Mattermost 12.0
Mattermost 12.0
The Mattermost 12.0 reaches end of service life on Jan 15, 2027. Third-party support keeps it managed past that date — issue management, vulnerability remediation, and compliance maintenance from 24/7 engineers.
24/7 engineers own your Mattermost 12.0 incidents end to end.
Mitigation and patch-around guidance when the vendor no longer ships fixes.
Controls evidence and documentation that keep auditors satisfied.
Specifications
- product
- mattermost
- release
- 12.0
- product Label
- Mattermost
- release Label
- 12.0
- codename
- lts
- latest Version
- 12.0.2
- release Date
- 2026-10-16
- maintained
- true
- source Url
- https://endoflife.date/mattermost
Lifecycle Dates
- End of Service Life
- Jan 15, 2027
- Last OEM Support
- Jan 15, 2027
OEM vs. 3rd Party Support
See how third-party support compares to the vendor contract for Mattermost 12.0 — monitoring, break/fix, vulnerability work, operations and compliance, before and after EOSL.
| Feature | OEM Support | 3rd Party Support |
|---|---|---|
| Post-EOSL Support | ||
| Break/Fix Support | Until EOSL | |
| 24/7 Monitoring | ||
| Vulnerability Scanning & Remediation | ||
| Managed Operations | ||
| Procedure & Configuration Review | ||
| Compliance & Audit Documentation | Limited | |
| Discounted Migration to Other Platforms |
Why Choose 3rd Party Support for Mattermost 12.0?
Vulnerability Remediation
Scanning, mitigation and patch-around guidance for Mattermost 12.0 when the vendor no longer ships fixes.
Compliance Maintenance
Procedure review, controls evidence and the documentation auditors ask for — maintained continuously, not scrambled at audit time.
24/7 Expert Support
Engineers who know this release monitor, manage and fix issues around the clock — break/fix to managed operations.
Mattermost 12.0 Support: Frequently Asked Questions
Is the Mattermost 12.0 still supported?
Yes, but Mattermost support for the Mattermost 12.0 ends on Jan 15, 2027. You can upgrade on the vendor's schedule, or move to third-party support and keep the release you're on — issues managed, vulnerabilities remediated, compliance maintained.
When is the Mattermost 12.0 end of service life (EOSL) date?
Mattermost lists the end of service life for the Mattermost 12.0 as Jan 15, 2027.
Can I keep using the Mattermost 12.0 after its EOSL date?
Yes. EOSL means Mattermost stops issuing patches and support — the software itself keeps running. Third-party support covers it from there: issue management, security vulnerability remediation, and the compliance documentation auditors ask for, for as long as you choose to run it.
How much does third-party support for the Mattermost 12.0 cost?
Typically 40-70% below the OEM maintenance renewal price. Exact pricing depends on quantity, service level and location. You get an indicative price within 24 hours and a firm quote within 48.