Weights & Biases 0.27.0
Notable Changes This version drops support for Python 3.9 and Pydantic v1. Pydantic v2.6 or newer is now required. Added The stop_on_fatal_error setting to stop a run (using stop_fn ) after a fatal error that prevents it from uploading metrics ( @timoffex in #11774 ) New wandb.sandbox package and the wandb beta sandbox cli for using wandb sandbox (...
Also shipped May 14, 2026CoreWeave in May 2026 →
Workers - New Domains tab in the Workers dashboard
In your Worker's dashboard, there is now a dedicated Domains tab where you can purchase a new domain through Cloudflare Registrar and have it automatically connected, add an existing domain , and manage all of your Worker's routing in one place.
Code Intelligence
Code Intelligence gives Linear Agent controlled access to your codebase, turning repositories into shared product context your whole team can use. With Code Intelligence, Linear Agent can reason about how your product actually works, not just what’s captured in issues, projects, and docs.
Seer can send bugs to GitHub Copilot for the fix. Now in open beta
Send Seer’s root cause to Copilot for the fix.
Performance Risks Inbox is now in Public Preview
About Performance Risks Inbox Traditional monitoring is often reactive, alerting you only after a service is down or error rates have spiked. Performance Risks Inbox shifts your strategy from reactive to proactive.
FLUX Outpainting , Extend Any Image in Any Direction
A new FLUX Tools endpoint that extends an image beyond its borders in a single call , no prompt required.
Key Features
- Natural scene extension , Carries lighting, texture, depth, and composition past the original frame Flexible canvas control , Direct width / height and reference placement via reference_offset_x / reference_offset_y Up to 4MP output , Production-ready resolutions for banners, social formats, and aspect-ratio changes No prompt needed , The model continues...
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Weights & Biases 0.27.1
Added The automations API now supports artifact tag, collection tag, and artifact unlinking events ( @tonyyli-wandb in #11922 ) Changed wandb.Api GraphQL operations are routed through the wandb-core service instead of the legacy Python GraphQL client.
Weights & Biases 0.26.1
Added Api methods returning artifacts, registries, automations, and related paginators now accept an optional start argument to resume iteration from a saved cursor ( @tonyyli-wandb in #11651 ) The stop_fn setting to customize how a run is stopped ( @timoffex in #11773 ) Allows overriding the default of sending a SIGINT to the Python process Changed Unified...
Weights & Biases 0.27.2
Fixed Run.scan_history() no longer returns duplicate or missing steps when getting run history ( @jacobromero in #12010 )
Weights & Biases 0.26.0
Notable Changes This version drops compatibility with server versions older than 0.63.0 (for Dedicated Cloud and Self-Managed W&B deployments). Added wandb beta core start|stop commands to run a detached wandb-core service and reuse it across multiple processes via the WANDB_SERVICE env var ( @dmitryduev in #11418 ) Run filtering by metadata in multi-run...
Weights & Biases 0.28.0
Notable Changes This version drops compatibility with server versions older than 0.65.0. Added High-resolution image rendering in terminals supporting the Kitty protocol with ANSI fallback in the W&B LEET TUI media pane ( wandb leet command) ( @dmitryduev in #11806 ) Synced scrubbing in the W&B LEET media pane: press l to link scrubbing, then the scrub keys...
Weights & Biases 0.28.1
Notable Changes This version drops support for protobuf v4, and requires protobuf v5 or newer. This version drops compatibility with server versions older than 0.70.0.
Weights & Biases 0.28.2
Notable Changes The wandb sync --clean command now exits with code 1 and prints a hint to use wandb clean , which is the replacement. wandb login now verifies credentials by default. This can be disabled with wandb login --no-verify or programmatically with wandb.login(verify=False) .
Weights & Biases 0.29.0
Notable Changes Removed the deprecated start_method setting that already had no effect. The .length property on paginated objects (e.g. Api.runs() , Api.sweeps() , run.files() ) has been removed. Use len(...) instead. wandb.Video() now requires the format argument when initializing from a numpy array or raw bytes.