Introduction

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.

What is LTS?

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.

Supported Versions

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.

Checking Your Current Version

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.

Call the /api/info endpoint

The 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.

Contact Authlete Support

If the methods above are not convenient, please contact Authlete Support and we will look up the version of your environment for you.

Supported Period

LTS versions will be supported for a period of 3 years.

Available Updates

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.

1. Security Patches → Addressing vulnerabilities that may impact the integrity, confidentiality, or availability of the product
2. Critical Bug Fixes → Resolving bugs that significantly affect the product’s core functionality or cause severe issues in production environments
3. Stability Updates → Fixing major performance or compatibility issues without introducing new features

⚠️ 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.

EoL Policy

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.

ℹ️ Going forward, all new non-LTS versions of Authlete will be supported for 6 months.

Upgrade Schedule

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.

Version Deprecation & Communication

Authlete is committed to giving customers sufficient advance notice before any version reaches End of Life:

• Minimum 6 months notice before an LTS version reaches EoL
• Minimum 3 months notice before a non-LTS version reaches EoL
• Notifications will be delivered via email to account administrators, in-product banners within the Authlete console, and announcements on the Authlete changelog and website
• Versions approaching or past their EoL date will display a visible deprecation notice within the product UI, recommending to upgrade

Disclaimer

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.