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backstage release v0.104.0

Feb 9, 2026 Developer Portal backstage v0.104.0

Added

Extract error reporter API into dedicated @giantswarm/backstage-plugin-error-reporter-react package.
Enhance Flux details panel with creation timestamp, interval, and resource-specific metadata.
Add missing pages to telemetry tracking (Home, Catalog graph, Deployment details, Flux, AI Chat).

Changed

Replace TelemetryProvider with standard Backstage AnalyticsApi implementation for TelemetryDeck.
Report unknown page telemetry events as warnings via errorReporterApi.

Fixed

Fix AsyncValue component to properly handle falsy values.
Fix API version discovery for resources with different version support. See ./docs/releases/v0.104.0-changelog.md for more information.