Teable
Teable ships Scheduled Routines, a four-tier AI model system, and multi-model image generation — three sparks in five days
Comparison · Collab
EGroupware vs Mattermost
A side-by-side editorial comparison of EGroupware and Mattermost — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:self-hosted
EGroupware vs Mattermost: at a glance
What is EGroupware?
EGroupware patches critical security vulnerabilities weekly while adding S/MIME certificate management.
EGroupware is an enterprise groupware suite in heavy security-patch mode — five releases in six weeks have all led with security fixes rated high or critical. The 23.1 branch hit end-of-life in August 2026 with a final security release, consolidating the user base on 26.x. Outside the security cadence, the August 19 release added meaningful S/MIME improvements: CSR export/import, self-signed certificate generation, PKCS#7 upload support, and intermediate CA cert handling.
What is Mattermost?
Mattermost v11.11 adds data spillage exposure tracking as v12.0 breaking changes loom
Mattermost is a self-hosted, air-gap-capable team communications platform with a clear focus on defense, government, and critical infrastructure. The v11.11 release adds a post exposure radius report that lets compliance reviewers quickly see who may have accessed a flagged message. Recent releases have extended ABAC governance to team-level membership with native user attributes, removing the integration overhead previously required for attribute-based policy control.
EGroupware vs Mattermost: editorial side-by-side
EGroupware
5.0COLLAB
EGroupware patches critical security vulnerabilities weekly while adding S/MIME certificate management.
◆ Current state
EGroupware is an enterprise groupware suite in heavy security-patch mode — five releases in six weeks have all led with security fixes rated high or critical. The 23.1 branch hit end-of-life in August 2026 with a final security release, consolidating the user base on 26.x. Outside the security cadence, the August 19 release added meaningful S/MIME improvements: CSR export/import, self-signed certificate generation, PKCS#7 upload support, and intermediate CA cert handling.
◆ Where it's heading
With 23.1 EOL'd, development is concentrated on the 26.x branch. The S/MIME additions signal a deliberate push to strengthen email security credentials for compliance-sensitive enterprise users. The pace of security vulnerabilities being addressed is unusually high and may reflect active research against the codebase; once that subsides, the S/MIME track is the most visible direction for new capability.
◆ Prediction
Security patch cadence should stabilize after the current vulnerability cluster is addressed. S/MIME groundwork points toward further email encryption additions — possibly PGP support or advanced certificate authority management — in the next 1-2 releases.
Mattermost
5.0COLLAB
Mattermost v11.11 adds data spillage exposure tracking as v12.0 breaking changes loom
◆ Current state
Mattermost is a self-hosted, air-gap-capable team communications platform with a clear focus on defense, government, and critical infrastructure. The v11.11 release adds a post exposure radius report that lets compliance reviewers quickly see who may have accessed a flagged message. Recent releases have extended ABAC governance to team-level membership with native user attributes, removing the integration overhead previously required for attribute-based policy control.
◆ Where it's heading
The product is building toward a full-stack governance and AI audit layer for regulated operators. v12.0 (October 2026) carries a significant deprecation load—RHEL 7/8 drop, glibc baseline bump, plugin breaking changes—signaling a platform modernization cycle. Alongside the product work, a sustained thought leadership push on Zero Trust maturity, sovereign AI, and agentic AI in air-gapped environments is positioning Mattermost directly against cloud-hosted collaboration tools in classified environments.
◆ Prediction
v12.0 will consolidate the recent ABAC and AI agent audit capabilities into a more integrated governance surface; self-hosted operators on RHEL 7/8 need to begin their infrastructure migration now to stay on the supported path.
Alternatives to EGroupware and Mattermost
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 EGroupware or Mattermost.
GitHub
GitHub Copilot tightens enterprise governance while AI security scanning drops its CodeQL prerequisite
SiYuan
SiYuan v3.8.4 beta cycle adds agent-controlled database fields, MiniMax image gen, and skill file management
Nextcloud
Nextcloud runs three LTS branches in parallel, shipping bug fixes and quiet performance wins.
Happeo
Happeo doubles down on SEO content to own intranet search terms for mid-market buyers.
AFFiNE
AFFiNE ships stable iOS Share Extension imports while patching editor correctness and selfhost deployment
See all EGroupware alternatives → · See all Mattermost alternatives →
Recent activity from EGroupware and Mattermost
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 7h agoMattermostMattermost v11.11: Data Spillage Exposure Radius Report
- 1d agoMattermostOperational Resilience: Why It Must Be a Daily Practice
- 6d agoMattermostZero Trust in Practice: Identity, Part 2 — Advanced Identity, from Static Roles to Dynamic Access
- 8d agoMattermostAI Audit Trails: The Missing Piece of Enterprise AI Adoption
- 9d agoEGroupware26.9.20260907
- 15d agoMattermostZero Trust in Practice: Identity, Part 1 — Building the Identity Foundation
- 20d agoMattermostWhat will be deprecated in Mattermost v12.0? (October 2026)
- 22d agoEGroupware26.8: Critical security vulnerabilities patched
- 28d agoEGroupware23.1 final security release — branch now EOL
- 28d agoEGroupware26.8: S/MIME CSR, self-signed certs, PKCS#7 support added
- 1mo agoEGroupware26.8.20260811
- 1mo agoEGroupware23.1.20260804
Frequently asked questions
What is the difference between EGroupware and Mattermost?
Both compete on the same themes — self-hosted — within Collab. EGroupware and Mattermost are shipping at a similar cadence (velocity 5.0 vs 5.0, 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 EGroupware better than Mattermost?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. EGroupware and Mattermost are shipping at a similar cadence (velocity 5.0 vs 5.0, 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 EGroupware?
Top EGroupware alternatives in Collab are ranked by recent ship velocity. Browse the "EGroupware alternatives" section above for the current picks, or visit /alternatives/egroupware for the full list with editorial commentary on each.
What are the best alternatives to Mattermost?
Top Mattermost alternatives in Collab are ranked by recent ship velocity. Browse the "Mattermost alternatives" section above for the current picks, or visit /alternatives/mattermost for the full list with editorial commentary on each.