Update CHANGELOG.md

Author: MrClock8163

CHANGELOG.md

@@ -10,9 +10,18 @@ The project uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 ### Added
 
 - Added support for checksums in GeoCOM transactions
+- Added `SocketConnection` to allow socket based communication
+- Added `open_socket` function to create TCP and RFCOMM socket connections
 
 ## Changed
 
+- Changed the `Connection` interface definition to require `send_binary`,
+  `receive_binary` and `exchange_binary` methods
+- Changed `open_serial` to raise `ConnectionError` instead of the original
+  exception when the connection could not be opened
+- Changed all methods of `SerialConnection` to raise the general
+  `ConnectionEror` and `TimeoutError` instead of serial specific
+  `SerialException` and`SerialTimeoutException`
 - Updated GeoCOM response parsing to raise exception when the number of
   received paramters does not match the number of parsers specified
 - Updated `GeoCom` init signature to require keyword arguments