diff --git a/LICENSE b/LICENSE
index 662fc6bb..28d3c09b 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2012-2020, Open PostgreSQL Monitoring Development Group (OPMDG).
+Copyright (c) 2012-2021, Open PostgreSQL Monitoring Development Group (OPMDG).
 
 Permission to use, copy, modify, and distribute this software and its
 documentation for any purpose, without fee, and without a written agreement
diff --git a/README b/README
index 91ed9fff..1cd51503 100644
--- a/README
+++ b/README
@@ -668,6 +668,9 @@ COMPATIBILITY
         Critical and Warning thresholds only accept an interval (eg.
         1h30m25s) and apply to the oldest execution of analyse.
 
+        Tables that were never analyzed, or whose analyze date was lost due
+        to a crash, will raise a critical alert.
+
         NOTE: this service does not raise alerts if the database had
         strictly no writes since last call. In consequence, a read-only
         database can have its oldest analyze reported in perfdata way after
@@ -693,6 +696,9 @@ COMPATIBILITY
         Critical and Warning thresholds only accept an interval (eg.
         1h30m25s) and apply to the oldest vacuum.
 
+        Tables that were never vacuumed, or whose vacuum date was lost due
+        to a crash, will raise a critical alert.
+
         NOTE: this service does not raise alerts if the database had
         strictly no writes since last call. In consequence, a read-only
         database can have its oldest vacuum reported in perfdata way after
@@ -1268,5 +1274,5 @@ LICENSING
 
 AUTHORS
     Author: Open PostgreSQL Monitoring Development Group
-    Copyright: (C) 2012-2020 Open PostgreSQL Monitoring Development Group
+    Copyright: (C) 2012-2021 Open PostgreSQL Monitoring Development Group
 
diff --git a/README.pod b/README.pod
index ecd55d58..393ba474 100644
--- a/README.pod
+++ b/README.pod
@@ -710,6 +710,9 @@ returned.
 Critical and Warning thresholds only accept an interval (eg. 1h30m25s)
 and apply to the oldest execution of analyse.
 
+Tables that were never analyzed, or whose analyze date was lost due to a crash,
+will raise a critical alert.
+
 B<NOTE>: this service does not raise alerts if the database had strictly
 no writes since last call. In consequence, a read-only database can have
 its oldest analyze reported in perfdata way after your thresholds, but not
@@ -735,6 +738,9 @@ execution.
 Critical and Warning thresholds only accept an interval (eg. 1h30m25s)
 and apply to the oldest vacuum.
 
+Tables that were never vacuumed, or whose vacuum date was lost due to a crash,
+will raise a critical alert.
+
 B<NOTE>: this service does not raise alerts if the database had strictly
 no writes since last call. In consequence, a read-only database can have
 its oldest vacuum reported in perfdata way after your thresholds, but not
@@ -1312,5 +1318,5 @@ For license terms, see the LICENSE provided with the sources.
 =head1 AUTHORS
 
 S<Author: Open PostgreSQL Monitoring Development Group>
-S<Copyright: (C) 2012-2020 Open PostgreSQL Monitoring Development Group>
+S<Copyright: (C) 2012-2021 Open PostgreSQL Monitoring Development Group>
 
diff --git a/check_pgactivity b/check_pgactivity
index 437f0999..94d6493d 100755
--- a/check_pgactivity
+++ b/check_pgactivity
@@ -2,7 +2,7 @@
 # This program is open source, licensed under the PostgreSQL License.
 # For license terms, see the LICENSE file.
 #
-# Copyright (C) 2012-2020: Open PostgreSQL Monitoring Development Group
+# Copyright (C) 2012-2021: Open PostgreSQL Monitoring Development Group
 
 =head1 NAME
 
@@ -9073,6 +9073,6 @@ For license terms, see the LICENSE provided with the sources.
 =head1 AUTHORS
 
 S<Author: Open PostgreSQL Monitoring Development Group>
-S<Copyright: (C) 2012-2020 Open PostgreSQL Monitoring Development Group>
+S<Copyright: (C) 2012-2021 Open PostgreSQL Monitoring Development Group>
 
 =cut