diff --git a/README.md b/README.md
index 1b6f251..25dea91 100644
--- a/README.md
+++ b/README.md
@@ -7,9 +7,14 @@
 
 **Table of Contents**
 
+- [About](#about)
 - [Installation](#installation)
 - [License](#license)
 
+## About
+
+This is a [qupulse](https://github.com/qutech/qupulse) driver for Zurich Instrument's HDAWG which uses the pre-2022 firmware, i.e. version `20.7.2701`. This was the latest release with `playWaveIndexed`. The latest supported python version is sadly `3.8`. The driver for newer firmware versions is called [qupulse-hdawg](https://github.com/qutech/qupulse-hdawg).
+
 ## Installation
 
 ```console