According to an internal document, TELUS employees are slated for iOS 7 training webinars, with a choice between September 17 or 19, reports MobileSyrup. Employees are also asked to ensure store versions of iTunes have been updated to 11.0.5 “immediately:

“This fall, Apple will be introducing the new and highly anticipated redesigned iOS 7. With over 200 new features, it is impossible to cover them all. Please take a moment to familiarize yourself with these key design and feature upgrades to better assist you with positioning iOS 7 to your customers.”

Apple is set to officially unveil iOS 7 release dates at its iPhone special event this upcoming Tuesday.

Last year, the golden master version of iOS 6 was made available to developers the same day as the iPhone 5 announcement event, which landed on September 12. Apple announced the public release of iOS 6 was set for one week later on September 19.

If Apple follow’s last year’s timeline, we should see again iOS 7 golden master released to developers on September 10, with the public release to follow on September 17–the same day TELUS employees are slated to ‘train’ on iOS 7.