diff --git a/languages/ja-JP-help.lang.json b/languages/ja-JP-help.lang.json
index 7509b8be..1aa20df0 100644
--- a/languages/ja-JP-help.lang.json
+++ b/languages/ja-JP-help.lang.json
@@ -8,18 +8,15 @@
   "AMBIANCE <target> <text to be sent>\n\nThe AMBIANCE command is used to send a scene notification to the given target.": "",
   "AUTHENTICATE\n\nUsed during SASL authentication. See the IRCv3 specs for more info:\nhttp://ircv3.net/specs/extensions/sasl-3.1.html": "",
   "AWAY [message]\n\nIf [message] is sent, marks you away. If [message] is not sent, marks you no\nlonger away.": "",
+  "BATCH {+,-}reference-tag type [params...]\n\nBATCH initiates an IRCv3 client-to-server batch. You should never need to\nissue this command manually.": "",
   "BRB [message]\n\nDisconnects you from the server, while instructing the server to keep you\npresent for a short time window. During this window, you can either resume\nor reattach to your nickname. If [message] is sent, it is used as your away\nmessage (and as your quit message if you don't return in time).": "",
   "CAP <subcommand> [:<capabilities>]\n\nUsed in capability negotiation. See the IRCv3 specs for more info:\nhttp://ircv3.net/specs/core/capability-negotiation-3.1.html\nhttp://ircv3.net/specs/core/capability-negotiation-3.2.html": "",
-  "CHANSERV <subcommand> [params]\n\nChanServ controls channel registrations.": "",
   "CHATHISTORY [params]\n\nCHATHISTORY is an experimental history replay command. See these documents:\nhttps://github.com/MuffinMedic/ircv3-specifications/blob/chathistory/extensions/chathistory.md\nhttps://gist.github.com/DanielOaks/c104ad6e8759c01eb5c826d627caf80d": "",
-  "CS <subcommand> [params]\n\nChanServ controls channel registrations.": "",
   "DEBUG <option>\n\nPrints debug information about the IRCd. <option> can be one of:\n\n* GCSTATS: Garbage control statistics.\n* NUMGOROUTINE: Number of goroutines in use.\n* STARTCPUPROFILE: Starts the CPU profiler.\n* STOPCPUPROFILE: Stops the CPU profiler.\n* PROFILEHEAP: Writes out the CPU profiler info.": "",
   "DLINE [ANDKILL] [MYSELF] [duration] <ip>/<net> [ON <server>] [reason [| oper reason]]\nDLINE LIST\n\nBans an IP address or network from connecting to the server. If the duration is\ngiven then only for that long. The reason is shown to the user themselves, but\neveryone else will see a standard message. The oper reason is shown to\noperators getting info about the DLINEs that exist.\n\nBans are saved across subsequent launches of the server.\n\n\"ANDKILL\" means that all matching clients are also removed from the server.\n\n\"MYSELF\" is required when the DLINE matches the address the person applying it is connected\nfrom. If \"MYSELF\" is not given, trying to DLINE yourself will result in an error.\n\n[duration] can be of the following forms:\n\t1y 12mo 31d 10h 8m 13s\n\n<net> is specified in typical CIDR notation. For example:\n\t127.0.0.1/8\n\t8.8.8.8/24\n\nON <server> specifies that the ban is to be set on that specific server.\n\n[reason] and [oper reason], if they exist, are separated by a vertical bar (|).\n\nIf \"DLINE LIST\" is sent, the server sends back a list of our current DLINEs.": "",
   "HELP <argument>\n\nGet an explanation of <argument>, or \"index\" for a list of help topics.": "",
   "HELPOP <argument>\n\nGet an explanation of <argument>, or \"index\" for a list of help topics.": "",
   "HISTORY <target> [limit]\n\nReplay message history. <target> can be a channel name, \"me\" to replay direct\nmessage history, or a nickname to replay another client's direct message\nhistory (they must be logged into the same account as you). At most [limit]\nmessages will be replayed.": "",
-  "HOSTSERV <command> [params]\n\nHostServ lets you manage your vhost (a string displayed in place of your\nreal hostname).": "",
-  "HS <command> [params]\n\nHostServ lets you manage your vhost (a string displayed in place of your\nreal hostname).": "",
   "INFO\n\nSends information about the server, developers, etc.": "",
   "INVITE <nickname> <channel>\n\nInvites the given user to the given channel, so long as you have the\nappropriate channel privs.": "",
   "ISON <nickname>{ <nickname>}\n\nReturns whether the given nicks exist on the network.": "",
@@ -35,12 +32,10 @@
   "MOTD [server]\n\nReturns the message of the day for this, or the given, server.": "",
   "NAMES [<channel>{,<channel>}]\n\nViews the clients joined to a channel and their channel membership prefixes. To\nview the channel membership prefixes supported by this server, see the help for\n\"PREFIX\".": "",
   "NICK <newnick>\n\nSets your nickname to the new given one.": "",
-  "NICKSERV <subcommand> [params]\n\nNickServ controls accounts and user registrations.": "",
   "NOTICE <target>{,<target>} <text to be sent>\n\nSends the text to the given targets as a NOTICE.": "",
   "NPC <target> <sourcenick> <text to be sent>\n\t\t\nThe NPC command is used to send a message to the target as the source.\n\nRequires the roleplay mode (+E) to be set on the target.": "",
   "NPCA <target> <sourcenick> <text to be sent>\n\t\t\nThe NPC command is used to send an action to the target as the source.\n\nRequires the roleplay mode (+E) to be set on the target.": "",
-  "NS <subcommand> [params]\n\nNickServ controls accounts and user registrations.": "",
-  "OPER <name> <password>\n\nIf the correct details are given, gives you IRCop privs.": "",
+  "OPER <name> [password]\n\nIf the correct details are given, gives you IRCop privs.": "",
   "PART <channel>{,<channel>} [reason]\n\nLeaves the given channels and shows people the given reason.": "",
   "PASS <password>\n\nWhen the server requires a connection password to join, used to send us the\npassword.": "",
   "PING <args>...\n\nRequests a PONG. Used to check link connectivity.": "",