Segmenting by App Build Number

There are a couple of ways to set this up, but before I write about that, I have to bring up the fact that employees get different experience because they use the product differently and more than the regular consumer. Your testing issues may be because of that - if your Braze profile has registered a device where the app version is prior to v17. You only need to match one of the conditions to be eligible for the canvas. 

You could create 4 segments:

• Android users - above 17
• Android users - below 17
• iOS users - above 17
• iOS users - below 17

This is your canvas entry audience - applied with "segment membership" and the "OR" operator. Then, you take users down the correct path using an audience split. If you want two separate canvases, that's fine too - you can use the same settings with 2 segments in each canvas. 

The second way to do this would be to throw all app users in a canvas with the filters you currently have. Then you split iOS and Android with decision splits or audience paths. Then, you'd need another canvas for the "above v17" users. 

Let me know if this is helpful.