diff --git a/bin/4.2.x-dev/prepare_project_edition.sh b/bin/4.2.x-dev/prepare_project_edition.sh
index 80a9cac..9ab874d 100755
--- a/bin/4.2.x-dev/prepare_project_edition.sh
+++ b/bin/4.2.x-dev/prepare_project_edition.sh
@@ -79,7 +79,7 @@ if [[ "$PROJECT_EDITION" != "oss" ]]; then
         if [[ "$PROJECT_EDITION" == "$EDITION" ]]; then
             break
         fi
-        COMPOSER_JSON_CONTENT=$(curl -s "https://raw.githubusercontent.com/ibexa/$EDITION/master/composer.json")
+        COMPOSER_JSON_CONTENT=$(curl -s "https://raw.githubusercontent.com/ibexa/$EDITION/4.2/composer.json")
         EDITION_PACKAGES=$(echo "$COMPOSER_JSON_CONTENT" | \
             jq -r --arg projectEdition "ibexa/$PROJECT_EDITION" \
             '.require | with_entries(select(.key | contains("ibexa/"))) | with_entries(select(.key == $projectEdition | not )) | keys')
diff --git a/bin/4.3.x-dev/prepare_project_edition.sh b/bin/4.3.x-dev/prepare_project_edition.sh
new file mode 100755
index 0000000..300408c
--- /dev/null
+++ b/bin/4.3.x-dev/prepare_project_edition.sh
@@ -0,0 +1,161 @@
+#!/bin/bash
+set -e
+
+PROJECT_EDITION=$1
+PROJECT_VERSION=$2
+PROJECT_BUILD_DIR=${HOME}/build/project
+export COMPOSE_FILE=$3
+export PHP_IMAGE=${4-ezsystems/php:7.4-v2-node16}
+export COMPOSER_MAX_PARALLEL_HTTP=6 # Reduce Composer parallelism to work around Github Actions network errors
+
+if [[ -n "${DOCKER_PASSWORD}" ]]; then
+    echo "> Set up Docker credentials"
+    echo ${DOCKER_PASSWORD} | docker login -u ${DOCKER_USERNAME} --password-stdin
+fi
+
+# Get details about dependency package
+DEPENDENCY_PACKAGE_DIR=$(pwd)
+DEPENDENCY_PACKAGE_NAME=$(jq -r '.["name"]' "${DEPENDENCY_PACKAGE_DIR}/composer.json")
+DEPENDENCY_PACKAGE_VERSION=$(jq -r '.["extra"]["branch-alias"] | flatten | .[0]' "${DEPENDENCY_PACKAGE_DIR}/composer.json")
+if [[ -z "${DEPENDENCY_PACKAGE_NAME}" ]]; then
+    echo 'Missing composer package name of tested dependency' >&2
+    exit 2
+fi
+
+echo '> Preparing project containers using the following setup:'
+echo "- PROJECT_BUILD_DIR=${PROJECT_BUILD_DIR}"
+echo "- DEPENDENCY_PACKAGE_NAME=${DEPENDENCY_PACKAGE_NAME}"
+
+# Go to main project dir
+mkdir -p $PROJECT_BUILD_DIR && cd $PROJECT_BUILD_DIR
+
+# Create container to install dependencies
+docker run --name install_dependencies -d \
+--volume=${PROJECT_BUILD_DIR}:/var/www:cached \
+--volume=${HOME}/.composer:/root/.composer \
+-e APP_ENV -e APP_DEBUG  \
+-e COMPOSER_MAX_PARALLEL_HTTP \
+-e PHP_INI_ENV_memory_limit -e COMPOSER_MEMORY_LIMIT \
+-e COMPOSER_NO_INTERACTION=1 \
+${PHP_IMAGE}
+
+echo "> Setting up website skeleton"
+composer create-project ibexa/website-skeleton:$PROJECT_VERSION . --no-install
+
+# Add other dependencies if required
+if [ -f ${DEPENDENCY_PACKAGE_DIR}/dependencies.json ]; then
+    cp ${DEPENDENCY_PACKAGE_DIR}/dependencies.json .
+    echo "> Additional dependencies will be added"
+    cat dependencies.json
+    RECIPES_ENDPOINT=$(cat dependencies.json | jq -r '.recipesEndpoint')
+    if [[ $RECIPES_ENDPOINT != "" ]] ; then
+        echo "> Switching Symfony Flex endpoint to $RECIPES_ENDPOINT"
+        composer config extra.symfony.endpoint $RECIPES_ENDPOINT
+    fi
+fi
+
+docker exec install_dependencies composer update
+
+# Move dependency to directory available for docker volume
+echo "> Move ${DEPENDENCY_PACKAGE_DIR} to ${PROJECT_BUILD_DIR}/${DEPENDENCY_PACKAGE_NAME}"
+mkdir -p ${PROJECT_BUILD_DIR}/${DEPENDENCY_PACKAGE_NAME}
+mv ${DEPENDENCY_PACKAGE_DIR}/* ${PROJECT_BUILD_DIR}/${DEPENDENCY_PACKAGE_NAME}/
+
+# Remove installed dependencies inside the package
+rm -rf ${PROJECT_BUILD_DIR}/${DEPENDENCY_PACKAGE_NAME}/vendor
+
+# Copy auth.json if needed
+if [ -f ./${DEPENDENCY_PACKAGE_NAME}/auth.json ]; then
+    cp ${DEPENDENCY_PACKAGE_NAME}/auth.json .
+fi
+
+if [[ "$PROJECT_EDITION" != "oss" ]]; then
+    composer config repositories.ibexa composer https://updates.ibexa.co
+
+    editions=(commerce experience content)
+
+    IBEXA_PACKAGES="[]"
+    for EDITION in "${editions[@]}"; do
+        if [[ "$PROJECT_EDITION" == "$EDITION" ]]; then
+            break
+        fi
+        COMPOSER_JSON_CONTENT=$(curl -s "https://raw.githubusercontent.com/ibexa/$EDITION/master/composer.json")
+        EDITION_PACKAGES=$(echo "$COMPOSER_JSON_CONTENT" | \
+            jq -r --arg projectEdition "ibexa/$PROJECT_EDITION" \
+            '.require | with_entries(select(.key | contains("ibexa/"))) | with_entries(select(.key == $projectEdition | not )) | keys')
+        IBEXA_PACKAGES=$(echo "$IBEXA_PACKAGES" | jq --argjson editionPackages "$EDITION_PACKAGES" '. + $editionPackages')
+
+    done
+
+    jq --argjson ibexaPackages "$IBEXA_PACKAGES" '.repositories.ibexa.exclude = $ibexaPackages' composer.json > composer.json.new
+    mv composer.json.new composer.json
+fi
+
+echo "> Make composer use tested dependency"
+JSON_STRING=$( jq -n \
+                  --arg packageVersion "$DEPENDENCY_PACKAGE_VERSION" \
+                  --arg packageName "$DEPENDENCY_PACKAGE_NAME" \
+                  --arg packageDir "./$DEPENDENCY_PACKAGE_NAME" \
+                  '{"type": "path", "url": $packageDir, "options": { "symlink": false , "versions": { ($packageName): $packageVersion}}}' )
+
+composer config repositories.localDependency "$JSON_STRING"
+
+# Install Behat and Docker packages
+docker exec install_dependencies composer require ibexa/behat:$PROJECT_VERSION ibexa/docker:$PROJECT_VERSION --no-scripts --no-update
+
+# Add other dependencies if required
+if [ -f dependencies.json ]; then
+    COUNT=$(cat dependencies.json | jq '.packages | length' )
+    for ((i=0;i<$COUNT;i++)); do
+        REPO_URL=$(cat dependencies.json | jq -r .packages[$i].repositoryUrl)
+        PACKAGE_NAME=$(cat dependencies.json | jq -r .packages[$i].package)
+        REQUIREMENT=$(cat dependencies.json | jq -r .packages[$i].requirement)
+        SHOULD_BE_ADDED_AS_VCS=$(cat dependencies.json | jq -r .packages[$i].shouldBeAddedAsVCS)
+        if [[ $SHOULD_BE_ADDED_AS_VCS == "true" ]] ; then 
+            echo ">> Private or fork repository detected, adding VCS to Composer repositories"
+            docker exec install_dependencies composer config repositories.$(uuidgen) vcs "$REPO_URL"
+        fi
+        jq --arg package "$PACKAGE_NAME" --arg requirement "$REQUIREMENT" '.["require"] += { ($package) : ($requirement) }' composer.json > composer.json.new
+        mv composer.json.new composer.json
+    done
+fi
+
+# Install correct product variant
+docker exec install_dependencies composer require ibexa/${PROJECT_EDITION}:${PROJECT_VERSION} -W --no-scripts
+# Init a repository to avoid Composer asking questions
+git init; git add . > /dev/null;
+# Execute recipes
+docker exec install_dependencies composer recipes:install ibexa/${PROJECT_EDITION} --force --reset
+
+# Enable FriendsOfBehat SymfonyExtension in the Behat env
+sudo sed -i "s/\['test' => true\]/\['test' => true, 'behat' => true\]/g" config/bundles.php
+
+echo "> Display composer.json for debugging"
+cat composer.json
+
+# Create a default Behat configuration file
+cp "behat_ibexa_${PROJECT_EDITION}.yaml" behat.yaml
+
+# Depenencies are installed and container can be removed
+docker container stop install_dependencies
+docker container rm install_dependencies
+
+echo "> Start docker containers specified by ${COMPOSE_FILE}"
+docker-compose --env-file=.env up -d
+
+# for Behat builds to work
+echo '> Change ownership of files inside docker container'
+docker-compose --env-file=.env exec -T app sh -c 'chown -R www-data:www-data /var/www'
+
+# Rebuild container
+docker-compose --env-file=.env exec -T --user www-data app sh -c "rm -rf var/cache/*"
+echo '> Clear cache & generate assets'
+docker-compose --env-file=.env exec -T --user www-data app sh -c "composer run post-install-cmd"
+
+echo '> Install data'
+docker-compose --env-file=.env exec -T --user www-data app sh -c "php /scripts/wait_for_db.php; php bin/console ibexa:install"
+
+echo '> Generate GraphQL schema'
+docker-compose --env-file=.env exec -T --user www-data app sh -c "php bin/console ibexa:graphql:generate-schema"
+
+echo '> Done, ready to run tests'