diff --git a/4.1-rc/alpine/10-defaults.conf b/4.1-rc/alpine/10-defaults.conf
new file mode 100644
index 00000000..27973c74
--- /dev/null
+++ b/4.1-rc/alpine/10-defaults.conf
@@ -0,0 +1,12 @@
+## DEFAULT SETTINGS ARE NOT MEANT TO BE TAKEN STRAIGHT INTO PRODUCTION
+## see https://www.rabbitmq.com/configure.html for further information
+## on configuring RabbitMQ
+
+## allow access to the guest user from anywhere on the network
+## https://www.rabbitmq.com/access-control.html#loopback-users
+## https://www.rabbitmq.com/production-checklist.html#users
+loopback_users.guest = false
+
+## Send all logs to stdout/TTY. Necessary to see logs when running via
+## a container
+log.console = true
diff --git a/4.1-rc/alpine/20-management_agent.disable_metrics_collector.conf b/4.1-rc/alpine/20-management_agent.disable_metrics_collector.conf
new file mode 100644
index 00000000..6eb7a86c
--- /dev/null
+++ b/4.1-rc/alpine/20-management_agent.disable_metrics_collector.conf
@@ -0,0 +1,2 @@
+# Enable Prometheus-style metrics by default (https://github.com/docker-library/rabbitmq/issues/419)
+management_agent.disable_metrics_collector = true
diff --git a/4.1-rc/alpine/Dockerfile b/4.1-rc/alpine/Dockerfile
new file mode 100644
index 00000000..1dc98404
--- /dev/null
+++ b/4.1-rc/alpine/Dockerfile
@@ -0,0 +1,324 @@
+#
+# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
+#
+# PLEASE DO NOT EDIT IT DIRECTLY.
+#
+
+# Alpine Linux is not officially supported by the RabbitMQ team -- use at your own risk!
+FROM alpine:3.20 as build-base
+
+RUN apk add --no-cache \
+	build-base \
+	dpkg-dev \
+	dpkg \
+	gnupg \
+	libc-dev \
+	linux-headers \
+	ncurses-dev
+
+FROM build-base as openssl-builder
+
+ARG BUILDKIT_SBOM_SCAN_STAGE=true
+
+# Default to a PGP keyserver that pgp-happy-eyeballs recognizes, but allow for substitutions locally
+ARG PGP_KEYSERVER=keyserver.ubuntu.com
+# If you are building this image locally and are getting `gpg: keyserver receive failed: No data` errors,
+# run the build with a different PGP_KEYSERVER, e.g. docker build --tag rabbitmq:4.1-rc --build-arg PGP_KEYSERVER=pgpkeys.eu 4.1-rc/ubuntu
+# For context, see https://github.com/docker-library/official-images/issues/4252
+
+ENV OPENSSL_VERSION 3.3.2
+ENV OPENSSL_SOURCE_SHA256="2e8a40b01979afe8be0bbfb3de5dc1c6709fedb46d6c89c10da114ab5fc3d281"
+# https://www.openssl.org/source/
+ENV OPENSSL_PGP_KEY_IDS="0xBA5473A2B0587B07FB27CF2D216094DFD0CB81EF"
+
+ENV OTP_VERSION 27.1.2
+# TODO add PGP checking when the feature will be added to Erlang/OTP's build system
+# https://erlang.org/pipermail/erlang-questions/2019-January/097067.html
+ENV OTP_SOURCE_SHA256="1772e9fa07b2b020ed5911d6ce78b251dfb6ed8509ed7de9d372e96b87251d14"
+
+# install openssl & erlang to a path that isn't auto-checked for libs to prevent accidental use by system packages
+ENV ERLANG_INSTALL_PATH_PREFIX /opt/erlang
+ENV OPENSSL_INSTALL_PATH_PREFIX /opt/openssl
+
+# Install dependencies required to build Erlang/OTP from source
+# https://erlang.org/doc/installation_guide/INSTALL.html
+# dpkg-dev: Required to set up host & build type when compiling Erlang/OTP
+# gnupg: Required to verify OpenSSL artefacts
+# libncurses5-dev: Required for Erlang/OTP new shell & observer_cli - https://github.com/zhongwencool/observer_cli
+RUN set -eux; \
+# /usr/local/src doesn't exist in Alpine by default
+	mkdir -p /usr/local/src; \
+	\
+	OPENSSL_SOURCE_URL="https://github.com/openssl/openssl/releases/download/openssl-$OPENSSL_VERSION/openssl-$OPENSSL_VERSION.tar.gz"; \
+	OPENSSL_PATH="/usr/local/src/openssl-$OPENSSL_VERSION"; \
+	OPENSSL_CONFIG_DIR="$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl"; \
+	\
+# Required by the crypto & ssl Erlang/OTP applications
+	wget --output-document "$OPENSSL_PATH.tar.gz.asc" "$OPENSSL_SOURCE_URL.asc"; \
+	wget --output-document "$OPENSSL_PATH.tar.gz" "$OPENSSL_SOURCE_URL"; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	for key in $OPENSSL_PGP_KEY_IDS; do \
+		gpg --batch --keyserver "$PGP_KEYSERVER" --recv-keys "$key"; \
+	done; \
+	gpg --batch --verify "$OPENSSL_PATH.tar.gz.asc" "$OPENSSL_PATH.tar.gz"; \
+	gpgconf --kill all; \
+	rm -rf "$GNUPGHOME"; \
+	echo "$OPENSSL_SOURCE_SHA256 *$OPENSSL_PATH.tar.gz" | sha256sum -c -; \
+	mkdir -p "$OPENSSL_PATH"; \
+	tar --extract --file "$OPENSSL_PATH.tar.gz" --directory "$OPENSSL_PATH" --strip-components 1; \
+	\
+# Configure OpenSSL for compilation
+	cd "$OPENSSL_PATH"; \
+# OpenSSL's "config" script uses a lot of "uname"-based target detection...
+	apkArch="$(apk --print-arch)"; \
+# https://dl-cdn.alpinelinux.org/alpine/edge/main/
+	case "$apkArch" in \
+# https://github.com/openssl/openssl/blob/openssl-3.1.1/Configurations/10-main.conf#L860 (look for "linux-" and "linux64-" keys)
+		aarch64) opensslMachine='linux-aarch64' ;; \
+# https://github.com/openssl/openssl/blob/openssl-3.1.1/Configurations/10-main.conf#L736-L766
+# https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
+		armhf) opensslMachine='linux-armv4'; opensslExtraConfig='-march=armv6+fp' ;; \
+		armv7) opensslMachine='linux-armv4'; opensslExtraConfig='-march=armv7-a+fp' ;; \
+		ppc64le) opensslMachine='linux-ppc64le' ;; \
+		riscv64) opensslMachine='linux64-riscv64' ;; \
+		s390x) opensslMachine='linux64-s390x' ;; \
+		x86) opensslMachine='linux-x86' ;; \
+		x86_64) opensslMachine='linux-x86_64' ;; \
+		*) echo >&2 "error: unsupported arch: '$apkArch'"; exit 1 ;; \
+	esac; \
+	MACHINE="$opensslMachine" \
+	RELEASE="4.x.y-z" \
+	SYSTEM='Linux' \
+	BUILD='???' \
+	./Configure \
+		"$opensslMachine" \
+		enable-fips \
+		--prefix="$OPENSSL_INSTALL_PATH_PREFIX" \
+		--openssldir="$OPENSSL_CONFIG_DIR" \
+		--libdir="$OPENSSL_INSTALL_PATH_PREFIX/lib" \
+# add -rpath to avoid conflicts between our OpenSSL's "libssl.so" and the libssl package by making sure "$INSTALL_PATH_PREFIX/lib" is searched first (but only for Erlang/OpenSSL to avoid issues with other tools using libssl; https://github.com/docker-library/rabbitmq/issues/364)
+		-Wl,-rpath="$OPENSSL_INSTALL_PATH_PREFIX/lib" \
+		${opensslExtraConfig:-} \
+	; \
+# Compile, install OpenSSL, verify that the command-line works & development headers are present
+	make -j "$(getconf _NPROCESSORS_ONLN)"; \
+	make install_sw install_ssldirs install_fips; \
+# use Alpine's CA certificates
+	rmdir "$OPENSSL_CONFIG_DIR/certs" "$OPENSSL_CONFIG_DIR/private"; \
+	ln -sf /etc/ssl/certs /etc/ssl/private "$OPENSSL_CONFIG_DIR"
+
+# smoke test
+RUN $OPENSSL_INSTALL_PATH_PREFIX/bin/openssl version
+
+FROM openssl-builder as erlang-builder
+
+ARG BUILDKIT_SBOM_SCAN_STAGE=true
+
+RUN set -eux; \
+# /usr/local/src doesn't exist in Alpine by default
+	mkdir -p /usr/local/src; \
+	\
+	OTP_SOURCE_URL="https://github.com/erlang/otp/releases/download/OTP-$OTP_VERSION/otp_src_$OTP_VERSION.tar.gz"; \
+	OTP_PATH="/usr/local/src/otp-$OTP_VERSION"; \
+	\
+# Download, verify & extract OTP_SOURCE
+	mkdir -p "$OTP_PATH"; \
+	wget --output-document "$OTP_PATH.tar.gz" "$OTP_SOURCE_URL"; \
+	echo "$OTP_SOURCE_SHA256 *$OTP_PATH.tar.gz" | sha256sum -c -; \
+	tar --extract --file "$OTP_PATH.tar.gz" --directory "$OTP_PATH" --strip-components 1; \
+	\
+# Configure Erlang/OTP for compilation, disable unused features & applications
+# https://erlang.org/doc/applications.html
+# ERL_TOP is required for Erlang/OTP makefiles to find the absolute path for the installation
+	cd "$OTP_PATH"; \
+	export ERL_TOP="$OTP_PATH"; \
+	export CFLAGS='-g -O2'; \
+# add -rpath to avoid conflicts between our OpenSSL's "libssl.so" and the libssl package by making sure "$INSTALL_PATH_PREFIX/lib" is searched first (but only for Erlang/OpenSSL to avoid issues with other tools using libssl; https://github.com/docker-library/rabbitmq/issues/364)
+	export CFLAGS="$CFLAGS -Wl,-rpath=$OPENSSL_INSTALL_PATH_PREFIX/lib"; \
+	hostArch="$(dpkg-architecture --query DEB_HOST_GNU_TYPE)"; \
+	buildArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
+	dpkgArch="$(dpkg --print-architecture)"; dpkgArch="${dpkgArch##*-}"; \
+# JIT is only supported on amd64 + arm64; https://github.com/erlang/otp/blob/OTP-25.3.2.2/erts/configure#L24306-L24347
+	jitFlag=; \
+	case "$dpkgArch" in \
+		amd64 | arm64) jitFlag='--enable-jit' ;; \
+	esac; \
+	./configure \
+		--prefix="$ERLANG_INSTALL_PATH_PREFIX" \
+		--host="$hostArch" \
+		--build="$buildArch" \
+		--disable-hipe \
+		--disable-sctp \
+		--disable-silent-rules \
+		--enable-builtin-zlib \
+		--enable-clock-gettime \
+		--enable-hybrid-heap \
+		--enable-kernel-poll \
+		--enable-smp-support \
+		--enable-threads \
+		--with-microstate-accounting=extra \
+		--with-ssl="$OPENSSL_INSTALL_PATH_PREFIX" \
+		--without-common_test \
+		--without-debugger \
+		--without-dialyzer \
+		--without-diameter \
+		--without-edoc \
+		--without-erl_docgen \
+		--without-et \
+		--without-eunit \
+		--without-ftp \
+		--without-hipe \
+		--without-jinterface \
+		--without-megaco \
+		--without-observer \
+		--without-odbc \
+		--without-reltool \
+		--without-ssh \
+		--without-tftp \
+		--without-wx \
+		$jitFlag \
+	; \
+# Compile & install Erlang/OTP
+	make -j "$(getconf _NPROCESSORS_ONLN)" GEN_OPT_FLGS="-O2 -fno-strict-aliasing"; \
+	make install; \
+	\
+# Remove unnecessary files
+	find "$ERLANG_INSTALL_PATH_PREFIX/lib/erlang" -type d -name examples -exec rm -rf '{}' +; \
+	find "$ERLANG_INSTALL_PATH_PREFIX/lib/erlang" -type d -name src -exec rm -rf '{}' +; \
+	find "$ERLANG_INSTALL_PATH_PREFIX/lib/erlang" -type d -name include -exec rm -rf '{}' +
+
+# Check that Erlang/OTP crypto & ssl were compiled against OpenSSL correctly
+ENV PATH $ERLANG_INSTALL_PATH_PREFIX/bin:$PATH
+RUN find $ERLANG_INSTALL_PATH_PREFIX -type f -name 'crypto.so' -exec ldd {} \; | awk '/libcrypto\.so/ { if (!index($3,ENVIRON["OPENSSL_INSTALL_PATH_PREFIX"])) exit 1 }'
+RUN erl -noshell -eval 'ok = crypto:start(), ok = io:format("~p~n~n~p~n~n", [crypto:supports(), ssl:versions()]), init:stop().'
+
+FROM alpine:3.20
+
+# OPENSSL/ERLANG_INSTALL_PATH_PREFIX are defined in a different stage, so define them again
+ENV ERLANG_INSTALL_PATH_PREFIX /opt/erlang
+ENV OPENSSL_INSTALL_PATH_PREFIX /opt/openssl
+
+COPY --from=erlang-builder $ERLANG_INSTALL_PATH_PREFIX $ERLANG_INSTALL_PATH_PREFIX
+COPY --from=openssl-builder $OPENSSL_INSTALL_PATH_PREFIX $OPENSSL_INSTALL_PATH_PREFIX
+
+ENV PATH $ERLANG_INSTALL_PATH_PREFIX/bin:$OPENSSL_INSTALL_PATH_PREFIX/bin:$PATH
+
+ENV RABBITMQ_DATA_DIR /var/lib/rabbitmq
+
+RUN set -eux; \
+# Configure OpenSSL to use system certs
+	ln -vsf /etc/ssl/certs /etc/ssl/private "$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl"; \
+	\
+# Ensure run-time dependencies are installed
+	runDeps="$( \
+		scanelf --needed --nobanner --format '%n#p' --recursive $ERLANG_INSTALL_PATH_PREFIX $OPENSSL_INSTALL_PATH_PREFIX \
+			| tr ',' '\n' \
+			| sort -u \
+			| grep -v '^$\|lib\(crypto\|ssl\)' \
+			| awk 'system("test -e /usr/local/lib/" $1) == 0 { next } { print "so:" $1 }' \
+	)"; \
+	apk add --no-cache --virtual .otp-run-deps $runDeps; \
+	\
+# Check that OpenSSL still works after copying from previous builder
+	sed -i.ORIG -e "/\.include.*fips/ s!.*!.include $OPENSSL_INSTALL_PATH_PREFIX/etc/ssl/fipsmodule.cnf!" \
+		-e '/# fips =/s/.*/fips = fips_sect/' "$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl/openssl.cnf"; \
+	sed -i.ORIG -e '/^activate/s/^/#/' "$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl/fipsmodule.cnf"; \
+	[ "$(command -v openssl)" = "$OPENSSL_INSTALL_PATH_PREFIX/bin/openssl" ]; \
+	openssl version; \
+	openssl version -d; \
+	\
+# Check that Erlang/OTP crypto & ssl were compiled against OpenSSL correctly
+	erl -noshell -eval 'ok = crypto:start(), ok = io:format("~p~n~n~p~n~n", [crypto:supports(), ssl:versions()]), init:stop().'; \
+	\
+# Create rabbitmq system user & group, fix permissions & allow root user to connect to the RabbitMQ Erlang VM
+	addgroup -g 101 -S rabbitmq; \
+	adduser -u 100 -S -h "$RABBITMQ_DATA_DIR" -G rabbitmq rabbitmq; \
+	mkdir -p "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
+	chown -fR rabbitmq:rabbitmq "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
+	chmod 1777 "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
+	ln -sf "$RABBITMQ_DATA_DIR/.erlang.cookie" /root/.erlang.cookie; \
+	\
+	apk add --no-cache \
+# grab su-exec for easy step-down from root
+		'su-exec>=0.2' \
+# bash for docker-entrypoint.sh
+		bash \
+# "ps" for "rabbitmqctl wait" (https://github.com/docker-library/rabbitmq/issues/162)
+		procps \
+# Bring in tzdata so users could set the timezones through the environment
+		tzdata
+
+# Use the latest stable RabbitMQ release (https://www.rabbitmq.com/download.html)
+ENV RABBITMQ_VERSION 4.1.0-beta.1
+# https://www.rabbitmq.com/signatures.html#importing-gpg
+ENV RABBITMQ_PGP_KEY_ID 0x0A9AF2115F4687BD29803A206B73A36E6026DFCA
+ENV RABBITMQ_HOME /opt/rabbitmq
+
+# Add RabbitMQ to PATH
+ENV PATH $RABBITMQ_HOME/sbin:$PATH
+
+# Install RabbitMQ
+RUN set -eux; \
+# /usr/local/src doesn't exist in Alpine by default
+	mkdir -p /usr/local/src; \
+	\
+	apk add --no-cache --virtual .build-deps \
+		gnupg \
+		xz \
+	; \
+	\
+	RABBITMQ_SOURCE_URL="https://github.com/rabbitmq/rabbitmq-server/releases/download/v$RABBITMQ_VERSION/rabbitmq-server-generic-unix-$RABBITMQ_VERSION.tar.xz"; \
+	RABBITMQ_PATH="/usr/local/src/rabbitmq-$RABBITMQ_VERSION"; \
+	\
+	wget --output-document "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_SOURCE_URL.asc"; \
+	wget --output-document "$RABBITMQ_PATH.tar.xz" "$RABBITMQ_SOURCE_URL"; \
+	\
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys "$RABBITMQ_PGP_KEY_ID"; \
+	gpg --batch --verify "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_PATH.tar.xz"; \
+	gpgconf --kill all; \
+	rm -rf "$GNUPGHOME"; \
+	\
+	mkdir -p "$RABBITMQ_HOME"; \
+	tar --extract --file "$RABBITMQ_PATH.tar.xz" --directory "$RABBITMQ_HOME" --strip-components 1; \
+	rm -rf "$RABBITMQ_PATH"*; \
+# Do not default SYS_PREFIX to RABBITMQ_HOME, leave it empty
+	grep -qE '^SYS_PREFIX=\$\{RABBITMQ_HOME\}$' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
+	sed -i 's/^SYS_PREFIX=.*$/SYS_PREFIX=/' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
+	grep -qE '^SYS_PREFIX=$' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
+	chown -R rabbitmq:rabbitmq "$RABBITMQ_HOME"; \
+	\
+	apk del --no-network .build-deps; \
+	\
+# verify assumption of no stale cookies
+	[ ! -e "$RABBITMQ_DATA_DIR/.erlang.cookie" ]; \
+# Ensure RabbitMQ was installed correctly by running a few commands that do not depend on a running server, as the rabbitmq user
+# If they all succeed, it's safe to assume that things have been set up correctly
+	su-exec rabbitmq rabbitmqctl help; \
+	su-exec rabbitmq rabbitmqctl list_ciphers; \
+	su-exec rabbitmq rabbitmq-plugins list; \
+# no stale cookies
+	rm "$RABBITMQ_DATA_DIR/.erlang.cookie"
+
+# Enable Prometheus-style metrics by default (https://github.com/docker-library/rabbitmq/issues/419)
+RUN su-exec rabbitmq rabbitmq-plugins enable --offline rabbitmq_prometheus
+
+# Added for backwards compatibility - users can simply COPY custom plugins to /plugins
+RUN ln -sf /opt/rabbitmq/plugins /plugins
+
+# set home so that any `--user` knows where to put the erlang cookie
+ENV HOME $RABBITMQ_DATA_DIR
+# Hint that the data (a.k.a. home dir) dir should be separate volume
+VOLUME $RABBITMQ_DATA_DIR
+
+# warning: the VM is running with native name encoding of latin1 which may cause Elixir to malfunction as it expects utf8. Please ensure your locale is set to UTF-8 (which can be verified by running "locale" in your shell)
+# Setting all environment variables that control language preferences, behaviour differs - https://www.gnu.org/software/gettext/manual/html_node/The-LANGUAGE-variable.html#The-LANGUAGE-variable
+# https://docs.docker.com/samples/library/ubuntu/#locales
+ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
+
+COPY --chown=rabbitmq:rabbitmq 10-defaults.conf 20-management_agent.disable_metrics_collector.conf /etc/rabbitmq/conf.d/
+COPY docker-entrypoint.sh /usr/local/bin/
+ENTRYPOINT ["docker-entrypoint.sh"]
+
+EXPOSE 4369 5671 5672 15691 15692 25672
+CMD ["rabbitmq-server"]
diff --git a/4.1-rc/alpine/docker-entrypoint.sh b/4.1-rc/alpine/docker-entrypoint.sh
new file mode 100755
index 00000000..7ecad434
--- /dev/null
+++ b/4.1-rc/alpine/docker-entrypoint.sh
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# allow the container to be started with `--user`
+if [[ "$1" == rabbitmq* ]] && [ "$(id -u)" = '0' ]; then
+	if [ "$1" = 'rabbitmq-server' ]; then
+		find /var/lib/rabbitmq \! -user rabbitmq -exec chown rabbitmq '{}' +
+	fi
+
+	exec su-exec rabbitmq "$BASH_SOURCE" "$@"
+fi
+
+deprecatedEnvVars=(
+	RABBITMQ_DEFAULT_PASS_FILE
+	RABBITMQ_DEFAULT_USER_FILE
+	RABBITMQ_MANAGEMENT_SSL_CACERTFILE
+	RABBITMQ_MANAGEMENT_SSL_CERTFILE
+	RABBITMQ_MANAGEMENT_SSL_DEPTH
+	RABBITMQ_MANAGEMENT_SSL_FAIL_IF_NO_PEER_CERT
+	RABBITMQ_MANAGEMENT_SSL_KEYFILE
+	RABBITMQ_MANAGEMENT_SSL_VERIFY
+	RABBITMQ_SSL_CACERTFILE
+	RABBITMQ_SSL_CERTFILE
+	RABBITMQ_SSL_DEPTH
+	RABBITMQ_SSL_FAIL_IF_NO_PEER_CERT
+	RABBITMQ_SSL_KEYFILE
+	RABBITMQ_SSL_VERIFY
+	RABBITMQ_VM_MEMORY_HIGH_WATERMARK
+)
+hasOldEnv=
+for old in "${deprecatedEnvVars[@]}"; do
+	if [ -n "${!old:-}" ]; then
+		echo >&2 "error: $old is set but deprecated"
+		hasOldEnv=1
+	fi
+done
+if [ -n "$hasOldEnv" ]; then
+	echo >&2 'error: deprecated environment variables detected'
+	echo >&2
+	echo >&2 'Please use a configuration file instead; visit https://www.rabbitmq.com/configure.html to learn more'
+	echo >&2
+	exit 1
+fi
+
+# if long and short hostnames are not the same, use long hostnames
+if [ -z "${RABBITMQ_USE_LONGNAME:-}" ] && [ "$(hostname)" != "$(hostname -s)" ]; then
+	: "${RABBITMQ_USE_LONGNAME:=true}"
+fi
+
+exec "$@"
diff --git a/4.1-rc/alpine/management/Dockerfile b/4.1-rc/alpine/management/Dockerfile
new file mode 100644
index 00000000..a0381ac2
--- /dev/null
+++ b/4.1-rc/alpine/management/Dockerfile
@@ -0,0 +1,21 @@
+#
+# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
+#
+# PLEASE DO NOT EDIT IT DIRECTLY.
+#
+
+FROM rabbitmq:4.1-rc-alpine
+
+RUN set -eux; \
+	rabbitmq-plugins enable --offline rabbitmq_management; \
+# make sure the metrics collector is re-enabled (disabled in the base image for Prometheus-style metrics by default)
+	rm -f /etc/rabbitmq/conf.d/20-management_agent.disable_metrics_collector.conf; \
+# grab "rabbitmqadmin" from inside the "rabbitmq_management-X.Y.Z" plugin folder
+# see https://github.com/docker-library/rabbitmq/issues/207
+	cp /plugins/rabbitmq_management-*/priv/www/cli/rabbitmqadmin /usr/local/bin/rabbitmqadmin; \
+	[ -s /usr/local/bin/rabbitmqadmin ]; \
+	chmod +x /usr/local/bin/rabbitmqadmin; \
+	apk add --no-cache python3; \
+	rabbitmqadmin --version
+
+EXPOSE 15671 15672
diff --git a/4.1-rc/ubuntu/10-defaults.conf b/4.1-rc/ubuntu/10-defaults.conf
new file mode 100644
index 00000000..27973c74
--- /dev/null
+++ b/4.1-rc/ubuntu/10-defaults.conf
@@ -0,0 +1,12 @@
+## DEFAULT SETTINGS ARE NOT MEANT TO BE TAKEN STRAIGHT INTO PRODUCTION
+## see https://www.rabbitmq.com/configure.html for further information
+## on configuring RabbitMQ
+
+## allow access to the guest user from anywhere on the network
+## https://www.rabbitmq.com/access-control.html#loopback-users
+## https://www.rabbitmq.com/production-checklist.html#users
+loopback_users.guest = false
+
+## Send all logs to stdout/TTY. Necessary to see logs when running via
+## a container
+log.console = true
diff --git a/4.1-rc/ubuntu/20-management_agent.disable_metrics_collector.conf b/4.1-rc/ubuntu/20-management_agent.disable_metrics_collector.conf
new file mode 100644
index 00000000..6eb7a86c
--- /dev/null
+++ b/4.1-rc/ubuntu/20-management_agent.disable_metrics_collector.conf
@@ -0,0 +1,2 @@
+# Enable Prometheus-style metrics by default (https://github.com/docker-library/rabbitmq/issues/419)
+management_agent.disable_metrics_collector = true
diff --git a/4.1-rc/ubuntu/Dockerfile b/4.1-rc/ubuntu/Dockerfile
new file mode 100644
index 00000000..9fc08814
--- /dev/null
+++ b/4.1-rc/ubuntu/Dockerfile
@@ -0,0 +1,318 @@
+#
+# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
+#
+# PLEASE DO NOT EDIT IT DIRECTLY.
+#
+
+# The official Canonical Ubuntu Focal image is ideal from a security perspective,
+# especially for the enterprises that we, the RabbitMQ team, have to deal with
+FROM ubuntu:24.04 as build-base
+
+ARG BUILDKIT_SBOM_SCAN_STAGE=true
+
+RUN set -eux; \
+	apt-get update; \
+	apt-get install -y --no-install-recommends \
+		build-essential \
+		ca-certificates \
+		gnupg \
+		libncurses5-dev \
+		wget
+
+FROM build-base as openssl-builder
+
+ARG BUILDKIT_SBOM_SCAN_STAGE=true
+
+# Default to a PGP keyserver that pgp-happy-eyeballs recognizes, but allow for substitutions locally
+ARG PGP_KEYSERVER=keyserver.ubuntu.com
+# If you are building this image locally and are getting `gpg: keyserver receive failed: No data` errors,
+# run the build with a different PGP_KEYSERVER, e.g. docker build --tag rabbitmq:4.1-rc --build-arg PGP_KEYSERVER=pgpkeys.eu 4.1-rc/ubuntu
+# For context, see https://github.com/docker-library/official-images/issues/4252
+
+ENV OPENSSL_VERSION 3.3.2
+ENV OPENSSL_SOURCE_SHA256="2e8a40b01979afe8be0bbfb3de5dc1c6709fedb46d6c89c10da114ab5fc3d281"
+# https://www.openssl.org/source/
+ENV OPENSSL_PGP_KEY_IDS="0xBA5473A2B0587B07FB27CF2D216094DFD0CB81EF"
+
+ENV OTP_VERSION 27.1.2
+# TODO add PGP checking when the feature will be added to Erlang/OTP's build system
+# https://erlang.org/pipermail/erlang-questions/2019-January/097067.html
+ENV OTP_SOURCE_SHA256="1772e9fa07b2b020ed5911d6ce78b251dfb6ed8509ed7de9d372e96b87251d14"
+
+# install openssl & erlang to a path that isn't auto-checked for libs to prevent accidental use by system packages
+ENV ERLANG_INSTALL_PATH_PREFIX /opt/erlang
+ENV OPENSSL_INSTALL_PATH_PREFIX /opt/openssl
+
+# Install dependencies required to build Erlang/OTP from source
+# https://erlang.org/doc/installation_guide/INSTALL.html
+# dpkg-dev: Required to set up host & build type when compiling Erlang/OTP
+# gnupg: Required to verify OpenSSL artefacts
+# libncurses5-dev: Required for Erlang/OTP new shell & observer_cli - https://github.com/zhongwencool/observer_cli
+RUN set -eux; \
+	OPENSSL_SOURCE_URL="https://github.com/openssl/openssl/releases/download/openssl-$OPENSSL_VERSION/openssl-$OPENSSL_VERSION.tar.gz"; \
+	OPENSSL_PATH="/usr/local/src/openssl-$OPENSSL_VERSION"; \
+	OPENSSL_CONFIG_DIR="$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl"; \
+	\
+# Required by the crypto & ssl Erlang/OTP applications
+	wget --progress dot:giga --output-document "$OPENSSL_PATH.tar.gz.asc" "$OPENSSL_SOURCE_URL.asc"; \
+	wget --progress dot:giga --output-document "$OPENSSL_PATH.tar.gz" "$OPENSSL_SOURCE_URL"; \
+	export GNUPGHOME="$(mktemp -d)"; \
+	for key in $OPENSSL_PGP_KEY_IDS; do \
+		gpg --batch --keyserver "$PGP_KEYSERVER" --recv-keys "$key"; \
+	done; \
+	gpg --batch --verify "$OPENSSL_PATH.tar.gz.asc" "$OPENSSL_PATH.tar.gz"; \
+	gpgconf --kill all; \
+	rm -rf "$GNUPGHOME"; \
+	echo "$OPENSSL_SOURCE_SHA256 *$OPENSSL_PATH.tar.gz" | sha256sum --check --strict -; \
+	mkdir -p "$OPENSSL_PATH"; \
+	tar --extract --file "$OPENSSL_PATH.tar.gz" --directory "$OPENSSL_PATH" --strip-components 1; \
+	\
+# Configure OpenSSL for compilation
+	cd "$OPENSSL_PATH"; \
+# without specifying "--libdir", Erlang will fail during "crypto:supports()" looking for a "pthread_atfork" function that doesn't exist (but only on arm32v7/armhf??)
+# OpenSSL's "config" script uses a lot of "uname"-based target detection...
+	dpkgArch="$(dpkg --print-architecture)"; dpkgArch="${dpkgArch##*-}"; \
+# https://deb.debian.org/debian/dists/unstable/main/
+	case "$dpkgArch" in \
+# https://github.com/openssl/openssl/blob/openssl-3.1.1/Configurations/10-main.conf#L860 (look for "linux-" and "linux64-" keys)
+		amd64) opensslMachine='linux-x86_64' ;; \
+		arm64) opensslMachine='linux-aarch64' ;; \
+# https://github.com/openssl/openssl/blob/openssl-3.1.1/Configurations/10-main.conf#L736-L766
+# https://wiki.debian.org/ArchitectureSpecificsMemo#Architecture_baselines
+# https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
+		armhf) opensslMachine='linux-armv4'; opensslExtraConfig='-march=armv7-a+fp' ;; \
+		i386) opensslMachine='linux-x86' ;; \
+		ppc64el) opensslMachine='linux-ppc64le' ;; \
+		riscv64) opensslMachine='linux64-riscv64' ;; \
+		s390x) opensslMachine='linux64-s390x' ;; \
+		*) echo >&2 "error: unsupported arch: '$apkArch'"; exit 1 ;; \
+	esac; \
+	MACHINE="$opensslMachine" \
+	RELEASE="4.x.y-z" \
+	SYSTEM='Linux' \
+	BUILD='???' \
+	./Configure \
+		"$opensslMachine" \
+		enable-fips \
+		--prefix="$OPENSSL_INSTALL_PATH_PREFIX" \
+		--openssldir="$OPENSSL_CONFIG_DIR" \
+		--libdir="$OPENSSL_INSTALL_PATH_PREFIX/lib" \
+# add -rpath to avoid conflicts between our OpenSSL's "libssl.so" and the libssl package by making sure "$INSTALL_PATH_PREFIX/lib" is searched first (but only for Erlang/OpenSSL to avoid issues with other tools using libssl; https://github.com/docker-library/rabbitmq/issues/364)
+		-Wl,-rpath="$OPENSSL_INSTALL_PATH_PREFIX/lib" \
+		${opensslExtraConfig:-} \
+	; \
+# Compile, install OpenSSL, verify that the command-line works & development headers are present
+	make -j "$(getconf _NPROCESSORS_ONLN)"; \
+	make install_sw install_ssldirs install_fips; \
+	ldconfig; \
+# use Debian's CA certificates
+	rmdir "$OPENSSL_CONFIG_DIR/certs" "$OPENSSL_CONFIG_DIR/private"; \
+	ln -sf /etc/ssl/certs /etc/ssl/private "$OPENSSL_CONFIG_DIR"
+
+# smoke test
+RUN $OPENSSL_INSTALL_PATH_PREFIX/bin/openssl version
+
+FROM openssl-builder as erlang-builder
+
+ARG BUILDKIT_SBOM_SCAN_STAGE=true
+
+RUN set -eux; \
+	OTP_SOURCE_URL="https://github.com/erlang/otp/releases/download/OTP-$OTP_VERSION/otp_src_$OTP_VERSION.tar.gz"; \
+	OTP_PATH="/usr/local/src/otp-$OTP_VERSION"; \
+	\
+# Download, verify & extract OTP_SOURCE
+	mkdir -p "$OTP_PATH"; \
+	wget --progress dot:giga --output-document "$OTP_PATH.tar.gz" "$OTP_SOURCE_URL"; \
+	echo "$OTP_SOURCE_SHA256 *$OTP_PATH.tar.gz" | sha256sum --check --strict -; \
+	tar --extract --file "$OTP_PATH.tar.gz" --directory "$OTP_PATH" --strip-components 1; \
+	\
+# Configure Erlang/OTP for compilation, disable unused features & applications
+# https://erlang.org/doc/applications.html
+# ERL_TOP is required for Erlang/OTP makefiles to find the absolute path for the installation
+	cd "$OTP_PATH"; \
+	export ERL_TOP="$OTP_PATH"; \
+	CFLAGS="$(dpkg-buildflags --get CFLAGS)"; export CFLAGS; \
+# add -rpath to avoid conflicts between our OpenSSL's "libssl.so" and the libssl package by making sure "$OPENSSL_INSTALL_PATH_PREFIX/lib" is searched first (but only for Erlang/OpenSSL to avoid issues with other tools using libssl; https://github.com/docker-library/rabbitmq/issues/364)
+	export CFLAGS="$CFLAGS -Wl,-rpath=$OPENSSL_INSTALL_PATH_PREFIX/lib"; \
+	hostArch="$(dpkg-architecture --query DEB_HOST_GNU_TYPE)"; \
+	buildArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
+	dpkgArch="$(dpkg --print-architecture)"; dpkgArch="${dpkgArch##*-}"; \
+# JIT is only supported on amd64 + arm64; https://github.com/erlang/otp/blob/OTP-25.3.2.2/erts/configure#L24306-L24347
+	jitFlag=; \
+	case "$dpkgArch" in \
+		amd64 | arm64) jitFlag='--enable-jit' ;; \
+	esac; \
+	./configure \
+		--prefix="$ERLANG_INSTALL_PATH_PREFIX" \
+		--host="$hostArch" \
+		--build="$buildArch" \
+		--disable-hipe \
+		--disable-sctp \
+		--disable-silent-rules \
+		--enable-builtin-zlib \
+		--enable-clock-gettime \
+		--enable-hybrid-heap \
+		--enable-kernel-poll \
+		--enable-smp-support \
+		--enable-threads \
+		--with-microstate-accounting=extra \
+		--with-ssl="$OPENSSL_INSTALL_PATH_PREFIX" \
+		--without-common_test \
+		--without-debugger \
+		--without-dialyzer \
+		--without-diameter \
+		--without-edoc \
+		--without-erl_docgen \
+		--without-et \
+		--without-eunit \
+		--without-ftp \
+		--without-hipe \
+		--without-jinterface \
+		--without-megaco \
+		--without-observer \
+		--without-odbc \
+		--without-reltool \
+		--without-ssh \
+		--without-tftp \
+		--without-wx \
+		$jitFlag \
+	; \
+	\
+# Compile & install Erlang/OTP
+	make -j "$(getconf _NPROCESSORS_ONLN)" GEN_OPT_FLGS="-O2 -fno-strict-aliasing"; \
+	make install; \
+	\
+# Remove unnecessary files
+	find "$ERLANG_INSTALL_PATH_PREFIX/lib/erlang" -type d -name examples -exec rm -rf '{}' +; \
+	find "$ERLANG_INSTALL_PATH_PREFIX/lib/erlang" -type d -name src -exec rm -rf '{}' +; \
+	find "$ERLANG_INSTALL_PATH_PREFIX/lib/erlang" -type d -name include -exec rm -rf '{}' +
+
+# Check that Erlang/OTP crypto & ssl were compiled against OpenSSL correctly
+ENV PATH $ERLANG_INSTALL_PATH_PREFIX/bin:$PATH
+RUN find $ERLANG_INSTALL_PATH_PREFIX -type f -name 'crypto.so' -exec ldd {} \; | awk '/libcrypto\.so/ { if (!index($3,ENVIRON["OPENSSL_INSTALL_PATH_PREFIX"])) exit 1 }'
+RUN erl -noshell -eval 'ok = crypto:start(), ok = io:format("~p~n~n~p~n~n", [crypto:supports(), ssl:versions()]), init:stop().'
+
+FROM ubuntu:24.04
+
+# OPENSSL/ERLANG_INSTALL_PATH_PREFIX are defined in a different stage, so define them again
+ENV ERLANG_INSTALL_PATH_PREFIX /opt/erlang
+ENV OPENSSL_INSTALL_PATH_PREFIX /opt/openssl
+COPY --from=erlang-builder $ERLANG_INSTALL_PATH_PREFIX $ERLANG_INSTALL_PATH_PREFIX
+COPY --from=openssl-builder $OPENSSL_INSTALL_PATH_PREFIX $OPENSSL_INSTALL_PATH_PREFIX
+
+ENV PATH $ERLANG_INSTALL_PATH_PREFIX/bin:$OPENSSL_INSTALL_PATH_PREFIX/bin:$PATH
+
+ENV RABBITMQ_DATA_DIR /var/lib/rabbitmq
+
+RUN set -eux; \
+# Configure OpenSSL to use system certs
+	ln -vsf /etc/ssl/certs /etc/ssl/private "$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl"; \
+	\
+# Check that OpenSSL still works after copying from previous builder
+	ldconfig; \
+	sed -i.ORIG -e "/\.include.*fips/ s!.*!.include $OPENSSL_INSTALL_PATH_PREFIX/etc/ssl/fipsmodule.cnf!" \
+		-e '/# fips =/s/.*/fips = fips_sect/' "$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl/openssl.cnf"; \
+	sed -i.ORIG -e '/^activate/s/^/#/' "$OPENSSL_INSTALL_PATH_PREFIX/etc/ssl/fipsmodule.cnf"; \
+	[ "$(command -v openssl)" = "$OPENSSL_INSTALL_PATH_PREFIX/bin/openssl" ]; \
+	openssl version; \
+	openssl version -d; \
+	\
+# Check that Erlang/OTP crypto & ssl were compiled against OpenSSL correctly
+	erl -noshell -eval 'ok = crypto:start(), ok = io:format("~p~n~n~p~n~n", [crypto:supports(), ssl:versions()]), init:stop().'; \
+	\
+# Create rabbitmq system user & group, fix permissions & allow root user to connect to the RabbitMQ Erlang VM
+	groupadd --gid 999 --system rabbitmq; \
+	useradd --uid 999 --system --home-dir "$RABBITMQ_DATA_DIR" --gid rabbitmq rabbitmq; \
+	mkdir -p "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
+	chown -fR rabbitmq:rabbitmq "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
+	chmod 1777 "$RABBITMQ_DATA_DIR" /etc/rabbitmq /etc/rabbitmq/conf.d /tmp/rabbitmq-ssl /var/log/rabbitmq; \
+	ln -sf "$RABBITMQ_DATA_DIR/.erlang.cookie" /root/.erlang.cookie
+
+# Use the latest stable RabbitMQ release (https://www.rabbitmq.com/download.html)
+ENV RABBITMQ_VERSION 4.1.0-beta.1
+# https://www.rabbitmq.com/signatures.html#importing-gpg
+ENV RABBITMQ_PGP_KEY_ID 0x0A9AF2115F4687BD29803A206B73A36E6026DFCA
+ENV RABBITMQ_HOME /opt/rabbitmq
+
+# Add RabbitMQ to PATH
+ENV PATH $RABBITMQ_HOME/sbin:$PATH
+
+# Install RabbitMQ
+RUN set -eux; \
+	export DEBIAN_FRONTEND=noninteractive; \
+	apt-get update; \
+	apt-get install --yes --no-install-recommends \
+		ca-certificates \
+# grab gosu for easy step-down from root
+		gosu \
+# Bring in tzdata so users could set the timezones through the environment
+		tzdata \
+	; \
+# verify that the "gosu" binary works
+	gosu nobody true; \
+	\
+	savedAptMark="$(apt-mark showmanual)"; \
+	apt-get install --yes --no-install-recommends \
+		gnupg \
+		wget \
+		xz-utils \
+	; \
+	rm -rf /var/lib/apt/lists/*; \
+	\
+	RABBITMQ_SOURCE_URL="https://github.com/rabbitmq/rabbitmq-server/releases/download/v$RABBITMQ_VERSION/rabbitmq-server-generic-unix-$RABBITMQ_VERSION.tar.xz"; \
+	RABBITMQ_PATH="/usr/local/src/rabbitmq-$RABBITMQ_VERSION"; \
+	\
+	wget --progress dot:giga --output-document "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_SOURCE_URL.asc"; \
+	wget --progress dot:giga --output-document "$RABBITMQ_PATH.tar.xz" "$RABBITMQ_SOURCE_URL"; \
+	\
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --batch --keyserver hkps://keys.openpgp.org --recv-keys "$RABBITMQ_PGP_KEY_ID"; \
+	gpg --batch --verify "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_PATH.tar.xz"; \
+	gpgconf --kill all; \
+	rm -rf "$GNUPGHOME"; \
+	\
+	mkdir -p "$RABBITMQ_HOME"; \
+	tar --extract --file "$RABBITMQ_PATH.tar.xz" --directory "$RABBITMQ_HOME" --strip-components 1; \
+	rm -rf "$RABBITMQ_PATH"*; \
+# Do not default SYS_PREFIX to RABBITMQ_HOME, leave it empty
+	grep -qE '^SYS_PREFIX=\$\{RABBITMQ_HOME\}$' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
+	sed -i 's/^SYS_PREFIX=.*$/SYS_PREFIX=/' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
+	grep -qE '^SYS_PREFIX=$' "$RABBITMQ_HOME/sbin/rabbitmq-defaults"; \
+	chown -R rabbitmq:rabbitmq "$RABBITMQ_HOME"; \
+	\
+	apt-mark auto '.*' > /dev/null; \
+	apt-mark manual $savedAptMark; \
+	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
+	\
+# verify assumption of no stale cookies
+	[ ! -e "$RABBITMQ_DATA_DIR/.erlang.cookie" ]; \
+# Ensure RabbitMQ was installed correctly by running a few commands that do not depend on a running server, as the rabbitmq user
+# If they all succeed, it's safe to assume that things have been set up correctly
+	gosu rabbitmq rabbitmqctl help; \
+	gosu rabbitmq rabbitmqctl list_ciphers; \
+	gosu rabbitmq rabbitmq-plugins list; \
+# no stale cookies
+	rm "$RABBITMQ_DATA_DIR/.erlang.cookie"
+
+# Enable Prometheus-style metrics by default (https://github.com/docker-library/rabbitmq/issues/419)
+RUN gosu rabbitmq rabbitmq-plugins enable --offline rabbitmq_prometheus
+
+# Added for backwards compatibility - users can simply COPY custom plugins to /plugins
+RUN ln -sf /opt/rabbitmq/plugins /plugins
+
+# set home so that any `--user` knows where to put the erlang cookie
+ENV HOME $RABBITMQ_DATA_DIR
+# Hint that the data (a.k.a. home dir) dir should be separate volume
+VOLUME $RABBITMQ_DATA_DIR
+
+# warning: the VM is running with native name encoding of latin1 which may cause Elixir to malfunction as it expects utf8. Please ensure your locale is set to UTF-8 (which can be verified by running "locale" in your shell)
+# Setting all environment variables that control language preferences, behaviour differs - https://www.gnu.org/software/gettext/manual/html_node/The-LANGUAGE-variable.html#The-LANGUAGE-variable
+# https://docs.docker.com/samples/library/ubuntu/#locales
+ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
+
+COPY --chown=rabbitmq:rabbitmq 10-defaults.conf 20-management_agent.disable_metrics_collector.conf /etc/rabbitmq/conf.d/
+COPY docker-entrypoint.sh /usr/local/bin/
+ENTRYPOINT ["docker-entrypoint.sh"]
+
+EXPOSE 4369 5671 5672 15691 15692 25672
+CMD ["rabbitmq-server"]
diff --git a/4.1-rc/ubuntu/docker-entrypoint.sh b/4.1-rc/ubuntu/docker-entrypoint.sh
new file mode 100755
index 00000000..c1c55b6d
--- /dev/null
+++ b/4.1-rc/ubuntu/docker-entrypoint.sh
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# allow the container to be started with `--user`
+if [[ "$1" == rabbitmq* ]] && [ "$(id -u)" = '0' ]; then
+	if [ "$1" = 'rabbitmq-server' ]; then
+		find /var/lib/rabbitmq \! -user rabbitmq -exec chown rabbitmq '{}' +
+	fi
+
+	exec gosu rabbitmq "$BASH_SOURCE" "$@"
+fi
+
+deprecatedEnvVars=(
+	RABBITMQ_DEFAULT_PASS_FILE
+	RABBITMQ_DEFAULT_USER_FILE
+	RABBITMQ_MANAGEMENT_SSL_CACERTFILE
+	RABBITMQ_MANAGEMENT_SSL_CERTFILE
+	RABBITMQ_MANAGEMENT_SSL_DEPTH
+	RABBITMQ_MANAGEMENT_SSL_FAIL_IF_NO_PEER_CERT
+	RABBITMQ_MANAGEMENT_SSL_KEYFILE
+	RABBITMQ_MANAGEMENT_SSL_VERIFY
+	RABBITMQ_SSL_CACERTFILE
+	RABBITMQ_SSL_CERTFILE
+	RABBITMQ_SSL_DEPTH
+	RABBITMQ_SSL_FAIL_IF_NO_PEER_CERT
+	RABBITMQ_SSL_KEYFILE
+	RABBITMQ_SSL_VERIFY
+	RABBITMQ_VM_MEMORY_HIGH_WATERMARK
+)
+hasOldEnv=
+for old in "${deprecatedEnvVars[@]}"; do
+	if [ -n "${!old:-}" ]; then
+		echo >&2 "error: $old is set but deprecated"
+		hasOldEnv=1
+	fi
+done
+if [ -n "$hasOldEnv" ]; then
+	echo >&2 'error: deprecated environment variables detected'
+	echo >&2
+	echo >&2 'Please use a configuration file instead; visit https://www.rabbitmq.com/configure.html to learn more'
+	echo >&2
+	exit 1
+fi
+
+# if long and short hostnames are not the same, use long hostnames
+if [ -z "${RABBITMQ_USE_LONGNAME:-}" ] && [ "$(hostname)" != "$(hostname -s)" ]; then
+	: "${RABBITMQ_USE_LONGNAME:=true}"
+fi
+
+exec "$@"
diff --git a/4.1-rc/ubuntu/management/Dockerfile b/4.1-rc/ubuntu/management/Dockerfile
new file mode 100644
index 00000000..3c294492
--- /dev/null
+++ b/4.1-rc/ubuntu/management/Dockerfile
@@ -0,0 +1,23 @@
+#
+# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
+#
+# PLEASE DO NOT EDIT IT DIRECTLY.
+#
+
+FROM rabbitmq:4.1-rc
+
+RUN set -eux; \
+	rabbitmq-plugins enable --offline rabbitmq_management; \
+# make sure the metrics collector is re-enabled (disabled in the base image for Prometheus-style metrics by default)
+	rm -f /etc/rabbitmq/conf.d/20-management_agent.disable_metrics_collector.conf; \
+# grab "rabbitmqadmin" from inside the "rabbitmq_management-X.Y.Z" plugin folder
+# see https://github.com/docker-library/rabbitmq/issues/207
+	cp /plugins/rabbitmq_management-*/priv/www/cli/rabbitmqadmin /usr/local/bin/rabbitmqadmin; \
+	[ -s /usr/local/bin/rabbitmqadmin ]; \
+	chmod +x /usr/local/bin/rabbitmqadmin; \
+	apt-get update; \
+	apt-get install -y --no-install-recommends python3; \
+	rm -rf /var/lib/apt/lists/*; \
+	rabbitmqadmin --version
+
+EXPOSE 15671 15672
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index cb0b8c49..06b3ac24 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -274,7 +274,11 @@ RUN set -eux; \
 		xz \
 	; \
 	\
+{{ if env.version | IN("3.13", "4.0") then ( -}}
 	RABBITMQ_SOURCE_URL="https://github.com/rabbitmq/rabbitmq-server/releases/download/v$RABBITMQ_VERSION/rabbitmq-server-generic-unix-latest-toolchain-$RABBITMQ_VERSION.tar.xz"; \
+{{ ) else ( -}}
+	RABBITMQ_SOURCE_URL="https://github.com/rabbitmq/rabbitmq-server/releases/download/v$RABBITMQ_VERSION/rabbitmq-server-generic-unix-$RABBITMQ_VERSION.tar.xz"; \
+{{ ) end -}}
 	RABBITMQ_PATH="/usr/local/src/rabbitmq-$RABBITMQ_VERSION"; \
 	\
 	wget --output-document "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_SOURCE_URL.asc"; \
diff --git a/Dockerfile-ubuntu.template b/Dockerfile-ubuntu.template
index 9f9b0747..3965d413 100644
--- a/Dockerfile-ubuntu.template
+++ b/Dockerfile-ubuntu.template
@@ -275,7 +275,11 @@ RUN set -eux; \
 	; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
+{{ if env.version | IN("3.13", "4.0") then ( -}}
 	RABBITMQ_SOURCE_URL="https://github.com/rabbitmq/rabbitmq-server/releases/download/v$RABBITMQ_VERSION/rabbitmq-server-generic-unix-latest-toolchain-$RABBITMQ_VERSION.tar.xz"; \
+{{ ) else ( -}}
+	RABBITMQ_SOURCE_URL="https://github.com/rabbitmq/rabbitmq-server/releases/download/v$RABBITMQ_VERSION/rabbitmq-server-generic-unix-$RABBITMQ_VERSION.tar.xz"; \
+{{ ) end -}}
 	RABBITMQ_PATH="/usr/local/src/rabbitmq-$RABBITMQ_VERSION"; \
 	\
 	wget --progress dot:giga --output-document "$RABBITMQ_PATH.tar.xz.asc" "$RABBITMQ_SOURCE_URL.asc"; \
diff --git a/versions.json b/versions.json
index af6e067b..e4a22a94 100644
--- a/versions.json
+++ b/versions.json
@@ -34,5 +34,22 @@
     },
     "version": "4.0.3"
   },
-  "4.0-rc": null
+  "4.0-rc": null,
+  "4.1-rc": {
+    "alpine": {
+      "version": "3.20"
+    },
+    "openssl": {
+      "sha256": "2e8a40b01979afe8be0bbfb3de5dc1c6709fedb46d6c89c10da114ab5fc3d281",
+      "version": "3.3.2"
+    },
+    "otp": {
+      "sha256": "1772e9fa07b2b020ed5911d6ce78b251dfb6ed8509ed7de9d372e96b87251d14",
+      "version": "27.1.2"
+    },
+    "ubuntu": {
+      "version": "24.04"
+    },
+    "version": "4.1.0-beta.1"
+  }
 }
diff --git a/versions.sh b/versions.sh
index 497d678a..6d6bccc8 100755
--- a/versions.sh
+++ b/versions.sh
@@ -4,17 +4,20 @@ set -Eeuo pipefail
 declare -A alpineVersions=(
 	[3.13]='3.20'
 	[4.0]='3.20'
+	[4.1]='3.20'
 )
 
 declare -A ubuntuVersions=(
 	[3.13]='22.04'
 	[4.0]='24.04'
+	[4.1]='24.04'
 )
 
 # https://www.rabbitmq.com/which-erlang.html ("Maximum supported Erlang/OTP")
 declare -A otpMajors=(
 	[3.13]='26'
 	[4.0]='26'
+	[4.1]='27'
 )
 
 # https://www.openssl.org/policies/releasestrat.html
@@ -22,6 +25,7 @@ declare -A otpMajors=(
 declare -A opensslMajors=(
 	[3.13]='3.1'
 	[4.0]='3.3'
+	[4.1]='3.3'
 )
 
 cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"