diff --git a/Legacy-support.md b/Legacy-support.md
index 64feb4e..6845992 100644
--- a/Legacy-support.md
+++ b/Legacy-support.md
@@ -1,4 +1,4 @@
-If you use DungeonsXL with an older version than Minecraft 1.9, note that some features will not work.
+If you use DungeonsXL with an older version than Minecraft 1.9, note that some features will not work. Besides that, DungeonsXL is created to work with server softwares that implement the Spigot API, which is slightly extended compared to the pure Bukkit API. Therefore, some features will work with Spigot, but not with CraftBukkit.
 
 ## Caliburn integration
 DungeonsXL uses the Caliburn API to fetch items from config. This does not work with 1.7.x and 1.8.x, though. These versions use a built-in, less powerful util with a slightly different syntax
@@ -22,4 +22,5 @@ Warrior:
 
 ## Broken features
 * The /dxl deleteportal command does not work with 1.7.x.
-* Drop signs don't work with 1.7.x and 1.8.x.
\ No newline at end of file
+* Drop signs don't work with 1.7.x and 1.8.x.
+* Clickable chat messages work with Spigot, but not with CraftBukkit. DungeonsXL uses this feature for announcers. Announcers will still work with CraftBukkit; the issues are merely cosmetic.