CoreWeave Release notes and new features

W&B Weave 0.54.1

CoreWeave released W&B Weave 0.54.1 with fixes for SDK TypeSafe state iterators, forge-sdk parity, model call ID recording on OpenAI Agents tools, and updated trace-server clients.

W&B Weave 0.54.0

W&B Weave 0.54.0 removes deprecated modules and updates the Stainless client naming.

W&B Weave 0.53.13

W&B Weave 0.53.13 includes internal refactoring of the trace server, security updates for address handling, and dependency updates.

Weights & Biases 0.31.0

Notable Changes - The default API endpoint is now CoreWeave Forge at https://api.forge.coreweave.com, and run links point to https://forge.coreweave.com/wandb. Existing API keys stored for api.wandb.ai keep working without logging in again. Added - Python 3.15 is now supported (@dmitryduev in ) - wandb.init(resume="must") now works for offline runs.

W&B Weave

- chore(weave): refresh vendored trace-server clients fix(weave): return 400 for an illegal query argument, not 403 fix(weave): unbox traced values before the google.genai call fix(weave): support current-version call queries feature(weave): make Stainless default HTTP client chore(weave): refresh vendored trace-server clients chore(weave): document the V2...

• W&B Weave 0.53.10
• W&B Weave 0.53.11
• W&B Weave 0.53.12

W&B Weave 0.53.9

Release version: 0.53.9-dev0 → 0.53.9

Weights & Biases 0.30.0

Notable Changes wandb.InternalApi , the wandb.PublicApi and wandb.apis.PublicApi aliases, and the wandb.apis.internal and wandb.sdk.internal.internal_api modules have been removed. Use wandb.Api() instead. wandb.api and wandb.ensure_configured() are deprecated.

W&B Weave 0.53.8

Release version: 0.53.8-dev0 → 0.53.8

W&B Weave 0.53.7

- chore(weave_ts): add 0.16.6 changelog entry fix(weave): map ClickHouse stream failures to 502 and read structured error codes feat(weave): allow score tracing to be disabled in imperative evals fix(weave): keep eval rows that produced no score in the summary fix(weave_ts): report inclusive Anthropic prompt tokens feat(weave): add tables for tags...

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.

W&B Weave 0.53.6

- fix(weave_ts): return the real image from client.get() fix(weave_ts): label a fetched image with its real format fix(weave): keep chat completion streams open for iteration feat(weave): trace Claude Agent SDK subagents fix(weave): trace Claude Agent SDK async-iterable queries per turn fix(weave): stop UnboundLocalError in the MCP read_resource wrapper...

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) .

W&B Weave

- fix(weave): stop bool/int param collision that 400s calls queries chore(weave): file storage presign_read chore(weave): export target queries fix(weave): preserve object read error context chore(inference): use uv and add sync_model_catalog target chore(weave): clickhouse export write path fix(weave): map openai cached_tokens to cache_read on otel ingest...

• W&B Weave 0.53.3
• W&B Weave 0.53.4

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.

W&B Weave 0.53.2

- perf(weave): per-source union-all for custom-attrs schema query perf(weave): compute numeric-histogram bounds once (3 map scans -> 2) perf(weave): page-prefetch two-pass for agents list-view attribution perf(weave): prune the agents cost list-read via the two-pass chore(inference): fix 500 in catalog API fix(weave_ts): re-route agent spans to the active...

W&B Weave 0.53.1

- perf(weave): scope calls_complete total-storage rollup to matched traces chore(weave): Bump to 0.53.1-dev0 chore(weave): drop dead op_name IS NULL arm from calls_complete queries feat(weave): drop ddtrace dep, inline DogStatsD in datadog.py fix(weave): reject negative JSON path array indices (422 not 502) chore(weave): add weave-instrument agent skill...

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 0.27.2

Fixed Run.scan_history() no longer returns duplicate or missing steps when getting run history ( @jacobromero in #12010 )

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 0.27.0

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 (...

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 0.26.0

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...