Up until now, people were rather confused about the appearance of a software update for Pixel devices. The Pixel series has been released by Google in the end of 2016. However, at the moment Google is clearing things up.
On a support page, people could see how Google offered a clear timeline for the software support dedicated to Pixel and Pixel XL. According to the company, both devices will receive the version update for the Android until October next year. This means that next year we will see Android coming to the Pixel phones.
This year in September we will see the end of official support for Nexus phones, especially the Nexus 6P and the Nexus 5X models. They will indeed receive the Android O version to appear this year, but they will not have support for the next one, the Android P. Google noted on their official support page that Pixel phones can receive Android updates for a minimum of 2 years since the device was made available on Google Store. After this time frame, the company will not guarantee any extra updates.
Some Things Are Still Unclear
There is still a sense of confusion, even after the official announcement. On various markets, the Pixel phones were released at various times. For example, if the Pixel was released on the American market in October 2016, then indeed the cutoff date would be October 2018. But if the phone was released on a different market in January 2017, will support still end for it in October 2018?
One last thing you should be aware about is the fact that this dates may be approximate and they can be just some guidelines. As such, you can expect some more changes to occur in the future, or we might receive new information on this topic.