Change8

Migrating to Weights & Biases v0.26.0

Version v0.26.0 introduces 1 breaking change. This guide details how to update your code.

Released: 4/13/2026

1
Breaking Changes
1
Migration Steps
12
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

wandb beta corewandb beta leetwandb beta leet symonwandb beta leet configgit diff patchwandb.Image@wandb_logkfpartifact.download()User.generate_api_key()AgentSweep

Breaking Changes

Issue #1

Compatibility with server versions older than 0.63.0 (for Dedicated Cloud and Self-Managed W&B deployments) has been dropped.

Migration Steps

  1. 1
    Ensure your server deployment is running version 0.63.0 or newer if using Dedicated Cloud or Self-Managed W&B.

Release Summary

This release introduces significant enhancements to the W&B LEET TUI, adds advanced system monitoring metrics (TPU and NVML GPM), and improves performance by switching JSON serialization to `orjson`. Compatibility with older server versions has been dropped.

Need More Details?

View the full release notes and all changes for Weights & Biases v0.26.0.

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