← Back to all sparks
K

Komga

COLLAB
Velocity6.3

Self-hosted media server for comics, manga and ebooks

Komga is rewriting its web UI in the open, shipping the beta alongside the old one.

self-hostedfrontend-rewritecomics-mangaarchive-formatslocalizationopds
Current state
Komga's release cadence is dominated by NextUI, a ground-up rewrite of the web interface that landed in beta with 1.26.0 and is served next to the existing UI at /next rather than replacing it. The three patch releases that followed within 48 hours were almost entirely NextUI shakedown work — scroll restoration, selection behavior, stylesheets failing to load under Tomcat. Underneath the interface work the server keeps widening format support, with rar5 handling in plain Java and solid rar4 archives earlier in the summer.
Where it's heading
The project is running a long, deliberately cautious frontend migration: both UIs ship in the same binary, the feature gap is tracked publicly in an issue, and users opt in by URL. That arrangement should persist across several minor versions before the old WebUI is retired. The parallel v2 referential API suggests the rewrite is also being used to revise the server contract rather than only restyle the client.
Prediction
Near-term releases should keep closing the NextUI feature gap issue by issue, with patch releases landing within days of each other. The old WebUI is unlikely to be removed before NextUI reaches parity and browser refresh stops falling back to it.

Recent moves

  1. 6d ago

    Translation updates and a release tooling fix

    A build fix for release creation plus Weblate translation updates covering Korean, Japanese, and German. Nothing here changes behavior for a running server.

    View source ↗
  2. 7d ago

    NextUI beta fixes: scroll, selection, and loading states

    Eight NextUI fixes covering scroll restoration, selection affordances, and a perpetual loading state on unknown page hashes — the expected shakedown two days after a beta interface ships. The remainder is tests, translations, and a Discord release webhook.

    View source ↗
  3. 9d ago

    NextUI beta: a parallel rewrite of the Komga web interface

    ⚡ SPARK

    This is the release the last month of patches orbits: a ground-up interface rewrite shipped in beta and served next to the existing one, alongside a v2 referential API. It sets the project's direction for the next several minor versions.

    View source ↗
  4. 9d ago

    Fix missing NextUI stylesheets when served from Tomcat

    A single-fix release for NextUI CSS layers failing to load when served from Tomcat, published hours after the beta went out. A configuration escape refactor and a Korean translation round it out.

    View source ↗
  5. 1mo ago

    Solid RAR4 archive support

    Solid rar4 archive support is the substantive item, continuing the steady widening of readable formats that led to rar5 handling in 1.26.0. The Kobo content restriction fix closes a real access-control gap; the rest is dependency and Spring Boot maintenance.

    View source ↗
  6. 3mo ago

    Fixes for EPUB parsing, Kobo, KOReader, and OPDS2

    A maintenance release cleaning up EPUB table-of-contents parsing and compatibility with the Kobo, KOReader, and OPDS2 clients. An Ubuntu 26.04 Docker base image and dependency bumps make up the remainder.

    View source ↗