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Download the J17 Performance – Markham App today to plan and schedule your classes! From this mobile App, you can view class schedules and sign up for classes as well as view the studio’s location.
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What's New in J17 Performance
8.804.0
September 25, 2026
Booking and checkout got a little smoother this time, with clearer error messages and a handful of behind-the-scenes fixes. We also squashed a bunch of bugs to keep things running well.
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