Advance tax, Self-assessment tax, refund, others will not be available in Form 26AS from this year AY 2023-24 (FY 2022-23. Nonetheless, one has to reconcile their tax payment challans, AIS/TIS and file in the correct tax payment information in the ITR.
You would need Form 16, house rent receipt (if applicable), investment payment premium receipts (if applicable). However, ITRs are annexure-less forms, so you are not required to attach any document