TL;DRGoogle has begun rolling out the Fitbit Air’s first post-launch firmware update, bringing bug fixes and general performance improvements.The update could deliver Google’s previously announced improvements to automatic workout detection.The rollout is gradual, so not all Fitbit Air users will receive the firmware update immediately.The Fitbit Air is getting its first firmware update since launch. Google has reportedly started rolling out a new software build that primarily delivers bug fixes, but it also hints at improvements to one of the tracker’s biggest weak spots: automatic workout detection.The update is arriving as version 20001.253.2 on iOS and 67.20001.253.2 on Android (h/t: 9to5Google). The version numbers look slightly different depending on your phone, but both packages contain the same update. Just like other Fitbit devices, you’ll see a notification inside the Google Health app when the firmware is available for your tracker.