CHANGE HISTORY: Version 1040-8000-1050-0010 - Improve playback stability for Chromecast Built-in. - Improve playback stability for Airplay. - Improve the playability for certain WAV files. Version 1040-7000-1050-0010 - Support AirPlay2. - Add setting to switch ''Standard'' and ''Enhanced'' according to HDMI 4K signal format. - http://jp.pioneer-audiovisual.com/manual/vsx933/supple_933.pdf - Minor bug fixes and improvements stability. Version 1030-6000-1040-0010 - Minor bug fixes and improvements stability. Version 1030-5000-1040-0010 - Adds support for Amazon Music. Amazon Music service requires that you have Amazon Prime account or Amazon Music Unlimited account Pioneer Remote App is required for initial set-up of Amazon Music. For detail about updated function, please refer to the link below. http://jp.pioneer-audiovisual.com/manual/sup/upd/amazon_pio.pdf - Adds setting of Preset Volume for Sonos Connect. For detail about updated function, please refer to the link below. http://jp.pioneer-audiovisual.com/manual/sup/upd/sonosconnect_pio.pdf - Enhanced security. Depending on the Firmware version, update will be needed 2 times. - Minor bug fixes and improvements stability. Version 1020-4000-0030-0010 - Enhanced security. - Adds support for Deezer HiFi. - Depending on the Firmware version, update will be needed 2 times. - Minor bug fixes and improvements stability. Version 1010-3000-0030-0010 - Adds support for Sonos Connect. For detail about updated function, please refer to the link below. http://jp.pioneer-audiovisual.com/manual/sup/upd/sonosconnect_pio.pdf - Minor bug fixes and improvements stability.