Kanboard requires at least PHP 5.6 now

vendor/symfony/console/Output/OutputInterface.php

@@ -61,6 +61,34 @@ interface OutputInterface
      */
     public function getVerbosity();
 
+    /**
+     * Returns whether verbosity is quiet (-q).
+     *
+     * @return bool true if verbosity is set to VERBOSITY_QUIET, false otherwise
+     */
+    public function isQuiet();
+
+    /**
+     * Returns whether verbosity is verbose (-v).
+     *
+     * @return bool true if verbosity is set to VERBOSITY_VERBOSE, false otherwise
+     */
+    public function isVerbose();
+
+    /**
+     * Returns whether verbosity is very verbose (-vv).
+     *
+     * @return bool true if verbosity is set to VERBOSITY_VERY_VERBOSE, false otherwise
+     */
+    public function isVeryVerbose();
+
+    /**
+     * Returns whether verbosity is debug (-vvv).
+     *
+     * @return bool true if verbosity is set to VERBOSITY_DEBUG, false otherwise
+     */
+    public function isDebug();
+
     /**
      * Sets the decorated flag.
      *
@@ -75,11 +103,6 @@ interface OutputInterface
      */
     public function isDecorated();
 
-    /**
-     * Sets output formatter.
-     *
-     * @param OutputFormatterInterface $formatter
-     */
     public function setFormatter(OutputFormatterInterface $formatter);
 
     /**