The main attraction with the 0.4.6 release on the photon is the introduction of multithreading, specifically that the system code runs on it’s own thread so the application loop runs freely.
To get a feel for how your application runs with the system thread enabled, you can try a simple blinky sketch:
You’ll notice that the LED blinks from quite early on in startup, through the device connecting to WiFi, connecting to the Cloud. If you flash data OTA, you’ll see also that the LED keeps blinking right up until the device has to reset to apply the OTA update. Exciting stuff!
The system thread feature is a Beta release - feedback, questions etc… very welcomed so we can refine this and push it towards a full release in 0.4.7.