The non-exhaustive list of changes and improvements:
- added literal syntax for strings, characters and hex numbers
- added ability to define custom recognizers
- i2c ssd1306 driver
- NTP module
- ws2812 driver
- reduced memory consumption
- added words for getting and setting cpu clock speed
- added examples like: PIR sensor, ws2812 based game of life, sonoff smart socket
- added decompiler
- experimental turnkey and blocks module
- many other changes under the hood