diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e0d6a8ca..3ef8d590 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -25,7 +25,7 @@ jobs:
                     script: |
                         const matrix = {
                             cpu: ['x86', 'arm'],
-                            php_version: ['80', '81', '82', '83'],
+                            php_version: ['80', '81', '82', '83', '84'],
                         }
                         
                         // If this is a third-party pull request, skip ARM builds
diff --git a/Makefile b/Makefile
index c4178e74..50e0021a 100644
--- a/Makefile
+++ b/Makefile
@@ -35,13 +35,13 @@ default: docker-images layers
 
 
 # Build Docker images *locally*
-docker-images: docker-images-php-80 docker-images-php-81 docker-images-php-82 docker-images-php-83
+docker-images: docker-images-php-80 docker-images-php-81 docker-images-php-82 docker-images-php-83 docker-images-php-84
 docker-images-php-%:
 	PHP_VERSION=$* ${BAKE_COMMAND} --load
 
 
 # Build Lambda layers (zip files) *locally*
-layers: layer-php-80 layer-php-81 layer-php-82 layer-php-83 layer-php-80-fpm layer-php-81-fpm layer-php-82-fpm layer-php-83-fpm
+layers: layer-php-80 layer-php-81 layer-php-82 layer-php-83 layer-php-80-fpm layer-php-81-fpm layer-php-82-fpm layer-php-83-fpm layer-php-84-fpm
 	# Build the console layer only once (x86 and single PHP version)
 	@if [ ${CPU} = "x86" ]; then \
 		$(MAKE) layer-console; \
@@ -57,7 +57,7 @@ layer-%:
 # Upload the layers to AWS Lambda
 # Uses the current AWS_PROFILE. Most users will not want to use this option
 # as this will publish all layers to all regions + publish all Docker images.
-upload-layers: upload-layers-php-80 upload-layers-php-81 upload-layers-php-82 upload-layers-php-83
+upload-layers: upload-layers-php-80 upload-layers-php-81 upload-layers-php-82 upload-layers-php-83 upload-layers-php-84
 	# Upload the console layer only once (x86 and single PHP version)
 	@if [ ${CPU} = "x86" ]; then \
 		LAYER_NAME=console $(MAKE) -C ./utils/lambda-publish publish-parallel; \
@@ -70,7 +70,7 @@ upload-layers-php-%:
 
 
 # Publish Docker images to Docker Hub.
-upload-to-docker-hub: upload-to-docker-hub-php-80 upload-to-docker-hub-php-81 upload-to-docker-hub-php-82 upload-to-docker-hub-php-83
+upload-to-docker-hub: upload-to-docker-hub-php-80 upload-to-docker-hub-php-81 upload-to-docker-hub-php-82 upload-to-docker-hub-php-83 upload-to-docker-hub-php-84
 upload-to-docker-hub-php-%:
     # Make sure we have defined the docker tag
 	(test $(DOCKER_TAG)) && echo "Tagging images with \"${DOCKER_TAG}\"" || echo "You have to define environment variable DOCKER_TAG"
@@ -86,12 +86,12 @@ upload-to-docker-hub-php-%:
 	done
 
 
-test: test-80 test-81 test-82 test-83
+test: test-80 test-81 test-82 test-83 test-84
 test-%:
 	cd tests && $(MAKE) test-$*
 
 
-clean: clean-80 clean-81 clean-82 clean-83
+clean: clean-80 clean-81 clean-82 clean-83 clean-84
 	# Clear the build cache, else all images will be rebuilt using cached layers
 	docker builder prune
 	# Remove zip files
diff --git a/layers/fpm-dev/Dockerfile b/layers/fpm-dev/Dockerfile
index 2bb9c13f..58bf2a64 100644
--- a/layers/fpm-dev/Dockerfile
+++ b/layers/fpm-dev/Dockerfile
@@ -10,14 +10,14 @@ ARG PHP_VERSION
 RUN mkdir -p /opt/bref/extensions
 
 # Install xdebug
-RUN pecl install xdebug
-RUN cp $(php -r "echo ini_get('extension_dir');")/xdebug.so /opt/bref/extensions
+RUN if [ $PHP_VERSION != "84" ]; then pecl install xdebug; fi
+RUN if [ $PHP_VERSION != "84" ]; then cp $(php -r "echo ini_get('extension_dir');")/xdebug.so /opt/bref/extensions; fi
 
 # Install Blackfire
 # https://blackfire.io/docs/up-and-running/installation?action=install&mode=full&version=latest&mode=full&location=server&os=manual&language=php#install-the-php-probe
 ARG BLACKFIRE_VERSION=1.87.2
-RUN if [ $PHP_VERSION != "83" ] && [ $CPU_PREFIX == "" ]; then curl -A "Docker" -o /opt/bref/extensions/blackfire.so -L -s "https://packages.blackfire.io/binaries/blackfire-php/$BLACKFIRE_VERSION/blackfire-php-linux_amd64-php-"$PHP_VERSION".so"; fi
-RUN if [ $PHP_VERSION != "83" ] && [ $CPU_PREFIX == "arm-" ]; then curl -A "Docker" -o /opt/bref/extensions/blackfire.so -L -s "https://packages.blackfire.io/binaries/blackfire-php/$BLACKFIRE_VERSION/blackfire-php-linux_arm64-php-"$PHP_VERSION".so"; fi
+RUN if [ $PHP_VERSION != "83" ] && [ $PHP_VERSION != "84" ] && [ $CPU_PREFIX == "" ]; then curl -A "Docker" -o /opt/bref/extensions/blackfire.so -L -s "https://packages.blackfire.io/binaries/blackfire-php/$BLACKFIRE_VERSION/blackfire-php-linux_amd64-php-"$PHP_VERSION".so"; fi
+RUN if [ $PHP_VERSION != "83" ] && [ $PHP_VERSION != "84" ] && [ $CPU_PREFIX == "arm-" ]; then curl -A "Docker" -o /opt/bref/extensions/blackfire.so -L -s "https://packages.blackfire.io/binaries/blackfire-php/$BLACKFIRE_VERSION/blackfire-php-linux_arm64-php-"$PHP_VERSION".so"; fi
 
 
 FROM bref/${CPU_PREFIX}php-${PHP_VERSION}-fpm
diff --git a/php-84/Dockerfile b/php-84/Dockerfile
new file mode 100644
index 00000000..21faa091
--- /dev/null
+++ b/php-84/Dockerfile
@@ -0,0 +1,563 @@
+# syntax = docker/dockerfile:1.4
+
+# Can be "x86_64" or "arm64"
+ARG IMAGE_VERSION_SUFFIX
+
+# https://www.php.net/downloads
+ARG VERSION_PHP=8.4.0alpha1
+
+
+# Lambda uses a custom AMI named Amazon Linux 2
+# https://docs.aws.amazon.com/lambda/latest/dg/current-supported-versions.html
+# AWS provides a Docker image that we use here:
+# https://github.com/amazonlinux/container-images/tree/amzn2
+FROM public.ecr.aws/lambda/provided:al2-${IMAGE_VERSION_SUFFIX} as build-environment
+
+
+RUN set -xe \
+    # Download yum repository data to cache
+ && yum makecache \
+    # Install default development tools (gcc, make, etc)
+ && yum groupinstall -y "Development Tools" --setopt=group_package_types=mandatory,default
+
+
+# The default version of cmake is 2.8.12. We need cmake to build a few of
+# our libraries, and at least one library requires a version of cmake greater than that.
+# Needed to build:
+# - libzip: minimum required CMAKE version 3.0.
+RUN LD_LIBRARY_PATH= yum install -y cmake3
+# Override the default `cmake`
+RUN ln -s /usr/bin/cmake3 /usr/bin/cmake
+
+
+# We need a base path for all the sourcecode we will build from.
+ENV BUILD_DIR="/tmp/build"
+
+# Target installation path for all the binaries and libraries we will compile.
+# We need to use /opt because that's where AWS Lambda layers are unzipped,
+# and we need binaries (e.g. /opt/bin/php) to look for libraries in /opt/lib.
+# Indeed, `/opt/lib` is a path Lambda looks for libraries by default (it is in `LD_LIBRARY_PATH`)
+# AND the `/opt/lib` path will be hardcoded in the compiled binaries and libraries (called "rpath").
+#
+# Note: the /opt directory will be completely recreated from scratch in the final images,
+# so it's ok at this stage if we "pollute" it with plenty of extra libs/build artifacts.
+ENV INSTALL_DIR="/opt"
+
+# We need some default compiler variables setup
+ENV PKG_CONFIG_PATH="${INSTALL_DIR}/lib64/pkgconfig:${INSTALL_DIR}/lib/pkgconfig" \
+    PKG_CONFIG="/usr/bin/pkg-config" \
+    PATH="${INSTALL_DIR}/bin:${PATH}"
+
+ENV LD_LIBRARY_PATH="${INSTALL_DIR}/lib64:${INSTALL_DIR}/lib"
+
+# Enable parallelism by default for make and cmake (like make -j)
+# See https://stackoverflow.com/a/50883540/245552
+ENV CMAKE_BUILD_PARALLEL_LEVEL=4
+ENV MAKEFLAGS='-j4'
+
+# Ensure we have all the directories we require in the container.
+RUN mkdir -p ${BUILD_DIR}  \
+    ${INSTALL_DIR}/bin \
+    ${INSTALL_DIR}/doc \
+    ${INSTALL_DIR}/etc/php \
+    ${INSTALL_DIR}/etc/php/conf.d \
+    ${INSTALL_DIR}/include \
+    ${INSTALL_DIR}/lib \
+    ${INSTALL_DIR}/lib64 \
+    ${INSTALL_DIR}/libexec \
+    ${INSTALL_DIR}/sbin \
+    ${INSTALL_DIR}/share
+
+
+###############################################################################
+# ZLIB Build
+# We compile a newer version because Lambda uses an old version (1.2.7) that
+# has a security vulnerability (CVE-2022-37434).
+# See https://github.com/brefphp/aws-lambda-layers/pull/110
+# Can be removed once Lambda updates their version.
+# https://github.com/madler/zlib/releases
+ENV VERSION_ZLIB=1.3.1
+ENV ZLIB_BUILD_DIR=${BUILD_DIR}/zlib
+RUN set -xe; \
+    mkdir -p ${ZLIB_BUILD_DIR}; \
+    curl -Ls https://github.com/madler/zlib/releases/download/v${VERSION_ZLIB}/zlib-${VERSION_ZLIB}.tar.gz \
+  | tar xzC ${ZLIB_BUILD_DIR} --strip-components=1
+WORKDIR ${ZLIB_BUILD_DIR}/
+RUN set -xe; \
+    make distclean \
+ && CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include  -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./configure \
+    --prefix=${INSTALL_DIR}
+RUN set -xe; \
+    make install \
+ && rm ${INSTALL_DIR}/lib/libz.a
+
+
+###############################################################################
+# OPENSSL
+# https://github.com/openssl/openssl/releases
+# Needs:
+#   - zlib
+# Needed by:
+#   - curl
+#   - php
+RUN yum install -y perl-IPC-Cmd
+ENV VERSION_OPENSSL=3.3.1
+ENV OPENSSL_BUILD_DIR=${BUILD_DIR}/openssl
+ENV CA_BUNDLE_SOURCE="https://curl.se/ca/cacert.pem"
+ENV CA_BUNDLE="${INSTALL_DIR}/bref/ssl/cert.pem"
+RUN set -xe; \
+    mkdir -p ${OPENSSL_BUILD_DIR}; \
+    curl -Ls https://github.com/openssl/openssl/releases/download/openssl-${VERSION_OPENSSL}/openssl-${VERSION_OPENSSL}.tar.gz \
+  | tar xzC ${OPENSSL_BUILD_DIR} --strip-components=1
+WORKDIR  ${OPENSSL_BUILD_DIR}/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./config \
+        --prefix=${INSTALL_DIR} \
+        --openssldir=${INSTALL_DIR}/bref/ssl \
+        --release \
+        enable-tls1_3 \
+        no-tests \
+        shared \
+        zlib
+# Explicitly compile make without parallelism because it fails if we use -jX (no error message)
+# I'm not 100% sure why, and I already lost 4 hours on this, but I found this:
+# https://github.com/openssl/openssl/issues/9931
+# https://stackoverflow.com/questions/28639207/why-cant-i-compile-openssl-with-multiple-threads-make-j3
+# Run `make install_sw install_ssldirs` instead of `make install` to skip installing man pages https://github.com/openssl/openssl/issues/8170
+RUN make -j1 install_sw install_ssldirs
+RUN mkdir -p ${INSTALL_DIR}/bref/ssl && curl -Lk -o ${CA_BUNDLE} ${CA_BUNDLE_SOURCE}
+
+
+###############################################################################
+# LIBXML2
+# https://gitlab.gnome.org/GNOME/libxml2/-/releases
+# Uses:
+#   - zlib
+# Needed by:
+#   - php
+#   - libnghttp2
+ENV VERSION_XML2=2.12.8
+ENV XML2_BUILD_DIR=${BUILD_DIR}/xml2
+RUN set -xe; \
+    mkdir -p ${XML2_BUILD_DIR}; \
+    curl -Ls https://download.gnome.org/sources/libxml2/${VERSION_XML2%.*}/libxml2-${VERSION_XML2}.tar.xz \
+  | tar xJC ${XML2_BUILD_DIR} --strip-components=1
+WORKDIR  ${XML2_BUILD_DIR}/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./configure \
+    --prefix=${INSTALL_DIR} \
+    --with-sysroot=${INSTALL_DIR} \
+    --enable-shared \
+    --disable-static \
+    --with-html \
+    --with-history \
+    --enable-ipv6=no \
+    --with-icu \
+    --with-zlib \
+    --without-python
+RUN make install \
+ && cp xml2-config ${INSTALL_DIR}/bin/xml2-config
+
+
+###############################################################################
+# LIBSSH2
+# https://github.com/libssh2/libssh2/releases
+# Needs:
+#   - zlib
+#   - OpenSSL
+# Needed by:
+#   - curl
+ENV VERSION_LIBSSH2=1.11.0
+ENV LIBSSH2_BUILD_DIR=${BUILD_DIR}/libssh2
+RUN set -xe; \
+    mkdir -p ${LIBSSH2_BUILD_DIR}/bin; \
+    curl -Ls https://github.com/libssh2/libssh2/releases/download/libssh2-${VERSION_LIBSSH2}/libssh2-${VERSION_LIBSSH2}.tar.gz \
+  | tar xzC ${LIBSSH2_BUILD_DIR} --strip-components=1
+WORKDIR  ${LIBSSH2_BUILD_DIR}/bin/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    cmake .. \
+        # Build as a shared library (.so) instead of a static one
+        -DBUILD_SHARED_LIBS=ON \
+        # Build with OpenSSL support
+        -DCRYPTO_BACKEND=OpenSSL \
+        # Build with zlib support
+        -DENABLE_ZLIB_COMPRESSION=ON \
+        -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR} \
+        -DCMAKE_BUILD_TYPE=RELEASE
+RUN cmake  --build . --target install
+
+
+###############################################################################
+# LIBNGHTTP2
+# This adds support for HTTP 2 requests in curl.
+# See https://github.com/brefphp/bref/issues/727 and https://github.com/brefphp/bref/pull/740
+# https://github.com/nghttp2/nghttp2/releases
+# Needs:
+#   - zlib
+#   - OpenSSL
+#   - libxml2
+# Needed by:
+#   - curl
+ENV VERSION_NGHTTP2=1.62.1
+ENV NGHTTP2_BUILD_DIR=${BUILD_DIR}/nghttp2
+RUN set -xe; \
+    mkdir -p ${NGHTTP2_BUILD_DIR}; \
+    curl -Ls https://github.com/nghttp2/nghttp2/releases/download/v${VERSION_NGHTTP2}/nghttp2-${VERSION_NGHTTP2}.tar.gz \
+    | tar xzC ${NGHTTP2_BUILD_DIR} --strip-components=1
+WORKDIR  ${NGHTTP2_BUILD_DIR}/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./configure \
+    --enable-lib-only \
+    --prefix=${INSTALL_DIR}
+RUN make install
+
+
+###############################################################################
+# LIBPSL
+# This adds support for the public suffix list in curl.
+# https://github.com/rockdaboot/libpsl/releases
+# Needed by:
+#   - curl
+ENV VERSION_LIBPSL=0.21.5
+ENV LIBPSL_BUILD_DIR=${BUILD_DIR}/libpsl
+RUN set -xe; \
+    mkdir -p ${LIBPSL_BUILD_DIR}; \
+    curl -Ls https://github.com/rockdaboot/libpsl/releases/download/${VERSION_LIBPSL}/libpsl-${VERSION_LIBPSL}.tar.gz \
+    | tar xzC ${LIBPSL_BUILD_DIR} --strip-components=1
+WORKDIR  ${LIBPSL_BUILD_DIR}/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./configure \
+    --prefix=${INSTALL_DIR}
+RUN make -j $(nproc) && make install
+
+
+###############################################################################
+# CURL
+# # https://github.com/curl/curl/releases
+# # Needs:
+# #   - zlib
+# #   - OpenSSL
+# #   - libssh2
+# #   - libnghttp2
+# # Needed by:
+# #   - php
+ENV VERSION_CURL=8.8.0
+ENV CURL_BUILD_DIR=${BUILD_DIR}/curl
+RUN set -xe; \
+    mkdir -p ${CURL_BUILD_DIR}/bin; \
+    curl -Ls https://github.com/curl/curl/archive/curl-${VERSION_CURL//./_}.tar.gz \
+    | tar xzC ${CURL_BUILD_DIR} --strip-components=1
+WORKDIR  ${CURL_BUILD_DIR}/
+RUN ./buildconf \
+ && CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./configure \
+    --prefix=${INSTALL_DIR} \
+    --with-ca-bundle=${CA_BUNDLE} \
+    --enable-shared \
+    --disable-static \
+    --enable-optimize \
+    --disable-warnings \
+    --disable-dependency-tracking \
+    --with-zlib \
+    --enable-http \
+    --enable-ftp  \
+    --enable-file \
+    --enable-proxy  \
+    --enable-tftp \
+    --enable-ipv6 \
+    --enable-openssl-auto-load-config \
+    --enable-cookies \
+    --with-gnu-ld \
+    --with-ssl \
+    --with-libssh2 \
+    --with-nghttp2
+RUN make install
+
+
+###############################################################################
+# LIBZIP
+# https://github.com/nih-at/libzip/releases
+# Needed by:
+#   - php
+ENV VERSION_ZIP=1.10.1
+ENV ZIP_BUILD_DIR=${BUILD_DIR}/zip
+RUN set -xe; \
+    mkdir -p ${ZIP_BUILD_DIR}/bin/; \
+    curl -Ls https://github.com/nih-at/libzip/releases/download/v${VERSION_ZIP}/libzip-${VERSION_ZIP}.tar.gz \
+  | tar xzC ${ZIP_BUILD_DIR} --strip-components=1
+WORKDIR  ${ZIP_BUILD_DIR}/bin/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    cmake .. \
+        -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR} \
+        -DCMAKE_BUILD_TYPE=RELEASE
+RUN cmake  --build . --target install
+
+
+###############################################################################
+# LIBSODIUM
+# https://github.com/jedisct1/libsodium/releases
+# Needed by:
+#   - php
+ENV VERSION_LIBSODIUM=1.0.20
+ENV LIBSODIUM_BUILD_DIR=${BUILD_DIR}/libsodium
+RUN set -xe; \
+    mkdir -p ${LIBSODIUM_BUILD_DIR}; \
+    curl -Ls https://github.com/jedisct1/libsodium/archive/${VERSION_LIBSODIUM}-RELEASE.tar.gz \
+  | tar xzC ${LIBSODIUM_BUILD_DIR} --strip-components=1
+WORKDIR  ${LIBSODIUM_BUILD_DIR}/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./autogen.sh \
+&& ./configure --prefix=${INSTALL_DIR}
+RUN make install
+
+
+###############################################################################
+# Postgres
+# https://github.com/postgres/postgres/tags
+# Needs:
+#   - OpenSSL
+# Needed by:
+#   - php
+ENV VERSION_POSTGRES=16.3
+ENV POSTGRES_BUILD_DIR=${BUILD_DIR}/postgres
+RUN set -xe; \
+    mkdir -p ${POSTGRES_BUILD_DIR}/bin; \
+    curl -Ls https://github.com/postgres/postgres/archive/REL_${VERSION_POSTGRES//./_}.tar.gz \
+    | tar xzC ${POSTGRES_BUILD_DIR} --strip-components=1
+WORKDIR  ${POSTGRES_BUILD_DIR}/
+RUN CFLAGS="" \
+    CPPFLAGS="-I${INSTALL_DIR}/include -I/usr/include" \
+    LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib" \
+    ./configure --prefix=${INSTALL_DIR} --with-openssl --without-icu --without-readline
+RUN cd ${POSTGRES_BUILD_DIR}/src/interfaces/libpq && make && make install
+RUN cd ${POSTGRES_BUILD_DIR}/src/bin/pg_config && make && make install
+RUN cd ${POSTGRES_BUILD_DIR}/src/backend && make generated-headers
+RUN cd ${POSTGRES_BUILD_DIR}/src/include && make install
+
+
+###############################################################################
+# Oniguruma
+# This library is not packaged in PHP since PHP 7.4.
+# See https://github.com/php/php-src/blob/43dc7da8e3719d3e89bd8ec15ebb13f997bbbaa9/UPGRADING#L578-L581
+# We do not install the system version because I didn't manage to make it work...
+# Ideally we shouldn't compile it ourselves.
+# https://github.com/kkos/oniguruma/releases
+# Needed by:
+#   - php mbstring
+ENV VERSION_ONIG=6.9.9
+ENV ONIG_BUILD_DIR=${BUILD_DIR}/oniguruma
+RUN set -xe; \
+    mkdir -p ${ONIG_BUILD_DIR}; \
+    curl -Ls https://github.com/kkos/oniguruma/releases/download/v${VERSION_ONIG}/onig-${VERSION_ONIG}.tar.gz \
+    | tar xzC ${ONIG_BUILD_DIR} --strip-components=1
+WORKDIR  ${ONIG_BUILD_DIR}
+RUN ./configure --prefix=${INSTALL_DIR}
+RUN make && make install
+
+
+###############################################################################
+# SQLite
+# Since PHP 7.4, libsqlite must be installed (https://github.com/php/php-src/blob/99b8e67615159fc600a615e1e97f2d1cf18f14cb/UPGRADING#L616-L619)
+# PHP 8.4 requires SQLite 3.13.0 or higher because the build uses the
+# `SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION` constant. The system version is 3.7.17.
+# See https://github.com/brefphp/aws-lambda-layers/pull/185
+# https://www.sqlite.org/changes.html
+# Needed by:
+#   - php
+RUN LD_LIBRARY_PATH= yum install -y tcl
+ENV VERSION_SQLITE=3.46.0
+ENV SQLITE_BUILD_DIR=${BUILD_DIR}/sqlite
+RUN set -xe; \
+    mkdir -p ${SQLITE_BUILD_DIR}; \
+    curl -Ls https://github.com/sqlite/sqlite/archive/refs/tags/version-${VERSION_SQLITE}.tar.gz \
+    | tar xzC ${SQLITE_BUILD_DIR} --strip-components=1
+WORKDIR ${SQLITE_BUILD_DIR}
+RUN ./configure --prefix=${INSTALL_DIR}
+RUN make && make install
+
+
+###############################################################################
+# Install some dev files for using old libraries already on the system
+# readline-devel : needed for the readline extension
+# gettext-devel : needed for the --with-gettext flag
+# libicu-devel : needed for intl
+# libxslt-devel : needed for the XSL extension
+RUN LD_LIBRARY_PATH= yum install -y readline-devel gettext-devel libicu-devel libxslt-devel
+
+
+# Note: this variable is used when building extra/custom extensions, do not remove
+ENV PHP_BUILD_DIR=/tmp/php
+
+# PHP Build
+# https://github.com/php/php-src/releases
+# Needs:
+#   - zlib
+#   - libxml2
+#   - openssl
+#   - readline
+#   - sodium
+RUN mkdir -p ${PHP_BUILD_DIR}
+WORKDIR ${PHP_BUILD_DIR}
+
+# Download and unpack the source code
+# --location will follow redirects
+# --silent will hide the progress, but also the errors: we restore error messages with --show-error
+# --fail makes sure that curl returns an error instead of fetching the 404 page
+ARG VERSION_PHP
+RUN curl --location --silent --show-error --fail https://downloads.php.net/~saki/php-${VERSION_PHP}.tar.gz \
+  | tar xzC . --strip-components=1
+
+# Configure the build
+# -fstack-protector-strong : Be paranoid about stack overflows
+# -fpic : Make PHP's main executable position-independent (improves ASLR security mechanism, and has no performance impact on x86_64)
+# -fpie : Support Address Space Layout Randomization (see -fpic)
+# -O3 : Optimize for fastest binaries possible.
+# -I : Add the path to the list of directories to be searched for header files during preprocessing.
+# --enable-option-checking=fatal: make sure invalid --configure-flags are fatal errors instead of just warnings
+# --enable-ftp: because ftp_ssl_connect() needs ftp to be compiled statically (see https://github.com/docker-library/php/issues/236)
+# --enable-mbstring: because otherwise there's no way to get pecl to use it properly (see https://github.com/docker-library/php/issues/195)
+ARG PHP_COMPILATION_FLAGS
+RUN ./buildconf --force
+RUN CFLAGS="-fstack-protector-strong -fpic -fpie -O3 -I${INSTALL_DIR}/include -I/usr/include -ffunction-sections -fdata-sections" \
+        CPPFLAGS="-fstack-protector-strong -fpic -fpie -O3 -I${INSTALL_DIR}/include -I/usr/include -ffunction-sections -fdata-sections" \
+        LDFLAGS="-L${INSTALL_DIR}/lib64 -L${INSTALL_DIR}/lib -Wl,-O1 -Wl,--strip-all -Wl,--hash-style=both -pie" \
+    ./configure \
+        --prefix=${INSTALL_DIR} \
+        --enable-option-checking=fatal \
+        --enable-sockets \
+        --with-config-file-path=/opt/bref/etc/php \
+        --with-config-file-scan-dir=/opt/bref/etc/php/conf.d:/var/task/php/conf.d \
+        --enable-fpm \
+        --disable-cgi \
+        --enable-cli \
+        --disable-phpdbg \
+        --with-sodium \
+        --with-readline \
+        --with-openssl \
+        --with-zlib \
+        --with-curl \
+        --enable-exif \
+        --enable-ftp \
+        --with-gettext \
+        --enable-mbstring \
+        --with-pdo-mysql=shared,mysqlnd \
+        --with-mysqli \
+        --enable-pcntl \
+        --with-zip \
+        --enable-bcmath \
+        --with-pdo-pgsql=shared,${INSTALL_DIR} \
+        --enable-intl=shared \
+        --enable-soap \
+        --with-xsl=${INSTALL_DIR} \
+        # necessary for `pecl` to work (to install PHP extensions)
+        --with-pear \
+        # extra compilation flags
+        ${PHP_COMPILATION_FLAGS}
+RUN make -j $(nproc)
+# Run `make install` and override PEAR's PHAR URL because pear.php.net is down
+RUN set -xe; \
+    make install PEAR_INSTALLER_URL='https://github.com/pear/pearweb_phars/raw/master/install-pear-nozlib.phar'; \
+    { find ${INSTALL_DIR}/bin ${INSTALL_DIR}/sbin -type f -perm +0111 -exec strip --strip-all '{}' + || true; }; \
+    make clean; \
+    cp php.ini-production ${INSTALL_DIR}/etc/php/php.ini
+
+
+# Install extensions
+# We can install extensions manually or using `pecl`
+RUN pecl install APCu
+
+
+# ---------------------------------------------------------------
+# Now we copy everything we need for the layers into /bref-layer (which will be used for the real /opt later)
+RUN mkdir -p /bref-layer/bin \
+&&  mkdir -p /bref-layer/lib \
+&&  mkdir -p /bref-layer/bref/extensions \
+&&  mkdir -p /bref-layer/bref/ssl
+
+# Copy the PHP binary
+RUN cp ${INSTALL_DIR}/bin/php /bref-layer/bin/php && chmod +x /bref-layer/bin/php
+
+# Copy all the external PHP extensions
+RUN cp $(php -r 'echo ini_get("extension_dir");')/* /bref-layer/bref/extensions/
+
+# Copy all the required system libraries from:
+# - /lib | /lib64 (system libraries installed with `yum`)
+# - /opt/bin | /opt/lib | /opt/lib64 (libraries compiled from source)
+# into `/bref-layer` (the temp directory for the future Lambda layer)
+COPY --link utils/lib-copy /bref/lib-copy
+RUN php /bref/lib-copy/copy-dependencies.php /bref-layer/bin/php /bref-layer/lib
+RUN php /bref/lib-copy/copy-dependencies.php /bref-layer/bref/extensions/apcu.so /bref-layer/lib
+RUN php /bref/lib-copy/copy-dependencies.php /bref-layer/bref/extensions/intl.so /bref-layer/lib
+RUN php /bref/lib-copy/copy-dependencies.php /bref-layer/bref/extensions/opcache.so /bref-layer/lib
+RUN php /bref/lib-copy/copy-dependencies.php /bref-layer/bref/extensions/pdo_mysql.so /bref-layer/lib
+RUN php /bref/lib-copy/copy-dependencies.php /bref-layer/bref/extensions/pdo_pgsql.so /bref-layer/lib
+
+# Copy the OpenSSL certificates file
+RUN cp ${CA_BUNDLE} /bref-layer/bref/ssl/cert.pem
+
+# Copy the OpenSSL config
+RUN cp ${INSTALL_DIR}/bref/ssl/openssl.cnf /bref-layer/bref/ssl/openssl.cnf
+
+
+# ---------------------------------------------------------------
+# Start from a clean image to copy only the files we need
+FROM public.ecr.aws/lambda/provided:al2-${IMAGE_VERSION_SUFFIX} as isolation
+
+# We selected the files in /bref-layer, now we copy them to /opt (the real directory for the Lambda layer)
+COPY --link --from=build-environment /bref-layer /opt
+
+COPY --link layers/bootstrap.php /opt/bref/bootstrap.php
+
+
+FROM isolation as function
+
+COPY --link layers/function/bref.ini /opt/bref/etc/php/conf.d/
+
+COPY --link layers/function/bootstrap.sh /opt/bootstrap
+# Copy files to /var/runtime to support deploying as a Docker image
+COPY --link layers/function/bootstrap.sh /var/runtime/bootstrap
+RUN chmod +x /opt/bootstrap && chmod +x /var/runtime/bootstrap
+
+
+# Up until here the entire file has been designed as a top-down reading/execution.
+# Everything necessary for the `function` layer has been installed, isolated and
+# packaged. Now we'll go back one step and start from the extensions so that we
+# can install fpm. Then we'll start the fpm layer and quickly isolate fpm.
+
+FROM build-environment as fpm-extension
+
+RUN cp ${INSTALL_DIR}/sbin/php-fpm /bref-layer/bin/php-fpm
+RUN php /bref/lib-copy/copy-dependencies.php /bref-layer/bin/php-fpm /bref-layer/lib
+
+
+FROM isolation as fpm
+
+COPY --link --from=fpm-extension /bref-layer /opt
+
+COPY --link layers/fpm/bref.ini /opt/bref/etc/php/conf.d/
+
+COPY --link layers/fpm/bootstrap.sh /opt/bootstrap
+# Copy files to /var/runtime to support deploying as a Docker image
+COPY --link layers/fpm/bootstrap.sh /var/runtime/bootstrap
+RUN chmod +x /opt/bootstrap && chmod +x /var/runtime/bootstrap
+
+COPY --link layers/fpm/php-fpm.conf /opt/bref/etc/php-fpm.conf
diff --git a/tests/Makefile b/tests/Makefile
index f7631fb4..0f0ea452 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,6 +1,6 @@
 export CPU_PREFIX ?=
 
-test: test-80 test-81 test-82 test-83
+test: test-80 test-81 test-82 test-83 test-84
 
 # This rule matches with a wildcard, for example `test-80`.
 # The `$*` variable will contained the matched part, in this case `80`.