Apache Superset Repo Recap: September 2026

Apache Superset recorded a September high of 840 merged pull requests from 117 contributors, including 51 first-time contributors, while its GitHub community approached 75,000 stars and Slack added more than 170 members. Major developments made semantic views first-class datasources throughout chart creation, exploration, permissions, and security controls, while Global Async Queries was migrated to the Global Task Framework, replacing separate asynchronous infrastructure with shared, deduplicated tasks, caching, websockets, and fallback polling. The release also introduced a native candlestick chart, a headless REST query API for datasets and semantic views, fit-aware bar-chart labels, improved dense and weekly time axes, safer dataset-deletion warnings, and a tool for inlining dashboard CSS imports. Numerous enhancements expanded charting, dashboard filtering, SQL Lab behavior, database support, MCP and AI tooling, reporting, accessibility, internationalization, and developer infrastructure, alongside performance improvements, dependency updates, CI hardening, stricter guest and row-level-security enforcement, and fixes for secret masking, encrypted database connections, and embedded access. Work continued separately on Dashboard v2 and migration of SQL Lab asynchronous execution to the Global Task Framework.

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