HTC Android KitKat software upgrade plans have been unveiled and it includes various models under the HTC One series of 2013 plus HTC Butterfly, Butterfly S and Droid DNA. Users of the HTC One X+ and One X finally got their conviction of not receiving another major firmware update.

HTC Android KitKat Upgrade Plans

Leakster @LlabTooFeR revealed the HTC Android KitKat upgrade plans for 2014 and it unveils that the company intends to update devices under the HTC One series of 2013 as well as Butterfly, Butterfly S and Droid DNA.

An image displayed various details on which HTC smartphones are receiving Android KitKat update, what features will be added, which devices are permanently locked on their current OS and some cancelled firmware developments.

Android 4.4 KitKat update is confirmed to arrive on HTC One M7, One M7 Dual, One Max T6, One Mini M4 and Butterfly S carrying the all new HTC Sense 6.0 UI. According to the information, HTC One M7 users around the world will receive the update from May to June while owners of One M7 Dual, One Max T6, One Mini M4 and Butterfly S can get theirs from June to July.

HTC cancelled Android 4.3 Jelly Bean for Butterfly and Droid DNA to go straight for Android KitKat. However, both smartphones are not going to receive HTC Sense 6.0 and will be replaced by HTC Sense 5.5 UI.

HTC One X+ and One X

Owners of HTC One X+ and One X were convicted after the company made them ineligible to get Android KitKat. Based on the upgrade planning from HTC, Android 4.3 and Sense 5.5 software development were cancelled due to lack of drivers for AP33 and AP37.

HTC also decided not to include One X+ and One X on jumping straight to Android 4.4 KitKat as both are tagged "not planned."

Moreover, both HTC One X+ and One X are 2012 flagship smartphones which basically excluded from updates related to the 2013 HTC One series. HTC One X+ was released in November 2012 with update window period expiration on May 2014 while HTC One X was released in May 2012 which already out of the date within the software support period.

Impending Android 4.4.3 Version

Google's upcoming new Android KitKat firmware coded 4.4.3 KTU72B is expected to arrive soon to Nexus 5 before the next-generation Android release this year. HTC may also change the schedule for Android KitKat update plans on HTC One 2013 series to pave way for the new firmware version.

Android 4.4.3 KitKat firmware delivers several major improvements for Nexus 5 such as camera battery drain due to a triggered bug reported by various users.