diff --git a/INSTALL.in b/INSTALL.in
index 526e7b3b66..ab963d8862 100644
--- a/INSTALL.in
+++ b/INSTALL.in
@@ -4,14 +4,15 @@ Installation instructions for GIMP @GIMP_APP_VERSION@
 
 There are some basic steps to building and installing GIMP.
 
-GIMP @GIMP_APP_VERSION@ replaces earlier GIMP 2.10.x versions. It is advised to
-uninstall them before installing GIMP @GIMP_APP_VERSION@. Since libgimp* libraries
-and data are all versioned anyway, it is possible to keep your older
-GIMP 2.x installation in parallel to GIMP @GIMP_APP_VERSION@ on a same prefix.
+GIMP @GIMP_APP_VERSION@ replaces earlier GIMP versions. It is advised to uninstall
+them before installing GIMP @GIMP_APP_VERSION@. Since libgimp* libraries and data
+are all versioned anyway, it is possible to keep your older GIMP 2.x
+or 3.x installations in parallel to GIMP @GIMP_APP_VERSION@ on a same prefix.
 
 GIMP @GIMP_APP_VERSION@ is not backward compatible with GIMP 2.10 and earlier
 versions. Plug-ins and scripts written for GIMP 2.10, 2.8, 2.6 or
-earlier GIMP 2.x versions will not work because the API changed.
+earlier GIMP 2.x versions will not work because the API changed in
+GIMP 3.0.
 
 The most important part is to make sure the requirements for a build
 are fulfilled. We depend on a number of tools and libraries which are