Additional Info:
As this update is mainly focused on matchmaking changes we have only one region available (US East) to have the most players in the same region. We will use the telemetry generated by your matchmaking attempts to validate the changes introduced. 
Matchmaking Improvements
Skill-based matchmaking An option “Skill-based” has been added to the lobby screen. When enabled, this option will match you exclusively with players in your assigned skill bracket. Please be aware that selecting this option can result in fewer players in your match.
When this option is disabled, we will try to match you with players in your assigned skill...
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