7.4.0 Yellowbrick Release Notes

Release Information
Cloud Platform	7.4.0-81263.6bd8d141
Appliance Platform	7.4.0-81263
Release Date	12/10/2025, 12:44:10 PM

This release of Yellowbrick delivers key enhancements for observability, developer extensibility, platform stability, and performance.

New features

• Block Repair:
  • Introduces an automated media integrity and block-repair utility for Yellowbrick appliances.
  • Detects and repairs under-reported bad blocks on affected SSDs, improving hardware reliability and reducing maintenance downtime.
• Telemetry and Monitoring for Appliance:
  • Telemetry and monitoring now extends to on-premises appliance systems, providing observability across all deployment types.
  • Metrics are exported through Prometheus-compatible endpoints. Standardized metric groups and alert rules simplify issue triage and workload monitoring.
• WebAssembly User-Defined Functions (WASM):
  • Adds support for WASM-based UDFs, enabling developers to safely run custom code inside Yellowbrick.
• SQL UNLOAD for Microsoft Azure:
  • Expands the UNLOAD TABLE SQL command to Azure Blob Storage, allowing users to export data directly to Azure-hosted object storage, complementing existing support for AWS and GCP.
• Geospatial Enhancements:
  • Introduces H3-based geospatial indexing and optimized spatial joins for faster proximity searches, regional aggregations, and location-based analytics at scale.
• Stack Overflow Protection for Deep Expression Trees:
  • Adds runtime stack depth monitoring to prevent compute node crashes caused by deeply nested expressions (e.g., large NOT IN lists). Queries exceeding the safe depth threshold are terminated gracefully before impacting stability.
• Expanded IN-list and OR-condition Rewrites:
  • The query planner now recognizes constant expressions when optimizing IN, NOT IN, and equivalent OR conditions, improving performance for complex filters.

Upgrade Requirements

For appliance upgrades, contact Customer Support to review the process and schedule the upgrade.

Detailed changelog

See the detailed changelog for itemized lists of behavioral and compatibility changes, bug fixes, known issues and CVE remediations.