MongoDB new features in September 2026

Everything MongoDB shipped in September 2026: 5 releases, grouped by product, each linked to MongoDB's release notes.

Update 5

Adds support for a cron schedule in the $source stage.

UpdateStreamingSource

Adds us-west1 in Google Cloud and northeurope, eastasia, and southeastasia in Azure.

UpdateStreamingRegionsSource

Adds support for vertical autoscaling of stream processing.

UpdateStreamingSource

Initial sync can copy collections whose _id values span multiple BSON types, such as ObjectId, string, numeric, date, and UUID.

UpdateStreamingSource

The $iceberg stage writes to AWS S3 using s3:// instead of s3a://, increasing compatibility with external query engines.

UpdateSQLApache IcebergSource