---
title: "Glimmer Agent Release (2.16.3)"
slug: "glimmer-agent-release-2163"
updated: 2025-07-16T15:40:40Z
published: 2025-07-16T15:40:40Z
---

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

# Glimmer Agent Release (2.16.3)

**Released: July 10, 2025**

**Enterprise Version: 2.16.3.939** **Endpoint Version: 5.0.0.1493**

## Platforms Tested

- RHEL 7.9
- RHEL 8.10
- Oracle Linux 8.10
- Rocky Linux 8.10
- RHEL 9.6
- Ubuntu 22.04
- Ubuntu 24.04
- Amazon Linux 2

## New features

- **Endpoint**
  - Agent will use npcap's silent install option, allowing Endpoint to run a full silent installation of the call quality monitoring functionality.
  - Reenable auto-update functionality for Mac
- **DNS Experience**
  - Support for HTTPS & SVCB Record Types
- **Playwright/Puppeteer (not supported on RHEL7 / Amazon Linux 2)**
  - Kerberos authentication is now supported.
  - Show POST data in headers
  - Added support for basic Javascript built-in functions.
  - Support natively recorded Playwright scripts
  - Add results caching to improve performance for large transaction tests
  - Truncate step name to 64 characters
- **HTTP Object**
  - Add new error codes for Kerberos authentication
- **Agent**
  - Kerberos support for Catchpoint proxy
  - Ubuntu 24 support

## Bug fixes

- **Playwright/Puppeteer (not supported on RHEL7 / Amazon Linux 2)**
  - Data gaps observed in test runs
  - Blocked requests showing up in waterfall
  - Client certificate error with SSO
  - Wire requests only captured on step 1 for SPA
- **Endpoint**
  - Mac Installation Error
- **Chrome Transaction**
  - File upload not working
- **DNS Experience**
  - Timeout errors on IPv6 Nodes
  - Prioritize IPv6 over IPv4 for DNS resolution