Releasesby GlyphW&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...
Also shipped Jul 16, 2026CoreWeave in July 2026 →
DCM Projects: New capabilities (Preview)
DCM Projects now supports the following capabilities in preview: For more information, see Supported object types in DCM Projects and Deploy and manage DCM Projects .
VOLATILE scalar UDFs are supported with dynamic table incremental refresh (General availability)
VOLATILE scalar user-defined functions (UDFs) are now supported with dynamic table incremental refresh in INCREMENTAL, AUTO, and ADAPTIVE refresh modes. This applies to scalar UDFs written in Python, Java, Scala, JavaScript, and SQL. For incremental refresh, VOLATILE UDFs are supported only in the SELECT clause.
Scala and Java UDFs in Unity Catalog are now generally available
Register Scala and Java user-defined functions (UDFs) in Unity Catalog and reuse them across notebooks, jobs, and SQL warehouses with Unity Catalog governance. Reuse existing JVM logic and get better performance than Python UDFs on all compute, including serverless. See Scala and Java user-defined functions (UDFs) in Unity Catalog .
MLflow trace storage in Unity Catalog is now generally available
MLflow trace storage in Unity Catalog tables is now generally available. Databricks recommends storing traces in Unity Catalog for new and production workloads: storage is unlimited, traces are stored in OpenTelemetry (OTel) format, access is governed through Unity Catalog schema and table permissions, and you can query traces with SQL, Genie, AI/BI...
Agentic code converter is in Beta
The agentic code converter is in Beta . Use it to convert legacy SQL dialects, such as T-SQL, Snowflake, Redshift, Oracle, BigQuery, and Teradata, to ANSI SQL in migration projects in your workspace.
Google Gemini 3 Pro is retired
Google Gemini 3 Pro is retired. Gemini 3.1 Pro is the recommended replacement. See Deprecated and retired models for migration guidance.
More from W&B WeaveEvery W&B Weave release →
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...
W&B Weave 0.53.4
- fix(weave_ts): restore tracing for structured outputs on openai-node v5+ feat(weave): add custom runtime registration API feat(weave): record turn output messages fix(weave): preserve custom provider names in selectors chore(weave): ignore (and log) extra fields from BaseModelStrict refactor(weave_ts): use Weave GenAI SDK for Claude Agent tracing...
W&B Weave 0.53.3
- 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 0.53.6
- 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...
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...
W&B Weave 0.53.8
Release version: 0.53.8-dev0 → 0.53.8
W&B Weave 0.53.9
Release version: 0.53.9-dev0 → 0.53.9
W&B Weave 0.53.12
- fix(weave): preserve complete usage across trace batches fix(weave): evaluate filtered call pages once perf(weave): bound trace attribution for single-span lookups fix(weave): preserve model tool calls in chat projection fix(weave): propagate span expiry to message data chore(weave): update model costs chore(weave): leave the vendored client alone for a...