I just downloaded both the 1.8.4 zip file and the nightly zipfile and verified that neither has the wire library included under Arduino.app/Contents/Java/libraries which is where the rest of the standard libraries appear to be. This library is still listed as a standard library under https://www.arduino.cc/en/Reference/Libraries but does not appear to be listed under the https://github.com/arduino-libraries teams repos either.

Has the wire library become deprecated and no longer distributed with the Arduino IDE or was its inclusion just overlooked in the 1.8.4 and beyond build process.

Thank you