January 2026

New features

Weld Connect API

Production-ready REST API for Business and Enterprise plans. Programmatically control integrations, connections, syncs, and streams. Includes the ability to update incremental pointers via API.

Weld Connect API documentation

Change cursor from front-end

You can now change the incremental cursor directly in the Weld UI, making it easier to adjust sync starting points without API calls.

New connectors

AppLovin

Sync MAX, Publisher, Advertiser, and Probabilistic reports with automatic deduplication.

AppLovin documentation

Amazon Attribution

Dedicated connector for Amazon Attribution metrics, separated from the standard Amazon Ads integration.

Amazon Attribution documentation

ShipHero

Orders, Products, Shipments, Inventory, and Warehouse operations (13+ streams).

ShipHero documentation

Breaking changes

Amazon Ads: sponsored_product_ad_group upgraded to v3

Amazon Ads v3 table changes

The legacy sponsored_product_ad_group API has been deprecated by Amazon. Weld now syncs from the v3 endpoint.

  • The old sponsored_product_ad_group table retains historical data only and will not receive new records.
  • You must switch your queries to the new sponsored_product_ad_group_v3 table.

Connector updates

  • Amazon Selling Partner: New Transactions stream (nested data: items, breakdowns, contexts). Adjusted sync lookback from 1 to 3 days.
  • Instagram Business: Updated API to v24.0. Added feed_comments and feed_likes to media insights.
  • PostgreSQL and CDC: Legacy support for Heartbeat tables on PG < v14. Optimized memory for tables with 5M+ records. Reduced connection usage during PK retrieval. New CDC replication lag alerting with Slack integration.
  • Facebook and Meta: Fixed 0-values treated as null in Facebook Pages. Removed deprecated video insight metrics. Fixed bug skipping current-date data in Facebook Ads.
  • Klaviyo: Increased chunk size for event syncs (5M to 15M). Bumped API revision to 2025-10-15.
  • Shopify: Added fulfillment_line_item_line_item_id to order_return_line_items. Improved ELT settings for contextual pricing and translatable resources.
  • HubSpot: Added retry logic for 401 Invalid Token errors. Improved incremental engagement syncs. New Engagement Calls stream.
  • MySQL: Fixed pagination for tables with composite primary keys.
  • Snapchat Ads: Fixed field incompatibility with specific report dimensions.

Platform improvements

  • BigQuery preserves existing table partitioning when creating temporary tables.
  • Optimized publishedModels query for faster lineage graph loading.
  • Custom integrations: conditional schema generation to prevent unnecessary data probing.
  • Concurrency limits (5) for custom connectors.
  • Fixed billing validation issue when upgrading with MAR add-ons.

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