The October 2025 release includes the following important notice:
Deprecated support
Effective in the October 2025 release, support for the classic experience of the Source Records page and merge and unmerge tasks in the workflow inbox is deprecated. Instead, use the new experience on the Source Records page and in the workflow inbox. The new experience is enabled by default. You can revert to the classic experience of the Source Records page and the workflow inbox, if needed.
Deprecated functionality is supported, but Informatica intends to drop support in a future release. Informatica requests that you transition to different functionality before the functionality is dropped.