Upgrade pages for Superset major versions, based on the project's upgrade guide and UPDATING.md breaking change notes.
Upgrading Superset from 4.x or 5.x to the 6.x line: metadata database backup and migrations, the AUTH_OID removal, theming and export changes, newly disallowed SQL functions, and a staging test plan for dashboards and reports.
Preparing for Superset 7.0, in release candidate since October 2026: Python 3.11 minimum, SQLAlchemy 2.0, Playwright-only screenshots, Ant Design 6, owners replaced by subjects and the re-platformed async queries.
Upgrading older Superset deployments to the 4.x line: removed feature flags, filter box migration to native filters, removed Filter Sets and Profile, MediumText migrations that lock MySQL tables and Talisman defaults.
Replacing OpenID 2.0 login, removed with Flask-AppBuilder 5 in Superset 6.0, with OAuth or OpenID Connect providers, LDAP or database login, and keeping user records matched during the switch.
Rebuilding branding after Superset 6.0 dropped THEME_OVERRIDES for Ant Design based themes: theme tokens, brandAppName replacing APP_NAME in 6.1, per-theme fonts replacing CUSTOM_FONT_URLS and testing dashboards.
Switching alert, report and thumbnail screenshots to Playwright and Chromium before Selenium support disappears: image changes, tiled screenshots for large dashboards and testing report output.
Keeping custom chart plugins working across Superset releases: React 17 in 5.0, Ant Design 5 in 6.0 and Ant Design 6 next, renamed form data fields, and a test plan for each upgrade.
Changes to the official images that break custom builds: uv pip install in 5.0, Chromium excluded from lean images in 6.0, translations off by default, and the move to a batteries-included default image with a separate -lean tag.
Planning superset db upgrade on a large metadata database: backups, migrations that lock tables or delete rows, downtime windows, superset init and rolling back when a migration fails.
Matching the Python runtime to the Superset release: 3.11 recommended since 5.0, 3.10 supported through 5.x and 6.x, 3.11 required next, and what it means for PyPI installs, base images and drivers.
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