Preparing voltha-2.7 release file

Change-Id: If691305f5b44f4ded0db96ce798fc6544e5e92cf
diff --git a/releases/voltha-2.7 b/releases/voltha-2.7
new file mode 100644
index 0000000..c5790d0
--- /dev/null
+++ b/releases/voltha-2.7
@@ -0,0 +1,25 @@
+# SPDX-FileCopyrightText: © 2020 kind-voltha contributors
+# SPDX-License-Identifier: Apache-2.0o
+#
+# Source this file before running ./voltha up to install the VOLTHA 2.6.0 release
+
+export VOLTHA_CHART_VERSION=2.8.3
+export VOLTHA_BBSIM_CHART_VERSION=4.2.0
+export VOLTHA_ADAPTER_OPEN_OLT_CHART_VERSION=2.8.6
+export VOLTHA_ADAPTER_OPEN_ONU_CHART_VERSION=2.7.13 # needs update once released
+export BBSIM_SADIS_SERVER_CHART_VERSION=0.1.1
+export ONOS_CLASSIC_CHART_VERSION=0.1.13
+export RADIUS_CHART_VERSION=1.0.2
+export VOLTCTL_VERSION=1.4.4
+export WITH_ONOS=classic
+export HELM_VERSION=v3.2.4
+export KIND_VERSION=v0.8.1
+
+# defaults.image_tag=null will use the image tags in the Helm charts rather than
+# kind-voltha's default which is 'master'.
+# Also we need to specify the tag for voltha/voltha-onos image since this is
+# not in the ONOS chart.
+export EXTRA_HELM_FLAGS="--set defaults.image_tag=null,images.onos.tag=master " # use the correct VOLTHA-ONOS image once merged
+
+# remove once the components have been released
+EXTRA_HELM_FLAGS+="--set images.adapter_open_onu_go.tag=master "