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Maintainerr

v3.15.3 Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 1mo Media Servers
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

docker jellyfin maintainerr maintenance movies plex
+6 more
plex-media-server radarr seerr sonarr tv-series tv-shows

Summary

AI summary

Updates Highlights, Internal, and Performance across a mixed release.

Full changelog

3.15.3 (2026-06-23)

Highlights

  • Improved Plex rule evaluation performance by prefetching watch history in bulk, reducing redundant API calls (#3082).
  • Standardized UI action buttons with consistent corner radii, text styles, and theme colors (#3143, #3144).

Fixes

  • Log benign SSE client disconnects without a stack trace (#3145).
  • Initialize the active media server adapter immediately after a switch to prevent false connection-test failures.
  • Dropped BETA tag from notifications and marked download client as BETA.
  • Fixed ExecuteButton corner radius to align with the shared Button component (#3144).
  • Standardized action buttons on the shared Button component and applied consistent theme colors (#3143).
  • Explicitly installed corepack in the dev container for Node 26+ compatibility (#3141).

Performance

  • Bulk-prefetched Plex watch history for rule evaluation, reducing redundant API calls (#3082).

Internal

  • Documented the L1/L2/L3 confinement model for agents in the devbox.
  • Fixed stale workspace path in agent documentation.
  • Simplified devbox workflow to work and push from inside the container.
  • Documented remote devbox workflow.
  • Documented development environment.

Dependencies

  • Updated 1 dependency, including explicit installation of corepack for Node 26+ (#3141).
View diff on GitHub

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About Maintainerr

Looks and smells like Seerr, does the opposite. A library maintenance tool for Plex and Jellyfin.

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Related context

Earlier breaking changes

  • v3.13.0 Section without an operator is now treated as OR instead of AND; migration not reversible.
  • v3.13.0 Per-group exclusions now apply only to their own group, not globally.
  • v3.13.0 Exclusions are now either global or per-group; removing a global exclusion requires re-adding per-group ones.
  • v3.12.1 Renames `WATCH_HISTORY_CONCURRENCY` to `RULE_EVALUATION_CONCURRENCY` for clarity.
  • v3.11.0 Overlay reset operations are now gated against concurrent processing runs.

Beta — feedback welcome: [email protected]