While Google already released the first Android N Developer Preview builds, there are still a plethora of users out there who still haven't received the Marshmallow update on their smartphones. However, Sony is one of the OEMs that puts in some efforts into updating its smartphones with the latest Android firmware.
On March 23, the Japanese phone maker has begun rolling out the Android 6.0 Marshmallow update for Sony Xperia Z5 and Xperia Z5 Premium in Canada. Only a few days later, they halted the update over a bug that was affecting Google Play. According to this thread on Sony's forum users have experienced constant Google Play Store crashes. Furthermore, none of the usual fixes such as clearing the cache or rebooting worked.
Due to this Play Store bug, Sony has decided to pull out the Marshmallow for both the Xperia Z5 and Xperia Z5 Premium on the Canadian market. They made the announcement on Twitter and, unfortunately, they failed to reveal when the fix will be released.
The Marshmallow update is pretty major so the users have every reason to want it installed on their phone. The update introduces a new app permissions system which enables apps to ask for permissions only when they need to access certain features of your phone, Google Now On Tap which is capable of scanning the contents of your screen and pull out relevant information, Doze Mode for drastic battery life improvements when the phone is idle, Deep Linking, Direct Share, native support for fingerprint readers, support for using microSD cards as default storage (although Sony decided to ditch this feature), automatic app data back up, and more. It also arrives with Xperia-specific improvements such as minor interface improvements, a faster way to access the quick settings menu, etc.
As the norm is with new software updates, next time the Marshmallow update is released in Canada for Xperia Z5 and Xperia Z5 Premium it will be done in waves. This means that it would take a while until the update spreads to users. Usually, when the roll out begins a notification would pop up on your device. Tap on it and follow the prompts on the screen to complete the installation. In case you can't see the system update notification you can check for the update manually under Settings > About phone > System updates > Check for update.