diff --git a/src/SPC/ConsoleApplication.php b/src/SPC/ConsoleApplication.php
index db03abef..598bdd10 100644
--- a/src/SPC/ConsoleApplication.php
+++ b/src/SPC/ConsoleApplication.php
@@ -15,7 +15,7 @@ use Symfony\Component\Console\Command\ListCommand;
  */
 class ConsoleApplication extends Application
 {
-    public const VERSION = '2.0-rc4';
+    public const VERSION = '2.0-rc5';
 
     /**
      * @throws \ReflectionException
diff --git a/src/SPC/command/BaseCommand.php b/src/SPC/command/BaseCommand.php
index 11ea6215..fe3775e1 100644
--- a/src/SPC/command/BaseCommand.php
+++ b/src/SPC/command/BaseCommand.php
@@ -91,7 +91,7 @@ abstract class BaseCommand extends Command
                 foreach ($msg as $v) {
                     logger()->error($v);
                 }
-                return self::FAILURE;
+                return static::FAILURE;
             } catch (\Throwable $e) {
                 // 不开 debug 模式就不要再显示复杂的调试栈信息了
                 if ($this->getOption('debug')) {
@@ -102,10 +102,10 @@ abstract class BaseCommand extends Command
                         logger()->error($v);
                     }
                 }
-                return self::FAILURE;
+                return static::FAILURE;
             }
         }
-        return self::SUCCESS;
+        return static::SUCCESS;
     }
 
     protected function getOption(string $name): mixed
diff --git a/src/SPC/command/BuildCliCommand.php b/src/SPC/command/BuildCliCommand.php
index b6cf3461..f1427ed6 100644
--- a/src/SPC/command/BuildCliCommand.php
+++ b/src/SPC/command/BuildCliCommand.php
@@ -51,7 +51,7 @@ class BuildCliCommand extends BuildCommand
             $this->output->writeln("<comment>\t--build-micro\tBuild phpmicro SAPI</comment>");
             $this->output->writeln("<comment>\t--build-fpm\tBuild php-fpm SAPI</comment>");
             $this->output->writeln("<comment>\t--build-all\tBuild all SAPI: cli, micro, fpm</comment>");
-            return 1;
+            return static::FAILURE;
         }
         try {
             // 构建对象
@@ -113,10 +113,10 @@ class BuildCliCommand extends BuildCommand
             $dumper = new LicenseDumper();
             $dumper->addExts($extensions)->addLibs($libraries)->addSources(['php-src'])->dump(BUILD_ROOT_PATH . '/license');
             logger()->info('License path' . $fixed . ': ' . $build_root_path . '/license/');
-            return 0;
+            return static::SUCCESS;
         } catch (WrongUsageException $e) {
             logger()->critical($e->getMessage());
-            return 1;
+            return static::FAILURE;
         } catch (\Throwable $e) {
             if ($this->getOption('debug')) {
                 ExceptionHandler::getInstance()->handle($e);
@@ -124,7 +124,7 @@ class BuildCliCommand extends BuildCommand
                 logger()->critical('Build failed with ' . get_class($e) . ': ' . $e->getMessage());
                 logger()->critical('Please check with --debug option to see more details.');
             }
-            return 1;
+            return static::FAILURE;
         }
     }
 }
diff --git a/src/SPC/command/BuildLibsCommand.php b/src/SPC/command/BuildLibsCommand.php
index d4a23a2a..cc1471eb 100644
--- a/src/SPC/command/BuildLibsCommand.php
+++ b/src/SPC/command/BuildLibsCommand.php
@@ -63,7 +63,7 @@ class BuildLibsCommand extends BuildCommand
 
             $time = round(microtime(true) - START_TIME, 3);
             logger()->info('Build libs complete, used ' . $time . ' s !');
-            return 0;
+            return static::SUCCESS;
         } catch (\Throwable $e) {
             if ($this->getOption('debug')) {
                 ExceptionHandler::getInstance()->handle($e);
@@ -71,7 +71,7 @@ class BuildLibsCommand extends BuildCommand
                 logger()->critical('Build failed with ' . get_class($e) . ': ' . $e->getMessage());
                 logger()->critical('Please check with --debug option to see more details.');
             }
-            return 1;
+            return static::FAILURE;
         }
     }
 }
diff --git a/src/SPC/command/DeployCommand.php b/src/SPC/command/DeployCommand.php
index dc97b035..0409f0b0 100644
--- a/src/SPC/command/DeployCommand.php
+++ b/src/SPC/command/DeployCommand.php
@@ -60,7 +60,7 @@ class DeployCommand extends BaseCommand
             $ask = $this->getOption('overwrite') ? true : $prompt->requireBool('<comment>The file "' . $phar_path . '" already exists, do you want to overwrite it?</comment>' . PHP_EOL . 'If you want to, just Enter');
             if (!$ask) {
                 $this->output->writeln('<comment>User canceled.</comment>');
-                return 1;
+                return static::FAILURE;
             }
             @unlink($phar_path);
         }
@@ -97,7 +97,7 @@ class DeployCommand extends BaseCommand
             $phar->setStub($phar->createDefaultStub($stub));
         } catch (\Throwable $e) {
             $this->output->writeln($e);
-            return 1;
+            return static::FAILURE;
         }
         $phar->addFromString('.prod', 'true');
         $phar->stopBuffering();
@@ -114,7 +114,7 @@ class DeployCommand extends BaseCommand
         }
         chmod($phar_path, 0755);
         $this->output->writeln('<info>Phar Executable: ' . $phar_path . '</info>');
-        return 0;
+        return static::SUCCESS;
     }
 
     private function progress(int $max = 0): ProgressBar
diff --git a/src/SPC/command/DoctorCommand.php b/src/SPC/command/DoctorCommand.php
index 1db5e180..eacaf26b 100644
--- a/src/SPC/command/DoctorCommand.php
+++ b/src/SPC/command/DoctorCommand.php
@@ -24,8 +24,8 @@ class DoctorCommand extends BaseCommand
         } catch (\Throwable $e) {
             $this->output->writeln('<error>' . $e->getMessage() . '</error>');
             pcntl_signal(SIGINT, SIG_IGN);
-            return 1;
+            return static::FAILURE;
         }
-        return 0;
+        return static::SUCCESS;
     }
 }
diff --git a/src/SPC/command/DownloadCommand.php b/src/SPC/command/DownloadCommand.php
index 23522fda..9d2e05a8 100644
--- a/src/SPC/command/DownloadCommand.php
+++ b/src/SPC/command/DownloadCommand.php
@@ -68,14 +68,14 @@ class DownloadCommand extends BaseCommand
                 f_passthru('rm -rf ' . DOWNLOAD_PATH . '/*');
                 f_passthru('rm -rf ' . BUILD_ROOT_PATH . '/*');
             }
-            return 0;
+            return static::FAILURE;
         }
 
         // --from-zip
         if ($path = $this->getOption('from-zip')) {
             if (!file_exists($path)) {
                 logger()->critical('File ' . $path . ' not exist or not a zip archive.');
-                return 1;
+                return static::FAILURE;
             }
             // remove old download files first
             if (is_dir(DOWNLOAD_PATH)) {
@@ -89,7 +89,7 @@ class DownloadCommand extends BaseCommand
             if (PHP_OS_FAMILY !== 'Windows' && !$this->findCommand('unzip')) {
                 logger()->critical('Missing unzip command, you need to install it first !');
                 logger()->critical('You can use "bin/spc doctor" command to check and install required tools');
-                return 1;
+                return static::FAILURE;
             }
             // create downloads
             try {
@@ -103,10 +103,10 @@ class DownloadCommand extends BaseCommand
                 }
             } catch (RuntimeException $e) {
                 logger()->critical('Extract failed: ' . $e->getMessage());
-                return 1;
+                return static::FAILURE;
             }
             logger()->info('Extract success');
-            return 0;
+            return static::SUCCESS;
         }
 
         // Define PHP major version
@@ -115,7 +115,7 @@ class DownloadCommand extends BaseCommand
         preg_match('/^\d+\.\d+$/', $ver, $matches);
         if (!$matches) {
             logger()->error("bad version arg: {$ver}, x.y required!");
-            return 1;
+            return static::FAILURE;
         }
 
         // Use shallow-clone can reduce git resource download
@@ -175,6 +175,6 @@ class DownloadCommand extends BaseCommand
         // 打印拉取资源用时
         $time = round(microtime(true) - START_TIME, 3);
         logger()->info('Download complete, used ' . $time . ' s !');
-        return 0;
+        return static::SUCCESS;
     }
 }
diff --git a/src/SPC/command/DumpLicenseCommand.php b/src/SPC/command/DumpLicenseCommand.php
index 00f6f3fd..ea4d377a 100644
--- a/src/SPC/command/DumpLicenseCommand.php
+++ b/src/SPC/command/DumpLicenseCommand.php
@@ -50,7 +50,7 @@ class DumpLicenseCommand extends BaseCommand
             $this->output->writeln('Dump license with libraries: ' . implode(', ', $libraries));
             $this->output->writeln('Dump license with' . ($this->getOption('without-php') ? 'out' : '') . ' php-src');
             $this->output->writeln('Dump target dir: ' . $this->getOption('dump-dir'));
-            return 0;
+            return static::SUCCESS;
         }
         if ($this->getOption('by-libs') !== null) {
             $libraries = array_map('trim', array_filter(explode(',', $this->getOption('by-libs'))));
@@ -58,16 +58,16 @@ class DumpLicenseCommand extends BaseCommand
             $dumper->addLibs($libraries);
             $dumper->dump($this->getOption('dump-dir'));
             $this->output->writeln('Dump target dir: ' . $this->getOption('dump-dir'));
-            return 0;
+            return static::SUCCESS;
         }
         if ($this->getOption('by-sources') !== null) {
             $sources = array_map('trim', array_filter(explode(',', $this->getOption('by-sources'))));
             $dumper->addSources($sources);
             $dumper->dump($this->getOption('dump-dir'));
             $this->output->writeln('Dump target dir: ' . $this->getOption('dump-dir'));
-            return 0;
+            return static::SUCCESS;
         }
         $this->output->writeln('You must use one of "--by-extensions=", "--by-libs=", "--by-sources=" to dump');
-        return 1;
+        return static::FAILURE;
     }
 }
diff --git a/src/SPC/command/ExtractCommand.php b/src/SPC/command/ExtractCommand.php
index f107bf5e..e9c69fdd 100644
--- a/src/SPC/command/ExtractCommand.php
+++ b/src/SPC/command/ExtractCommand.php
@@ -26,10 +26,10 @@ class ExtractCommand extends BaseCommand
         $sources = array_map('trim', array_filter(explode(',', $this->getArgument('sources'))));
         if (empty($sources)) {
             $this->output->writeln('<error>sources cannot be empty, at least contain one !</error>');
-            return 1;
+            return static::FAILURE;
         }
         SourceExtractor::initSource(sources: $sources);
         logger()->info('Extract done !');
-        return 0;
+        return static::SUCCESS;
     }
 }
diff --git a/src/SPC/command/ListExtCommand.php b/src/SPC/command/ListExtCommand.php
index f12466db..d8547f07 100644
--- a/src/SPC/command/ListExtCommand.php
+++ b/src/SPC/command/ListExtCommand.php
@@ -21,6 +21,6 @@ class ListExtCommand extends BaseCommand
         foreach (Config::getExts() as $ext => $meta) {
             echo $ext . PHP_EOL;
         }
-        return 0;
+        return static::SUCCESS;
     }
 }
diff --git a/src/SPC/command/MicroCombineCommand.php b/src/SPC/command/MicroCombineCommand.php
index 2da6df49..2c209033 100644
--- a/src/SPC/command/MicroCombineCommand.php
+++ b/src/SPC/command/MicroCombineCommand.php
@@ -35,12 +35,12 @@ class MicroCombineCommand extends BaseCommand
         // 1. Make sure specified micro.sfx file exists
         if ($micro_file !== null && !file_exists($micro_file)) {
             $this->output->writeln('<error>The micro.sfx file you specified is incorrect or does not exist!</error>');
-            return 1;
+            return static::FAILURE;
         }
         // 2. Make sure buildroot/bin/micro.sfx exists
         if ($micro_file === null && !file_exists($internal)) {
             $this->output->writeln('<error>You haven\'t compiled micro.sfx yet, please use "build" command and "--build-micro" to compile phpmicro first!</error>');
-            return 1;
+            return static::FAILURE;
         }
         // 3. Use buildroot/bin/micro.sfx
         if ($micro_file === null) {
@@ -49,19 +49,19 @@ class MicroCombineCommand extends BaseCommand
         // 4. Make sure php or phar file exists
         if (!is_file(FileSystem::convertPath($file))) {
             $this->output->writeln('<error>The file to combine does not exist!</error>');
-            return 1;
+            return static::FAILURE;
         }
         // 5. Confirm ini files (ini-set has higher priority)
         if ($ini_file !== null) {
             // Check file exist first
             if (!file_exists($ini_file)) {
                 $this->output->writeln('<error>The ini file to combine does not exist! (' . $ini_file . ')</error>');
-                return 1;
+                return static::FAILURE;
             }
             $arr = parse_ini_file($ini_file);
             if ($arr === false) {
                 $this->output->writeln('<error>Cannot parse ini file</error>');
-                return 1;
+                return static::FAILURE;
             }
             $target_ini = array_merge($target_ini, $arr);
         }
@@ -71,7 +71,7 @@ class MicroCombineCommand extends BaseCommand
                 $arr = parse_ini_string($item);
                 if ($arr === false) {
                     $this->output->writeln('<error>--with-ini-set parse failed</error>');
-                    return 1;
+                    return static::FAILURE;
                 }
                 $target_ini = array_merge($target_ini, $arr);
             }
@@ -90,12 +90,12 @@ class MicroCombineCommand extends BaseCommand
         $result = file_put_contents($output, $file_target);
         if ($result === false) {
             $this->output->writeln('<error>Combine failed.</error>');
-            return 1;
+            return static::FAILURE;
         }
         // 9. chmod +x
         chmod($output, 0755);
         $this->output->writeln('<info>Combine success! Binary file: ' . $output . '</info>');
-        return 0;
+        return static::SUCCESS;
     }
 
     private function encodeINI(array $array): string
diff --git a/src/SPC/command/SortConfigCommand.php b/src/SPC/command/SortConfigCommand.php
index 3de55770..579b2a89 100644
--- a/src/SPC/command/SortConfigCommand.php
+++ b/src/SPC/command/SortConfigCommand.php
@@ -52,6 +52,6 @@ class SortConfigCommand extends BaseCommand
                 return 1;
         }
         $this->output->writeln('<info>sort success</info>');
-        return 0;
+        return static::SUCCESS;
     }
 }
diff --git a/src/SPC/command/dev/AllExtCommand.php b/src/SPC/command/dev/AllExtCommand.php
index 253e1d79..e04a984d 100644
--- a/src/SPC/command/dev/AllExtCommand.php
+++ b/src/SPC/command/dev/AllExtCommand.php
@@ -18,7 +18,6 @@ class AllExtCommand extends BaseCommand
     public function handle(): int
     {
         $this->output->writeln(implode(',', array_keys(Config::getExts())));
-
-        return 0;
+        return static::SUCCESS;
     }
 }
diff --git a/src/SPC/command/dev/ExtInfoCommand.php b/src/SPC/command/dev/ExtInfoCommand.php
index d45478c8..1175b2af 100644
--- a/src/SPC/command/dev/ExtInfoCommand.php
+++ b/src/SPC/command/dev/ExtInfoCommand.php
@@ -37,7 +37,6 @@ class ExtInfoCommand extends BaseCommand
             }
             $this->output->writeln('');
         }
-
-        return 0;
+        return static::SUCCESS;
     }
 }
diff --git a/src/SPC/command/dev/PhpVerCommand.php b/src/SPC/command/dev/PhpVerCommand.php
index 9b729da2..b307f1c5 100644
--- a/src/SPC/command/dev/PhpVerCommand.php
+++ b/src/SPC/command/dev/PhpVerCommand.php
@@ -25,9 +25,9 @@ class PhpVerCommand extends BaseCommand
         $result = preg_match('/#define PHP_VERSION "([^"]+)"/', file_get_contents($file), $match);
         if ($result === false) {
             $this->output->writeln('<error>PHP source not found, maybe you need to extract first ?</error>');
-            return 1;
+            return static::FAILURE;
         }
         $this->output->writeln('<info>' . $match[1] . '</info>');
-        return 0;
+        return static::SUCCESS;
     }
 }