diff --git a/languages/da-DK-help.lang.json b/languages/da-DK-help.lang.json
index 1aa20df0..be281ef2 100644
--- a/languages/da-DK-help.lang.json
+++ b/languages/da-DK-help.lang.json
@@ -11,12 +11,13 @@
   "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": "",
-  "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": "",
-  "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.": "",
+  "CHATHISTORY [params]\n\nCHATHISTORY is a history replay command associated with the IRCv3\nspecification draft/chathistory. See this document:\nhttps://github.com/ircv3/ircv3-specifications/pull/393": "",
+  "DEBUG <option>\n\nProvides various debugging commands for 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 a memory profile.\n* CRASHSERVER: Crashes the server (for use in failover testing)": "",
+  "DEOPER\n\nDEOPER removes the IRCop privileges granted to you by a successful /OPER.": "",
   "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.": "",
+  "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). [limit] can be\neither an integer (the maximum number of messages to replay), or a time\nduration like 10m or 1h (the time window within which to replay messages).": "",
   "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.": "",