> ## Documentation Index
> Fetch the complete documentation index at: https://developers.authlete.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Authlete 2.3 Release Notes - September 2025

##### Version Number : 2.3.39

# Overview

This minor update introduces changes for Authlete 2.3.
This new version was made available on October 2nd (Thu).

# New Features & Improvements

## Memory cache password variable update

Updated the `memory.cache.password` variable to make it available for users to configure.

# Specs support

N/A

# Bug fixes

## PKCE code challenge method fix

Fixed an issue where `code_challenge_methods_supported` would be returned as a string instead of a JSON array when `isPkceS256Required` is set to `true`.

* This change was made in order to respect the behavior mandated by [RFC 8414](https://datatracker.ietf.org/doc/html/rfc8414#section-2)

# Other

N/A