Version 1.6.21

CHANGELOG

 SAMD CORE ?.?.?? ????.??.??
 
+SAMD CORE 1.6.21 2019.04.01
+
+* MKR boards: changed I2C to sercom2, SPI1 + Serial2 to sercom4
+* Improved accuracy of delay() function. Thanks @BenF
+* MKR 1500: Changed SARA module to be powered off on boot
+
 SAMD CORE 1.6.20 2018.11.28
 
 * Replaced boolean type with bool in examples. Thanks @per1234

platform.txt

@@ -20,7 +20,7 @@
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5---3rd-party-Hardware-specification
 
 name=Arduino SAMD (32-bits ARM Cortex-M0+) Boards
-version=1.6.20
+version=1.6.21
 
 # Compile variables
 # -----------------