Step 1: Go-to Google Play Console
Step 2: In all applications ⇒ Click on the App we need to release the new update.
Step 3: When we click on the App we got an window like below,
Step 4: Click Release Management ⇒ App Release ⇒ ( here In the Production Track ) Edit Release
Step 5: Then Click on Edit Release a new window will appear, In Android App Bundles and APKs to add, Browse the new updated aab file that we want to upload.
Step 6: After Upload the aab file, scroll down to the bottom of the page and Enter Release notes in What’s new in this release?
Step 7: Press Review
Step 8: Press Rollout