Acer Chromebook Spin 512 (R851T, R851TN, R852T, R852TN)
board: octopus • codename: sparky360
Stable
139.0.7258.164
platform: 16328.65.0
Beta
140.0.7339.77
platform: 16371.28.0
Dev
141.0.7374.0_pre1505586
platform: 16397.0.0
Canary
141.0.7381.0_pre1507586
platform: 16401.0.0