---
title: Access Server 2.5 Release Notes and Version Updates
canonical: https://openvpn.net/as-docs/as-2-5-release-notes/
product: Access Server Docs
---

# Access Server 2.5 Release Notes and Version Updates

## Access Server 2.5.2

> **Note**
>
> **Release date:** **May 8, 2018**

- A problem with VRRP/UCARP LAN-based failover mode in version 2.5 that affected some configurations was resolved.
- Made switching off that type of failover mode easier and better, solving some problems with disabling it.
- Updated OpenVPN Connect Client for Windows version 2.5.0.100 to version 2.5.0.136.
- Updated OpenVPN Connect Client for mac OS version 2.5.0.112 to version 2.5.0.136.
- OpenVPN Connect Client mbedTLS incompatibility with PKI created by OpenSSL 1.1 fixed.
- OpenVPN Connect Client support for ECDSA added.
- Library mbedTLS in OpenVPN Connect Client updated to resolve CVE-2018-0487 vulnerability.
- Problem with excessively long server DNS host name that caused ‘no VPN servers’ message is resolved.
- Issue with TLS key refresh causing a connection failure and reconnect in OpenVPN Connect Client is fixed.
- Fixed and improved client version and platform reporting to server in OpenVPN Connect Client.
- Fixed launch issue on some older Windows platforms when MS Visual C++ redistributable was not present.

## Access Server 2.5.0

> **Note**
>
> **Release date:** **Feb 1, 2018**

- Implemented an updated engine for rendering the admin web interface, improved the look, and paved the way for modernizing the web interface.
- The client web interface now defaults to letting users download the required software to their computers instead of using the connect UI by default.
- The connect UI is now considered to be deprecated and to be removed and replaced with a better solution in future releases.
- New OpenVPN Connect Client releases are included in this Access Server release.
- OpenVPN Connect Client for macOS is now properly signed and the issue that existed in the past that prevented this has been resolved.
- OpenVPN Connect Client for Windows now no longer suffers from the unwanted 0.0.0.0/0 default route that Windows added when registering the connection.
- OpenVPN Connect Client for Windows now supports multiple DNS Resolution Zones on Windows client platforms that support NRPT.
- For new installations, AES-256-CBC is now the new default encryption cipher for VPN tunnel data. Existing installations that are upgraded retain their old cipher.
- SSLv2 and SSLv3 support, hidden and deprecated as it was, is now completely removed. Web service defaults to TLS 1.1 now.
- Additional activation servers added for Amazon AWS tiered instances, this allows for tighter security settings on security groups while retaining activation status.
- Library for mbed TLS is now updated to version 2.6.
- OpenVPN 2.4 code now merged into Access Server.

---

Prev: [Access Server 2.6](https://openvpn.net/as-docs/as-2-6-release-notes.md)
Next: [Access Server 2.1](https://openvpn.net/as-docs/as-2-1-release-notes.md)
Index: https://openvpn.net/as-docs/llms.txt