Update CAR INSTALL.md

diff --git a/CAR INSTALL.md b/CAR INSTALL.md
index 15f4ab458675bb698462e61131a1306f249f2e9c..6c2f12bed810280480b198b1a538f1c463b1fe52 100644 (file)
--- a/CAR INSTALL.md
+++ b/CAR INSTALL.md
@@ -42,9 +42,8 @@ The first thing to do on a Pi would be to use the `raspi-config` tool to expand
 ```
 # apt update
 # apt upgrade
-# rpi-update
 ``` 
-**Note:** If you are following this guide but are using a full-size Rapsberry Pi with the built-in DAC, then, at this time of writing (September 2018) it is a good idea to update the Pi's firmware using `rpi-update` because a [significant improvement](https://github.com/raspberrypi/firmware/commit/200c2f4dd54b2048b5dcb8661ea3f232beb7d81e) has been made to the [timing software](https://github.com/raspberrypi/firmware/issues/1026) of the built-in audio DAC's drivers. It should be incorporated in firmware from Raspbian 4.14.66-v7 onwards.
+**Note:** If you are following this guide but are using a full-size Rapsberry Pi with the built-in DAC, then it is a good idea to update to the Raspian release of October 2018 or later, as a number of improvements have been made to the built-in DAC.
 
 (Separately, if you haven't done so already, consider using the `raspi-config` tool to expand the file system to use the entire card.)