diff --git a/COMPATIBILITY.txt b/COMPATIBILITY.txt
index c41aadd..d5f706a 100644
--- a/COMPATIBILITY.txt
+++ b/COMPATIBILITY.txt
@@ -4,19 +4,19 @@ Everything works:
 	Mango IRC
 	AndroIRC
 	Lite IRC
-	HoloIRC
 	Mutter
 	Weechat
 
 Usable, with bugs:
+	HoloIRC
+	- No client tag support, upstream bug https://github.com/tilal6991/HoloIRC/issues/140
 	AndChat
 	- duplicate usernames appearing. possibly an upstream bug https://github.com/znc/znc/issues/424
 	Irssi
-	- critical nicklist_set_host: assertion 'host != NULL' failed
-		- still occurs even without blank nicks in room privmsgs
+	- Ignorable warning "critical nicklist_set_host: assertion 'host != NULL' failed"
 
 Unusable:
 	Yaaic/Atomic
 	- doesn't properly understand/parse the room join
 	Atomic
-	- crashes if a blank nick is used for room privmsgs (but PtokaX is fine)
+	- crashes if a blank nick is used for room privmsgs (but fine when we set it to "PtokaX")
diff --git a/TODO.txt b/TODO.txt
index c8e2d39..b5596e3 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -1,37 +1,38 @@
 
-
-- Not always detecting CTCP version??
-
-2016/05/08 13:53:15  >>> 'NOTICE' [PtokaX 
VERSION :Relay:1.0:Android
]
-2016/05/08 13:53:15  <<< :pokehub.info 404 holoirc PtokaX :Cannot send to channel
-
-
-
 WISHLIST
 ========
 
-- send client keepalives (PING) /and/ ensure we get a reply (PONG)
+- verify PING responses (application-layer timeout protocol)
 
 - automatic markdown bold/italic formatting
 
 - support changing nick (via reconnecting)
 
-- support USERHOST (used by androirc)
-	2016/05/08 13:43:55  >>> 'USERHOST' [squirtle90]
-	2016/05/08 13:43:55  <<< :pokehub.info 421 squirtle90 USERHOST :Unknown command
-
-- support WHOX
-
 - support WHOIS
 
 - support USERIP/KILL/KICK for ops
 
 - use CTCP chat to support irc-special characters in chat messages (colon, newline)
 
+
+
+
+WONTFIX
+=======
+
+There's no additional client compatibility gained by implementing the following
+
+- support USERHOST (used by androirc)
+	2016/05/08 13:43:55  >>> 'USERHOST' [squirtle90]
+	2016/05/08 13:43:55  <<< :pokehub.info 421 squirtle90 USERHOST :Unknown command
+
+- support WHOX
+
 - support SASL PLAIN authentication as well as just classic PASS
 
 
 
+
 REF
 ===