diff --git a/README.md b/README.md
index a6aa4501..b71d86d8 100644
--- a/README.md
+++ b/README.md
@@ -5,16 +5,19 @@ This tool takes a set of packages, and commits them to an
 [OSTree](https://wiki.gnome.org/Projects/OSTree) repository.  At the
 moment, it is intended for use on build servers.
 
-Using rpm-ostree
-----------------
+Major changes since 2014.8
+--------------------------
 
-There are two levels; the core "rpm-ostree" command takes a set of
-packages and commits them to an OSTree repository.
+The previous major release of this program contained within it an
+"autobuilder" codebase which had significant functionality beyond just
+composing trees, such as creating VM disk images and running
+smoketests.
 
-The higher level rpm-ostree-autobuilder parses a "products.json" which
-generates potentially many filesystem trees.  It also has code to
-generate disk images and run smoketests.
+Since that time, the other functionality has moved to:
+https://github.com/cgwalters/rpm-ostree-autocompose
 
+This program now only commits trees to a repository, using "treefiles"
+which are very simple JSON input data.
 
 Installing and setting up a repository
 --------------------------------------
@@ -51,12 +54,11 @@ Once you have that done, choose a build directory.  Here we'll use
 	# mkdir repo
 	# ostree --repo=repo init --mode=archive-z2
 
-
 Running rpm-ostree
 ------------------
 
-The core "rpm-ostree" takes as input a "treefile".  There is a demo
-one in `doc/demo-treefile.json`.
+The core "rpm-ostree" takes as input a "treefile".  See examples in
+`doc/treefile-examples`.
 
 	# rpm-ostree treecompose --repo=/srv/rpm-ostree/repo --proxy=http://127.0.0.1:8123 sometreefile.json
 
@@ -67,17 +69,3 @@ this case) - otherwise we you will download the packages for each
 treecompose.
 
 You can export `/srv/rpm-ostree/repo` via any static webserver.
-
-Running the autobuilder
------------------------
-
-The autobuilder instead takes as input a `products.json` which
-generates *multiple* treefile internally.  Try this:
-
-	# ln -s /path/to/rpm-ostree.git/fedostree/products.json .
-	# rpm-ostree-autobuilder
-
-That will automatically poll every hour for changes in the RPMs
-referenced by the `products.json` file, commit them to the
-`/srv/rpm-ostree/repo`, and generate cached disk images in
-`/srv/rpm-ostree/images`.