diff --git a/base/comps/azurelinux-release/90-default.preset b/base/comps/azurelinux-release/90-default.preset
index 8702fc3c91d..809603bdb7e 100644
--- a/base/comps/azurelinux-release/90-default.preset
+++ b/base/comps/azurelinux-release/90-default.preset
@@ -28,10 +28,6 @@ enable auditd.service
 
 enable audit-rules.service
 
-# Backward-compat: override /proc/version so tools that grep for "Mariner"
-# can identify Azure Linux
-enable proc-version-override.service
-
 # Locally-running service
 enable restorecond.service
 
@@ -375,3 +371,4 @@ enable gpio-manager.service
 
 # Enable authselect-apply-changes.service
 enable authselect-apply-changes.service
+
diff --git a/base/comps/azurelinux-release/azurelinux-release.spec b/base/comps/azurelinux-release/azurelinux-release.spec
index e12e976b583..b9513ead2fb 100644
--- a/base/comps/azurelinux-release/azurelinux-release.spec
+++ b/base/comps/azurelinux-release/azurelinux-release.spec
@@ -39,7 +39,7 @@ Summary:        Azure Linux release files
 Name:           azurelinux-release
 Version:        4.0
 # TODO(azl): Review whether we can move back to autorelease (with conditional -p)
-Release:        10%{?dist}
+Release:        11%{?dist}
 License:        MIT
 URL:            https://aka.ms/azurelinux
 
@@ -52,8 +52,7 @@ Source14:       distro-template.swidtag
 Source15:       distro-variant-template.swidtag
 Source16:       20-azurelinux-defaults.conf
 Source17:       20-azure.conf
-Source18:       proc-version-override.service
-Source19:       proc-version-override.sh
+
 Source20:       chrony-azure.conf
 Source21:       50-azure-cloud.conf
 Source22:       70-azurelinux-hardening.conf
@@ -402,10 +401,6 @@ ln -s --relative %{buildroot}%{_swidtagdir} %{buildroot}%{_sysconfdir}/swid/swid
 # Install DNF 5 configuration defaults
 install -Dm0644 %{SOURCE16} -t %{buildroot}%{_prefix}/share/dnf5/libdnf.conf.d/
 
-# Install proc-version-override (backward-compat for tools that grep /proc/version for "Mariner")
-install -Dm0644 %{SOURCE18} -t %{buildroot}%{_unitdir}/
-install -Dm0755 %{SOURCE19} %{buildroot}%{_libexecdir}/proc-version-override
-
 # Install sysctl configuration
 install -Dm0644 %{SOURCE22} -t %{buildroot}%{_sysctldir}/
 
@@ -435,8 +430,6 @@ install -Dm0644 %{SOURCE22} -t %{buildroot}%{_sysctldir}/
 %dir %{_sysconfdir}/swid
 %{_sysconfdir}/swid/swidtags.d
 %{_prefix}/share/dnf5/libdnf.conf.d/20-azurelinux-defaults.conf
-%{_unitdir}/proc-version-override.service
-%{_libexecdir}/proc-version-override
 %{_sysctldir}/70-azurelinux-hardening.conf
 
 
@@ -476,6 +469,9 @@ install -Dm0644 %{SOURCE22} -t %{buildroot}%{_sysctldir}/
 
 
 %changelog
+* Thu Apr 23 2026 Dan Streetman <ddstreet@ieee.org> - 4.0-11
+- Revert proc-version-override
+
 * Tue Apr 21 2026 Dan Streetman <ddstreet@ieee.org> - 4.0-10
 - Fix distcore macro definition
 
diff --git a/base/comps/azurelinux-release/proc-version-override.service b/base/comps/azurelinux-release/proc-version-override.service
deleted file mode 100644
index 7bf9cee64ea..00000000000
--- a/base/comps/azurelinux-release/proc-version-override.service
+++ /dev/null
@@ -1,15 +0,0 @@
-[Unit]
-Description=Override /proc/version for legacy OS detection (CBL-Mariner compat)
-Before=waagent.service cloud-init.service cloud-init-local.service
-After=local-fs.target
-ConditionVirtualization=vm
-
-[Service]
-Type=oneshot
-RemainAfterExit=yes
-ExecStart=/usr/libexec/proc-version-override
-ExecStop=-/bin/umount /proc/version
-ExecStopPost=-/bin/rm -f /run/proc_version_override
-
-[Install]
-WantedBy=multi-user.target
diff --git a/base/comps/azurelinux-release/proc-version-override.sh b/base/comps/azurelinux-release/proc-version-override.sh
deleted file mode 100644
index c9161eeb5cd..00000000000
--- a/base/comps/azurelinux-release/proc-version-override.sh
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/bin/bash
-# Generate a /proc/version override that includes both "CBL-Mariner" and
-# "azurelinux" identifiers, then bind-mount it over /proc/version.
-#
-# This preserves backward compatibility with tools that grep /proc/version
-# for "Mariner" (e.g. Guest-Configuration-Extension) while also advertising
-# the current distro name.
-
-set -euo pipefail
-
-OVERRIDE=/run/proc_version_override
-
-# `mount --bind` on a file target is not idempotent; repeated runs can stack
-# mounts on /proc/version. Unwind any existing mount layers before reading
-# the real /proc/version and rebinding.
-while findmnt -n /proc/version >/dev/null 2>&1; do
-    umount /proc/version
-done
-
-# Build a version string using the real kernel version, replacing only
-# the (user@host) field with (root@CBL-Mariner-azurelinux).
-#
-# Real /proc/version format:
-#   Linux version <uname -r> (mockbuild@koji-builder-...) (gcc (GCC) ...) #1 SMP ...
-# Override:
-#   Linux version <uname -r> (root@CBL-Mariner-azurelinux) (gcc (GCC) ...) #1 SMP ...
-#
-# We strip the first parenthesized group (user@host) and keep everything
-# after it (compiler info, build config, timestamp) verbatim.
-# Also replace "Red Hat" in the GCC version string so tools that pattern-match
-# /proc/version (e.g. GCE's guest-configuration-shim) don't misidentify AZL as
-# RHEL based on the compiler tag.
-KVER=$(uname -r)
-TAIL=$(sed 's/^[^)]*)[[:space:]]*//' /proc/version | sed 's/Red Hat/Azure Linux/g')
-
-install -m 0444 /dev/null "$OVERRIDE"
-cat > "$OVERRIDE" <<EOF
-Linux version ${KVER} (root@CBL-Mariner-azurelinux) ${TAIL}
-EOF
-chmod 0444 "$OVERRIDE"
-
-mount --bind "$OVERRIDE" /proc/version
-mount -o remount,bind,ro /proc/version