The following changed and improvements have been made to the FW1.2.4 compared to the FW1.2.1. 1. Added the USB DAC adaption to Mac computers; 2. Added Italian language support; 3. Improved the random stutter issue when playing some APE tracks locally; 4. Changed the "Reset media library" option (under System settings) to "Reset database" (you can use this option to reset the media library and also the Bluetooth data); 5. Miscellaneous improvements and bug fixes. How to upgrade: Click here. Please visit the X3MKIII support page and download the firmware 1.2.4 from the "Download" section at the bottom right of the page. Spoiler: Information for order firmware Updated on 2017-01-31 The following changes and improvements have been made to the FW1.2.1 compared to the FW1.1.4： 1. Fixed issue where the player might crash with black screen sometimes when entering the Category menu or pressing the Return button; 2. Fixed issue where there would be white noise or abnormal sound output when adjusting the Custom Equalizer; 3. Fixed issue where the left and right channel might get reversed for the coaxial output after certain operations; 4. Fixed issue where Artist and Album info of the .iso tracks could not be correctly recognized; 5. Fixed issue where the sleep timer would still take effect when the player was connected to the computer in Storage mode; 6. Fixed issue where the UI display might be incorrect in some cases; 7. Miscellaneous bug fixes. Firmware download: Click here. (Download the firmware 1.2.1 from the "Download" section at the bottom right of the page) How to upgrade: Click here. Updated on 2017-09-29 The following changes and improvements have been made to the firmware FW1.1.4 compared to the FW1.0.3. 1. Added Gapless playback function (can be enabled in "Play settings->Playback gap"); 2. Fixed issue where the beginning of the track might be cut when switching songs or playing right after starting up; 3. Fixed issue where the player might crash when pressing the Return button after adding tracks to a new playlist; 4. Fixed issue where a few particular tracks could not be added to the Favorites list; 5. Fixed issue where there might be no sound or abnormal sound output in a few cases; 6. Fixed issue where the volume through headphone output could not be adjusted while in USB DAC mode if the "Line out mode" was set to "Fixed level"; 7. Miscellaneous bug fixes. Firmware download: Click here. How to upgrade: Click here.