This page defines the support policy for LM-X License Manager 6.0 and newer. It is intended to communicate the LM-X support period for security maintenance and related compatibility expectations.
Versioning and Support Overview
LM-X releases are supported individually for 2 years from their general release date.
- Each generally released LM-X version receives 2 years of security maintenance from its release date.
- Supported LM-X versions receive security fixes only.
- After the 2-year support period ends, the release becomes operational but unsupported even if it still remains functional in an existing deployment.
Customers are expected to stay on the latest available LM-X release whenever possible. Earlier releases may remain supported during their 2-year support period, but they are not the recommended target for new deployments or long-term operation.
Compatibility Rules
At X-Formation, we make every effort to ensure that existing deployed software continues to work with newer LM-X license servers, and that older license files can be read by newer license servers during the supported lifetime of the relevant LM-X releases.
LM-X is designed for backward compatibility:
- older LM-X license files can be read by newer LM-X license servers
- older LM-X clients can work with newer LM-X license servers
- existing deployed applications are expected to continue working when LM-X is upgraded within the supported line
LM-X does not support future compatibility:
- a newer LM-X client is not expected to work with an older LM-X license server
- a newer LM-X license file is not expected to work with an older LM-X deployment
When upgrading LM-X, note the following:
- existing deployed client applications and existing license files are expected to continue working with newer LM-X versions
- new license files cannot be used by older LM-X applications or older LM-X license servers
- if floating licenses are distributed, end users may also need to upgrade their LM-X License Server to use newer LM-X licenses
- external redistributables used by LM-X integrations, such as Java, .NET, or similar bindings, must also be updated to the corresponding newer versions when required
X-Formation may limit or discontinue compatibility in cases where maintaining compatibility would compromise the security of protected applications, deployed systems, or supported LM-X releases.
Current Supported Versions
The following table shows LM-X versions currently tracked by this policy.
| Version | Release date | Status | Support note |
|---|---|---|---|
| 6.1 | 2026-05-21 | Supported | Latest released version. |
| 6.0.7 | 2026-02-20 | Supported | Supported until 2028-02-20 |
| 6.0.6 | 2025-12-10 | Supported | Supported until 2027-12-10 |
| 6.0.5 | 2025-10-08 | Supported | Supported until 2027-10-08 |
| 6.0.4 | 2025-09-11 | Supported | Supported until 2027-09-11 |
| 6.0.3 | 2025-07-07 | Supported | Supported until 2027-07-07 |
| 6.0.2 | 2025-06-10 | Supported | Supported until 2027-06-10 |
| 6.0.1 | 2025-05-29 | Supported | Supported until 2027-05-29 |
| 6.0 | 2025-04-25 | Supported | Supported until 2027-04-25 |
| 5.6.4 | 2024-10-23 | Supported | Supported until 2026-10-23 |
| 5.6.3 | 2024-10-02 | Supported | Supported until 2026-10-02 |
| 5.6.2 | 2024-10-01 | Supported | Supported until 2026-10-01 |
| 5.6.1 | 2024-09-10 | Supported | Supported until 2026-09-10 |
| 5.6 | 2024-07-31 | Supported | Supported until 2026-07-31 |
| 5.5.11 | 2024-07-11 | Not supported |
Unsupported versions and legacy platforms
Unsupported LM-X versions may still function in some environments, but they are considered operational but unsupported after their 2-year support period ends.
For unsupported versions:
- X-Formation does not commit to providing security fixes
- X-Formation does not commit to maintaining compatibility with newer components, platforms, or deployment models
- X-Formation does not commit to providing remediation for defects or security issues affecting unsupported releases
Policy updates
This policy may be updated when a new LM-X major release is published, when supported platforms change, or when security and lifecycle requirements require the LM-X support period to be revised.