Paperless-ngx
Paperless-ngx shipped seven releases in October, two of them for security
Comparison · Collab
BookStack vs Zettlr
A side-by-side editorial comparison of BookStack and Zettlr — release velocity, themes, recent moves, and the top alternatives to consider.
BookStack vs Zettlr: at a glance
What is BookStack?
BookStack's first feature release since May requires an APP_KEY and needed two quick patches
After four months of security patches on the 26.05 line, BookStack shipped v26.09 in late September: an interface layout system with theme support, API search within a book or chapter, a page scroll indicator, changelog messages on page API writes, and password changes that require the current password. It also stopped falling back to a default APP_KEY. Two patches followed within a month, one checking ZIP imports' real uncompressed size and one fixing comment and attachment exposure around the recycle bin and drafts.
What is Zettlr?
Zettlr added admonitions after six years, then spent a release fixing its updater.
Zettlr 4.8.0 brought admonitions, a feature six years in the making, plus translation updates and a fix for a long-standing logic bug in search. 4.9.0 followed in late October to stop a false 'Update failed' error introduced by 4.8, drop macOS 12 and old Ubuntu support, distrust the eMudhra TLS certificates and render reference-style images.
BookStack vs Zettlr: editorial side-by-side
BookStack
2.5COLLAB
BookStack's first feature release since May requires an APP_KEY and needed two quick patches
◆ Current state
After four months of security patches on the 26.05 line, BookStack shipped v26.09 in late September: an interface layout system with theme support, API search within a book or chapter, a page scroll indicator, changelog messages on page API writes, and password changes that require the current password. It also stopped falling back to a default APP_KEY. Two patches followed within a month, one checking ZIP imports' real uncompressed size and one fixing comment and attachment exposure around the recycle bin and drafts.
◆ Where it's heading
Security hardening keeps setting the cadence even after a feature release, with researcher reports credited in most patches. The new layout system opens the UI to customization through the theme system.
◆ Prediction
Further 26.09.x security releases are likely given the steady run of researcher reports; the entries give no date for the next feature release.
Zettlr
2.5COLLAB
Zettlr added admonitions after six years, then spent a release fixing its updater.
◆ Current state
Zettlr 4.8.0 brought admonitions, a feature six years in the making, plus translation updates and a fix for a long-standing logic bug in search. 4.9.0 followed in late October to stop a false 'Update failed' error introduced by 4.8, drop macOS 12 and old Ubuntu support, distrust the eMudhra TLS certificates and render reference-style images.
◆ Where it's heading
Releases arrive roughly monthly and alternate between a headline writing feature and cleanup of the previous one. The app is tracking Electron's platform support, so older operating systems will keep falling away.
◆ Prediction
A small 4.9.x fix release or a feature-led 4.10 in about a month fits the pattern; the entries don't hint at its contents.
Alternatives to BookStack and Zettlr
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either BookStack or Zettlr.
Slack
Slack lets companies manage Slackbot skills from code and CI, not only by hand
Read the Docs
Read the Docs moves builds to Python 3.14 and Ubuntu 26.04 by default.
Komga
Komga's NextUI beta keeps gaining features while the old UI gets only translations.
Capacities
Capacities adds whiteboards and a global graph to its object-based notes.
Guru
Guru's Knowledge Agents get the plumbing that makes their answers checkable and safe.
See all BookStack alternatives → · See all Zettlr alternatives →
Recent activity from BookStack and Zettlr
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 8d agoZettlrZettlr 4.9 fixes update errors and drops macOS 12
- 13d agoBookStackBookStack 26.09.2 closes recycle-bin and draft attachment leaks
- 1mo agoBookStackBookStack 26.09.1 checks real ZIP size and fixes chapter permissions
- 1mo agoBookStackBookStack 26.09 adds a UI layout system and scoped search API
- 1mo agoZettlrZettlr 4.8 adds admonition blocks
- 1mo agoBookStackBookStack 26.05.5 fixes social login account mismatches
- 2mo agoBookStackSecurity release closes a ZIP-import RCE and permission bypasses
- 3mo agoBookStackSecurity release fixes five issues including auth matching
- 3mo agoZettlrZettlr 4.7 adds long-requested custom shortcuts
- 4mo agoZettlrZettlr 4.6 fixes regressions from the editor transition
- 5mo agoZettlrZettlr 4.5 adds a long-running task indicator
- 6mo agoZettlrZettlr 4.4 improves the file manager and security model
Frequently asked questions
What is the difference between BookStack and Zettlr?
They serve adjacent needs but don't currently overlap on shipped themes. BookStack and Zettlr are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is BookStack better than Zettlr?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. BookStack and Zettlr are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to BookStack?
Top BookStack alternatives in Collab are ranked by recent ship velocity. Browse the "BookStack alternatives" section above for the current picks, or visit /alternatives/bookstack for the full list with editorial commentary on each.
What are the best alternatives to Zettlr?
Top Zettlr alternatives in Collab are ranked by recent ship velocity. Browse the "Zettlr alternatives" section above for the current picks, or visit /alternatives/zettlr for the full list with editorial commentary on each.