**Gateway:**
- Fixed reconnection Gateway to ThingsBoard bug
- Added minPackSendDelayMS to config file
- Fixed certificate loading
- Fixed remote logging feature
- Fix for RPC calls to connectors. Thanks mjbernet3
**MQTT Connector:**
- Added JSONPath parsing to RPC `valueExpression` config section
- Added `attributeRequests` config section
- Added `retain` flag for attributeUpdates, attributeRequests
- Added opportunity to combine values in attributes, telemetry and serverSideRpc config sections
**Modbus Connector:**
Added configuration parameters:
- retries - Count of retries if polling was failed (default 3)
- retryOnError - Retry to get data if server returns an error (default true)
- retryOnInvalid - Retry to get data if server returns invalid data (default true)
**REST Connector:**
- Added SSL Support
- Added JSONPath parsing to RPC `valueExpression` config section
- Added opportunity to combine values in attributes, telemetry and serverSideRpc config sections
**BACNet Connector:**
- General improvements
**Request Connector:**
- General improvements
- Added JSONPath parsing to RPC `valueExpression` config section
- Added opportunity to combine values in attributes, telemetry and serverSideRpc config sections
**ODBC Connector:**
- Bugs fixed (adding timestamp to telemetry)
**FTP Connector:**
- Added opportunity to combine values in attributes, telemetry config section for JSON files