9.1.3 / 2026-01-09

• fix(model): support timestamps option to insertMany() as both boolean and QueryTimestampsConfig #15941 #15938
• fix(query): include preview of current and incoming update in error when merging normal update with pipeline #15939 #15928
• types(model): apply basic type casting to paths underneath subdocuments #15948 #15947
• types(utility): make WithLevel1NestedPaths correctly handle PopulatedDoc and other TypeScript unions with Document members #15942 #15923
• docs(schema): expose "DocumentArrayElement" #15590 hasezoey