diff --git a/.github/workflows/test-extensions.yml b/.github/workflows/test-extensions.yml
index 06662fb..2533327 100644
--- a/.github/workflows/test-extensions.yml
+++ b/.github/workflows/test-extensions.yml
@@ -51,6 +51,7 @@ jobs:
           - alpine3.9
           - alpine3.10
           - alpine3.11
+          - alpine3.12
           - jessie
           - stretch
           - buster
diff --git a/data/special-requirements b/data/special-requirements
index 9b5a884..a7666b6 100644
--- a/data/special-requirements
+++ b/data/special-requirements
@@ -1,3 +1,4 @@
 parallel zts
 pthreads zts
 tdlib !alpine3.7 !jessie
+enchant !7.2-alpine3.12 !7.3-alpine3.12 !7.4-alpine3.12
diff --git a/data/supported-extensions b/data/supported-extensions
index fedce51..0337d06 100644
--- a/data/supported-extensions
+++ b/data/supported-extensions
@@ -1,81 +1,81 @@
 amqp 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-apcu 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-apcu_bc 7.0 7.1 7.2 7.3 7.4
-bcmath 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-bz2 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-calendar 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+apcu 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+apcu_bc 7.0 7.1 7.2 7.3 7.4 8.0
+bcmath 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+bz2 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+calendar 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 cmark 7.0 7.1 7.2 7.3 7.4
-dba 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+dba 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 decimal 7.0 7.1 7.2 7.3 7.4
-enchant 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-exif 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-ffi 7.4
-gd 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-gettext 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+enchant 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+exif 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+ffi 7.4 8.0
+gd 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+gettext 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 gmagick 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-gmp 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+gmp 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 grpc 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 http 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-igbinary 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+igbinary 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 imagick 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-imap 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+imap 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 interbase 5.5 5.6 7.0 7.1 7.2 7.3
-intl 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-ldap 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-mailparse 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+intl 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+ldap 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+mailparse 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 mcrypt 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 memcache 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-memcached 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+memcached 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 mongo 5.5 5.6
 mongodb 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 msgpack 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 mssql 5.5 5.6
 mysql 5.5 5.6
-mysqli 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+mysqli 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 oauth 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 odbc 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-opcache 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+opcache 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 opencensus 7.0 7.1 7.2 7.3 7.4
 parallel 7.1 7.2 7.3 7.4
-pcntl 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-pcov 7.0 7.1 7.2 7.3 7.4
+pcntl 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+pcov 7.0 7.1 7.2 7.3 7.4 8.0
 pdo_dblib 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-pdo_firebird 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-pdo_mysql 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-pdo_odbc 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-pdo_pgsql 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+pdo_firebird 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+pdo_mysql 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+pdo_odbc 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+pdo_pgsql 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 pdo_sqlsrv 7.0 7.1 7.2 7.3 7.4
-pgsql 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+pgsql 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 propro 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-protobuf 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-pspell 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+protobuf 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+pspell 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 pthreads 5.5 5.6 7.0
-raphf 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+raphf 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 rdkafka 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 recode 5.5 5.6 7.0 7.1 7.2 7.3
 redis 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-shmop 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+shmop 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 snuffleupagus 7.0 7.1 7.2 7.3 7.4
-snmp 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-soap 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-sockets 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-solr 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+snmp 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+soap 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+sockets 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+solr 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 sqlsrv 7.0 7.1 7.2 7.3 7.4
 ssh2 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 sybase_ct 5.5 5.6
-sysvmsg 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-sysvsem 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-sysvshm 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+sysvmsg 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+sysvsem 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+sysvshm 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 tdlib 7.0 7.1 7.2 7.3 7.4
-tidy 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-timezonedb 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+tidy 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
+timezonedb 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 uopz 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-uuid 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+uuid 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 wddx 5.5 5.6 7.0 7.1 7.2 7.3
 xdebug 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 xhprof 5.5 5.6 7.0 7.1 7.2 7.3 7.4
 xmlrpc 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-xsl 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+xsl 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 yaml 5.5 5.6 7.0 7.1 7.2 7.3 7.4
-zip 5.5 5.6 7.0 7.1 7.2 7.3 7.4
+zip 5.5 5.6 7.0 7.1 7.2 7.3 7.4 8.0
 zookeeper 5.5 5.6 7.0 7.1 7.2 7.3 7.4
diff --git a/install-php-extensions b/install-php-extensions
index 8da564e..35989bf 100755
--- a/install-php-extensions
+++ b/install-php-extensions
@@ -27,7 +27,9 @@ setDistro() {
 		exit 1
 	fi
 	DISTRO="$(cat /etc/os-release | grep -E ^ID= | cut -d = -f 2)"
-	DISTRO_VERSION="$(printf '%s@%s' $DISTRO $(cat /etc/os-release | grep -E ^VERSION_ID= | cut -d = -f 2 | cut -d '"' -f 2 | cut -d . -f 1,2))"
+	DISTRO_VERSION_NUMBER="$(cat /etc/os-release | grep -E ^VERSION_ID= | cut -d = -f 2 | cut -d '"' -f 2 | cut -d . -f 1,2)"
+	DISTRO_VERSION="$(printf '%s@%s' $DISTRO $DISTRO_VERSION_NUMBER)"
+	DISTRO_MAJMIN_VERSION="$(echo "$DISTRO_VERSION_NUMBER" | awk -F. '{print $1*100+$2}')"
 }
 
 # Set the PHP_MAJMIN_VERSION variable containing the PHP Major-Minor version as an integer value, in format MMmm (example: 506 for PHP 5.6.15)
@@ -241,8 +243,13 @@ buildRequiredPackageLists() {
 				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile libmpdec-dev"
 				;;
 			enchant@alpine)
-				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent enchant"
-				buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile enchant-dev"
+				if test $DISTRO_MAJMIN_VERSION -ge 312; then
+					buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent enchant2"
+					buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile enchant2-dev"
+				else
+					buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent enchant"
+					buildRequiredPackageLists_volatile="$buildRequiredPackageLists_volatile enchant-dev"
+				fi
 				;;
 			enchant@debian)
 				buildRequiredPackageLists_persistent="$buildRequiredPackageLists_persistent libenchant1c2a"
@@ -1355,8 +1362,7 @@ installPECLModule() {
 		if test "$1" != "$installPECLModule_actual"; then
 			printf '  (installing version %s)\n' "$installPECLModule_actual"
 		fi
-		pecl channel-update pecl.php.net || true
-		printf "$installPECLModule_stdin" | MAKE="make -j$(getCompilationProcessorCount $1)" pecl install "$installPECLModule_actual"
+		printf "$installPECLModule_stdin" | MAKE="make -j$(getCompilationProcessorCount $1)" $PECL_COMMAND "$installPECLModule_actual"
 	fi
 	case "$1" in
 		apcu_bc)
@@ -1377,6 +1383,27 @@ installPECLModule() {
 	esac
 }
 
+# Installs pickle to use instead of pecl
+# and add the zip extension that it requires, making sure its installed first
+installPickle() {
+	for PHP_MODULE_TO_INSTALL in $PHP_MODULES_TO_INSTALL; do
+		if ! stringInList "$PHP_MODULE_TO_INSTALL" "$BUNDLED_MODULES"; then
+			if test $PHP_MAJMIN_VERSION -lt 800; then
+				pecl channel-update pecl.php.net || true
+				PECL_COMMAND="pecl install"
+				return
+			fi
+			curl -L -f https://github.com/FriendsOfPHP/pickle/releases/latest/download/pickle.phar -o /tmp/pickle
+			chmod +x /tmp/pickle
+			if ! stringInList 'zip' "$(getPHPInstalledModules)"; then
+				PHP_MODULES_TO_INSTALL="zip $(removeStringFromList 'zip' "$PHP_MODULES_TO_INSTALL")"
+			fi
+			PECL_COMMAND="/tmp/pickle install --defaults"
+			return
+		fi
+	done
+}
+
 # Check if a string is in a list of space-separated string
 #
 # Arguments:
@@ -1457,6 +1484,7 @@ cleanup() {
 	docker-php-source delete
 	rm -rf /tmp/pear
 	rm -rf /tmp/src
+	rm -rf /tmp/pickle
 }
 
 resetIFS
@@ -1465,7 +1493,7 @@ IPE_ERRFLAG_FILE="$(mktemp -p /tmp/src)"
 setDistro
 setPHPMajorMinor
 case "$PHP_MAJMIN_VERSION" in
-	505 | 506 | 700 | 701 | 702 | 703 | 704) ;;
+	505 | 506 | 700 | 701 | 702 | 703 | 704 | 800) ;;
 	*)
 		printf "### ERROR: Unsupported PHP version: %s.%s ###\n" $((PHP_MAJMIN_VERSION / 100)) $((PHP_MAJMIN_VERSION % 100))
 		;;
@@ -1479,12 +1507,14 @@ fi
 
 sortModulesToInstall
 
+docker-php-source extract
+BUNDLED_MODULES="$(find /usr/src/php/ext -mindepth 2 -maxdepth 2 -type f -name 'config.m4' | xargs -n1 dirname | xargs -n1 basename | xargs)"
+installPickle
+
 buildRequiredPackageLists $PHP_MODULES_TO_INSTALL
 if test -n "$PACKAGES_PERSISTENT$PACKAGES_VOLATILE"; then
 	installRequiredPackages
 fi
-docker-php-source extract
-BUNDLED_MODULES="$(find /usr/src/php/ext -mindepth 2 -maxdepth 2 -type f -name 'config.m4' | xargs -n1 dirname | xargs -n1 basename | xargs)"
 for PHP_MODULE_TO_INSTALL in $PHP_MODULES_TO_INSTALL; do
 	if stringInList "$PHP_MODULE_TO_INSTALL" "$BUNDLED_MODULES"; then
 		installBundledModule "$PHP_MODULE_TO_INSTALL"
diff --git a/scripts/ci-test-extensions b/scripts/ci-test-extensions
index 47ba0e6..a0d17cf 100755
--- a/scripts/ci-test-extensions
+++ b/scripts/ci-test-extensions
@@ -109,6 +109,9 @@ filterUnsupportedExensionsForDistro() {
 # the full docker image ID
 getDockerImageName() {
 	case "$2" in
+		8.0)
+			getDockerImageName_version="$2-rc"
+			;;
 		*)
 			getDockerImageName_version="$2"
 			;;
@@ -154,6 +157,10 @@ getDockerImageName() {
 # Outputs:
 # the space-separated list of supported PHP versions
 getAllPHPVersionsForExtensions() {
+	if test -n "${PHP_VERSION_TO_TEST:-}"; then
+		echo "$PHP_VERSION_TO_TEST"
+		return
+	fi
 	getAllPHPVersionsForExtensions_result=''
 	IFS=' '
 	for getAllPHPVersionsForExtensions_extension in $1; do
@@ -208,7 +215,22 @@ getAllPHPVersionsForExtension() {
 			fi
 		done
 	done <"$CI_BUILD_DIR/data/supported-extensions"
-	printf '%s' "$getAllPHPVersionsForExtension_result"
+
+	filterUnsupportedExensionsForDistro_reqs="$CI_BUILD_DIR/data/special-requirements"
+	if test -f "$filterUnsupportedExensionsForDistro_reqs"; then
+		getAllPHPVersionsForExtension_filtered_result=''
+		for getAllPHPVersionsForExtension_result_filter in $getAllPHPVersionsForExtension_result; do
+			if stringInList "!$getAllPHPVersionsForExtension_result_filter-$DOCKER_DISTRO" "$(cat "$filterUnsupportedExensionsForDistro_reqs" | grep -E "^$1[ \t]")"; then
+				printf 'Note: extension "%s" is not supported for distro "%s" using php "%s"\n' "$1" "$DOCKER_DISTRO" "$getAllPHPVersionsForExtension_result_filter" >/dev/stderr
+			else
+				getAllPHPVersionsForExtension_filtered_result="$getAllPHPVersionsForExtension_filtered_result $getAllPHPVersionsForExtension_result_filter"
+			fi
+		done
+	else
+		getAllPHPVersionsForExtension_filtered_result="$getAllPHPVersionsForExtension_result"
+	fi
+
+	printf '%s' "${getAllPHPVersionsForExtension_filtered_result# }"
 }
 
 # Test extensions
diff --git a/scripts/tests/gd.php b/scripts/tests/gd.php
index f7b562b..e9406a0 100644
--- a/scripts/tests/gd.php
+++ b/scripts/tests/gd.php
@@ -55,7 +55,7 @@ try {
         $image2 = $loadFuntion($tempFile);
         unlink($tempFile);
         $tempFile = null;
-        if (!is_resource($image2) || imagesx($image2) !== $imageWidth || imagesy($image2) !== $imageHeight) {
+        if (!(is_resource($image2) || is_object($image2)) || imagesx($image2) !== $imageWidth || imagesy($image2) !== $imageHeight) {
             throw new Exception("{$loadFuntion}() failed");
         }
         imagedestroy($image2);