We have extended the time of the deprecation to allow customers more time to switch over. October 24, 2018, Genesys changed the deprecation date from October 31, 2018 to December 5, 2018. On December 5th, the configuration will be deprecated at 4 in the morning local time for each region. This change does have the potential for breaking your ACD chat if you do not make the switch.
If you have technical reasons why you will not be able to make the switch by December 5th, work with your designated customer success manager or partner to let us know. You can also always just send me a message if you're having trouble.
The article has been updated with the new details: Deprecation: Website-only web chat configuration - PureCloud Resource Center
You can also follow along on the community forum.