WatsApp has said that its messaging app will cease to work on older phones and operating systems as early as the end of this year.
The announcement comes after a warning earlier this year that the Facebook-owned company would be pulling support for older models, and that the deadline to upgrade was fast approaching.
The same blog post was then updated to say some phones would be supported until June 30, 2017, while the service would be discontinued on others by the end of this year.
