Starting with Public Cloud Release 2508.1, a new B/S Reclassification Run for Changed Master Data is available as part of the Advanced Valuation Runs.

To use this feature, you must first activate the Reversal Posting Logic for B/S Reclassification (by Maturity) by enabling the feature
FINS_FI_CLS_REC_REVERSAL (Feature ID: 106573).

With activating the feature, the new run will become visible in the system (Configuration Activities as well as a job in the app Schedule General Ledger Jobs). 

There is no dedicated feature for the run itself that need to be activated.