Drupal 10 deprecation error details

Class [redacted] extends deprecated class Drupal​\​stage_file_proxy​\​EventSubscriber​\​ProxySubscriber. Deprecated in 2.1, will be removed in 3.0.

Occurence count Affected project count Occurs in a top X project by usage Category
1 1 10000 Other problem
Filter projects
Project Top X by usage Occurrences Sort ascending
s3fs_file_proxy_to_s3 4.0.x-dev 10000 1

Results are from dataset #9198 from 2023-01-22T15:05. Report is ran by the Drupal Association regularly.