     OPT_ENTRY(progressfunction,  PROGRESSFUNCTION, TTT, 0, 0)
+#if LCURL_CURL_VER_GE(7,46,0)
+    OPT_ENTRY(stream_depends,    STREAM_DEPENDS,   TTT, 0, 0)
+    OPT_ENTRY(stream_depends_e,  STREAM_DEPENDS_E, TTT, 0, 0)
+#endif
   }
 #undef OPT_ENTRY
 
@@ -930,6 +993,10 @@ static int lcurl_easy_unsetopt(lua_State *L){
     OPT_ENTRY(readfunction,      READFUNCTION,     TTT, 0, 0)
     OPT_ENTRY(headerfunction,    HEADERFUNCTION,   TTT, 0, 0)
     OPT_ENTRY(progressfunction,  PROGRESSFUNCTION, TTT, 0, 0)
+#if LCURL_CURL_VER_GE(7,46,0)
+    OPT_ENTRY(stream_depends,    STREAM_DEPENDS,   TTT, 0, 0)
+    OPT_ENTRY(stream_depends_e,  STREAM_DEPENDS_E, TTT, 0, 0)
+#endif
   }
 #undef OPT_ENTRY
 
@@ -990,6 +1057,10 @@ static const struct luaL_Reg lcurl_easy_methods[] = {
   OPT_ENTRY(readfunction,      READFUNCTION,     TTT, 0, 0)
   OPT_ENTRY(headerfunction,    HEADERFUNCTION,   TTT, 0, 0)
   OPT_ENTRY(progressfunction,  PROGRESSFUNCTION, TTT, 0, 0)
+#if LCURL_CURL_VER_GE(7,46,0)
+  OPT_ENTRY(stream_depends,    STREAM_DEPENDS,   TTT, 0, 0)
+  OPT_ENTRY(stream_depends_e,  STREAM_DEPENDS_E, TTT, 0, 0)
+#endif
 #undef OPT_ENTRY
 
 #define OPT_ENTRY(L, N, T, S, D) { "unsetopt_"#L, lcurl_easy_unset_##N },
@@ -1001,6 +1072,10 @@ static const struct luaL_Reg lcurl_easy_methods[] = {
   OPT_ENTRY(readfunction,      READFUNCTION,     TTT, 0, 0)
   OPT_ENTRY(headerfunction,    HEADERFUNCTION,   TTT, 0, 0)
   OPT_ENTRY(progressfunction,  PROGRESSFUNCTION, TTT, 0, 0)
+#if LCURL_CURL_VER_GE(7,46,0)
+  OPT_ENTRY(stream_depends,    STREAM_DEPENDS,   TTT, 0, 0)
+  OPT_ENTRY(stream_depends_e,  STREAM_DEPENDS_E, TTT, 0, 0)
+#endif
 #undef OPT_ENTRY
 
 #define OPT_ENTRY(L, N, T, S) { "getinfo_"#L, lcurl_easy_get_##N },
@@ -1036,6 +1111,10 @@ static const lcurl_const_t lcurl_easy_opt[] = {
   OPT_ENTRY(readfunction,      READFUNCTION,     TTT, 0, 0)
   OPT_ENTRY(headerfunction,    HEADERFUNCTION,   TTT, 0, 0)
   OPT_ENTRY(progressfunction,  PROGRESSFUNCTION, TTT, 0, 0)
+#if LCURL_CURL_VER_GE(7,46,0)
+  OPT_ENTRY(stream_depends,    STREAM_DEPENDS,   TTT, 0, 0)
+  OPT_ENTRY(stream_depends_e,  STREAM_DEPENDS_E, TTT, 0, 0)
+#endif
 #undef OPT_ENTRY
 #undef FLG_ENTRY
 
diff --git a/src/lcerr_easy.h b/src/lcerr_easy.h
index e351ddc..2affc9d 100644
--- a/src/lcerr_easy.h
+++ b/src/lcerr_easy.h
@@ -112,3 +112,9 @@ ERR_ENTRY ( HTTP2                    )
 #else
 ERR_ENTRY ( OBSOLETE16               )
 #endif
+#if LCURL_CURL_VER_GE(7,39,0)
+ERR_ENTRY ( SSL_PINNEDPUBKEYNOTMATCH )
+#endif
+#if LCURL_CURL_VER_GE(7,41,0)
+ERR_ENTRY ( SSL_INVALIDCERTSTATUS    )
+#endif
diff --git a/src/lcflags.h b/src/lcflags.h
index b034b36..0d138ab 100644
--- a/src/lcflags.h
+++ b/src/lcflags.h
@@ -59,9 +59,14 @@ FLG_ENTRY(USESSL_NONE                     )
 FLG_ENTRY(USESSL_TRY                      )
 FLG_ENTRY(USESSL_CONTROL                  )
 FLG_ENTRY(USESSL_ALL                      )
+
+/* Definition of bits for the CURLOPT_SSL_OPTIONS argument: */
 #ifdef CURLSSLOPT_ALLOW_BEAST
 FLG_ENTRY(SSLOPT_ALLOW_BEAST              )
 #endif
+#ifdef CURLSSLOPT_NO_REVOKE
+FLG_ENTRY(SSLOPT_NO_REVOKE                )
+#endif
 
 /* parameter for the CURLOPT_FTP_SSL_CCC option */
 FLG_ENTRY(FTPSSL_CCC_NONE                 )
@@ -146,6 +151,12 @@ FLG_ENTRY(PROTO_RTMPTS                    )
 #ifdef CURLPROTO_GOPHER
 FLG_ENTRY(PROTO_GOPHER                    )
 #endif
+#ifdef CURLPROTO_SMB
+FLG_ENTRY(PROTO_SMB                       )
+#endif
+#ifdef CURLPROTO_SMBS
+FLG_ENTRY(PROTO_SMBS                      )
+#endif
 FLG_ENTRY(PROTO_ALL                       )
 
 FLG_ENTRY(PROXY_HTTP                      ) /* added in 7.10.0 */
diff --git a/src/lchttppost.c b/src/lchttppost.c
index 1ceff82..add1215 100644
--- a/src/lchttppost.c
+++ b/src/lchttppost.c
@@ -16,6 +16,34 @@
 #define LCURL_HTTPPOST_NAME LCURL_PREFIX" HTTPPost"
 static const char *LCURL_HTTPPOST = LCURL_HTTPPOST_NAME;
 
+
+#if LUA_VERSION_NUM >= 503 /* Lua 5.3 */
+
+/*! @fixme detect real types (e.g. float/int32_t) */
+
+#  define LCURL_USE_INTEGER
+
+#endif
+
+#ifdef LCURL_USE_INTEGER
+#  ifdef LUA_32BITS
+#    define LCURL_INT_SIZE_16
+#    define LCURL_INT_SIZE_32
+#  else
+#    define LCURL_INT_SIZE_16
+#    define LCURL_INT_SIZE_32
+#    define LCURL_INT_SIZE_64
+#  endif
+#endif
+
+#if LCURL_CURL_VER_GE(7,46,0)
+# define LCURL_FORM_CONTENTLEN CURLFORM_CONTENTLEN
+# define LCURL_LEN_TYPE curl_off_t
+#else
+# define LCURL_FORM_CONTENTLEN CURLFORM_CONTENTSLENGTH
+# define LCURL_LEN_TYPE long
+#endif
+
 //{ stream
 
 static lcurl_hpost_stream_t *lcurl_hpost_stream_add(lua_State *L, lcurl_hpost_t *p){
@@ -104,8 +132,8 @@ static int lcurl_hpost_add_content(lua_State *L){
   forms[i].option = CURLFORM_END;
 
   code = curl_formadd(&p->post, &p->last,
-    CURLFORM_PTRNAME,       name, CURLFORM_NAMELENGTH,     name_len,
-    CURLFORM_PTRCONTENTS,   cont, CURLFORM_CONTENTSLENGTH, cont_len,
+    CURLFORM_PTRNAME,       name, CURLFORM_NAMELENGTH,   (long)name_len,
+    CURLFORM_PTRCONTENTS,   cont, LCURL_FORM_CONTENTLEN, (LCURL_LEN_TYPE)cont_len,
     CURLFORM_ARRAY,         forms,
   CURLFORM_END);
 
@@ -139,7 +167,7 @@ static int lcurl_hpost_add_buffer(lua_State *L){
   forms[i].option = CURLFORM_END;
 
   code = curl_formadd(&p->post, &p->last, 
-    CURLFORM_PTRNAME,   name, CURLFORM_NAMELENGTH,   name_len,
+    CURLFORM_PTRNAME,   name, CURLFORM_NAMELENGTH,   (long)name_len,
     CURLFORM_BUFFER,    buff,
     CURLFORM_BUFFERPTR, cont, CURLFORM_BUFFERLENGTH, cont_len,
     CURLFORM_ARRAY,     forms,
@@ -202,7 +230,7 @@ static int lcurl_hpost_add_file(lua_State *L){
   forms[i].option = CURLFORM_END;
 
   code = curl_formadd(&p->post, &p->last, 
-    CURLFORM_PTRNAME,   name, CURLFORM_NAMELENGTH,   name_len,
+    CURLFORM_PTRNAME,   name, CURLFORM_NAMELENGTH,   (long)name_len,
     CURLFORM_FILE,      path,
     CURLFORM_ARRAY,     forms,
     CURLFORM_END);
@@ -234,7 +262,6 @@ static int lcurl_hpost_add_stream(lua_State *L){
   int n = 0, i = 3;
   struct curl_forms forms[4];
 
-
   while(1){ // [filename, [type,]] [headers,]
     if(lua_isnone(L, i)){
       lua_pushliteral(L, "stream size required");
@@ -265,7 +292,12 @@ static int lcurl_hpost_add_stream(lua_State *L){
     }
     ++i;
   }
+
+#if defined(LCURL_INT_SIZE_64) && LCURL_CURL_VER_GE(7,46,0)
+  len = luaL_checinteger(L, i);
+#else
   len = luaL_checklong(L, i);
+#endif
 
   lcurl_set_callback(L, &rd, i + 1, "read");
 
@@ -290,8 +322,8 @@ static int lcurl_hpost_add_stream(lua_State *L){
   stream->rd = rd;
 
   code = curl_formadd(&p->post, &p->last, 
-    CURLFORM_PTRNAME,   name,   CURLFORM_NAMELENGTH,     name_len,
-    CURLFORM_STREAM,    stream, CURLFORM_CONTENTSLENGTH, len,
+    CURLFORM_PTRNAME,   name,   CURLFORM_NAMELENGTH,   (long)name_len,
+    CURLFORM_STREAM,    stream, LCURL_FORM_CONTENTLEN, (LCURL_LEN_TYPE)len,
     CURLFORM_ARRAY,     forms,
     CURLFORM_END
   );
@@ -383,7 +415,7 @@ static int lcurl_hpost_add_files(lua_State *L){
   }
 
   code = curl_formadd(&p->post, &p->last, 
-    CURLFORM_PTRNAME, name, CURLFORM_NAMELENGTH,   name_len,
+    CURLFORM_PTRNAME, name, CURLFORM_NAMELENGTH,   (long)name_len,
     CURLFORM_ARRAY,   forms,
     CURLFORM_END);
 
diff --git a/src/lcopteasy.h b/src/lcopteasy.h
index 4da9095..4b4bc3e 100644
--- a/src/lcopteasy.h
+++ b/src/lcopteasy.h
@@ -4,7 +4,7 @@
 #undef TCP_KEEPALIVE
 
 /* Before version 7.17.0, strings were not copied.
-   Instead the user was forced keep them available 
+   Instead the user was forced keep them available
    until libcurl no longer needed them.
 */
 
@@ -232,14 +232,13 @@ OPT_ENTRY( ssl_cipher_list,         SSL_CIPHER_LIST,         STR, LCURL_STORE_ST
 OPT_ENTRY( ssl_enable_alpn,         SSL_ENABLE_ALPN,         LNG, 0,                  1 )
 OPT_ENTRY( ssl_enable_npn,          SSL_ENABLE_NPN,          LNG, 0,                  1 )
 #endif
-#if LCURL_CURL_VER_GE(7,25,0)                                
+#if LCURL_CURL_VER_GE(7,25,0)
 OPT_ENTRY( ssl_options,             SSL_OPTIONS,             LNG, 0,                  LCURL_DEFAULT_VALUE )
 #endif
 OPT_ENTRY( ssl_sessionid_cache,     SSL_SESSIONID_CACHE,     LNG, 0,                  1 )
 OPT_ENTRY( ssl_verifyhost,          SSL_VERIFYHOST,          LNG, 0,                  2 )
 OPT_ENTRY( ssl_verifypeer,          SSL_VERIFYPEER,          LNG, 0,                  1 )
 
-
 FLG_ENTRY( SSLVERSION_DEFAULT )
 FLG_ENTRY( SSLVERSION_TLSv1   )
 FLG_ENTRY( SSLVERSION_SSLv2   )
@@ -260,6 +259,12 @@ FLG_ENTRY( HTTP_VERSION_1_1   )
 #if LCURL_CURL_VER_GE(7,33,0)
 FLG_ENTRY( HTTP_VERSION_2_0   )
 #endif
+#if LCURL_CURL_VER_GE(7,43,0)
+FLG_ENTRY( HTTP_VERSION_2     )
+#endif
+#if LCURL_CURL_VER_GE(7,47,0)
+FLG_ENTRY( HTTP_VERSION_2TLS  )
+#endif
 
 FLG_ENTRY( READFUNC_PAUSE     ) /*7.18.0*/
 FLG_ENTRY( WRITEFUNC_PAUSE    ) /*7.18.0*/
@@ -275,6 +280,38 @@ FLG_ENTRY( CSELECT_ERR        ) /*7.16.3*/
 FLG_ENTRY( CSELECT_IN         ) /*7.16.3*/
 FLG_ENTRY( CSELECT_OUT        ) /*7.16.3*/
 
+FLG_ENTRY( IPRESOLVE_WHATEVER ) /*7.10.8*/
+FLG_ENTRY( IPRESOLVE_V4       ) /*7.10.8*/
+FLG_ENTRY( IPRESOLVE_V6       ) /*7.10.8*/
+
+#if LCURL_CURL_VER_GE(7,39,0)
+OPT_ENTRY( pinnedpublickey,    PINNEDPUBLICKEY,    STR, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+#if LCURL_CURL_VER_GE(7,40,0)
+OPT_ENTRY( unix_socket_path,   UNIX_SOCKET_PATH,   STR, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+#if LCURL_CURL_VER_GE(7,41,0)
+OPT_ENTRY( ssl_verifystatus,   SSL_VERIFYSTATUS,   LNG, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+#if LCURL_CURL_VER_GE(7,42,0)
+OPT_ENTRY( ssl_falsestart,     SSL_FALSESTART,     LNG, 0,                  LCURL_DEFAULT_VALUE )
+OPT_ENTRY( path_as_is,         PATH_AS_IS,         LNG, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+#if LCURL_CURL_VER_GE(7,43,0)
+OPT_ENTRY( proxy_service_name, PROXY_SERVICE_NAME, STR, 0,                  LCURL_DEFAULT_VALUE )
+OPT_ENTRY( service_name,       SERVICE_NAME,       STR, 0,                  LCURL_DEFAULT_VALUE )
+OPT_ENTRY( pipewait,           PIPEWAIT,           LNG, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+#if LCURL_CURL_VER_GE(7,45,0)
+OPT_ENTRY( default_protocol,   DEFAULT_PROTOCOL,   STR, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+#if LCURL_CURL_VER_GE(7,46,0)
+OPT_ENTRY( stream_weight,      STREAM_WEIGHT,      LNG, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+#if LCURL_CURL_VER_GE(7,48,0)
+OPT_ENTRY( tftp_no_options,    TFTP_NO_OPTIONS,    LNG, 0,                  LCURL_DEFAULT_VALUE )
+#endif
+
 #ifdef OPT_ENTRY_IS_NULL
 #  undef OPT_ENTRY
 #endif
diff --git a/test/test_easy.lua b/test/test_easy.lua
index d11b6e2..56ceeab 100644
--- a/test/test_easy.lua
+++ b/test/test_easy.lua
@@ -923,7 +923,7 @@ local _ENV = TEST_CASE'setopt_user_data'     if ENABLE then
 
 local c
 
-function setup()
+function teardown()
   if c then c:close() end
   c = nil
 end