Adds unread changes notification

code/modules/client/client procs.dm

@@ -308,6 +308,11 @@
 
 	send_resources()
 
+	if(prefs.lastchangelog != changelog_hash) //bolds the changelog button on the interface so we know there are updates. -CP
+		winset(src, "rpane.changelog", "background-color=#f4aa94;font-style=bold")
+		prefs.SetChangelog(src,changelog_hash)
+		src << "<span class='info'>Changelog has changed since your last visit.</span>"
+
 	if(!void)
 		void = new()
 

code/modules/client/preferences.dm

@@ -77,7 +77,7 @@ var/global/list/special_role_times = list( //minimum age (in days) for accounts
 	var/last_id
 
 	//game-preferences
-//	var/lastchangelog = ""				//Saved changlog filesize to detect if there was a change
+	var/lastchangelog = ""				//Saved changelog filesize to detect if there was a change
 	var/ooccolor = "#b82e00"
 	var/be_special = list()				//Special role selection
 	var/UI_style = "Midnight"

code/modules/client/preferences_mysql.dm

@@ -12,7 +12,8 @@
 					randomslot,
 					volume,
 					nanoui_fancy,
-					show_ghostitem_attack
+					show_ghostitem_attack,
+					lastchangelog
 					FROM [format_table_name("player")]
 					WHERE ckey='[C.ckey]'"}
 					)
@@ -38,10 +39,10 @@
 		volume = text2num(query.item[10])
 		nanoui_fancy = text2num(query.item[11])
 		show_ghostitem_attack = text2num(query.item[12])
+		lastchangelog = query.item[13]
 
 	//Sanitize
 	ooccolor		= sanitize_hexcolor(ooccolor, initial(ooccolor))
-//	lastchangelog	= sanitize_text(lastchangelog, initial(lastchangelog))
 	UI_style		= sanitize_inlist(UI_style, list("White", "Midnight"), initial(UI_style))
 	default_slot	= sanitize_integer(default_slot, 1, max_save_slots, initial(default_slot))
 	toggles			= sanitize_integer(toggles, 0, 65535, initial(toggles))
@@ -52,6 +53,7 @@
 	volume			= sanitize_integer(volume, 0, 100, initial(volume))
 	nanoui_fancy	= sanitize_integer(nanoui_fancy, 0, 1, initial(nanoui_fancy))
 	show_ghostitem_attack = sanitize_integer(show_ghostitem_attack, 0, 1, initial(show_ghostitem_attack))
+	lastchangelog	= sanitize_text(lastchangelog, initial(lastchangelog))
 	return 1
 
 /datum/preferences/proc/save_preferences(client/C)
@@ -75,7 +77,8 @@
 					randomslot='[randomslot]',
 					volume='[volume]',
 					nanoui_fancy='[nanoui_fancy]',
-					show_ghostitem_attack='[show_ghostitem_attack]'
+					show_ghostitem_attack='[show_ghostitem_attack]',
+					lastchangelog='[lastchangelog]',
 					WHERE ckey='[C.ckey]'"}
 					)
 
@@ -449,4 +452,14 @@
 		load_character(C)
 		return 0
 	load_character(C,pick(saves))
-	return 1*/
+	return 1*/
+
+/datum/preferences/proc/SetChangelog(client/C,hash)
+	lastchangelog=hash
+	var/DBQuery/query = dbcon.NewQuery("UPDATE client SET lastchangelog='[lastchangelog]' WHERE ckey='[C.ckey]'")
+	if(!query.Execute())
+		var/err = query.ErrorMsg()
+		log_game("SQL ERROR during lastchangelog updating. Error : \[[err]\]\n")
+		message_admins("SQL ERROR during lastchangelog updating. Error : \[[err]\]\n")
+		return
+	return 1