---
title: "Server Hotfix 4 Release Notes"
slug: "server-hotfix-4-release-notes"
tags: ["MFA Hotfix", "Push Notifications", "PingMe", "MFA Server", "Apple"]
updated: 2026-04-22T14:11:14Z
published: 2026-04-22T14:11:14Z
canonical: "mfa.rapididentity.com/server-hotfix-4-release-notes"
---

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

# Server Hotfix 4 Release Notes

This hotfix is for the MFA and EPCS PingMe server experiencing issues with end users not receiving pings to their enrolled mobile devices.

⚠️ MFA Server Hotfix 4 must be installed on **all** RapidIdentity MFA/EPCS PingMe servers in the environment.

## Pre-Requisites

- Your MFA Server must be on [v4.9.8.1](/v1/docs/4981-server-release-notes). If your MFA server version is behind, you will be required to upgrade first. For questions about the upgrade process, please see our [server upgrade information page](/v1/docs/mfa-server-upgrade-information) for more information.
- MFA Server 4.9.8.1 Hotfix 3 must be installed.

---

## Downloads

[MFA Server 4.9.8.1 Hotfix 3](https://idauto.s3.us-east-1.amazonaws.com/mfa/server/4981/hotfix/RapidIdentity_Server_4981_H3.zip)

[MFA Server 4.9.8.1 Hotfix 4](https://idauto.s3.us-east-1.amazonaws.com/mfa/server/4981/hotfix/RapidIdentity_Server_4.9.8.1_H4_663.EXE)

---

## Key Fix

TWOFA-663

- This hotfix restores push notifications on iOS by migrating away  

from the deprecated APNs binary interface to Apple’s HTTP/2 API. The Push  

Notification components now authenticate with APNs using JSON Web Token  

(JWT)–based authentication (ES256), per Apple’s current recommendations.

---

## Steps To Install

1. On a server with 4.9.8.1 MFA Server installed, download the hotfix and save it to your server.
2. Unblock the hotfix executable by right-clicking > *Properties* > *General* tab.
3. Run the executable as an Administrator.
4. After the executable is run, the hotfix will be applied.

**A restart is not required.*

---

## Steps To Uninstall

1. Open the “%ProgramData%\RapidIdentity_Server_4.9.8.1_H4_663” folder.
2. Rename “uninst.txt” to “uninst.bat.”
3. Run **uninst.bat** as an administrator.
4. Manually delete the “RapidIdentity_Server_4.9.8.1_H4_663” folder.
5. After deleting the folder, the hotfix will be uninstalled.

**A restart is not required.*