Google Ads API v25.1 released with Brand Lift and Conversion Lift measurement and benchmark category filters

v25.1, a drop-in upgrade for v25, added read-only LiftMeasurementConfig and LiftMeasurementFlight resources with 24 Conversion Lift metrics and Brand Lift dimension resources (allowlisted accounts), category_filter and share_of_voice metrics in BenchmarksService, brand sentiment insights in ContentCreatorInsightsService, Segments.loyalty_membership, Metrics.original_conversion_value, parental status targeting in reach planning and text disclaimer assets.

Release notes also list new campaign auto-migration tracking fields (aca_migration_date_time, broad_match_migration_date_time). The sunset schedule projects v25.2 for September 2026 and v26 for October 2026 (sunset November 2027), with v26.1 optional in November 2026.