diff --git a/src/event.bif b/src/event.bif
index b925f02144..02e55c4f14 100644
--- a/src/event.bif
+++ b/src/event.bif
@@ -891,6 +891,7 @@ event Pcap::file_done%(path: string%);
 ##
 ## .. zeek:see:: UnknownProtocol::first_bytes_count
 event unknown_protocol%(analyzer_name: string, protocol: count, first_bytes: string, analyzer_history: string_vec%);
+event unknown_protocol%(analyzer_name: string, protocol: count, first_bytes: string%) &deprecated="Remove in v8.1. Use the version that includes analyzer_history.";
 
 ## An event for handling packets that reached the end of processing without
 ## being marked as processed. Note that this event may lead to unpredictable
diff --git a/src/packet_analysis/Manager.h b/src/packet_analysis/Manager.h
index 010cef27b8..5497382714 100644
--- a/src/packet_analysis/Manager.h
+++ b/src/packet_analysis/Manager.h
@@ -180,6 +180,8 @@ public:
      * Tracks the given analyzer for the current packet's analyzer history.
      * The packet analyzer history is implemented in form of a stack, which is reset on a
      * call to ProcessPacket() but maintained throughout calls to ProcessInnerPacket().
+     *
+     * @param analyzer The analyzer to track.
      */
     void TrackAnalyzer(Analyzer* analyzer) { analyzer_stack.push_back(analyzer); }