chore(bigtable): release bigtable/v1.6.0 (#2845)

diff --git a/bigtable/CHANGES.md b/bigtable/CHANGES.md
index 267a646..344cf2f 100644
--- a/bigtable/CHANGES.md
+++ b/bigtable/CHANGES.md
@@ -1,5 +1,12 @@
 # Changes
 
+## v1.6.0
+- Add support partial results in InstanceAdminClient.Instances. In the case of
+  partial availability, available instances will be returned along with an
+  ErrPartiallyUnavailable error.
+- Add support for label filters.
+- Fix max valid timestamp in the emulator to allow reversed timestamp support.
+
 ## v1.5.0
 - Add support for managed backups.
 
diff --git a/internal/version/version.go b/internal/version/version.go
index 6ebdb54..3774b76 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 = "20200909"
+const Repo = "20200911"
 
 // Go returns the Go runtime version. The returned string
 // has no whitespace.