commit - 1fc54ebef1e511c7a512f01e05dea064b2f0e0b9
commit + 42e8654d7b04197eb90ce1ccd8a055ffb6309c3d
blob - 7a7712af6236d1bba13321041629c24bc4100bc5
blob + 5d521b55cdee07a1439c977eb335374b8b3279fe
--- INSTALL.md
+++ INSTALL.md
@@ -13,6 +13,14 @@ configure ngIRCd.
 ## Upgrade Information
 
 Differences to version 25
+
+- **Attention**:
+  All already deprecated legacy options (besides the newly deprecated *Key* and
+  *MaxUsers* settings, see below) were removed in ngIRCd 26, so make sure to
+  update your configuration before upgrading, if you haven't done so already
+  (you got a warning on daemon startup when using deprecated options): you can
+  check your configuration using `ngircd --configtest` -- which is a good idea
+  anyway ;-)
 
 - Setting modes for predefined channels in *[Channel]* sections has been
   enhanced: now you can set *all* modes, like in IRC "MODE" commands, and have