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No, its not needed and I misread the information. They are basically giving you a chance to update any information just incase anything changed since you last submitted the forms before the next stage of your application to avoid any future delays.
Then why they specificaly ask about pcc
 
Hello Community..
I have received the email from IRCC earlier today...

In the email: (..... In order to avoid delays in processing, you must provide the below documents if you have not already included them in the original submission and/or if there are any updates to the information that was provided by you previously....)

I think this is simply normal. IRCC knows that it has been almost a year (for me almost 10 months) since they received our applications.. therefore they're sending this to everyone just in case there are any updates that need to be brought to IRCC's attention..

I don't think that it will be a bad idea to re-submit the whole thing again..
For me, I have recently submitted all these forms for my family (dependents outside Canada).. so I can add the forms related to me as well.. and send everything again..

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Since so many of us (PR applicants June to August 2025) have received the same letter.. this makes me somehow optimistic..
I have a feeling that IRCC is finally moving ahead with the one-time initiative.. fingers and toes crossed :)

Let's do our part.. provide them with whatever they request.. and then wait..

IRCC definitely CAN process ~7,000 PR applications per month.. It is only the WILL..
A PR process for economic immigrant streams can be completed within as short as 6 months..

No that I want to be too optimistic.. but I think we are getting there.. and the estimated processing times will be somehow REAL.
Do you receive BIL ?