diff --git a/.github/workflows/workflow.yml b/.github/workflows/workflow.yml
index 437a08a..5ed6d87 100644
--- a/.github/workflows/workflow.yml
+++ b/.github/workflows/workflow.yml
@@ -93,7 +93,7 @@ jobs:
       shell: bash
     - run: ./setup.sh -t -p -n 0 any               | grep 'beta'
       shell: bash
-    - run: ./setup.sh -t -p -n 0 any               | grep 'v0.11.13'
+    - run: ./setup.sh -t -p -n 0 any               | grep '0.11.13'
       shell: bash
     - run: ./setup.sh -t -p                        | grep 'flutter-macos-stable-3.7.7-x64-2ad6cd72c040113b47ee9055e722606a490ef0da'
       shell: bash
@@ -105,7 +105,7 @@ jobs:
       shell: bash
     - run: ./setup.sh -t -p -n 1 any               | grep 'flutter-macos-beta-1.26.0-17.8.pre-x64-044f2cf5607a26f8818dab0f766400e85c52bdff'
       shell: bash
-    - run: ./setup.sh -t -p -n 0 any               | grep 'flutter-macos-beta-v0.11.13-x64-58c8489fcdb4e4ef6c010117584c9b23d15221aa'
+    - run: ./setup.sh -t -p -n 0 any               | grep 'flutter-macos-beta-0.11.13-x64-58c8489fcdb4e4ef6c010117584c9b23d15221aa'
       shell: bash
     - run: ./setup.sh -t -p                        | grep '/Users/runner/work/_temp/flutter/stable-3.7.7-x64'
       shell: bash
diff --git a/README.md b/README.md
index 026cc7d..9779b1f 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ steps:
 - uses: actions/checkout@v3
 - uses: subosito/flutter-action@v2
   with:
-    flutter-version: '3.0.5'
+    flutter-version: '3.7.7'
     channel: 'stable'
 - run: flutter --version
 ```
@@ -23,7 +23,7 @@ steps:
 - uses: actions/checkout@v3
 - uses: subosito/flutter-action@v2
   with:
-    channel: 'stable' # or: 'beta', 'dev' or 'master'
+    channel: 'stable' # or: 'beta' or 'dev'
 - run: flutter --version
 ```
 
@@ -34,7 +34,7 @@ steps:
 - uses: actions/checkout@v3
 - uses: subosito/flutter-action@v2
   with:
-    flutter-version: '1.22.x' # or, you can use 1.22
+    flutter-version: '1.22.x'
     channel: 'dev'
 - run: flutter --version
 ```
@@ -62,7 +62,7 @@ steps:
     java-version: '11'
 - uses: subosito/flutter-action@v2
   with:
-    flutter-version: '3.0.5'
+    flutter-version: '3.7.7'
 - run: flutter pub get
 - run: flutter test
 - run: flutter build apk
diff --git a/setup.sh b/setup.sh
index 7e9ebb0..a2eae93 100755
--- a/setup.sh
+++ b/setup.sh
@@ -11,41 +11,19 @@ fi
 
 OS_NAME=$(echo "$RUNNER_OS" | awk '{print tolower($0)}')
 MANIFEST_BASE_URL="https://storage.googleapis.com/flutter_infra_release/releases"
-MANIFEST_URL="$MANIFEST_BASE_URL/releases_$OS_NAME.json"
-MANIFEST_TEST_FIXTURE="$(dirname -- "${BASH_SOURCE[0]}")/test/releases_$OS_NAME.json"
+MANIFEST_JSON_PATH="releases_$OS_NAME.json"
+MANIFEST_URL="$MANIFEST_BASE_URL/$MANIFEST_JSON_PATH"
 
-legacy_wildcard_version() {
-	if [[ $1 == any ]]; then
-		jq --arg version "$2" '.releases | map(select(.version | startswith($version) )) | first'
-	else
-		jq --arg channel "$1" --arg version "$2" '.releases | map(select(.channel==$channel) | select(.version | startswith($version) )) | first'
-	fi
+filter_by_channel() {
+	jq --arg channel "$1" '[.releases[] | select($channel == "any" or .channel == $channel)]'
 }
 
-wildcard_version() {
-	if [[ $1 == any ]]; then
-		jq --arg version "$2" --arg arch "$3" '.releases | map(select(.version | startswith($version)) | select(.dart_sdk_arch == null or .dart_sdk_arch == $arch)) | first'
-	else
-		jq --arg channel "$1" --arg version "$2" --arg arch "$3" '.releases | map(select(.channel==$channel) | select(.version | startswith($version) ) | select(.dart_sdk_arch == null or .dart_sdk_arch == $arch)) | first'
-	fi
+filter_by_arch() {
+	jq --arg dart_sdk_arch "$1" '[.[] | select(.dart_sdk_arch? | (., "x64") | index($dart_sdk_arch))]'
 }
 
-get_version() {
-	if [[ "$1" == any && "$2" == any ]]; then # latest_version
-		jq --arg arch "$3" '.releases | map(select(.dart_sdk_arch == null or .dart_sdk_arch == $arch)) | first'
-	elif [[ "$2" == any ]]; then # latest channel version
-		jq --arg channel "$1" --arg arch "$3" '.releases | map(select(.channel==$channel) | select(.dart_sdk_arch == null or .dart_sdk_arch == $arch)) | first'
-	else
-		wildcard_version "$1" "$2" "$3"
-	fi
-}
-
-normalize_version() {
-	if [[ "$1" == *.x ]]; then
-		echo "${1/.x/}"
-	else
-		echo "$1"
-	fi
+filter_by_version() {
+	jq --arg version "$1" '.[].version |= gsub("^v"; "") | (if $version == "any" then .[0] else (map(select(.version == $version or (.version | startswith(($version | sub("\\.x$"; "")) + ".")) and .version != $version)) | .[0]) end)'
 }
 
 not_found_error() {
@@ -86,8 +64,8 @@ download_archive() {
 
 CACHE_PATH=""
 CACHE_KEY=""
-PRINT_MODE=""
-USE_TEST_FIXTURE=false
+PRINT_ONLY=""
+TEST_MODE=false
 ARCH=""
 VERSION=""
 
@@ -95,8 +73,8 @@ while getopts 'tc:k:pa:n:' flag; do
 	case "$flag" in
 	c) CACHE_PATH="$OPTARG" ;;
 	k) CACHE_KEY="$OPTARG" ;;
-	p) PRINT_MODE=true ;;
-	t) USE_TEST_FIXTURE=true ;;
+	p) PRINT_ONLY=true ;;
+	t) TEST_MODE=true ;;
 	a) ARCH="$(echo "$OPTARG" | awk '{print tolower($0)}')" ;;
 	n) VERSION="$OPTARG" ;;
 	?) exit 2 ;;
@@ -112,34 +90,23 @@ CHANNEL="${ARR_CHANNEL[0]}"
 [[ -z $CACHE_PATH ]] && CACHE_PATH="$RUNNER_TEMP/flutter/:channel:-:version:-:arch:"
 [[ -z $CACHE_KEY ]] && CACHE_KEY="flutter-:os:-:channel:-:version:-:arch:-:hash:"
 
-RELEASE_MANIFEST=""
-VERSION_MANIFEST=""
+if [[ "$TEST_MODE" == true ]]; then
+	RELEASE_MANIFEST=$(cat "$(dirname -- "${BASH_SOURCE[0]}")/test/$MANIFEST_JSON_PATH")
+else
+	RELEASE_MANIFEST=$(curl --silent --connect-timeout 15 --retry 5 "$MANIFEST_URL")
+fi
 
-get_version_manifest() {
-	version_normalized=$(normalize_version "$VERSION")
-	version_manifest=$(echo "$RELEASE_MANIFEST" | get_version "$CHANNEL" "$version_normalized" "$ARCH")
+VERSION_MANIFEST=$(echo "$RELEASE_MANIFEST" | filter_by_channel "$CHANNEL" | filter_by_arch "$ARCH" | filter_by_version "$VERSION")
 
-	if [[ "$version_manifest" == null ]]; then
-		version_manifest=$(echo "$RELEASE_MANIFEST" | legacy_wildcard_version "$CHANNEL" "v$version_normalized")
-	fi
-
-	version_arch=$(echo "$version_manifest" | jq -r '.dart_sdk_arch')
-
-	if [[ "$version_arch" == null ]]; then
-		if [[ "$ARCH" == x64 ]]; then
-			echo "$version_manifest" | jq --arg dart_sdk_arch x64 '.+={dart_sdk_arch:$dart_sdk_arch}'
-		else
-			echo ""
-		fi
-	else
-		echo "$version_manifest"
-	fi
-}
+if [[ "$VERSION_MANIFEST" == *null* ]]; then
+	not_found_error "$CHANNEL" "$VERSION" "$ARCH"
+	exit 1
+fi
 
 expand_key() {
 	version_channel=$(echo "$VERSION_MANIFEST" | jq -r '.channel')
 	version_version=$(echo "$VERSION_MANIFEST" | jq -r '.version')
-	version_arch=$(echo "$VERSION_MANIFEST" | jq -r '.dart_sdk_arch')
+	version_arch=$(echo "$VERSION_MANIFEST" | jq -r '.dart_sdk_arch // "x64"')
 	version_hash=$(echo "$VERSION_MANIFEST" | jq -r '.hash')
 	version_sha_256=$(echo "$VERSION_MANIFEST" | jq -r '.sha256')
 
@@ -153,44 +120,22 @@ expand_key() {
 	echo "$expanded_key"
 }
 
-if [[ "$PRINT_MODE" == true ]]; then
-	if [[ "$USE_TEST_FIXTURE" == true ]]; then
-		RELEASE_MANIFEST=$(cat "$MANIFEST_TEST_FIXTURE")
-	else
-		RELEASE_MANIFEST=$(curl --silent --connect-timeout 15 --retry 5 "$MANIFEST_URL")
-	fi
+CACHE_KEY=$(expand_key "$CACHE_KEY")
+CACHE_PATH=$(expand_key "$(transform_path "$CACHE_PATH")")
 
-	if [[ "$CHANNEL" == master ]]; then
-		VERSION_MANIFEST="{\"channel\":\"$CHANNEL\",\"version\":\"$CHANNEL\",\"dart_sdk_arch\":\"$ARCH\",\"hash\":\"$CHANNEL\",\"sha256\":\"$CHANNEL\"}"
-	else
-		VERSION_MANIFEST=$(get_version_manifest)
-	fi
-
-	if [[ -z "$VERSION_MANIFEST" ]]; then
-		not_found_error "$CHANNEL" "$VERSION" "$ARCH"
-		exit 1
-	fi
-
-	version_info=$(echo "$VERSION_MANIFEST" | jq -j '.channel,":",.version,":",.dart_sdk_arch')
-
-	if [[ "$version_info" == *null* ]]; then
-		not_found_error "$CHANNEL" "$VERSION" "$ARCH"
-		exit 1
-	fi
+if [[ "$PRINT_ONLY" == true ]]; then
+	version_info=$(echo "$VERSION_MANIFEST" | jq -j '.channel,":",.version,":",.dart_sdk_arch // "x64"')
 
 	info_channel=$(echo "$version_info" | awk -F ':' '{print $1}')
 	info_version=$(echo "$version_info" | awk -F ':' '{print $2}')
 	info_architecture=$(echo "$version_info" | awk -F ':' '{print $3}')
-	expanded_key=$(expand_key "$CACHE_KEY")
-	cache_path=$(transform_path "$CACHE_PATH")
-	expanded_path=$(expand_key "$cache_path")
 
-	if [[ "$USE_TEST_FIXTURE" == true ]]; then
+	if [[ "$TEST_MODE" == true ]]; then
 		echo "CHANNEL=$info_channel"
 		echo "VERSION=$info_version"
 		echo "ARCHITECTURE=$info_architecture"
-		echo "CACHE-KEY=$expanded_key"
-		echo "CACHE-PATH=$expanded_path"
+		echo "CACHE-KEY=$CACHE_KEY"
+		echo "CACHE-PATH=$CACHE_PATH"
 		exit 0
 	fi
 
@@ -199,40 +144,22 @@ if [[ "$PRINT_MODE" == true ]]; then
 		echo "VERSION=$info_version"
 		echo "ARCHITECTURE=$info_architecture"
 		echo "CACHE-KEY=$expanded_key"
-		echo "CACHE-PATH=$expanded_path"
-	} >> "$GITHUB_OUTPUT"
-
-	exit 0
+		echo "CACHE-PATH=$CACHE_PATH"
+	} >>"$GITHUB_OUTPUT"
 fi
 
-CACHE_PATH=$(transform_path "$CACHE_PATH")
-SDK_CACHE=$(expand_key "$CACHE_PATH")
-PUB_CACHE=$(expand_key "$SDK_CACHE/.pub-cache")
-
-if [[ ! -x "$SDK_CACHE/bin/flutter" ]]; then
-	if [[ $CHANNEL == master ]]; then
-		git clone -b master https://github.com/flutter/flutter.git "$SDK_CACHE"
-	else
-		RELEASE_MANIFEST=$(curl --silent --connect-timeout 15 --retry 5 "$MANIFEST_URL")
-		VERSION_MANIFEST=$(get_version_manifest)
-
-		if [[ -z "$VERSION_MANIFEST" ]]; then
-			not_found_error "$CHANNEL" "$VERSION" "$ARCH"
-			exit 1
-		fi
-
-		ARCHIVE_PATH=$(echo "$VERSION_MANIFEST" | jq -r '.archive')
-		download_archive "$ARCHIVE_PATH" "$SDK_CACHE"
-	fi
+if [[ ! -x "$CACHE_PATH/bin/flutter" ]]; then
+	archive_url=$(echo "$VERSION_MANIFEST" | jq -r '.archive')
+	download_archive "$archive_url" "$CACHE_PATH"
 fi
 
 {
-	echo "FLUTTER_ROOT=$SDK_CACHE"
-	echo "PUB_CACHE=$PUB_CACHE"
+	echo "FLUTTER_ROOT=$CACHE_PATH"
+	echo "PUB_CACHE=$CACHE_PATH/.pub-cache"
 } >>"$GITHUB_ENV"
 
 {
-	echo "$SDK_CACHE/bin"
-	echo "$SDK_CACHE/bin/cache/dart-sdk/bin"
-	echo "$PUB_CACHE/bin"
+	echo "$CACHE_PATH/bin"
+	echo "$CACHE_PATH/bin/cache/dart-sdk/bin"
+	echo "$CACHE_PATH/.pub-cache/bin"
 } >>"$GITHUB_PATH"