Arduino IoT Cloud now support for ESP8266

 You can now add ESP8266 module to your Arduino IoT Cloud and control it using intuitive web-based Dashboard.

Source:
- Arduino Blog > Arduino IoT Cloud: Support for ESP8266 and other third party boards
- Arduino IoT Cloud

Arduino Pro IDE (alpha preview) released

Arduino announced a completely new development environment for Arduino, Arduino Pro IDE (alpha preview) released. Available in Windows, Mac OS X and Linux64 versions.

The main features in this initial alpha release of the new Arduino Pro IDE are:

• Modern, fully featured development environment 
• Dual Mode, Classic Mode (identical to the Classic Arduino IDE) and Pro Mode (File System view)
• New Board Manager 
• New Library Manager
• Board List
• Basic Auto Completion (Arm targets only)
• Git Integration
• Serial Monitor
• Dark Mode

Source and download link:
~ Arduino Blog - Arduino Pro IDE (alpha preview) with advanced features