It was just a request letter to give Biometrics at VAC, which I think you would have received as well.
After getting biometrics done its details started appearing on my profile without any change in status (which I think is the case with everyone).
I did the upfront medical test and applied under SDS.
The only correspondence letter that I received was regarding Biometrics and that has been sorted, now it shows Biometrics detail in my profile. But there is no sign of medical test status.
Submitted on 18th June under SDS
with upfront Medical
Biometrics submitted 22 June
Status: "We're processing your application..."
No update after that.