v0.9.1 is here and it's a massive overhaul of Kavita+. I started Kavita+ 3 years ago with a split goal of bringing some of my initial vision of Kavita to fruition (metadata downloading) and setup a way for me to work full time on Kavita. While unfortunately I'm not there yet monetarily, over those last 3 years I have listened to the community and found a few ideas that could take the integration to the next level. That day has finally come and the Kavita+ in this release is a day and night difference to what we've known before.

Before we get into the Kavita+ features, I'd like to call out a few big items for all users.

Epub Variable Font Support

This was a user submitted feature that expanded Kavita's epub custom fonts to apply the bold/italic variants from the font family. While I was testing the code from the user, I also cleaned up the UX.

Cover Chooser UX

I finally got around to building the new Cover Chooser with @therobbiedavis's design made last year. The new experience separates the different entity covers into tabs, renders out titles for each, and makes the understanding of a locked cover front and center. For Kavita+ users, you can now use the Kavita+ tab to download and apply series/volume covers from Mangabaka and Hardcover. The covers will be grabbed against the Edition and Language if applicable.

Security

With AI on the rise, the amount of AI scanning and reporting issues against repositories is also on the rise. This round, we ended up fixing 10 security issues. All of these issues have a very low rate of exploit, but I would still urge you to keep up to date. All CVEs will be requested 1 week after this update.

Series Rename functionality 🎉

I don't use emoji's often, but I feel it's warranted here. I removed the ability to rename series in the UI a few years ago when I reworked the scanner. The code has been able to support it and user's have been asking for it, with the Kavita+ work, I finally got around to tackling it. If you're using Kavita+, it's even nicer as Kavita can update it for you with language fallbacks (customizable).

Kavita+ Overhaul

There is quite a bit of new stuff, with some documented below. One of the biggest improvements is the media support. Prior, books were left out, but now with Hardcover, we have full book support.

Kavita+ Features added:

• License Management - Ability to renew/cancel/view status about subscription, how much you've used it and some health status
• Accountability - Understand what Kavita+ is doing to your entities via an Audit log, make corrections quickly
• Controls - Expanded controls on what fields Kavita+ writes to and how it interprets data. Tightened matching logic to avoid bad matches.
• Rich Data - Expanded data sources (Hardcover, MangaBaka) for better coverage (books, LNs) and more fields (chapter/volume data, covers, etc)
• Sharability - Expanded scrobble providers: Hardcover, MangaBaka, MAL, and AniList using OAuth for easier token management

License Management

This is the core of the Kavita+ experience. You need to understand when your subscription is renewing, have the ability to change details like your email, cancel and renew the sub, and overall understand the value you're getting from the platform. I designed this new screen to reduce how often you need to reach out to me and provided functionalities for just about everything I've had to manually do over these last 3 years.

From this new dashboard, you can not only see your sub at a glance, but cancel/renew/change email/change billing (Stripe), see how much usage you've gotten from your Kavita+ sub, and health status of providers as well (sinc

All users are strongly advised to update immediately.

There has been a critical vulnerability discovered in Kavita. Please update your instances.

All versions prior to this release are impacted.

If you are holding out on an old release due to some change in Kavita, please raise a FR and I will work with you to help bridge that feature gap.

Details/CVE will be shared at a later date to give users time to update.

Edit: CVE Published: CVE-2026-47202

Changed

• Changed: OIDC validation no longer requires super safe urls.

Fixed

• Fixed: Fixed reading list detail tab not having tabs wired up.
• Fixed: Fixed series/chapter rating always returning 0 if you had rated it.
• Fixed: Fixed bookmarks not loading.
• Fixed: Fixed text & image bookmarks being switched.
• Fixed: Fixed long chapter names causing wrapping in activity overview.
• Fixed: Fixed epub bookmarks not loading.
• Fixed: Fixed text & image bookmarks being switched.
• Fixed: Fixed long chapter names causing wrapping in activity overview.
• Fixed: Fixed people not being removed from series if chapter metadata has none.
• Fixed: Fixed series not being added to a collection under some circumstances.
• Fixed: Fixed early reloading causing double K+ plus calls when matching on the series page.
• Fixed: Fixed annotations duplicating & swallowing text under some circumstances.
• Fixed: Fixed annotations not being shown under specific circumstances.
• Fixed: Fixed external links containing sometimes being scoped out of a book.
• Fixed: Fixed search being unreliable when searching with year metadata.

It seems almost like a hard rule that the 2nd release of the year is always a spring cleaning release and this time, we've really put the new knowledge we've built up back into Kavita to clean up old systems, rebuild foundations, and then deliver some massive improvements on top of it. This release is packed with nearly 200 change log items and overhauled 2 major UI systems that have already allowed some amazing enhancements.

Highlights

Performance and Security

This is first and foremost. Kavita had a few security issues brought against it and we've ensured that we fixed those issues (CVEs will be requested after the release) but also hardened more of the API to ensure no other issues. These issues are likely not going to be abused, but I would encourage everyone to update.

In addition, we fixed one oversight around how often Kavita was writing to the DB (noticeable on non-SSD setups) and fixed the database is locked error (mostly) by changing how transactions are created in Kavita and implementing some extra waiting when concurrent writes are occurring. For me, I was seeing them a lot in the webtoon reader (which also got some nice love) and now I don't.

Reading List

There is a lot to cover but the long story short is, I redesigned the screens to bring forward more information, I added the ability to filter against reading lists by a number of fields, I added tags which are user-defined (or can come from CBL v2 lists), and I made Smart Filters work with Reading Lists, so you can bind them to your Side Nav/Dashboard. You can also export them as CBL (v1/v2) if you want to apply some arbitrary sorting in another program then re-import them.

CBL Import Manager

This has been on my mind since I first saw the v2 CBL spec and that is an overhaul to the CBL Import flow. Here's what I did:

• Rewrote the matching logic with tons of fallbacks to always try to make the best match wiki
• Allow the importer to make decisions and save those decisions as Remap Rules for future imports (admin's can promote so all users get the benefit)
• Allow users to browse lists from the CBL Repo in Kavita and just import from there (or a file/url)
• Auto-update lists for the users
• And of course, v2 support (with tags)

Of course there is more to the story, but overall I feel like the Reading List and CBL Flow is in a great place.

Multi-download Support

This has been an item I've been wanting for 2 years now and I finally got to finish it off. You can now multi-select series, collections, chapters, volumes, whatever and Kavita will deconstruct down to the individual items, queue them up and process one by one. For me, a bit problem was FF on Android, I had to deal with a prompt on every download, but no more! The download manager is smart and remembers what you've downloaded and will show a mark on the card to let you know you've synced it to the device. We got retry and cancel support and just a ton of polish. I hope you'll enjoy this as much as me.

Misc

Mihon and Panels users rejoice, the reading session sy

We decided to issue a small hotfix, with minor fixes and some enhancements on a new endpoint related to Auth Keys, to ensure it's easy from the get-go for external app creators.

Changed

• Changed: The image reader will now always send a progress event for chapters with exactly one page.

Fixed

• Fixed: Fixed re-read prompt not being disabled when setting is 0
• Fixed: Fixed empty re-read setting breaking saving flow
• Fixed: Fixed theme being reset
• Fixed: Fixed some tables not loading in the statistics page for admins, breaking the page.
• Fixed: Fixed inconsistent behaviour with the /api/plugin/authkey-expires endpoint.