diff --git a/src/app-layer.c b/src/app-layer.c
index 67b880731443..b031afce8ac8 100644
--- a/src/app-layer.c
+++ b/src/app-layer.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007-2021 Open Information Security Foundation
+/* Copyright (C) 2007-2023 Open Information Security Foundation
  *
  * You can copy, redistribute or modify this Program under the terms of
  * the GNU General Public License version 2 as published by the Free
diff --git a/src/decode.h b/src/decode.h
index b11963bf4e62..1a844525dafc 100644
--- a/src/decode.h
+++ b/src/decode.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007-2022 Open Information Security Foundation
+/* Copyright (C) 2007-2023 Open Information Security Foundation
  *
  * You can copy, redistribute or modify this Program under the terms of
  * the GNU General Public License version 2 as published by the Free
diff --git a/src/defrag-hash.h b/src/defrag-hash.h
index ffbc054cd9bc..b115b13a91d7 100644
--- a/src/defrag-hash.h
+++ b/src/defrag-hash.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007-2012 Open Information Security Foundation
+/* Copyright (C) 2007-2023 Open Information Security Foundation
  *
  * You can copy, redistribute or modify this Program under the terms of
  * the GNU General Public License version 2 as published by the Free
diff --git a/src/flow-hash.c b/src/flow-hash.c
index 9edd6d1daed5..18f35453d6c6 100644
--- a/src/flow-hash.c
+++ b/src/flow-hash.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2007-2022 Open Information Security Foundation
+/* Copyright (C) 2007-2023 Open Information Security Foundation
  *
  * You can copy, redistribute or modify this Program under the terms of
  * the GNU General Public License version 2 as published by the Free
@@ -655,7 +655,8 @@ static inline void NoFlowHandleIPS(Packet *p)
  *  \param tv thread vars
  *  \param fls lookup support vars
  *
- *  \retval f *LOCKED* flow on success, NULL on error.
+ *  \retval f *LOCKED* flow on success, NULL on error or if we should not create
+ *  a new flow.
  */
 static Flow *FlowGetNew(ThreadVars *tv, FlowLookupStruct *fls, Packet *p)
 {
diff --git a/src/stream-tcp.h b/src/stream-tcp.h
index 76ccb8ec4cfd..324671245995 100644
--- a/src/stream-tcp.h
+++ b/src/stream-tcp.h
@@ -95,7 +95,7 @@ typedef struct StreamTcpThread_ {
     uint16_t counter_tcp_midstream_pickups;
     /** wrong thread */
     uint16_t counter_tcp_wrong_thread;
-    /** ack for unseed data */
+    /** ack for unseen data */
     uint16_t counter_tcp_ack_unseen_data;
 
     /** tcp reassembly thread data */
diff --git a/src/util-exception-policy.c b/src/util-exception-policy.c
index 4513bbb0f2ae..b3cf2952c0ce 100644
--- a/src/util-exception-policy.c
+++ b/src/util-exception-policy.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2022 Open Information Security Foundation
+/* Copyright (C) 2022-2023 Open Information Security Foundation
  *
  * You can copy, redistribute or modify this Program under the terms of
  * the GNU General Public License version 2 as published by the Free
diff --git a/src/util-exception-policy.h b/src/util-exception-policy.h
index 550d4d32c4ee..c304f3e3f4ed 100644
--- a/src/util-exception-policy.h
+++ b/src/util-exception-policy.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2022 Open Information Security Foundation
+/* Copyright (C) 2022-2023 Open Information Security Foundation
  *
  * You can copy, redistribute or modify this Program under the terms of
  * the GNU General Public License version 2 as published by the Free