diff --git a/CMakeLists.txt b/CMakeLists.txt
index 25068c1..6faa786 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,13 +1,13 @@
 cmake_minimum_required(VERSION 3.16.0)
 project(pipedal 
-    VERSION 1.4.85
+    VERSION 1.4.86
     DESCRIPTION "PiPedal Guitar Effect Pedal For Raspberry Pi"
     HOMEPAGE_URL "https://rerdavies.github.io/pipedal"
 )
 
 EXECUTE_PROCESS( COMMAND dpkg --print-architecture COMMAND tr -d '\n' OUTPUT_VARIABLE DEBIAN_ARCHITECTURE )
 
-set (DISPLAY_VERSION "PiPedal v1.4.85-Experimental")
+set (DISPLAY_VERSION "PiPedal v1.4.86-Experimental")
 set (PACKAGE_ARCHITECTURE ${DEBIAN_ARCHITECTURE})
 set (CMAKE_INSTALL_PREFIX "/usr/")
 
diff --git a/README.md b/README.md
index 133a1fe..f0305c1 100644
--- a/README.md
+++ b/README.md
@@ -9,11 +9,11 @@
 <img src="https://img.shields.io/github/downloads/rerdavies/pipedal/total?color=%23808080&link=https%3A%2F%2Frerdavies.github.io%2Fpipedal%2Fdownload.html"/>
 
 
-Download:&nbsp;<a href='https://rerdavies.github.io/pipedal/download.html'>v1.4.85</a> 
+Download:&nbsp;<a href='https://rerdavies.github.io/pipedal/download.html'>v1.4.86</a> 
 Website:&nbsp;[https://rerdavies.github.io/pipedal](https://rerdavies.github.io/pipedal).
 Documentation:&nbsp;[https://rerdavies.github.io/pipedal/Documentation.html](https://rerdavies.github.io/pipedal/Documentation.html).
 
-#### NEW version 1.4.85 Release. See the [release notes](https://rerdavies.github.io/pipedal/ReleaseNotes) for details. New Phaser and Graphic Equalizer plugins.
+#### NEW version 1.4.86 Release. See the [release notes](https://rerdavies.github.io/pipedal/ReleaseNotes) for details. New Phaser and Graphic Equalizer plugins.
 
 &nbsp;
 
diff --git a/docs/Installing.md b/docs/Installing.md
index 7184b0f..955c485 100644
--- a/docs/Installing.md
+++ b/docs/Installing.md
@@ -13,18 +13,18 @@ page_icon: img/Install4.jpg
 
 Download the most recent Debian (.deb) package for your platform:
 
-- [Raspberry Pi OS bookworm (aarch64) v1.4.85](https://github.com/rerdavies/pipedal/releases/download/v1.4.85/pipedal_1.4.85_arm64.deb)
-- [Ubuntu 24.x (aarch64) v1.4.85](https://github.com/rerdavies/pipedal/releases/download/v1.4.85/pipedal_1.4.85_arm64.deb)
-- [Ubuntu 24.x (amd64) v1.4.85](https://github.com/rerdavies/pipedal/releases/download/v1.4.85/pipedal_1.4.85_amd64.deb)
+- [Raspberry Pi OS bookworm (aarch64) v1.4.86](https://github.com/rerdavies/pipedal/releases/download/v1.4.86/pipedal_1.4.86_arm64.deb)
+- [Ubuntu 24.x (aarch64) v1.4.86](https://github.com/rerdavies/pipedal/releases/download/v1.4.86/pipedal_1.4.86_arm64.deb)
+- [Ubuntu 24.x (amd64) v1.4.86](https://github.com/rerdavies/pipedal/releases/download/v1.4.86/pipedal_1.4.86_amd64.deb)
 
 
-Version 1.4.85 has been tested on Raspberry Pi OS bookworm, Ubuntu 24.04 (amd64), and Ubuntu 24.10 (aarch64). Download the appropriate package for your platform, and install using the following procedure:
+Version 1.4.86 has been tested on Raspberry Pi OS bookworm, Ubuntu 24.04 (amd64), and Ubuntu 24.10 (aarch64). Download the appropriate package for your platform, and install using the following procedure:
 
 ```
   sudo apt update
   sudo apt upgrade
   cd ~/Downloads  
-  sudo apt-get install ./pipedal_1.4.85_arm64.deb 
+  sudo apt-get install ./pipedal_1.4.86_arm64.deb 
 ```
 You MUST use `apt-get`. `apt` will not install downloaded packages; and `dpkg -i` will not install dependencies. 
 
diff --git a/docs/ReleaseNotes.md b/docs/ReleaseNotes.md
index 791e5b0..a18618f 100644
--- a/docs/ReleaseNotes.md
+++ b/docs/ReleaseNotes.md
@@ -1,8 +1,13 @@
 # Release Notes
-## Pipedal 1.4.79 Experimental
+## PiPedal 1.4.86 Beta
+The Big Feature: 
+- Code optimizations for Raspberry Pi 5 (Cortex-A76), providing a potential 2x performance improvement for TooB Neural Amp Modeler.
+- New "Threaded" button optionally executes TooB NAM computation on a separate thread. Allows up to 5 NAM instances on Pi 4, and practically unlimited NAM instances on Pi 5.
+- TooB Neural Amp Modeler: Switch to the NeuralAudio NAM Backend
 Bug fixes:
-- Thread-per-plugin-instance for LV2_WORKER threads (see issue #339)
-- Fixes for selection issues when modifying pedalboard structure.
+- Compatibility with plugins expecting certain MOD host features.
+- Improvements to recovery from audio underruns and overruns.
+- Fixes for loss of currently selected plugin when modifying pedalboard structure.
 
 ## Pipedal 1.4.79 Beta
 
diff --git a/docs/download.md b/docs/download.md
index 76088bd..372c013 100644
--- a/docs/download.md
+++ b/docs/download.md
@@ -4,9 +4,9 @@
 
 Download the most recent Debian (.deb) package for your platform:
 
-- [Raspberry Pi OS bookworm (aarch64) v1.4.85 Beta](https://github.com/rerdavies/pipedal/releases/download/v1.4.85/pipedal_1.4.85_arm64.deb)
-- [Ubuntu 24.x (aarch64) v1.4.85 Alpha](https://github.com/rerdavies/pipedal/releases/download/v1.4.85/pipedal_1.4.85_arm64.deb)
-- [Ubuntu 24.x (amd64) v1.4.85 Alpha](https://github.com/rerdavies/pipedal/releases/download/v1.4.85/pipedal_1.4.85_amd64.deb)
+- [Raspberry Pi OS bookworm (aarch64) v1.4.86 Beta](https://github.com/rerdavies/pipedal/releases/download/v1.4.86/pipedal_1.4.86_arm64.deb)
+- [Ubuntu 24.x (aarch64) v1.4.86 Alpha](https://github.com/rerdavies/pipedal/releases/download/v1.4.86/pipedal_1.4.86_arm64.deb)
+- [Ubuntu 24.x (amd64) v1.4.86 Alpha](https://github.com/rerdavies/pipedal/releases/download/v1.4.86/pipedal_1.4.86_amd64.deb)
 
 
 Install the package by running 
@@ -14,7 +14,7 @@ Install the package by running
 ```
   sudo apt update
   cd ~/Downloads  
-  sudo apt-get install ./pipedal_1.4.85_arm64.deb
+  sudo apt-get install ./pipedal_1.4.86_arm64.deb
 ```
 You MUST use `apt-get` to install the package. `apt install` will NOT install the package correctly. The message about missing permissions given by `apt-get` is
 expected, and can be safely ignored.