Announcing v2.0.0

Version 2.0.0 is released! It is a major version bump because it contains breaking changes that may require user code changes.

Breaking changes

As part of periph’s compatibility guarantee, breaking changes can only occur on major version bump.

conn/gpio/gpioreg: Removed ByNumber().
conn/spi: Renamed Port.DevParams() to Connect() to better convey that a connected Port becomes a Conn.
devices: Device doesn’t embed fmt.Stringer anymore. Display and Environmental now embed Device.
devices/bme280: renamed to devices/bmxx80, now supporting all three of BMP180/BME280/BMP280.
host/pmem: Renamed Mem.Struct() to AsPOD() and made it support array and slices.

This release brings a whole set of new features:

conn: Added documentation about the concepts: Bus, Port and Conn.
conn/pin/pinreg: when mapping a physical board header via pinreg.Register(), any pin.Pin that also implements gpio.PinIO are now automatically aliased as <board>_<pin number> in the GPIO registry conn/gpio/gpioreg.
devices: Added Environmental.SenseContinuous().
cmd/ssd1306 and devices/ssd1306: Removed dependency on golang.org/x/image/… in both the command and in the device driver’s tests, making periph a library that depends only on pure stdlib, even for the executables in cmd/.
host/allwinner: Removed accidental dependency on github.com/kr/pretty. Oops!
Added travis check to never allow a non-stdlib dependency ever again.
Various minor improvements: documentation, typos, better golint and go vet compliance, code coverage increase.

I want to give a special thank to Matt for recent code reviews and Thorsten for previously handling this task.

Follow twitter.com/periphio for news and updates.

— By Marc-Antoine Ruel