readme.en: 6.17 kernel iptables notice

docs/readme.en.md

@@ -1,4 +1,4 @@
-# zapret v71.3
+# zapret v71.4
 
 # SCAMMER WARNING
 
@@ -701,6 +701,9 @@ Set up bridge networking.
 
 ### IPTABLES for nfqws
 
+> [!CAUTION]
+> Starting from Linux kernel 6.17 there's CONFIG_NETFILTER_XTABLES_LEGACY parameter which is not set by default. Many distributions will likely will not turn it on making iptables-legacy non working. This is part of iptables deprecation. However iptables-nft still works because their backend is based on nftables.
+
 This is the common way to redirect some traffic to nfqws :
 
 ```

docs/readme.md

@@ -1,4 +1,4 @@
-# zapret v71.3
+# zapret v71.4
 
 # ВНИМАНИЕ, остерегайтесь мошенников