Apple will launch the new version of its mobile OS, iOS 8.2, on Monday, which will include a number of updates to Apple Health, according to a report from BGR. The health app updates fall into three broad categories: new features, bug fixes, and, notably, updates to how the app handles units.

One new feature will allow users to "add and visualize workout sessions from 3rd-party apps." Previously, Apple Health could track calories and steps but did not include a way to track workouts, especially ones including harder-to-track things like weightlifting. When MobiHealthNews wrote up its analysis of the first 137 HealthKit-enabled apps last November, we noted that 18 percent of the apps were pushing workout data to HealthKit, even though Apple's Health app didn't yet have a way to display this data. Well, soon it will.

Additionally, the update "adds a privacy setting that enables turning off tracking of steps, distance, and flights climbed". It's always been possible to turn off the automatic motion tracking in the iPhone, but the update will likely allow users to do so from inside the health app, rather than going to settings, which requires more steps.

Some of Apple's most embarrassing moments since the launch of the Health app have had to with mismatched units: Apple displayed the wrong units for blood glucose on a slide when the app was first announced, and then had to pull glucose tracking entirely for a while because the app lacked support for mmol/L, or millimoles per liter, the metric commonly used for blood glucose outside the United States. As has been reported for some time, this upcoming update will see the return of the blood glucose data field in the Health app.

The new update will add additional units not just for blood glucose, but also for body temperature, weight, height, and distance, as well as fixing the units for vitamins and minerals (although it's not clear what was wrong with them). This will hopefully guard against any similar flubs in the future.

Other bug fixes and performance upgrades to the Health app include: improved stability when dealing with large amounts of data; a fix to an issue users had uploading photos to their medical ID; a fix to an issue where Apple Health wouldn't refresh when data was changed in the source app; and a fix to an issue where some graphs wouldn't display any data.