1. Margin computation APIs are now available on Kite Connect for all the users. This is still in beta, so you can expect there can be some changes. You can check out the documentation to know more here. This will be rolled out in all the client libraries shortly.
2. There is an update to WebSocket subscriptions. There is an update that will be pushed on Sunday the 30th that will no longer accept `null` in place of numerical instrument tokens. Ideally, this should not affect your applications, but please check your code to ensure you are not sending `null`s in place of numerical values.
3. In addition, we are revising the 3000 subscription limit over maximum 3 WebSocket connections to 4000 instruments over 3 WebSocket connections. This change will be effective starting Sunday, 14th September 2020.