===== Version 4.0.1 =====
Version 4.0.1 was released on 2014-01-03

This is a minor bug-fix release of the Deviation firmware

** IMPORTANT: You must install the filesystem along with the new firmware. Make sure to save your models first! **

Please see the [[release_notes/4.0.0|4.0.0]] release notes for major features of the 4.0 Deviation release.

==== Bug Fixes ====
  * Add Hubsan telemetry support
  * Add Hubsan video-recording support
  * Add experimental YD717 protocol support
  * Allow setting battery-alarm on Devo7e up to 9V to support 2S batteries
  * Prevent crash when model icon isn't available
  * Prevent selection of telemetry fields on main-page config page when telemetry is disabled
  * Remove display of 'Timer-1' and 'Timer0'
  * Properly load/save RTC clock format
  * Enable Timer4 to be saved on Devo12
  * Enables 8 channels of output in USBHID joystick mode
  * Enables selection of toggle-icons for non-switches on Devo7e/10
  * Use proper font when displaying low-battery indication on Devo7e/10
  * Minor changes to DR icons for Devo7e/10

==== Incompatibility ====
  * Devo12 AUX2 and AUX5 have been reversed to be consistent with other controls

==== Known Bugs ====
  * Enabling telemetry in the DSM2, DSMX and DEVO protocols might cause your TX to hang or reboot, which results a crash