diff --git a/CMakeLists.txt b/CMakeLists.txt
index db1d891fe..ed73c824c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -239,7 +239,8 @@ if(ICONV_FOUND)
 endif()
 
 # Check for CURL
-pkg_check_modules(LIBCURL REQUIRED libcurl)
+# NOTE: keep version in sync with tools/check_curl_symbols.py
+pkg_check_modules(LIBCURL REQUIRED libcurl>=7.47.0)
 include_directories(${LIBCURL_INCLUDE_DIRS})
 list(APPEND EXTRA_LIBS ${LIBCURL_LDFLAGS})
 
diff --git a/src/core/core-url.c b/src/core/core-url.c
index caf3a9202..681b65eb5 100644
--- a/src/core/core-url.c
+++ b/src/core/core-url.c
@@ -54,18 +54,12 @@ char *url_type_string[] = { "string", "long", "long long", "mask", "list" };
 
 struct t_url_constant url_proxy_types[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070A00 /* 7.10.0 */
     URL_DEF_CONST(PROXY, HTTP),
     URL_DEF_CONST(PROXY, SOCKS4),
     URL_DEF_CONST(PROXY, SOCKS5),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071200 /* 7.18.0 */
     URL_DEF_CONST(PROXY, SOCKS4A),
     URL_DEF_CONST(PROXY, SOCKS5_HOSTNAME),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071304 /* 7.19.4 */
     URL_DEF_CONST(PROXY, HTTP_1_0),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073400 /* 7.52.0 */
     URL_DEF_CONST(PROXY, HTTPS),
 #endif
@@ -74,7 +68,6 @@ struct t_url_constant url_proxy_types[] =
 
 struct t_url_constant url_protocols[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071304 /* 7.19.4 */
     URL_DEF_CONST(PROTO, HTTP),
     URL_DEF_CONST(PROTO, HTTPS),
     URL_DEF_CONST(PROTO, FTP),
@@ -88,8 +81,6 @@ struct t_url_constant url_protocols[] =
     URL_DEF_CONST(PROTO, FILE),
     URL_DEF_CONST(PROTO, TFTP),
     URL_DEF_CONST(PROTO, ALL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071400 /* 7.20.0 */
     URL_DEF_CONST(PROTO, IMAP),
     URL_DEF_CONST(PROTO, IMAPS),
     URL_DEF_CONST(PROTO, POP3),
@@ -97,22 +88,15 @@ struct t_url_constant url_protocols[] =
     URL_DEF_CONST(PROTO, SMTP),
     URL_DEF_CONST(PROTO, SMTPS),
     URL_DEF_CONST(PROTO, RTSP),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071500 /* 7.21.0 */
     URL_DEF_CONST(PROTO, RTMP),
     URL_DEF_CONST(PROTO, RTMPT),
     URL_DEF_CONST(PROTO, RTMPE),
     URL_DEF_CONST(PROTO, RTMPTE),
     URL_DEF_CONST(PROTO, RTMPS),
     URL_DEF_CONST(PROTO, RTMPTS),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071502 /* 7.21.2 */
     URL_DEF_CONST(PROTO, GOPHER),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072800 /* 7.40.0 */
     URL_DEF_CONST(PROTO, SMB),
     URL_DEF_CONST(PROTO, SMBS),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x074700 /* 7.71.0 */
     URL_DEF_CONST(PROTO, MQTT),
 #endif
@@ -124,39 +108,26 @@ struct t_url_constant url_protocols[] =
 
 struct t_url_constant url_netrc[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070908 /* 7.9.8 */
     URL_DEF_CONST(_NETRC, IGNORED),
     URL_DEF_CONST(_NETRC, OPTIONAL),
     URL_DEF_CONST(_NETRC, REQUIRED),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_auth[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070A06 /* 7.10.6 */
     URL_DEF_CONST(AUTH, NONE),
     URL_DEF_CONST(AUTH, BASIC),
     URL_DEF_CONST(AUTH, DIGEST),
     URL_DEF_CONST(AUTH, NTLM),
     URL_DEF_CONST(AUTH, ANY),
     URL_DEF_CONST(AUTH, ANYSAFE),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071303 /* 7.19.3 */
     URL_DEF_CONST(AUTH, DIGEST_IE),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071503 /* 7.21.3 */
     URL_DEF_CONST(AUTH, ONLY),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071600 && LIBCURL_VERSION_NUM < 0x080800 /* 7.22.0 < 8.8.0 */
+#if LIBCURL_VERSION_NUM < 0x080800 /* < 8.8.0 */
     URL_DEF_CONST(AUTH, NTLM_WB),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x070A06 && LIBCURL_VERSION_NUM < 0x072600 /* 7.10.6 < 7.38.0 */
-    URL_DEF_CONST(AUTH, GSSNEGOTIATE),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072600 /* 7.38.0 */
     URL_DEF_CONST(AUTH, NEGOTIATE),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073700 /* 7.55.0 */
     URL_DEF_CONST(AUTH, GSSAPI),
 #endif
@@ -171,38 +142,26 @@ struct t_url_constant url_auth[] =
 
 struct t_url_constant url_authtype[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071504 /* 7.21.4 */
     URL_DEF_CONST(_TLSAUTH, NONE),
     URL_DEF_CONST(_TLSAUTH, SRP),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_postredir[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071301 /* 7.19.1 */
     URL_DEF_CONST(_REDIR, POST_301),
     URL_DEF_CONST(_REDIR, POST_302),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_http_version[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070901 /* 7.9.1 */
     URL_DEF_CONST(_HTTP_VERSION, NONE),
     URL_DEF_CONST(_HTTP_VERSION, 1_0),
     URL_DEF_CONST(_HTTP_VERSION, 1_1),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072100 /* 7.33.0 */
     URL_DEF_CONST(_HTTP_VERSION, 2_0),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072B00 /* 7.43.0 */
     URL_DEF_CONST(_HTTP_VERSION, 2),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072F00 /* 7.47.0 */
     URL_DEF_CONST(_HTTP_VERSION, 2TLS),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073100 /* 7.49.0 */
     URL_DEF_CONST(_HTTP_VERSION, 2_PRIOR_KNOWLEDGE),
 #endif
@@ -214,39 +173,30 @@ struct t_url_constant url_http_version[] =
 
 struct t_url_constant url_ftp_auth[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070C02 /* 7.12.2 */
     URL_DEF_CONST(FTPAUTH, DEFAULT),
     URL_DEF_CONST(FTPAUTH, SSL),
     URL_DEF_CONST(FTPAUTH, TLS),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_ftp_ssl_ccc[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071002 /* 7.16.2 */
     URL_DEF_CONST(FTPSSL, CCC_NONE),
     URL_DEF_CONST(FTPSSL, CCC_ACTIVE),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071001 /* 7.16.1 */
     URL_DEF_CONST(FTPSSL, CCC_PASSIVE),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_ftp_file_method[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070F03 /* 7.15.3 */
     URL_DEF_CONST(FTPMETHOD, MULTICWD),
     URL_DEF_CONST(FTPMETHOD, NOCWD),
     URL_DEF_CONST(FTPMETHOD, SINGLECWD),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_rtsp_request[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071400 /* 7.20.0 */
     URL_DEF_CONST(_RTSPREQ, OPTIONS),
     URL_DEF_CONST(_RTSPREQ, DESCRIBE),
     URL_DEF_CONST(_RTSPREQ, ANNOUNCE),
@@ -258,55 +208,44 @@ struct t_url_constant url_rtsp_request[] =
     URL_DEF_CONST(_RTSPREQ, SET_PARAMETER),
     URL_DEF_CONST(_RTSPREQ, RECORD),
     URL_DEF_CONST(_RTSPREQ, RECEIVE),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_time_condition[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070907 /* 7.9.7 */
     URL_DEF_CONST(_TIMECOND, NONE),
     URL_DEF_CONST(_TIMECOND, IFMODSINCE),
     URL_DEF_CONST(_TIMECOND, IFUNMODSINCE),
     URL_DEF_CONST(_TIMECOND, LASTMOD),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_ip_resolve[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070A08 /* 7.10.8 */
     URL_DEF_CONST(_IPRESOLVE, WHATEVER),
     URL_DEF_CONST(_IPRESOLVE, V4),
     URL_DEF_CONST(_IPRESOLVE, V6),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_use_ssl[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071100 /* 7.17.0 */
     URL_DEF_CONST(USESSL, NONE),
     URL_DEF_CONST(USESSL, TRY),
     URL_DEF_CONST(USESSL, CONTROL),
     URL_DEF_CONST(USESSL, ALL),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_ssl_version[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x070902 /* 7.9.2 */
     URL_DEF_CONST(_SSLVERSION, DEFAULT),
     URL_DEF_CONST(_SSLVERSION, TLSv1),
     URL_DEF_CONST(_SSLVERSION, SSLv2),
     URL_DEF_CONST(_SSLVERSION, SSLv3),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072200 /* 7.34.0 */
     URL_DEF_CONST(_SSLVERSION, TLSv1_0),
     URL_DEF_CONST(_SSLVERSION, TLSv1_1),
     URL_DEF_CONST(_SSLVERSION, TLSv1_2),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073400 /* 7.52.0 */
     URL_DEF_CONST(_SSLVERSION, TLSv1_3),
 #endif
@@ -323,12 +262,8 @@ struct t_url_constant url_ssl_version[] =
 
 struct t_url_constant url_ssl_options[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071900 /* 7.25.0 */
     URL_DEF_CONST(SSLOPT, ALLOW_BEAST),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072C00 /* 7.44.0 */
     URL_DEF_CONST(SSLOPT, NO_REVOKE),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073800 /* 7.56.0 */
     URL_DEF_CONST(SSLSET, NO_BACKENDS),
     URL_DEF_CONST(SSLSET, OK),
@@ -352,17 +287,14 @@ struct t_url_constant url_ssl_options[] =
 
 struct t_url_constant url_gssapi_delegation[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071600 /* 7.22.0 */
     URL_DEF_CONST(GSSAPI_DELEGATION, NONE),
     URL_DEF_CONST(GSSAPI_DELEGATION, POLICY_FLAG),
     URL_DEF_CONST(GSSAPI_DELEGATION, FLAG),
-#endif
     { NULL, 0 },
 };
 
 struct t_url_constant url_ssh_auth[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x071001 /* 7.16.1 */
     URL_DEF_CONST(SSH_AUTH, NONE),
     URL_DEF_CONST(SSH_AUTH, PUBLICKEY),
     URL_DEF_CONST(SSH_AUTH, PASSWORD),
@@ -370,10 +302,7 @@ struct t_url_constant url_ssh_auth[] =
     URL_DEF_CONST(SSH_AUTH, KEYBOARD),
     URL_DEF_CONST(SSH_AUTH, DEFAULT),
     URL_DEF_CONST(SSH_AUTH, ANY),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071C00 /* 7.28.0 */
     URL_DEF_CONST(SSH_AUTH, AGENT),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073A00 /* 7.58.0 */
     URL_DEF_CONST(SSH_AUTH, GSSAPI),
 #endif
@@ -382,10 +311,8 @@ struct t_url_constant url_ssh_auth[] =
 
 struct t_url_constant url_header[] =
 {
-#if LIBCURL_VERSION_NUM >= 0x072500 /* 7.37.0 */
     URL_DEF_CONST(HEADER, UNIFIED),
     URL_DEF_CONST(HEADER, SEPARATE),
-#endif
     { NULL, 0 },
 };
 
@@ -426,24 +353,16 @@ struct t_url_option url_options[] =
     /*
      * behavior options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(VERBOSE, LONG, NULL),
     URL_DEF_OPTION(HEADER, LONG, NULL),
     URL_DEF_OPTION(NOPROGRESS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A00 /* 7.10.0 */
     URL_DEF_OPTION(NOSIGNAL, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071500 /* 7.21.0 */
     URL_DEF_OPTION(WILDCARDMATCH, LONG, NULL),
-#endif
 
     /*
      * error options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(FAILONERROR, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073300 /* 7.51.0 */
     URL_DEF_OPTION(KEEP_SENDING_ON_ERROR, LONG, NULL),
 #endif
@@ -451,67 +370,41 @@ struct t_url_option url_options[] =
     /*
      * network options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(PROXY, STRING, NULL),
     URL_DEF_OPTION(PROXYPORT, LONG, NULL),
     URL_DEF_OPTION(PORT, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073400 /* 7.52.0 */
     URL_DEF_OPTION(PRE_PROXY, STRING, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x070300 /* 7.3.0 */
     URL_DEF_OPTION(HTTPPROXYTUNNEL, LONG, NULL),
     URL_DEF_OPTION(INTERFACE, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070903 /* 7.9.3 */
     URL_DEF_OPTION(DNS_CACHE_TIMEOUT, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A00 /* 7.10.0 */
     URL_DEF_OPTION(PROXYTYPE, LONG, url_proxy_types),
     URL_DEF_OPTION(BUFFERSIZE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070B02 /* 7.11.2 */
     URL_DEF_OPTION(TCP_NODELAY, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070F02 /* 7.15.2 */
     URL_DEF_OPTION(LOCALPORT, LONG, NULL),
     URL_DEF_OPTION(LOCALPORTRANGE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071300 /* 7.19.0 */
     URL_DEF_OPTION(ADDRESS_SCOPE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071304 && LIBCURL_VERSION_NUM < 0x075500 /* 7.19.4 < 7.85.0 */
+#if LIBCURL_VERSION_NUM < 0x075500 /* < 7.85.0 */
     URL_DEF_OPTION(PROTOCOLS, MASK, url_protocols),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x071304 && LIBCURL_VERSION_NUM < 0x075500 /* 7.19.4 < 7.85.0 */
+#if LIBCURL_VERSION_NUM < 0x075500 /* < 7.85.0 */
     URL_DEF_OPTION(REDIR_PROTOCOLS, MASK, url_protocols),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x071304 /* 7.19.4 */
     URL_DEF_OPTION(NOPROXY, STRING, NULL),
     URL_DEF_OPTION(SOCKS5_GSSAPI_NEC, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071900 /* 7.25.0 */
     URL_DEF_OPTION(TCP_KEEPALIVE, LONG, NULL),
     URL_DEF_OPTION(TCP_KEEPIDLE, LONG, NULL),
     URL_DEF_OPTION(TCP_KEEPINTVL, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072800 /* 7.40.0 */
     URL_DEF_OPTION(UNIX_SOCKET_PATH, STRING, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073500 /* 7.53.0 */
     URL_DEF_OPTION(ABSTRACT_UNIX_SOCKET, STRING, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x072A00 /* 7.42.0 */
     URL_DEF_OPTION(PATH_AS_IS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072B00 /* 7.43.0 */
     URL_DEF_OPTION(PROXY_SERVICE_NAME, STRING, NULL),
     URL_DEF_OPTION(SERVICE_NAME, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072D00 /* 7.45.0 */
     URL_DEF_OPTION(DEFAULT_PROTOCOL, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071304 && LIBCURL_VERSION_NUM < 0x073100 /* 7.19.4 < 7.49.0 */
+#if LIBCURL_VERSION_NUM < 0x073100 /* < 7.49.0 */
     URL_DEF_OPTION(SOCKS5_GSSAPI_SERVICE, STRING, NULL),
 #endif
 #if LIBCURL_VERSION_NUM >= 0x073100 /* 7.49.0 */
@@ -536,44 +429,26 @@ struct t_url_option url_options[] =
     /*
      * names and password options (authentication)
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(NETRC, LONG, url_netrc),
     URL_DEF_OPTION(USERPWD, STRING, NULL),
     URL_DEF_OPTION(PROXYUSERPWD, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A06 /* 7.10.6 */
     URL_DEF_OPTION(HTTPAUTH, MASK, url_auth),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A07 /* 7.10.7 */
     URL_DEF_OPTION(PROXYAUTH, MASK, url_auth),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070B00 /* 7.11.0 */
     URL_DEF_OPTION(NETRC_FILE, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071301 /* 7.19.1 */
     URL_DEF_OPTION(USERNAME, STRING, NULL),
     URL_DEF_OPTION(PASSWORD, STRING, NULL),
     URL_DEF_OPTION(PROXYUSERNAME, STRING, NULL),
     URL_DEF_OPTION(PROXYPASSWORD, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071504 /* 7.21.4 */
     URL_DEF_OPTION(TLSAUTH_TYPE, MASK, url_authtype),
     URL_DEF_OPTION(TLSAUTH_USERNAME, STRING, NULL),
     URL_DEF_OPTION(TLSAUTH_PASSWORD, STRING, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x074200 /* 7.66.0 */
     URL_DEF_OPTION(SASL_AUTHZID, STRING, NULL),
 #endif
 
-#if LIBCURL_VERSION_NUM >= 0x071F00 /* 7.31.0 */
     URL_DEF_OPTION(SASL_IR, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072100 /* 7.33.0 */
     URL_DEF_OPTION(XOAUTH2_BEARER, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072200 /* 7.34.0 */
     URL_DEF_OPTION(LOGIN_OPTIONS, STRING, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073D00 /* 7.61.0 */
     URL_DEF_OPTION(DISALLOW_USERNAME_IN_URL, LONG, NULL),
 #endif
@@ -581,7 +456,6 @@ struct t_url_option url_options[] =
     /*
      * HTTP options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(AUTOREFERER, LONG, NULL),
     URL_DEF_OPTION(FOLLOWLOCATION, LONG, NULL),
     URL_DEF_OPTION(POST, LONG, NULL),
@@ -591,70 +465,33 @@ struct t_url_option url_options[] =
     URL_DEF_OPTION(HTTPHEADER, LIST, NULL),
     URL_DEF_OPTION(COOKIE, STRING, NULL),
     URL_DEF_OPTION(COOKIEFILE, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070200 /* 7.2.0 */
     URL_DEF_OPTION(POSTFIELDSIZE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070500 /* 7.5.0 */
     URL_DEF_OPTION(MAXREDIRS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070801 /* 7.8.1 */
     URL_DEF_OPTION(HTTPGET, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070900 /* 7.9.0 */
     URL_DEF_OPTION(COOKIEJAR, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070901 /* 7.9.1 */
     URL_DEF_OPTION(HTTP_VERSION, LONG, url_http_version),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070907 /* 7.9.7 */
     URL_DEF_OPTION(COOKIESESSION, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A03 /* 7.10.3 */
     URL_DEF_OPTION(HTTP200ALIASES, LIST, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A04 /* 7.10.4 */
     URL_DEF_OPTION(UNRESTRICTED_AUTH, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070B01 /* 7.11.1 */
     URL_DEF_OPTION(POSTFIELDSIZE_LARGE, LONGLONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070E01 /* 7.14.1 */
     URL_DEF_OPTION(COOKIELIST, STRING, NULL),
     URL_DEF_OPTION(IGNORE_CONTENT_LENGTH, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071506 /* 7.21.6 */
     URL_DEF_OPTION(ACCEPT_ENCODING, STRING, NULL),
     URL_DEF_OPTION(TRANSFER_ENCODING, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071002 /* 7.16.2 */
     URL_DEF_OPTION(HTTP_CONTENT_DECODING, LONG, NULL),
     URL_DEF_OPTION(HTTP_TRANSFER_DECODING, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071101 /* 7.17.1 */
     URL_DEF_OPTION(COPYPOSTFIELDS, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071301 /* 7.19.1 */
     URL_DEF_OPTION(POSTREDIR, MASK, url_postredir),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072400 /* 7.36.0 */
     URL_DEF_OPTION(EXPECT_100_TIMEOUT_MS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072500 /* 7.37.0 */
     URL_DEF_OPTION(HEADEROPT, MASK, url_header),
     URL_DEF_OPTION(PROXYHEADER, LIST, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072B00 /* 7.43.0 */
     URL_DEF_OPTION(PIPEWAIT, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072E00 /* 7.46.0 */
     URL_DEF_OPTION(STREAM_WEIGHT, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073700 /* 7.55.0 */
     URL_DEF_OPTION(REQUEST_TARGET, STRING, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x070100 && LIBCURL_VERSION_NUM < 0x073800 /* 7.1.0 < 7.56.0 */
-        URL_DEF_OPTION(HTTPPOST, LIST, NULL),
+#if LIBCURL_VERSION_NUM < 0x073800 /* < 7.56.0 */
+    URL_DEF_OPTION(HTTPPOST, LIST, NULL),
 #endif
 #if LIBCURL_VERSION_NUM >= 0x074000 /* 7.64.0 */
     URL_DEF_OPTION(HTTP09_ALLOWED, LONG, NULL),
@@ -667,13 +504,9 @@ struct t_url_option url_options[] =
     /*
      * SMTP options
      */
-#if LIBCURL_VERSION_NUM >= 0x071400 /* 7.20.0 */
     URL_DEF_OPTION(MAIL_FROM, STRING, NULL),
     URL_DEF_OPTION(MAIL_RCPT, LIST, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071900 /* 7.25.0 */
     URL_DEF_OPTION(MAIL_AUTH, STRING, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x074500 && LIBCURL_VERSION_NUM < 0x080200 /* 7.69.0 < 8.2.0 */
     URL_DEF_OPTION(MAIL_RCPT_ALLLOWFAILS, LONG, NULL),
 #endif
@@ -684,9 +517,7 @@ struct t_url_option url_options[] =
     /*
      * TFTP options
      */
-#if LIBCURL_VERSION_NUM >= 0x071304 /* 7.19.4 */
     URL_DEF_OPTION(TFTP_BLKSIZE, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073000 /* 7.48.0 */
     URL_DEF_OPTION(TFTP_NO_OPTIONS, LONG, NULL),
 #endif
@@ -694,63 +525,35 @@ struct t_url_option url_options[] =
     /*
      * FTP options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(FTPPORT, STRING, NULL),
     URL_DEF_OPTION(QUOTE, LIST, NULL),
     URL_DEF_OPTION(POSTQUOTE, LIST, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070902 /* 7.9.2 */
     URL_DEF_OPTION(FTP_USE_EPSV, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070905 /* 7.9.5 */
     URL_DEF_OPTION(PREQUOTE, LIST, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A05 /* 7.10.5 */
     URL_DEF_OPTION(FTP_USE_EPRT, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A07 /* 7.10.7 */
     URL_DEF_OPTION(FTP_CREATE_MISSING_DIRS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A08 && LIBCURL_VERSION_NUM < 0x075500 /* 7.10.8 < 7.85.0 */
+#if LIBCURL_VERSION_NUM < 0x075500 /* < 7.85.0 */
     URL_DEF_OPTION(FTP_RESPONSE_TIMEOUT, LONG, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x070C02 /* 7.12.2 */
     URL_DEF_OPTION(FTPSSLAUTH, LONG, url_ftp_auth),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070D00 /* 7.13.0 */
     URL_DEF_OPTION(FTP_ACCOUNT, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070F00 /* 7.15.0 */
     URL_DEF_OPTION(FTP_SKIP_PASV_IP, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070F01 /* 7.15.1 */
     URL_DEF_OPTION(FTP_FILEMETHOD, LONG, url_ftp_file_method),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070F05 /* 7.15.5 */
     URL_DEF_OPTION(FTP_ALTERNATIVE_TO_USER, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071001 /* 7.16.1 */
     URL_DEF_OPTION(FTP_SSL_CCC, LONG, url_ftp_ssl_ccc),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071100 /* 7.17.0 */
     URL_DEF_OPTION(DIRLISTONLY, LONG, NULL),
     URL_DEF_OPTION(APPEND, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071400 /* 7.20.0 */
     URL_DEF_OPTION(FTP_USE_PRET, LONG, NULL),
-#endif
 
     /*
      * RTSP options
      */
-#if LIBCURL_VERSION_NUM >= 0x071400 /* 7.20.0 */
     URL_DEF_OPTION(RTSP_REQUEST, LONG, url_rtsp_request),
     URL_DEF_OPTION(RTSP_SESSION_ID, STRING, NULL),
     URL_DEF_OPTION(RTSP_STREAM_URI, STRING, NULL),
     URL_DEF_OPTION(RTSP_TRANSPORT, STRING, NULL),
     URL_DEF_OPTION(RTSP_CLIENT_CSEQ, LONG, NULL),
     URL_DEF_OPTION(RTSP_SERVER_CSEQ, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x074B00 /* 7.75.0 */
     URL_DEF_OPTION(AWS_SIGV4, STRING, NULL),
 #endif
@@ -758,7 +561,6 @@ struct t_url_option url_options[] =
     /*
      * protocol options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(CRLF, LONG, NULL),
     URL_DEF_OPTION(RANGE, STRING, NULL),
     URL_DEF_OPTION(RESUME_FROM, LONG, NULL),
@@ -768,24 +570,13 @@ struct t_url_option url_options[] =
     URL_DEF_OPTION(UPLOAD, LONG, NULL),
     URL_DEF_OPTION(TIMECONDITION, LONG, url_time_condition),
     URL_DEF_OPTION(TIMEVALUE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070101 /* 7.1.1 */
     URL_DEF_OPTION(TRANSFERTEXT, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070500 /* 7.5.0 */
     URL_DEF_OPTION(FILETIME, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A08 /* 7.10.8 */
     URL_DEF_OPTION(MAXFILESIZE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071200 /* 7.18.0 */
     URL_DEF_OPTION(PROXY_TRANSFER_MODE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070B00 /* 7.11.0 */
     URL_DEF_OPTION(RESUME_FROM_LARGE, LONGLONG, NULL),
     URL_DEF_OPTION(INFILESIZE_LARGE, LONGLONG, NULL),
     URL_DEF_OPTION(MAXFILESIZE_LARGE, LONGLONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073B00 /* 7.59.0 */
     URL_DEF_OPTION(TIMEVALUE_LARGE, LONGLONG, NULL),
 #endif
@@ -799,51 +590,29 @@ struct t_url_option url_options[] =
     /*
      * connection options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(TIMEOUT, LONG, NULL),
     URL_DEF_OPTION(LOW_SPEED_LIMIT, LONG, NULL),
     URL_DEF_OPTION(LOW_SPEED_TIME, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070700 /* 7.7.0 */
     URL_DEF_OPTION(FRESH_CONNECT, LONG, NULL),
     URL_DEF_OPTION(FORBID_REUSE, LONG, NULL),
     URL_DEF_OPTION(CONNECTTIMEOUT, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070A08 /* 7.10.8 */
     URL_DEF_OPTION(IPRESOLVE, LONG, url_ip_resolve),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070F02 /* 7.15.2 */
     URL_DEF_OPTION(CONNECT_ONLY, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070F05 /* 7.15.5 */
     URL_DEF_OPTION(MAX_SEND_SPEED_LARGE, LONGLONG, NULL),
     URL_DEF_OPTION(MAX_RECV_SPEED_LARGE, LONGLONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071002 /* 7.16.2 */
     URL_DEF_OPTION(TIMEOUT_MS, LONG, NULL),
     URL_DEF_OPTION(CONNECTTIMEOUT_MS, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x074100 /* 7.65.0 */
     URL_DEF_OPTION(MAXAGE_CONN, LONG, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x070700 /* 7.7.0 */
     URL_DEF_OPTION(MAXCONNECTS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071100 /* 7.17.0 */
     URL_DEF_OPTION(USE_SSL, LONG, url_use_ssl),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071503 /* 7.21.3 */
     URL_DEF_OPTION(RESOLVE, LIST, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071800 /* 7.24.0 */
     URL_DEF_OPTION(DNS_SERVERS, STRING, NULL),
     URL_DEF_OPTION(ACCEPTTIMEOUT_MS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072100 /* 7.33.0 */
     URL_DEF_OPTION(DNS_INTERFACE, STRING, NULL),
     URL_DEF_OPTION(DNS_LOCAL_IP4, STRING, NULL),
     URL_DEF_OPTION(DNS_LOCAL_IP6, STRING, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073100 /* 7.49.0 */
     URL_DEF_OPTION(CONNECT_TO, LIST, NULL),
 #endif
@@ -863,73 +632,39 @@ struct t_url_option url_options[] =
     /*
      * SSL and security options
      */
-#if LIBCURL_VERSION_NUM >= 0x070100 /* 7.1.0 */
     URL_DEF_OPTION(SSLCERT, STRING, NULL),
     URL_DEF_OPTION(SSLVERSION, LONG, url_ssl_version),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070402 /* 7.4.2 */
     URL_DEF_OPTION(SSL_VERIFYPEER, LONG, NULL),
     URL_DEF_OPTION(CAINFO, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070700 && LIBCURL_VERSION_NUM < 0x075400 /* 7.7.0 < 7.84.0 */
+#if LIBCURL_VERSION_NUM < 0x075400 /* < 7.84.0 */
     URL_DEF_OPTION(RANDOM_FILE, STRING, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x070700 && LIBCURL_VERSION_NUM < 0x075400 /* 7.7.0 < 7.84.0 */
+#if LIBCURL_VERSION_NUM < 0x075400 /* < 7.84.0 */
     URL_DEF_OPTION(EGDSOCKET, STRING, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x070801 /* 7.8.1 */
     URL_DEF_OPTION(SSL_VERIFYHOST, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070900 /* 7.9.0 */
     URL_DEF_OPTION(SSL_CIPHER_LIST, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070903 /* 7.9.3 */
     URL_DEF_OPTION(SSLCERTTYPE, STRING, NULL),
     URL_DEF_OPTION(SSLKEY, STRING, NULL),
     URL_DEF_OPTION(SSLKEYTYPE, STRING, NULL),
     URL_DEF_OPTION(SSLENGINE, STRING, NULL),
     URL_DEF_OPTION(SSLENGINE_DEFAULT, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x070908 /* 7.9.8 */
     URL_DEF_OPTION(CAPATH, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071000 /* 7.16.0 */
     URL_DEF_OPTION(SSL_SESSIONID_CACHE, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071004 /* 7.16.4 */
     URL_DEF_OPTION(KRBLEVEL, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071100 /* 7.17.0 */
     URL_DEF_OPTION(KEYPASSWD, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071300 /* 7.19.0 */
     URL_DEF_OPTION(ISSUERCERT, STRING, NULL),
     URL_DEF_OPTION(CRLFILE, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071301 /* 7.19.1 */
     URL_DEF_OPTION(CERTINFO, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071600 /* 7.22.0 */
     URL_DEF_OPTION(GSSAPI_DELEGATION, LONG, url_gssapi_delegation),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071900 /* 7.25.0 */
     URL_DEF_OPTION(SSL_OPTIONS, LONG, url_ssl_options),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072400 /* 7.36.0 */
     URL_DEF_OPTION(SSL_ENABLE_ALPN, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072400 && LIBCURL_VERSION_NUM < 0x075600 /* 7.36.0 < 7.86.0 */
+#if LIBCURL_VERSION_NUM < 0x075600 /* < 7.86.0 */
     URL_DEF_OPTION(SSL_ENABLE_NPN, LONG, NULL),
 #endif
-#if LIBCURL_VERSION_NUM >= 0x072700 /* 7.39.0 */
     URL_DEF_OPTION(PINNEDPUBLICKEY, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072900 /* 7.41.0 */
     URL_DEF_OPTION(SSL_VERIFYSTATUS, LONG, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x072A00 /* 7.42.0 */
     URL_DEF_OPTION(SSL_FALSESTART, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073400 /* 7.52.0 */
     URL_DEF_OPTION(PROXY_CAINFO, STRING, NULL),
     URL_DEF_OPTION(PROXY_CAPATH, STRING, NULL),
@@ -971,17 +706,11 @@ struct t_url_option url_options[] =
     /*
      * SSH options
      */
-#if LIBCURL_VERSION_NUM >= 0x071001 /* 7.16.1 */
     URL_DEF_OPTION(SSH_AUTH_TYPES, MASK, url_gssapi_delegation),
     URL_DEF_OPTION(SSH_PUBLIC_KEYFILE, STRING, NULL),
     URL_DEF_OPTION(SSH_PRIVATE_KEYFILE, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071101 /* 7.17.1 */
     URL_DEF_OPTION(SSH_HOST_PUBLIC_KEY_MD5, STRING, NULL),
-#endif
-#if LIBCURL_VERSION_NUM >= 0x071306 /* 7.19.6 */
     URL_DEF_OPTION(SSH_KNOWNHOSTS, STRING, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x073800 /* 7.56.0 */
     URL_DEF_OPTION(SSH_COMPRESSION, LONG, NULL),
 #endif
@@ -992,9 +721,7 @@ struct t_url_option url_options[] =
     /*
      * telnet options
      */
-#if LIBCURL_VERSION_NUM >= 0x070700 /* 7.7 */
     URL_DEF_OPTION(TELNETOPTIONS, LIST, NULL),
-#endif
 
     /*
      * websocket options
@@ -1006,10 +733,8 @@ struct t_url_option url_options[] =
     /*
      * other options
      */
-#if LIBCURL_VERSION_NUM >= 0x071004 /* 7.16.4 */
     URL_DEF_OPTION(NEW_FILE_PERMS, LONG, NULL),
     URL_DEF_OPTION(NEW_DIRECTORY_PERMS, LONG, NULL),
-#endif
 #if LIBCURL_VERSION_NUM >= 0x075700 /* 7.87.0 */
     URL_DEF_OPTION(QUICK_EXIT, LONG, NULL),
 #endif
@@ -1272,23 +997,11 @@ weeurl_set_proxy (CURL *curl, struct t_proxy *proxy)
             curl_easy_setopt (curl, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
             break;
         case PROXY_TYPE_SOCKS4:
-#if LIBCURL_VERSION_NUM < 0x070A00 /* 7.10.0 */
-            /* proxy socks4 not supported in Curl < 7.10 */
-            return;
-#endif /* LIBCURL_VERSION_NUM < 0x070A00 */
             curl_easy_setopt (curl, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4);
             break;
         case PROXY_TYPE_SOCKS5:
-#if LIBCURL_VERSION_NUM < 0x070A00 /* 7.10.0 */
-            /* proxy socks5 not supported in Curl < 7.10 */
-            return;
-#endif /* LIBCURL_VERSION_NUM < 0x070A00 */
-#if LIBCURL_VERSION_NUM >= 0x071200 /* 7.18.0 */
             curl_easy_setopt (curl, CURLOPT_PROXYTYPE,
                               CURLPROXY_SOCKS5_HOSTNAME);
-#else
-            curl_easy_setopt (curl, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
-#endif /* LIBCURL_VERSION_NUM >= 0x071200 */
             break;
     }
 
@@ -1301,7 +1014,6 @@ weeurl_set_proxy (CURL *curl, struct t_proxy *proxy)
                       CONFIG_INTEGER(proxy->options[PROXY_OPTION_PORT]));
 
     /* set username/password */
-#if LIBCURL_VERSION_NUM >= 0x071301 /* 7.19.1 */
     if (CONFIG_STRING(proxy->options[PROXY_OPTION_USERNAME])
         && CONFIG_STRING(proxy->options[PROXY_OPTION_USERNAME])[0])
     {
@@ -1314,7 +1026,6 @@ weeurl_set_proxy (CURL *curl, struct t_proxy *proxy)
         curl_easy_setopt (curl, CURLOPT_PROXYPASSWORD,
                           CONFIG_STRING(proxy->options[PROXY_OPTION_PASSWORD]));
     }
-#endif /* LIBCURL_VERSION_NUM >= 0x071301 */
 }
 
 /*
diff --git a/tools/check_curl_symbols.py b/tools/check_curl_symbols.py
index 73e4b8434..1f2d5b55f 100755
--- a/tools/check_curl_symbols.py
+++ b/tools/check_curl_symbols.py
@@ -50,6 +50,9 @@ SRC_PATH = (
     Path(__file__).resolve().parent.parent / "src" / "core" / "core-url.c"
 )
 
+# NOTE: keep version in sync with CMakeLists.txt
+CURL_MIN_VERSION_STR = "7.47.0"
+
 WEECHAT_CURL_MIN_VERSION_RE = (
     r"#if LIBCURL_VERSION_NUM >= (?P<hex_min_version>0x[0-9A-F]+) "
     r"/\* (?P<str_min_version>[0-9][0-9.]+) \*/"
@@ -145,6 +148,33 @@ def get_curl_symbols(symbols_file: TextIO) -> Dict[str, Tuple[int, int]]:
     return symbols
 
 
+def check_req_symbols(symbols: List[WeechatCurlSymbol]) -> int:
+    """
+    Checks the symbols' min/max version, relative to minimum Curl version that
+    we require.
+
+    :return: errors
+    """
+    errors: int = 0
+    req_curl = curl_version_to_int(CURL_MIN_VERSION_STR)
+    for symbol in symbols:
+        if symbol.min_curl and symbol.min_curl <= req_curl:
+            print(
+                f"{SRC_PATH}:{symbol.line_no}: min version for "
+                f"symbol {symbol.name} older than minimal required "
+                f"curl {req_curl}. Remove if guard."
+            )
+            errors += 1
+        if symbol.max_curl and symbol.max_curl < req_curl:
+            print(
+                f"{SRC_PATH}:{symbol.line_no}: max version for "
+                f"symbol {symbol.name} older than minimal required "
+                f"curl {req_curl}. Remove the symbol."
+            )
+            errors += 1
+    return errors
+
+
 def get_weechat_curl_symbols() -> Tuple[List[WeechatCurlSymbol], int]:
     """
     Parse Curl symbols declared in src/core/core-url.c.
@@ -238,6 +268,8 @@ def get_weechat_curl_symbols() -> Tuple[List[WeechatCurlSymbol], int]:
                 name = f"CURLOPT_{match['name']}"
                 symbols.append(WeechatCurlSymbol(name, v_min, v_max, line_no))
                 continue
+
+    errors += check_req_symbols(symbols)
     return symbols, errors
 
 
@@ -251,6 +283,7 @@ def check_symbols(
     :param weechat_curl_symbols: list of Curl symbols in WeeChat
     :param curl_symbols: list of all Curl symbols
     """
+    req_curl = curl_version_to_int(CURL_MIN_VERSION_STR)
     to_str = curl_version_to_str
     errors = 0
     for symbol in weechat_curl_symbols:
@@ -262,7 +295,7 @@ def check_symbols(
             )
             errors += 1
             continue
-        if symbol.min_curl != curl_symbol[0]:
+        if curl_symbol[0] > req_curl and symbol.min_curl != curl_symbol[0]:
             print(
                 f"{SRC_PATH}:{symbol.line_no}: min version for "
                 f"symbol {symbol.name} differs: "
@@ -270,7 +303,7 @@ def check_symbols(
                 f"{to_str(curl_symbol[0])} in Curl"
             )
             errors += 1
-        if symbol.max_curl != curl_symbol[1]:
+        if curl_symbol[1] >= req_curl and symbol.max_curl != curl_symbol[1]:
             print(
                 f"{SRC_PATH}:{symbol.line_no}: max version for "
                 f"symbol {symbol.name} differs: "