Prowlarr
Prowlarr adds Trusted Networks and host validation, then moves to 2.7
Comparison · Collab
BookStack vs Guru
A side-by-side editorial comparison of BookStack and Guru — release velocity, themes, recent moves, and the top alternatives to consider.
BookStack vs Guru: 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 Guru?
Guru's Knowledge Agents get the plumbing that makes their answers checkable and safe.
Guru's late-October releases all serve the Knowledge Agent. Agents can now return the records behind an analytical answer, read SCIM-provisioned profile attributes such as department and manager, and choose from sources admins can rename. On the governance side, DLP masking now covers what users type before it is logged or sent to the LLM, and each agent gets its own chat retention window of 1 to 90 days.
BookStack vs Guru: 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.
Guru
5.0COLLAB
Guru's Knowledge Agents get the plumbing that makes their answers checkable and safe.
◆ Current state
Guru's late-October releases all serve the Knowledge Agent. Agents can now return the records behind an analytical answer, read SCIM-provisioned profile attributes such as department and manager, and choose from sources admins can rename. On the governance side, DLP masking now covers what users type before it is logged or sent to the LLM, and each agent gets its own chat retention window of 1 to 90 days.
◆ Where it's heading
The arc runs from giving agents write access to making them auditable. Mid-October brought a rebuilt Teams app with AI answers, MCP image uploads into card drafts and answer editing for skills-based agents; late October shifted to data controls and to answers that show their workings. Guru is treating the agent as the main interface and the card base as what it works on.
◆ Prediction
Expect the stated Mermaid gap in Slack, email and exports to close, and more per-agent settings in the Guardrails section where retention now sits.
Alternatives to BookStack and Guru
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 Guru.
Lidarr
Lidarr starts a 3.2 pre-release while 3.1 gains host and network checks
Dropbox Sign
Dropbox Sign's API can now check a PDF's fields before a signature request goes out
Paperless-ngx
Paperless-ngx shipped seven releases in October, two of them for security
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.
See all BookStack alternatives → · See all Guru alternatives →
Recent activity from BookStack and Guru
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3d agoGuruRename Sources and Folders or Drives
- 3d agoGuruKnowledge Agents Can Now Return the Records Behind the Numbers
- 3d agoGuruSCIM Now Fills in Guru Profile Attributes
- 7d agoGuruMermaid diagrams in cards and Chat
- 7d agoGuruSet chat thread retention for each Knowledge Agent
- 7d agoGuruDLP masking now covers what users type
- 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 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
Frequently asked questions
What is the difference between BookStack and Guru?
They serve adjacent needs but don't currently overlap on shipped themes. Guru is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is BookStack better than Guru?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Guru is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. 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 Guru?
Top Guru alternatives in Collab are ranked by recent ship velocity. Browse the "Guru alternatives" section above for the current picks, or visit /alternatives/guru for the full list with editorial commentary on each.