---
title: "Version 4.3"
slug: "epic-auth-plugin-release-notes-43x"
description: "Authentication plugin for Epic Hyperdrive, versions 4.1.5.Release includes bug fixes and the ability to run the Client Registration Tool using command line parameters."
tags: ["Hyperdrive", "Release Notes", "Exact Access", "Administrator", "EPIC", "EpicAuth", "Getting Started", "ProxCard"]
updated: 2026-03-04T15:53:55Z
published: 2026-03-04T15:53:55Z
canonical: "healthcare.rapididentity.com/epic-auth-plugin-release-notes-43x"
---

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

# Version 4.3

These release notes contain a comprehensive list for the Epic Authentication Plugin for Hyperdrive version 4.3.x.

## Version 4.3.6.1

#### Issue Resolved

**HEALTH-1414**

- Hyperdrive crashes during EPCS workflow - unloaded module problem

**Additional Information** HEALTH-1414 resolves an issue that was encountered when customers were using Identity Automation for authentication into Epic, but using a separate EPCS solution. In some cases, a combination of interaction between these components would crash the Epic software.

---

## Version 4.3.5.3

#### Issue Resolved

**HEALTH-1342**

- This fixes an issue where the XA Client hangs on login if Hyperspace is started before the XA Client.

#### Additional Information

HEALTH-1342 introduces and displays the following error message if the `LaunchType` registry value is `0`: "Registry setting 'SOFTWARE\HealthCast\eXactACCESS\TFA Settings\LaunchType' is not configured!"

**Registry Path**

```
[HKEY_LOCAL_MACHINE\SOFTWARE\HealthCast\eXactACCESS\TFA Settings]
```

**Registry Value** "LaunchType"=dword:00000000

#### Trace-Level Logging Support

Version 4.3.5.3 added trace-level logging support. Highly repeated calls will not be logged unless the `TraceLevel` is set to 4 in the registry.

**Registry Path**

```
[HKEY_LOCAL_MACHINE\SOFTWARE\HealthCast\vcState]
```

**Registry Values** "EnableDebug"=dword:00000001 "TraceLevel"=dword:00000004

---

## Version 4.3.4.1

#### Issue Resolved

**HEALTH-1309**

- EpicAuth incorrectly evaluating Epic session is locked after failed secondary authentication

---

## Version 4.3.3.1

#### Issue Resolved

**HEALTH-1297**

- Current XA user gets logged in if another user fails to login using username and password

---

## Version 4.3.2.2

#### Issues Resolved

**HEALTH-1062**

- Update xalogoffcleanup.exe in EpicAuth

**HEALTH-1147**

- Allow multiple client registration using interconnect - merge from 4.2.6.1 changes

---

## Version 4.3.1.1

#### Issue Resolved

**HEALTH-932**

- EPCS not responding during audit stage

⚠️ Version Compatibility

If using [EPCS v3.0.3.2](/v1/docs/epcs-303) or above then Epic Auth 4.3.1.1 or above should be used.

---

## Version 4.3.0.1

#### Issue Resolved

- HEALTH-938 Add SAML support to EpicAuth IA.Hyperdrive.ProxCardPassive authentication device