bigquery: release bigquery/v1.9.0 (#2533)

This PR will be tagged bigquery/v1.9.0
diff --git a/bigquery/CHANGES.md b/bigquery/CHANGES.md
index 34d43c8..a7949b8 100644
--- a/bigquery/CHANGES.md
+++ b/bigquery/CHANGES.md
@@ -1,6 +1,12 @@
 # Changes
 
 
+## v1.9.0
+
+* SchemaFromJSON will now accept alias type names (e.g. INT64 vs INTEGER, STRUCT vs RECORD).
+* Support for IAM on table resources.
+* Various updates to autogenerated clients.
+
 ## v1.8.0
 
 * Add support for hourly time partitioning.
diff --git a/internal/version/version.go b/internal/version/version.go
index 7664a1e..7f1f85f 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 = "20200618"
+const Repo = "20200629"
 
 // Go returns the Go runtime version. The returned string
 // has no whitespace.