version up (#19670)

* version up

* .

* .

* .

* .

code/modules/mob/new_player/login.dm

@@ -77,6 +77,9 @@
 		if(1652 to 1654)
 			problems = "various webview graphics issues and client hanging (1652 to 1654 are all affected). 516.1651 is known to be safe from these issues if a newer version than 1654 is not available."
 
+		if(1682 to 1686)
+			problems = "versions 516.1682 through 516.1686 contain a use-after-free vulnerability. Update to at least 516.1687."
+
 	if(problems)
 		// To get attention
 		var/message = "Your BYOND client version ([client.byond_version].[client.byond_build]) has known issues: [problems]. See the chat window for other version options."

code/modules/tgui_input/text.dm

@@ -142,9 +142,9 @@
 	switch(action)
 		if("submit")
 			if(max_length)
-				if(length(params["entry"]) > max_length)
+				if(length_char(params["entry"]) > max_length)
 					CRASH("[ui.user] typed a text string longer than the max length")
-				if(encode && (length(html_encode(params["entry"])) > max_length))
+				if(encode && (length_char(html_encode(params["entry"])) > max_length))
 					to_chat(ui.user, span_notice("Your message was clipped due to special character usage."))
 			set_entry(params["entry"])
 			closed = TRUE