diff --git a/sysutils/cpu-microcode-rc/Makefile b/sysutils/cpu-microcode-rc/Makefile
index 280f5fb3bc40..63270f72c088 100644
--- a/sysutils/cpu-microcode-rc/Makefile
+++ b/sysutils/cpu-microcode-rc/Makefile
@@ -1,28 +1,28 @@
 PORTNAME=	microcode
 PORTVERSION=	1.0
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	sysutils
 MASTER_SITES=	# none
 PKGNAMEPREFIX=	cpu-
 PKGNAMESUFFIX=	-rc
 DISTFILES=	# none
 EXTRACT_ONLY=	# none
 
 MAINTAINER=	jrm@FreeBSD.org
 COMMENT=	RC script for CPU microcode updates
 
 LICENSE=	BSD2CLAUSE
 
 ONLY_FOR_ARCHS=	amd64 i386
 
 USE_RC_SUBR=	microcode_update
 
 DATADIR=	${PREFIX}/share/cpucontrol
 NO_ARCH=	yes
 NO_BUILD=	yes
 NO_INSTALL=	yes
 SUB_FILES=	pkg-message
 
 NO_WRKSUBDIR=	yes
 
 .include <bsd.port.mk>
diff --git a/sysutils/cpu-microcode-rc/files/pkg-message.in b/sysutils/cpu-microcode-rc/files/pkg-message.in
index 10c1816da5f7..85d9dc716ead 100644
--- a/sysutils/cpu-microcode-rc/files/pkg-message.in
+++ b/sysutils/cpu-microcode-rc/files/pkg-message.in
@@ -1,50 +1,53 @@
 [
 { type: install
   message: <<EOM
 This port includes an RC script, which is one of two methods to update
 the CPU microcode on a FreeBSD system.
 
 1. Early loading.
    This method does not use the RC script included here.
    This is the preferred method, because it ensures that any CPU features
    added or removed by a microcode update are visible to the kernel by
    applying the update before the kernel performs CPU feature detection.
 
    To enable updates using early loading, add the following lines to
    /boot/loader.conf:
 
    cpu_microcode_load="YES"
 
    and the appropriate one of these lines:
 
    cpu_microcode_name="/boot/firmware/intel-ucode.bin"
    cpu_microcode_name="/boot/firmware/amd-ucode.bin"
 
    The microcode update will be loaded when the system is rebooted.
 
+   AMD systems running FreeBSD prior to 2024-02-22 snapshot
+   34467bd76 only support late loading.
+
 
 2. Late loading.
    This method, which does use the RC script included here, is enabled by
    adding the following line to /etc/rc.conf:
 
    microcode_update_enable="YES"
 
    The microcode update is then applied upon reboot or when the microcode
    update service is run via:
 
    # service microcode_update start
 
    If the CPU requires a microcode update, a console message such as the
    following will appear:
 
    Updating CPU Microcode...
    %%DATADIR%%/m32306c3_00000022.fw: updating cpu /dev/cpuctl0 from rev 0x17 to rev 0x22... done.
    %%DATADIR%%/m32306c3_00000022.fw: updating cpu /dev/cpuctl2 from rev 0x17 to rev 0x22... done.
    %%DATADIR%%/m32306c3_00000022.fw: updating cpu /dev/cpuctl4 from rev 0x17 to rev 0x22... done.
    %%DATADIR%%/m32306c3_00000022.fw: updating cpu /dev/cpuctl6 from rev 0x17 to rev 0x22... done.
    Done.
 
 It is safe to enable both methods.
 EOM
 }
 ]
diff --git a/sysutils/cpu-microcode-rc/pkg-descr b/sysutils/cpu-microcode-rc/pkg-descr
index 815fa3126b0d..d37b5dcca7e3 100644
--- a/sysutils/cpu-microcode-rc/pkg-descr
+++ b/sysutils/cpu-microcode-rc/pkg-descr
@@ -1,3 +1,10 @@
-An RC script for use with the cpuctl(4) microcode update facility to keep your
-processor's firmware up-to-date.  CPU microcode data must be installed from a
-vendor.  See sysutils/devcpu-data-amd and sysutils/devcpu-data-intel.
+An RC script for one of two methods to update CPU microcode.
+
+Early loading, which does not require this RC script, is usually the preferred
+method because updates are applied before the kernel performs CPU feature
+detection.  The other method, which requires this RC script, is late loading.
+AMD systems running FreeBSD prior to 2024-02-22 snapshot 34467bd76 only support
+late loading.
+
+CPU microcode data can be installed from one of the sysutils/cpu-microcode-*
+ports.