release: bigquery/v1.4.0

This PR will be tagged bigquery/v1.4.0.

Change-Id: I0744077aacf904fb04655e4d31a30acf1c372593
Reviewed-on: https://code-review.googlesource.com/c/gocloud/+/50830
Reviewed-by: Tyler Bui-Palsulich <tbp@google.com>
Reviewed-by: Alex Hong <hongalex@google.com>
Reviewed-by: kokoro <noreply+kokoro@google.com>
diff --git a/bigquery/CHANGES.md b/bigquery/CHANGES.md
index c4a797f..821269d 100644
--- a/bigquery/CHANGES.md
+++ b/bigquery/CHANGES.md
@@ -1,5 +1,11 @@
 # Changes
 
+## v1.4.0
+
+* Add v1beta2, v1alpha2 endpoints for bigquerystorage API.
+
+* Location is now reported as part of TableMetadata.
+
 ## v1.3.0
 
 * Add Description field for Routine entities.
diff --git a/internal/version/version.go b/internal/version/version.go
index 1c49664..baa242d 100644
--- a/internal/version/version.go
+++ b/internal/version/version.go
@@ -26,7 +26,7 @@
 
 // Repo is the current version of the client libraries in this
 // repo. It should be a date in YYYYMMDD format.
-const Repo = "20200122"
+const Repo = "20200123"
 
 // Go returns the Go runtime version. The returned string
 // has no whitespace.