diff --git a/COPYRIGHT b/COPYRIGHT
index 23778915a6..f9413d0747 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,4 +1,4 @@
-Copyright (C) 1996-2022  Internet Systems Consortium, Inc. ("ISC")
+Copyright (C) 1996-2023  Internet Systems Consortium, Inc. ("ISC")
 
 This Source Code Form is subject to the terms of the Mozilla Public
 License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/doc/arm/conf.py b/doc/arm/conf.py
index af7a525e49..6224f0fbb3 100644
--- a/doc/arm/conf.py
+++ b/doc/arm/conf.py
@@ -108,7 +108,7 @@ sys.path.append(str(Path(__file__).resolve().parent.parent / "misc"))
 
 project = "BIND 9"
 # pylint: disable=redefined-builtin
-copyright = "2022, Internet Systems Consortium"
+copyright = "2023, Internet Systems Consortium"
 author = "Internet Systems Consortium"
 
 m4_vars = {}
diff --git a/doc/man/arpaname.1in b/doc/man/arpaname.1in
index ba91cf0f67..e9b6515e64 100644
--- a/doc/man/arpaname.1in
+++ b/doc/man/arpaname.1in
@@ -43,6 +43,6 @@ BIND 9 Administrator Reference Manual.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/ddns-confgen.8in b/doc/man/ddns-confgen.8in
index c5973050fe..dd5965294d 100644
--- a/doc/man/ddns-confgen.8in
+++ b/doc/man/ddns-confgen.8in
@@ -107,6 +107,6 @@ This option cannot be used with the \fI\%\-s\fP option.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/delv.1in b/doc/man/delv.1in
index 71b1fad341..91da0966a4 100644
--- a/doc/man/delv.1in
+++ b/doc/man/delv.1in
@@ -406,6 +406,6 @@ This option prints response data in YAML format.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dig.1in b/doc/man/dig.1in
index dc311a18bb..a659764283 100644
--- a/doc/man/dig.1in
+++ b/doc/man/dig.1in
@@ -922,6 +922,6 @@ There are probably too many query options.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-cds.1in b/doc/man/dnssec-cds.1in
index 305ef60899..143253fd80 100644
--- a/doc/man/dnssec-cds.1in
+++ b/doc/man/dnssec-cds.1in
@@ -251,6 +251,6 @@ Reference Manual, \fI\%RFC 7344\fP\&.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-dsfromkey.1in b/doc/man/dnssec-dsfromkey.1in
index f2f369bd5e..c35d04f271 100644
--- a/doc/man/dnssec-dsfromkey.1in
+++ b/doc/man/dnssec-dsfromkey.1in
@@ -172,6 +172,6 @@ A keyfile error may return "file not found," even if the file exists.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-importkey.1in b/doc/man/dnssec-importkey.1in
index e36b3bba86..223893e352 100644
--- a/doc/man/dnssec-importkey.1in
+++ b/doc/man/dnssec-importkey.1in
@@ -147,6 +147,6 @@ or the full file name \fBKnnnn.+aaa+iiiii.key\fP, as generated by
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-keyfromlabel.1in b/doc/man/dnssec-keyfromlabel.1in
index a59fa8cf4d..92c3b7d813 100644
--- a/doc/man/dnssec-keyfromlabel.1in
+++ b/doc/man/dnssec-keyfromlabel.1in
@@ -314,6 +314,6 @@ security reasons, this file does not have general read permission.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-keygen.1in b/doc/man/dnssec-keygen.1in
index c90351bf8b..b3a5592df0 100644
--- a/doc/man/dnssec-keygen.1in
+++ b/doc/man/dnssec-keygen.1in
@@ -384,6 +384,6 @@ To generate a matching key\-signing key, issue the command:
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-revoke.1in b/doc/man/dnssec-revoke.1in
index 29884dbe44..edb0c5f117 100644
--- a/doc/man/dnssec-revoke.1in
+++ b/doc/man/dnssec-revoke.1in
@@ -92,6 +92,6 @@ revoke the key.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-settime.1in b/doc/man/dnssec-settime.1in
index 369cea80e7..b0862d9226 100644
--- a/doc/man/dnssec-settime.1in
+++ b/doc/man/dnssec-settime.1in
@@ -291,6 +291,6 @@ metadata, use \fBall\fP\&.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-signzone.1in b/doc/man/dnssec-signzone.1in
index 8fe7290d7d..4481f35c3a 100644
--- a/doc/man/dnssec-signzone.1in
+++ b/doc/man/dnssec-signzone.1in
@@ -510,6 +510,6 @@ db.example.com.signed
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnssec-verify.1in b/doc/man/dnssec-verify.1in
index 9fbd84ea3f..baccdf2415 100644
--- a/doc/man/dnssec-verify.1in
+++ b/doc/man/dnssec-verify.1in
@@ -123,6 +123,6 @@ This option indicates the file containing the zone to be signed.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/dnstap-read.1in b/doc/man/dnstap-read.1in
index df76e6f798..e122c346e7 100644
--- a/doc/man/dnstap-read.1in
+++ b/doc/man/dnstap-read.1in
@@ -68,6 +68,6 @@ This option prints \fBdnstap\fP data in a detailed YAML format.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/filter-a.8in b/doc/man/filter-a.8in
index 35956cb51e..47a2f03332 100644
--- a/doc/man/filter-a.8in
+++ b/doc/man/filter-a.8in
@@ -101,6 +101,6 @@ BIND 9 Administrator Reference Manual.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/filter-aaaa.8in b/doc/man/filter-aaaa.8in
index 3340408db2..0e7d2b2183 100644
--- a/doc/man/filter-aaaa.8in
+++ b/doc/man/filter-aaaa.8in
@@ -105,6 +105,6 @@ BIND 9 Administrator Reference Manual.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/host.1in b/doc/man/host.1in
index 5fbe7ef156..5adc911acd 100644
--- a/doc/man/host.1in
+++ b/doc/man/host.1in
@@ -215,6 +215,6 @@ when \fBhost\fP runs.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/mdig.1in b/doc/man/mdig.1in
index 0f7794e5c9..4208b5641f 100644
--- a/doc/man/mdig.1in
+++ b/doc/man/mdig.1in
@@ -432,6 +432,6 @@ This flag is off by default.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named-checkconf.1in b/doc/man/named-checkconf.1in
index 17ec517a63..4fe625756c 100644
--- a/doc/man/named-checkconf.1in
+++ b/doc/man/named-checkconf.1in
@@ -123,6 +123,6 @@ and 0 otherwise.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named-checkzone.1in b/doc/man/named-checkzone.1in
index 822295ff51..9cb6b4bdd8 100644
--- a/doc/man/named-checkzone.1in
+++ b/doc/man/named-checkzone.1in
@@ -251,6 +251,6 @@ Manual.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named-compilezone.1in b/doc/man/named-compilezone.1in
index b4897f2ae2..fa21550001 100644
--- a/doc/man/named-compilezone.1in
+++ b/doc/man/named-compilezone.1in
@@ -253,6 +253,6 @@ BIND 9 Administrator Reference Manual.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named-journalprint.1in b/doc/man/named-journalprint.1in
index f8eb858100..14b9e6f902 100644
--- a/doc/man/named-journalprint.1in
+++ b/doc/man/named-journalprint.1in
@@ -74,6 +74,6 @@ bug in that release.) Note that these options \fImust not\fP be used while
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named-nzd2nzf.1in b/doc/man/named-nzd2nzf.1in
index 50c8b2475f..b39acb4800 100644
--- a/doc/man/named-nzd2nzf.1in
+++ b/doc/man/named-nzd2nzf.1in
@@ -52,6 +52,6 @@ BIND 9 Administrator Reference Manual.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named-rrchecker.1in b/doc/man/named-rrchecker.1in
index 7088b19420..39196e0ca1 100644
--- a/doc/man/named-rrchecker.1in
+++ b/doc/man/named-rrchecker.1in
@@ -73,6 +73,6 @@ and private type mnemonics, respectively.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named.8in b/doc/man/named.8in
index 2b55eeeed9..b33c7dba57 100644
--- a/doc/man/named.8in
+++ b/doc/man/named.8in
@@ -294,6 +294,6 @@ The default process\-id file.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/named.conf.5in b/doc/man/named.conf.5in
index 1192521ed5..50194c3110 100644
--- a/doc/man/named.conf.5in
+++ b/doc/man/named.conf.5in
@@ -1006,6 +1006,6 @@ zone <string> [ <class> ] {
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/nsec3hash.1in b/doc/man/nsec3hash.1in
index e0ac570c1f..470f2fdd34 100644
--- a/doc/man/nsec3hash.1in
+++ b/doc/man/nsec3hash.1in
@@ -81,6 +81,6 @@ BIND 9 Administrator Reference Manual, \fI\%RFC 5155\fP\&.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/nslookup.1in b/doc/man/nslookup.1in
index e56cb0ef34..25bd5ddbb3 100644
--- a/doc/man/nslookup.1in
+++ b/doc/man/nslookup.1in
@@ -220,6 +220,6 @@ when \fBnslookup\fP runs, or when the standard output is not a tty.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/nsupdate.1in b/doc/man/nsupdate.1in
index fa86e27edf..aa36881dba 100644
--- a/doc/man/nsupdate.1in
+++ b/doc/man/nsupdate.1in
@@ -428,6 +428,6 @@ operations, and may change in future releases.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/rndc-confgen.8in b/doc/man/rndc-confgen.8in
index 02639916f7..fa20381f6c 100644
--- a/doc/man/rndc-confgen.8in
+++ b/doc/man/rndc-confgen.8in
@@ -136,6 +136,6 @@ To print a sample \fI\%rndc.conf\fP file and the corresponding \fBcontrols\fP an
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/rndc.8in b/doc/man/rndc.8in
index 4023b82ee2..b80ce100a3 100644
--- a/doc/man/rndc.8in
+++ b/doc/man/rndc.8in
@@ -718,6 +718,6 @@ Reference Manual.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/rndc.conf.5in b/doc/man/rndc.conf.5in
index 1c88b9b915..0da71e150f 100644
--- a/doc/man/rndc.conf.5in
+++ b/doc/man/rndc.conf.5in
@@ -191,6 +191,6 @@ details.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .
diff --git a/doc/man/tsig-keygen.8in b/doc/man/tsig-keygen.8in
index fe9498c417..303fdf15b1 100644
--- a/doc/man/tsig-keygen.8in
+++ b/doc/man/tsig-keygen.8in
@@ -61,6 +61,6 @@ This option prints a short summary of options and arguments.
 .SH AUTHOR
 Internet Systems Consortium
 .SH COPYRIGHT
-2022, Internet Systems Consortium
+2023, Internet Systems Consortium
 .\" Generated by docutils manpage writer.
 .