Automatically merged updates to draft EIP(s) 1193 (ethereum#2057)

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EIPS/eip-1193.md

@@ -7,6 +7,7 @@ status: Draft
 type: Standards Track
 category: Interface
 created: 2018-06-30
+requires: 155, 695, 1102, 1474
 ---
 
 ## Summary
@@ -68,6 +69,16 @@ ethereum.on('close', listener: (code: Number, reason: String) => void): this;
 
 The event emits with `code` and `reason`. The code follows the table of [`CloseEvent` status codes](https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes).
 
+#### chainChanged
+
+The provider emits `chainChanged` on connect to a new chain.
+
+```js
+ethereum.on('chainChanged', listener: (chainId: String) => void): this;
+```
+
+The event emits with `chainId`, the new chain returned from `eth_chainId`.
+
 #### networkChanged
 
 The provider emits `networkChanged` on connect to a new network.
@@ -195,6 +206,10 @@ If the network connects, the Ethereum Provider **MUST** emit an event named `con
 
 If the network connection closes, the Ethereum Provider **MUST** emit an event named `close` with args `code: Number, reason: String` following the [status codes for `CloseEvent`](https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes).
 
+#### chainChanged
+
+If the chain the provider is connected to changes, the provider **MUST** emit an event named `chainChanged` with args `chainId: String` containing the ID of the new chain (using the Ethereum JSON-RPC call `eth_chainId`).
+
 #### networkChanged
 
 If the network the provider is connected to changes, the provider **MUST** emit an event named `networkChanged` with args `networkId: String` containing the ID of the new network (using the Ethereum JSON-RPC call `net_version`).