Google now releases monthly security updates for Nexus phones and tablets. So, at the very least, you should be getting a security update of some kind next month. The security update could simply have patches for exploits or it could come with bug fixes, we don't know.
The company typically releases its first bug fix update for new software about a month after the initial release. Last year, Android 5.0.1 rolled out less than a month after the release of Android 5.0. So, we could see Android 6.0.1 push sometime before the end of the near, maybe next month.
Upcoming Android Marshmallow updates will likely be aimed at solving problems but remember, bug fix updates can bring problems of their own. So be careful and prepare.
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