Table of Contents
Authlete has continuously evolved to deliver meaningful improvements to both its UI and APIs. At the same time, we recognize that for our users, stability and reliability are critical. To better support these needs, we are introducing Long-Term Support (LTS) versions of Authlete. LTS releases provide a stable and predictable foundation for production environments, allowing you to rely on consistent behavior over time, while still giving you the flexibility to adopt the latest standards and features at your own pace.
Long-Term Support (LTS) is a commitment from Authlete to provide a stable version of the product that will no longer undergo major architectural changes or API/UI overhauls during its lifecycle. This ensures that users can rely on a supported environment without needing to upgrade frequently.
As of April 2nd, 2026, only Authlete 2.3 is eligible for LTS. The current patch version for LTS is 2.3.47 and will be upgraded when the need to deploy an update arises.
Note that Authlete 3.0 is also scheduled for LTS. Details will be announced at a later date during H2 2026.
The Authlete management consoles (Client Developer Console and Service Owner Console) do not currently display the Authlete server version on screen. To find out which version you are running, use one of the methods below.
/api/info endpointThe Authlete server exposes the /api/info endpoint, which returns the current server version and the list of enabled features. No authentication is required.
curl -s https://<your-authlete-api-host>/api/info
Replace <your-authlete-api-host> with the API host of your environment.
Example response:
{
"version": "2.3.47",
"features": ["ciba", "dcr", "fapi", "..."]
}
The version field contains the version of the server you are currently using.
Note: If you are using the IP restriction option on a Dedicated Cloud environment, you will need to call the endpoint from an allowed IP address.
If the methods above are not convenient, please contact Authlete Support and we will look up the version of your environment for you.
LTS versions will be supported for a period of 3 years.
LTS versions will not benefit from backports of new features or specifications. However, until their official EoL date, they will keep receiving fixes for critical bugs and security issues.
⚠️ Once a version reaches EoL, it will no longer receive updates of any kind. Users may continue to use the version at their own discretion, understanding that Authlete does not provide patches, fixes, or technical support for EoL versions. We strongly recommend to upgrade to the LTS version to maintain support, or to the active 3.0 version to benefit from the latest features.
| Update Type | Active Development | LTS | Legacy Grace Period | End of Life |
|---|---|---|---|---|
| New features & specifications | ✅ | ❌ | ❌ | ❌ |
| Critical bug fixes | ✅ | ✅ | ❌ | ❌ |
| Security patches | ✅ | ✅ | ✅ | ❌ |
| Stability & performance fixes | ✅ | ✅ | ❌ | ❌ |
| Technical support | ✅ | ✅ | 🟠 | ❌ |
We understand it is simply not possible for the majority of our users to immediately upgrade their environment to one of the supported LTS versions. For this reason, we are committed to maintaining support for all versions of Authlete until March 2027. During that legacy grace period, investigation and troubleshooting support will be provided. However, if an issue is identified as version-dependent, we may recommend upgrading to an LTS version, or the the version in active development.
| Version | Initial Release | LTS Start | EoL Date | Status |
|---|---|---|---|---|
| Authlete 1.1 | June 2017 | Not Eligible | 31st March 2027 | ⚠️ Legacy Grace |
| Authlete 2.0 | August 2018 | Not Eligible | 31st March 2027 | ⚠️ Legacy Grace |
| Authlete 2.1 | December 2019 | Not Eligible | 31st March 2027 | ⚠️ Legacy Grace |
| Authlete 2.2 | March 2021 | Not Eligible | 31st March 2027 | ⚠️ Legacy Grace |
| Authlete 2.3 | January 2023 | April 2026 | 31st March 2029 | ✅ LTS |
| Authlete 3.0 | November 2024 | TBA | TBA | ⏩ Active Development |
ℹ️ Going forward, all new non-LTS versions of Authlete will be supported for 6 months.
Authlete 3.0 is the active development version and will keep receiving updates every month, as has been the case for the past few years. Additionally, a new version will be chosen for LTS once every two years. This overlap with the LTS support period ensures that there will always be room for a smooth transition from one LTS version to another. If data migration is required for an upgrade, our team will make sure to provide the necessary documentation and support to users. Version upgrades to an LTS version or a version in active development are free of charge.
Authlete is committed to giving customers sufficient advance notice before any version reaches End of Life:
Versions that have reached End of Life are provided as-is. Authlete accepts no responsibility for security vulnerabilities, bugs, data loss, or service disruptions arising from the continued use of unsupported versions. Customers using EoL versions do so at their own risk and are strongly encouraged to upgrade to a supported version.
A: You can check your current version at https://api.example.com/api/info.
A: Yes, we expect some service interruption to happen when upgrading from 2.2 to 2.3.
A: No. Continuing to use version 2.3 will qualify you for LTS support. The current LTS version is 2.3.47.
A: No. Shared Cloud always provides the latest version applied by Authlete. As of May 2026, Shared Cloud (so.authlete.com, etc.) has also been updated to 2.3.47 LTS.
A: After reaching End-of-Life (EoL), patches, bug fixes, and technical support will no longer be provided (this applies even to paid support contracts). The current EoL for 2.3 LTS is March 31, 2029. During the extended support period before EoL, we will continue to accept version-independent general investigations and troubleshooting requests.
A: A banner will be displayed in the Shared Cloud management console. The Self-Managed (on-premise) management console will not display a banner; information will be provided via email and through the support desk.
A: No. There are no additional charges for upgrading to the LTS version or the latest version. For Self-Managed (on-premise) versions, any labor costs associated with the upgrade process will be communicated by our sales representative based on your individual contract and the scope of work.
A: While the service can still be used after the End of Life (EoL), patches, bug fixes, and technical support will not be provided. We strongly recommend to upgrade to an active LTS version, or to the latest Authlete version.
A: Patches are only applied to an LTS version if deemed necessary. For instance, if there needs to be a security update for Authlete 2.3.47, version 2.3.48 will be released, and both versions will be treated as LTS (Long-Term Support).
Regarding support policies, as stated above, we recommend updating from a security standpoint, but you should consider updating based on the necessity of the fixes.
A: There are no individual End-of-Life (EoL) dates set for each older patch. We will continue to accept inquiries during the 2.3 LTS availability period (until March 31, 2029), but new critical fixes will be included in the latest LTS patch. If you require fixes, please consider updating to the latest patch.
A: The SC environment has been updated to the LTS version, so no version upgrade is required on the part of the user company.
A: No. The version on the Shared Cloud will always be the latest version provided by Authlete.