Sony is not the swiftest of OEMs when it comes to updating its smartphones. Nearly a year after the Japan-based company introduced the Xperia C5 Ultra smartphone, it finally pushed out the Android 6.0 Marshmallow software update for the handset in Europe and America.

The Xperia C5 Ultra smartphone from Sony came preloaded with Android 5.0 Lollipop and was updated to Android 5.1 Lollipop in January 2016. Eight months after the Xperia C5 Ultra got a taste of the updated OS, it is now receiving an over-the-air (OTA) update, which brings the Sony phablet to Android 6.0 Marshmallow.

Earlier in October 2015, we reported that Sony had confirmed that select models in its Xperia lineup would jump straight from Android 5.0 Lollipop to Android 6.0 Marshmallow, bypassing Android 5.1.1 Lollipop in the process. One of the five smartphones that was set to benefit from this was none other than the 6-inch Xperia C5 Ultra.

The software update for the Xperia C5 Ultra comes close on the heels of the Xperia C4 Dual and Xperia C4 getting updated to Android Marshmallow as well.

The current update for the Xperia C5 Ultra is for the regular and dual-SIM variants of the handset. The build of the update for the single-SIM model that bears the model number E5506 is 29.2.A.0.122 and is being pushed out in Latin America. The dual-SIM model E5533 is getting updated to build 29.2.B.0.122 and this is for the Italian variant of the smartphone.

For those wondering what benefits they can avail of by upgrading to the latest software update:

"New software updates bring you the latest and improved set of features, functions and security enhancements, allowing you to get the most out of your Xperia device. Updating to the latest software will make your device run faster and smoother, and it's also the quickest and easiest way to solve any potential performance issues," asserts Sony Mobile.

To refresh your memory, the Xperia C5 Ultra touts a colossal 6-inch IPS LCD display with a resolution of 1,920 x 1,080 pixels. The Sony phablet is powered by an octa-core Mediatek MT6752 processor clocked at 1.7 GHz and rocks 2 GB of RAM.

The Sony phablet also offers support for 16 GB of on-board storage, which is expandable to a maximum of 200 GB thanks to a microSD card. The handset may not be waterproof, but it is scratch-resistant. The device's primary and secondary cameras both have 13 megapixels. It also packs in a 2,390 mAh battery.

Thanks to the latest update, Xperia C5 Ultra users will finally be able to enjoy popular Android Marshmallow features such as Doze Mode and Google Now on Tap. Whether the update brings soft charging capabilities to the Xperia C5 Ultra, like it did for some other Sony Xperia devices, is unclear.

Since the update is being pushed out in phases it could take a while before it hits your device. Ensure that you have at least 500 MB free memory and 50 percent battery charge before updating your handset.