Notifications removing support for WebSocket v8

Announcements
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Category: Notifications

Summary: Support for WebSocket version 8 and older will be removed from the notification channel WebSocket endpoint. All clients must be compatible with the finalized WebSocket version 13 defined in RFC 6455.

Context: We are updating our WebSocket service libraries to a new version that has dropped support for the WebSocket draft versions. Versions 8 and older were drafts for the WebSocket standard that were deprecated in 2011 when the standard was finalized.

Impact: All web browsers support the finalized WebSocket version, so it should not affect the vast majority of users. This may impact a small number of non-browser clients that are using older WebSocket libraries which do not support the finalized standard. These clients must be updated to a newer version with proper support for WebSocket version 13. This can be validated by checking the Sec-WebSocket-Version header that is sent with the WebSocket connection HTTP request. The value must be 13.

Date of Change: Not before 27 Jan 2020

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Thanks Joe. Btw, the part "small number of non-browser clients" was not crystal clear. Can you please list up a few examples? PureCloud installed/desktop client is based on Chromium, so I think it is based on the finalized webscoket spec. If so, I'm just wondering what those clients that need attentions are. E.g., API/SDK based ones? Let us know. Thanks!

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Anything even relatively modern supports the latest websocket spec. Even Internet Explorer. This will not affect any PureCloud products.

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