---
title: "PDM II Release Notes"
slug: "pdm-ii-release-notes"
updated: 2025-06-05T19:33:33Z
published: 2025-06-05T19:33:33Z
canonical: "docs.telosalliance.com/pdm-ii-release-notes"
---

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

# PDM II Release Notes

PDM II was released to Production August 9, 2021

## Version 2.0.0

Release date June 4, 2025 via ECO #3161

[Download Version 2.0.0](https://telos-support.s3.us-east-1.amazonaws.com/25-Seven/PDMII/1601-00586-004-pdmii-2.0.0.epkg)

### Introduction

This is a major new version of the PDM II firmware, replacing version 1.0.0 and other release candidates.

### New features

- GPIO inputs are now debounced
- Web UI
  - Now uses a dark background
  - Most LCD-only configuration items are now available on webUI (web password, time zone, format, sound I/O configuration)
  - Can now set the hostname
  - Can use ports other than port 5004 in AES67 mode
  - Can now set AoIP packet size
- The default Delayed Data buffer size is changed from 100kB to 1MB; if installed on a system with the old default, updates to 1MB

### Bugs fixed

- Web UI
  - On delayed data stream A, "Remote TCP" and "Local UDP" swapped
  - AES67 transmit address labeled "Receive Address"
- Bypass relay not disengaged if boot mode set to "BUILD"
- If the unit time was way off, SupportLink "Test Connection" would fail
- If the unit time was way off, PD Alert showed "no valid TLS certificate."
- Front panel confidence meters didn't work when in bypass
- If NTP fetch failed, the status display was wrong
- Numeric digits in the hostname were mis-handled

### Tickets addressed

The above items correspond to the following internal ticket numbers: 16272, 16395, 16407, 16692, 16693, 16941, 17583, 17591, 18774, 19077, 19239, 19339, 19479, 19564, 19645, 19909, 20031, 20058, 20087, 20284, 20435, 20436, 20506, 20516, 20518, 20519, 20520, 20543, 20584, 21429, 21920, 22167, 22846, 22847, 22921, 22922, 22924, 22925, 23094, 23102, 23235, 23241, 23337, 24168, 24566

---

### Version 1.0.0-rc2

Release date December 1,2021

> Initial release to manufacturing, never released as a public update

---

## Version 1.0.0

Release Date March 10, 2022 Via ECO # 2722

[Download version 1.0.0](https://telos-support.s3.us-east-1.amazonaws.com/25-Seven/PDMII/1601-00586-003-pdmii-1.0.0.epkg)

### External changes

- Minimum latency changed from 150ms to 175ms
- Web UI now properly shows bank information
- Web UI copyright changed from 2021 to 2022
- TelosConnect email form removed
- Other web UI tweaks

### Other changes and improvements

- Logging tweaks
- Output buffer bumped from 20ms to 40ms
- Added /bank0/boot_version.txt to log packages
- TelosConnect communications cleaned up
- Internal Documentation