diff --git a/.github/workflows/test-extensions.yml b/.github/workflows/test-extensions.yml
index e147327..2b70510 100644
--- a/.github/workflows/test-extensions.yml
+++ b/.github/workflows/test-extensions.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v1
       - name: Test extensions
-        run: ./scripts/ci-test-extensions "${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}"
+        run: ./scripts/ci-test-extensions from-commits "${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}"
   test_restoring_packages:
     name: Test restoring packages
     needs:
diff --git a/.github/workflows/test-recent-extensions.yml b/.github/workflows/test-recent-extensions.yml
new file mode 100644
index 0000000..d746067
--- /dev/null
+++ b/.github/workflows/test-recent-extensions.yml
@@ -0,0 +1,71 @@
+name: Test recent
+
+on:
+  schedule:
+    - cron: "0 */12 * * *"
+  repository_dispatch:
+    types:
+      - test-recent
+
+jobs:
+  determine_extension_list:
+    name: Determine extension list
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Retrieve recently updated extensions
+        run: ./scripts/ci-retrieve-recent-extensions >extensions-updated.txt
+      - name: Filter supported extensions
+        run: |
+          UPDATED_EXTENSIONS="$(cat extensions-updated.txt)"
+          if test -z "$UPDATED_EXTENSIONS"; then
+            EXTENSIONS_TO_TEST=''
+          else
+            EXTENSIONS_TO_TEST="$(./scripts/ci-filter-supported-extensions "$UPDATED_EXTENSIONS")"
+          fi
+          printf "$EXTENSIONS_TO_TEST" > extensions-to-test.txt
+      - name: Persist list of extensions to be tested
+        uses: actions/upload-artifact@v1
+        with:
+          name: artifact
+          path: extensions-to-test.txt
+  test_extensions:
+    runs-on: ubuntu-latest
+    needs: determine_extension_list
+    strategy:
+      matrix:
+        distro:
+          - alpine3.7
+          - alpine3.8
+          - alpine3.9
+          - alpine3.10
+          - alpine3.11
+          - jessie
+          - stretch
+          - buster
+    name: Check on ${{ matrix.distro }}
+    env:
+      DOCKER_DISTRO: ${{ matrix.distro }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Loading list of extensions to be tested
+        uses: actions/download-artifact@v1
+        with:
+          name: artifact
+      - name: Test extensions
+        run: |
+          EXTENSIONS_TO_TEST="$(cat artifact/extensions-to-test.txt)"
+          if test -z "$EXTENSIONS_TO_TEST"; then
+            echo 'No extensions to be tested'
+          else
+            ./scripts/ci-test-extensions from-list "$EXTENSIONS_TO_TEST"
+          fi
+      - name: Notify failures
+        if: failure()
+        uses: appleboy/telegram-action@master
+        with:
+          token: ${{ secrets.TELEGRAM_TOKEN }}
+          to: ${{ secrets.TELEGRAM_TO }}
+          message: Testing recent PHP packages failed on https://github.com/mlocati/docker-php-extension-installer
diff --git a/README.md b/README.md
index 75491f2..d5fcc58 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 ![Test extensions](https://github.com/mlocati/docker-php-extension-installer/workflows/Test%20extensions/badge.svg)
+![Test recent](https://github.com/mlocati/docker-php-extension-installer/workflows/Test%20recent/badge.svg)
 
 # Easy installation of PHP extensions in official PHP Docker images
 
diff --git a/scripts/ci-filter-supported-extensions b/scripts/ci-filter-supported-extensions
new file mode 100755
index 0000000..e2cd08b
--- /dev/null
+++ b/scripts/ci-filter-supported-extensions
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# Let's set a sane environment
+set -o errexit
+set -o nounset
+set -o noglob
+
+SCRIPTS_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
+. "$SCRIPTS_DIR/common"
+ROOT_DIR="$(dirname -- "$SCRIPTS_DIR")"
+DATA_DIR="$ROOT_DIR/data"
+
+EXTENSIONS_LIST="${1:-}"
+
+if test -z "$EXTENSIONS_LIST"; then
+	echo 'Extensions list not specified' >&2
+	exit 1
+fi
+
+ALL_SUPPORTED_EXTENSIONS="$(cat "$DATA_DIR/supported-extensions")"
+
+SUPPORTED_EXTENSIONS=''
+resetIFS
+for EXTENSION in $EXTENSIONS_LIST; do
+	printf 'Checking extension "%s"... ' "$EXTENSION" >&2
+	if printf '%s' "$ALL_SUPPORTED_EXTENSIONS" | grep -q "^$EXTENSION\s"; then
+		printf 'supported.\n' >&2
+		SUPPORTED_EXTENSIONS="$SUPPORTED_EXTENSIONS $EXTENSION"
+	else
+		printf 'not supported.\n' >&2
+	fi
+done
+
+printf '%s' "${SUPPORTED_EXTENSIONS# }"
diff --git a/scripts/ci-retrieve-recent-extensions b/scripts/ci-retrieve-recent-extensions
new file mode 100755
index 0000000..761cdf3
--- /dev/null
+++ b/scripts/ci-retrieve-recent-extensions
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+# Let's set a sane environment
+set -o errexit
+set -o nounset
+set -o noglob
+
+SCRIPTS_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
+. "$SCRIPTS_DIR/common"
+
+printf 'Downloading PECL feed... ' >&2
+XML="$(curl --fail  --silent --show-error --location https://pecl.php.net/feeds/latest.rss)"
+printf 'done.\n' >&2
+
+printf 'Formatting XML... ' >&2
+XML="$(printf '%s' "$XML" | tr -s ' \t\r\n' ' ' | sed -r 's# *<#\n<#g' | sed -r 's#>\n*#>\n#g' | tr -s '\n' '\n' | sed -r 's#^ +##g')"
+printf 'done.\n' >&2
+
+NUM_EXTENSIONS=0
+EXTENSIONS=''
+printf 'Detecting extension list... ' >&2
+IFS='
+'
+for XML_LINE in $XML; do
+	case "$XML_LINE" in
+		\<item\ *)
+			URL="$(printf '%s' "$XML_LINE" | sed -r 's#^.+ rdf:about\s*=\s*"##' | sed -r 's#".*$##')"
+			EXTENSION="$(printf '%s' "$URL" | sed -r 's#^.*[?%]package=##' | sed -r 's#&.*$##')"
+			if test -n "$EXTENSION" && ! stringInList "$EXTENSION" "$EXTENSIONS"; then
+				EXTENSIONS="$EXTENSIONS $EXTENSION"
+				NUM_EXTENSIONS=$((NUM_EXTENSIONS + 1))
+			fi
+			;;
+	esac
+done
+if test -z "$EXTENSIONS"; then
+	printf 'no extension found.\n' >&2
+else
+	EXTENSIONS="${EXTENSIONS# }"
+	printf '%d extension(s) found (%s)\n' $NUM_EXTENSIONS "$EXTENSIONS" >&2
+fi
+printf '%s' "$EXTENSIONS"
diff --git a/scripts/ci-test-extensions b/scripts/ci-test-extensions
index 5558a1e..43a8c38 100755
--- a/scripts/ci-test-extensions
+++ b/scripts/ci-test-extensions
@@ -252,37 +252,50 @@ testExtensionFor() {
 }
 
 echo 'Checking environment'
-if test -n "${GITHUB_WORKSPACE:-}" && test -n "${GITHUB_SHA:-}"; then
-	if test -z "${1:-}"; then
-		echo 'Missing commit range of the push event' >&2
-		exit 1
-	fi
-	CI_BUILD_DIR="$GITHUB_WORKSPACE"
-	CI_COMMIT_RANGE="$1"
-else
+if test -z "${GITHUB_WORKSPACE:-}"; then
 	echo 'Not in a CI environment' >&2
 	exit 1
 fi
+CI_BUILD_DIR="$GITHUB_WORKSPACE"
 if test -z "${DOCKER_DISTRO:-}"; then
 	echo 'DOCKER_DISTRO environment variable not set' >&2
 	exit 1
 fi
 
-. "$CI_BUILD_DIR/scripts/common"
-
-EXTENSIONS_TO_BE_TESTED=''
-STOP_EXTENSIONS_FOUND=0
-
-extractExtensionsFromCommits
-if test $STOP_EXTENSIONS_FOUND -eq 0; then
-	extractExtensionsFromData
-fi
+case "${1:-}" in
+	from-commits)
+		if test -z "${2:-}"; then
+			echo 'Missing commit range of the push event' >&2
+			exit 1
+		fi
+		CI_COMMIT_RANGE="$2"
+		STOP_EXTENSIONS_FOUND=0
+		EXTENSIONS_TO_BE_TESTED=''
+		extractExtensionsFromCommits
+		if test $STOP_EXTENSIONS_FOUND -eq 0; then
+			extractExtensionsFromData
+		fi
+		;;
+	from-list)
+		EXTENSIONS_TO_BE_TESTED="${2:-}"
+		;;
+	*)
+		if test -z "${1:-}"; then
+			printf 'Missing source of extensions to be tested\n' >&2
+		else
+			printf '"%s" is an unknown source of extensions to be tested\n' "$1" >&2
+		fi
+		exit 1
+		;;
+esac
 
 if test -z "$EXTENSIONS_TO_BE_TESTED"; then
 	echo 'No extensions to be tested.'
 	exit 0
 fi
 
+. "$CI_BUILD_DIR/scripts/common"
+
 printf '### EXTENSIONS TO BE TESTED: %s\n' "$EXTENSIONS_TO_BE_TESTED"
 SOME_TEST_FAILED=0
 IFS='
diff --git a/scripts/invoke-shfmt b/scripts/invoke-shfmt
index cd3d51f..46a78b4 100755
--- a/scripts/invoke-shfmt
+++ b/scripts/invoke-shfmt
@@ -13,17 +13,19 @@ case "${1:-}" in
 		PARAMS="$PARAMS -w"
 		;;
 	*)
-		fprintf 'Syntax: %s <check|fix>' "$0" >&2
+		printf 'Syntax: %s <check|fix>' "$0" >&2
 		exit 1
 		;;
 esac
 
 shfmt $PARAMS \
 	install-php-extensions \
+	scripts/ci-filter-supported-extensions \
+	scripts/ci-retrieve-recent-extensions \
+	scripts/ci-test-extensions \
+	scripts/ci-update-readme \
 	scripts/common \
 	scripts/invoke-shfmt \
 	scripts/lint \
 	scripts/test-restore-apt \
-	scripts/ci-test-extensions \
-	scripts/ci-update-readme \
 	scripts/update-readme