diff --git a/UPDATING b/UPDATING
index 3f1dd379d4ca..33b97a3abad5 100644
--- a/UPDATING
+++ b/UPDATING
@@ -5,6 +5,21 @@ they are unavoidable.
 You should get into the habit of checking this file for changes each time
 you update your ports collection, before attempting any port upgrades.
 
+20241112
+  AFFECTS: users of databases/prometheus-postgres-exporter
+  AUTHOR: lexi@hemlock.eden.le-fay.org
+
+  BREAKING CHANGE: In postgres_exporter 0.16.0 and later, the log message format
+  has changed.  From the upstream release notes:
+
+  The logging system has been replaced with log/slog from the stdlib.  This
+  change is being made across the prometheus ecosystem.  The logging output has
+  changed, but the messages and levels remain the same.  The ts label for the
+  timestamp has been replaced with time, the accuracy is less, and the timezone
+  is not forced to UTC.  The caller field has been replaced by the source field,
+  which now includes the full path to the source file. The level field now
+  exposes the log level in capital letters.
+
 20241110
   AFFECTS: users of devel/apr1 and www/apache24
   AUTHOR: brnrd@FreeBSD.org
diff --git a/databases/prometheus-postgres-exporter/Makefile b/databases/prometheus-postgres-exporter/Makefile
index b8cccb2f848d..52a5d01831d3 100644
--- a/databases/prometheus-postgres-exporter/Makefile
+++ b/databases/prometheus-postgres-exporter/Makefile
@@ -1,10 +1,9 @@
 PORTNAME=	prometheus-postgres-exporter
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.15.0
-PORTREVISION=	3
+DISTVERSION=	0.16.0
 CATEGORIES=	databases
 
-MAINTAINER=	lexi.freebsd@le-fay.org
+MAINTAINER=	lexi@hemlock.eden.le-fay.org
 COMMENT=	PostgreSQL metric exporter for Prometheus
 WWW=		https://github.com/prometheus-community/postgres_exporter
 
@@ -19,7 +18,7 @@ GO_TARGET=	./cmd/postgres_exporter:${PREFIX}/bin/postgres_exporter
 SUB_FILES=	pkg-message
 
 PLIST_FILES=	bin/postgres_exporter \
-				etc/postgres_exporter.yml.sample
+		etc/postgres_exporter.yml.sample
 
 post-install:
 	@${MKDIR} ${STAGEDIR}${PREFIX}/etc
diff --git a/databases/prometheus-postgres-exporter/distinfo b/databases/prometheus-postgres-exporter/distinfo
index f0f8d8aeffb4..ab7b772f7c4f 100644
--- a/databases/prometheus-postgres-exporter/distinfo
+++ b/databases/prometheus-postgres-exporter/distinfo
@@ -1,5 +1,5 @@
-TIMESTAMP = 1708907285
-SHA256 (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.15.0/v0.15.0.mod) = 2eca3234e2449a0b04bf99c4761b5b62e6ddd6be2b9083b89837a57087fb0a59
-SIZE (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.15.0/v0.15.0.mod) = 1853
-SHA256 (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.15.0/v0.15.0.zip) = cbe281e1764b5df206eafd0ae5e5fee0b569afb3883b1502d2b1793694a53dd5
-SIZE (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.15.0/v0.15.0.zip) = 151785
+TIMESTAMP = 1731341402
+SHA256 (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.16.0/v0.16.0.mod) = e16051bb4c30828066f28f893adb575164484a0a3ac2740c089a99057e22c0b1
+SIZE (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.16.0/v0.16.0.mod) = 1805
+SHA256 (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.16.0/v0.16.0.zip) = 1246fbf68c0a81929ca97f4967dfabaab40604c216917a7073f5904e282b7d05
+SIZE (go/databases_prometheus-postgres-exporter/prometheus-postgres-exporter-v0.16.0/v0.16.0.zip) = 156127
diff --git a/databases/prometheus-postgres-exporter/files/pkg-message.in b/databases/prometheus-postgres-exporter/files/pkg-message.in
index 8887b3fe3433..2a2f4e333767 100644
--- a/databases/prometheus-postgres-exporter/files/pkg-message.in
+++ b/databases/prometheus-postgres-exporter/files/pkg-message.in
@@ -26,4 +26,19 @@ exporter into Prometheus, refer to the documentation at:
 https://github.com/prometheus-community/postgres_exporter
 EOM
 }
+{ type: upgrade
+  maximum_version: "0.16.0"
+  message: <<EOM
+BREAKING CHANGE: In postgres_exporter 0.16.0 and later, the log message format
+has changed.  From the upstream release notes:
+
+The logging system has been replaced with log/slog from the stdlib. This change
+is being made across the prometheus ecosystem. The logging output has changed,
+but the messages and levels remain the same. The ts label for the timestamp has
+been replaced with time, the accuracy is less, and the timezone is not forced
+to UTC. The caller field has been replaced by the source field, which now
+includes the full path to the source file. The level field now exposes the log
+level in capital letters.
+EOM
+}
 ]