diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index be8632d..81435b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ on: [push, pull_request, workflow_dispatch]
 
 env:
   IDE_VERSION: 1.8.19
-  TEENSY_VERSION: 160
+  TEENSY_VERSION: 161
   IDE_LOCATION: /usr/local/share/arduino
 
 jobs:
diff --git a/README.md b/README.md
index 6f5c9f6..32e0cfe 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ This is meant to be used in conjunction with the [ArduinoXInput library](https:/
 
 You must have both [the Arduino IDE](https://www.arduino.cc/en/main/software) and [Teensyduino](https://www.pjrc.com/teensy/td_download.html) installed before proceeding.
 
-Double-check that your installed Teensyduino version matches the files provided in this repository. This repository is currently using [**Teensyduino 1.60**](https://www.pjrc.com/teensy/td_160). You can download older versions on [the releases page](../../releases).
+Double-check that your installed Teensyduino version matches the files provided in this repository. This repository is currently using [**Teensyduino 1.61**](https://www.pjrc.com/teensy/td_161). You can download older versions on [the releases page](../../releases).
 
 If you don't know your Teensyduino version, compile a blank sketch with a Teensy board selected and the Teensy Loader will open. In the Teensy Loader window select `Help -> About` and it will tell you the version number. If your version does not match you will have to reinstall or update the Teensyduino software.
 
diff --git a/teensy/avr/boards.txt b/teensy/avr/boards.txt
index 4e044f0..bc05ca7 100644
--- a/teensy/avr/boards.txt
+++ b/teensy/avr/boards.txt
@@ -135,7 +135,12 @@ teensy41.menu.speed.600=600 MHz
 teensy41.menu.speed.528=528 MHz
 teensy41.menu.speed.450=450 MHz
 teensy41.menu.speed.396=396 MHz
+teensy41.menu.speed.240=240 MHz
+teensy41.menu.speed.180=180 MHz
 teensy41.menu.speed.150=150 MHz
+teensy41.menu.speed.120=120 MHz
+teensy41.menu.speed.90=90 MHz
+teensy41.menu.speed.60=60 MHz
 teensy41.menu.speed.24=24 MHz
 teensy41.menu.speed.720=720 MHz (overclock)
 teensy41.menu.speed.816=816 MHz (overclock)
@@ -151,7 +156,12 @@ teensy41.menu.speed.600.build.fcpu=600000000
 teensy41.menu.speed.528.build.fcpu=528000000
 teensy41.menu.speed.450.build.fcpu=450000000
 teensy41.menu.speed.396.build.fcpu=396000000
+teensy41.menu.speed.240.build.fcpu=240000000
+teensy41.menu.speed.180.build.fcpu=180000000
 teensy41.menu.speed.150.build.fcpu=150000000
+teensy41.menu.speed.120.build.fcpu=120000000
+teensy41.menu.speed.90.build.fcpu=90000000
+teensy41.menu.speed.60.build.fcpu=60000000
 teensy41.menu.speed.24.build.fcpu=24000000
 
 teensy41.menu.opt.o2std=Faster
@@ -365,7 +375,12 @@ teensyMM.menu.speed.600=600 MHz
 teensyMM.menu.speed.528=528 MHz
 teensyMM.menu.speed.450=450 MHz
 teensyMM.menu.speed.396=396 MHz
+teensyMM.menu.speed.240=240 MHz
+teensyMM.menu.speed.180=180 MHz
 teensyMM.menu.speed.150=150 MHz
+teensyMM.menu.speed.120=120 MHz
+teensyMM.menu.speed.90=90 MHz
+teensyMM.menu.speed.60=60 MHz
 teensyMM.menu.speed.24=24 MHz
 teensyMM.menu.speed.720=720 MHz (overclock)
 teensyMM.menu.speed.816=816 MHz (overclock)
@@ -381,7 +396,12 @@ teensyMM.menu.speed.600.build.fcpu=600000000
 teensyMM.menu.speed.528.build.fcpu=528000000
 teensyMM.menu.speed.450.build.fcpu=450000000
 teensyMM.menu.speed.396.build.fcpu=396000000
+teensyMM.menu.speed.240.build.fcpu=240000000
+teensyMM.menu.speed.180.build.fcpu=180000000
 teensyMM.menu.speed.150.build.fcpu=150000000
+teensyMM.menu.speed.120.build.fcpu=120000000
+teensyMM.menu.speed.90.build.fcpu=90000000
+teensyMM.menu.speed.60.build.fcpu=60000000
 teensyMM.menu.speed.24.build.fcpu=24000000
 
 teensyMM.menu.opt.o2std=Faster
@@ -595,7 +615,12 @@ teensy40.menu.speed.600=600 MHz
 teensy40.menu.speed.528=528 MHz
 teensy40.menu.speed.450=450 MHz
 teensy40.menu.speed.396=396 MHz
+teensy40.menu.speed.240=240 MHz
+teensy40.menu.speed.180=180 MHz
 teensy40.menu.speed.150=150 MHz
+teensy40.menu.speed.120=120 MHz
+teensy40.menu.speed.90=90 MHz
+teensy40.menu.speed.60=60 MHz
 teensy40.menu.speed.24=24 MHz
 teensy40.menu.speed.720=720 MHz (overclock)
 teensy40.menu.speed.816=816 MHz (overclock)
@@ -611,7 +636,12 @@ teensy40.menu.speed.600.build.fcpu=600000000
 teensy40.menu.speed.528.build.fcpu=528000000
 teensy40.menu.speed.450.build.fcpu=450000000
 teensy40.menu.speed.396.build.fcpu=396000000
+teensy40.menu.speed.240.build.fcpu=240000000
+teensy40.menu.speed.180.build.fcpu=180000000
 teensy40.menu.speed.150.build.fcpu=150000000
+teensy40.menu.speed.120.build.fcpu=120000000
+teensy40.menu.speed.90.build.fcpu=90000000
+teensy40.menu.speed.60.build.fcpu=60000000
 teensy40.menu.speed.24.build.fcpu=24000000
 
 teensy40.menu.opt.o2std=Faster