I have updated my Delta sky miles profile with my new TSA number and ,my name as shown on passport. I had already booked several flts with delta. Will my boarding pass reflect the new changes?

Most airlines if you go into "manage my booking" it will show you if you've got extra checked bags booked already. https://forums.moneysavingexpert.com/discussion/6359942/checked-baggage-not-showing-on-boarding-pass

f you have an airline credit card that earns miles for a particular program, your account should include your frequent flyer membership number. Log in to your credit card account and check the account details, or look on old statements to see if you can find your number there.
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To access your reservation and view seat selection, follow these steps:

Confirmation Code (Booking Reference): This alphanumeric code is your unique identifier for the reservation within the airline's system. It's usually a combination of letters and numbers. You can find it on your booking confirmation or e-ticket. If you booked through an online travel agency (OTA), they might also provide their own booking reference.

E-Ticket Number: Your e-ticket number starts with 932 and is 13 digits long. It's printed on your tickets and booking confirmation. You can use this number to check in online and log into your booking.

Now, let's proceed:

If you're flying with Alaska Airlines, visit their reservation lookup page. Enter your confirmation code or e-ticket number along with your last name to view your reservation and manage details like seat selection.

For Virgin Atlantic, use your e-ticket number (starting with 932) to retrieve your booking. You can check in online and access your reservation.

If you're flying with Qatar Airways, log in to your account on their website and retrieve your booking using either the booking reference (PNR) or e-ticket number.

Remember, your e-ticket number is your actual travel document's identifier, while the booking reference is the airline's internal identifier for your flight booking.