Version bump to v1.9.0-beta.1

Makefile

@@ -14,9 +14,9 @@
 
 # Bump these on release - and please check ISO_VERSION for correctness.
 VERSION_MAJOR ?= 1
-VERSION_MINOR ?= 8
-VERSION_BUILD ?= 2
-RAW_VERSION=$(VERSION_MAJOR).$(VERSION_MINOR).${VERSION_BUILD}
+VERSION_MINOR ?= 9
+VERSION_BUILD ?= 0-beta.1
+RAW_VERSION=$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_BUILD)
 VERSION ?= v$(RAW_VERSION)
 
 KUBERNETES_VERSION ?= $(shell egrep "DefaultKubernetesVersion =" pkg/minikube/constants/constants.go | cut -d \" -f2)
@@ -25,7 +25,7 @@ PRELOADED_TARBALL_VERSION ?= $(shell egrep "PreloadVersion =" pkg/minikube/downl
 PRELOADED_VOLUMES_GCS_BUCKET ?= $(shell egrep "PreloadBucket =" pkg/minikube/download/preload.go | cut -d \" -f2)
 
 # Default to .0 for higher cache hit rates, as build increments typically don't require new ISO versions
-ISO_VERSION ?= v$(VERSION_MAJOR).$(VERSION_MINOR).0
+ISO_VERSION ?= v$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_BUILD)
 # Dashes are valid in semver, but not Linux packaging. Use ~ to delimit alpha/beta
 DEB_VERSION ?= $(subst -,~,$(RAW_VERSION))
 RPM_VERSION ?= $(DEB_VERSION)