Nexus devices are known for their unparalleled software support received directly from Google. But in the past, there have been some concerns regarding this particular aspect on carrier branded Nexus devices. As carriers require to make specific changes to their updates with bloatware, bug fixes etc, customers would usually have to wait longer to receive updates. And now with the Nexus 6 making its way to all major carriers in the U.S., this unfortunate policy has made a comeback.
Google’s support page mentions the following – “Nexus 4, Nexus 5, Nexus 6, Nexus 7, Nexus 9, and Nexus 10 devices receive the latest version of Android directly from Google. Once an update is available, it can take up to two weeks for it to reach your device. Based on your carrier, it may take longer than two weeks after release to get an update.”
Carrier approval for updates was not noticed over the past two years as Google sold the Nexus 4 and the Nexus 5 independently through the Play Store without seeking carrier support. But as Google tries to tap into the broader market with the Nexus 6, it was imperative that they joined hands with mobile carriers. So if you feared that your carrier branded Nexus smartphone will get delayed Android updates, your worst nightmare has come true.
Source: Google Support