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What's Changed

Foundatio Updates

Upgraded to latest stable Foundatio v13 (https://github.com/FoundatioFx/Foundatio/releases/tag/v13.0.1) and latest Foundatio.Repositories (v7.18.0, v7.18.1, v7.18.2). This was a massive amount of work which brings in many new features, performance improvements, bug fixes and more. We are working towards completely removing JSON.NET from our entire codebase for improved performance across the board.

Improved Validation.

We've completely migrated from FluentValidation to DataAnnotations + MiniValidation (https://github.com/exceptionless/Exceptionless/pull/2228). This stream lines the code base and gives us much better front end code generation and better error handling across the board for a better user experience.

Next: Sessions Dashboard (UI) by @niemyjski in https://github.com/exceptionless/Exceptionless/pull/2106

  • Stats cards: total sessions, sessions per hour, unique users, average duration.
  • Date histogram chart with session and user series; click-to-range-select on the chart.
  • Sessions table: session summary, duration (live indicator for active sessions), user identity, and date.
  • "View Active" toggle — filters to sessions without a SessionEnd event (premium only).
  • The page correctly gates all data fetching behind has_premium_features, avoiding spurious loads for non-premium organisations. "Upgrade now" opens the billing upgrade dialog rather than navigating away.

Next: Saved Views (Experimental and Feature Flagged) by @niemyjski in https://github.com/exceptionless/Exceptionless/pull/2160

Organisation-wide and per-user private saved views are now shipped end-to-end:

  • Create, rename, and delete saved views from the issues toolbar.
  • Star toggle in the saved view picker to set/remove a view as the default for everyone in the organisation.
  • "Clear Saved View" button always visible in the picker so users can return to the unfiltered state.
  • Empty state shown when no views exist yet.
  • Auto-loading the default view on initial page load (guarded so it only fires once, after the feature flag resolves).
  • Bidirectional default toggle: switching to a different default clears the old one.

Other

Full Changelog: https://github.com/exceptionless/Exceptionless/compare/v8.4.0-beta5...v8.4.0-beta6

Source: README.md, updated 2026-05-09