+stt (0.2.56) -- Fri, 1 July 2016
+
+ * Change engine lib to engine process. Daemon will be used as library (Kwangyoun Kim <ky85.kim@samsung.com>)
+
+stt (0.2.55) -- Wed, 18 May 2016
+
+ * Add to get error message function and to set credential fucntion (Wonnam Jang <wn.jang@samsung.com>)
+ * Support various audio input on one branch (Wonnam Jang <wn.jang@samsung.com>)
+ * Apply sound manager stream for session managing (Kwangyoun Kim <ky85.kim@samsung.com>)
+ * Update directory path to relative path (Wonnam Jang <wn.jang@samsung.com>)
+ * Change dbus connection to private (Kwangyoun Kim <ky85.kim@samsung.com>)
+ * Update cleanup client logic (Kwangyoun Kim <ky85.kim@samsung.com>)
+
+stt (0.2.54) -- Tue, 2 Jun 2015
+
+ * Update IPC for getting volume not to use file (Dongyeol Lee <dy3.lee@samsung.com>)
+ * Remove unused smack label (Kwangyoun Kim <ky85.kim@samsung.com>)
+ * Add engine valid check (Kwangyoun Kim <ky85.kim@samsung.com>)
+ * Update daemon start by dbus activation (Dongyeol Lee <dy3.lee@samsung.com>)
+ * Update state changed callback for thread (Dongyeol Lee <dy3.lee@samsung.com>)
+ * Update IPC for rapid response time (Dongyeol Lee <dy3.lee@samsung.com>)
+
stt (0.2.53) -- Thu, 21 Aug 2014
* Remove agreement api (Dongyeol Lee <dy3.lee@samsung.com>)