diff --git a/CHANGES.md b/CHANGES.md
index edc9d367..42b700dd 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -5,6 +5,9 @@ Notable changes between releases.
 ## Latest
 
 * Add gRPC API endpoints for managing generic (experimental) templates
+* Update Container Linux config transpiler to v0.5.0
+* Update Ignition to v0.19.0, render v2.1.0 Ignition configs
+* Drop support for Container Linux versions below 1465.0.0 (breaking)
 * Remove Profile `Cmdline` map (deprecated in v0.5.0), use `Args` slice instead
 * Remove pixiecore support (deprecated in v0.5.0)
 * Remove `ContextHandler`, `ContextHandlerFunc`, and `NewHandler` from the `matchbox/http` package.
diff --git a/matchbox/http/ignition_test.go b/matchbox/http/ignition_test.go
index c28a5078..5bd6004a 100644
--- a/matchbox/http/ignition_test.go
+++ b/matchbox/http/ignition_test.go
@@ -15,7 +15,7 @@ import (
 )
 
 func TestIgnitionHandler_V2JSON(t *testing.T) {
-	content := `{"ignition":{"version":"2.0.0","config":{}},"storage":{},"systemd":{"units":[{"name":"etcd2.service","enable":true}]},"networkd":{},"passwd":{}}`
+	content := `{"ignition":{"version":"2.1.0","config":{}},"storage":{},"systemd":{"units":[{"name":"etcd2.service","enable":true}]},"networkd":{},"passwd":{}}`
 	profile := &storagepb.Profile{
 		Id:         fake.Group.Profile,
 		IgnitionId: "file.ign",
@@ -52,7 +52,7 @@ systemd:
       enable: true
       contents: {{.request.raw_query}}
 `
-	expectedIgnitionV2 := `{"ignition":{"version":"2.0.0","config":{}},"storage":{},"systemd":{"units":[{"name":"etcd2.service","enable":true},{"name":"a1b2c3d4.service","enable":true},{"name":"some-param.service","enable":true,"contents":"foo=some-param\u0026bar=b"}]},"networkd":{},"passwd":{}}`
+	expectedIgnitionV2 := `{"ignition":{"config":{},"timeouts":{},"version":"2.1.0"},"networkd":{},"passwd":{},"storage":{},"systemd":{"units":[{"enable":true,"name":"etcd2.service"},{"enable":true,"name":"a1b2c3d4.service"},{"contents":"foo=some-param\u0026bar=b","enable":true,"name":"some-param.service"}]}}`
 	store := &fake.FixedStore{
 		Profiles:        map[string]*storagepb.Profile{fake.Group.Profile: testProfileIgnitionYAML},
 		IgnitionConfigs: map[string]string{testProfileIgnitionYAML.IgnitionId: content},