chore: release datastore 1.4.0 (#3421)
diff --git a/datastore/CHANGES.md b/datastore/CHANGES.md
index 61b9812..caf8d93 100644
--- a/datastore/CHANGES.md
+++ b/datastore/CHANGES.md
@@ -1,5 +1,20 @@
# Changes
+## [1.4.0](https://www.github.com/googleapis/google-cloud-go/compare/datastore/v1.3.0...v1.4.0) (2021-01-15)
+
+
+### Features
+
+* **datastore:** add opencensus tracing/stats support ([#2804](https://www.github.com/googleapis/google-cloud-go/issues/2804)) ([5e6c350](https://www.github.com/googleapis/google-cloud-go/commit/5e6c350b2ac94787934380e930af2cb2094fa8f1))
+* **datastore:** support civil package types save ([#3202](https://www.github.com/googleapis/google-cloud-go/issues/3202)) ([9cc1a66](https://www.github.com/googleapis/google-cloud-go/commit/9cc1a66e22ecd8dcad1235c290f05b92edff5aa0))
+
+
+### Bug Fixes
+
+* **datastore:** Ensure the datastore time is returned as UTC ([#3521](https://www.github.com/googleapis/google-cloud-go/issues/3521)) ([0e659e2](https://www.github.com/googleapis/google-cloud-go/commit/0e659e28da503b9520c83eb136df6e54d6c6daf7))
+* **datastore:** increase deferred key iter limit ([#2878](https://www.github.com/googleapis/google-cloud-go/issues/2878)) ([7f1057a](https://www.github.com/googleapis/google-cloud-go/commit/7f1057a30d3b8691a22c85255bb41d31d42c6f9c))
+* **datastore:** loading civil types in non UTC location is incorrect ([#3376](https://www.github.com/googleapis/google-cloud-go/issues/3376)) ([9ac287d](https://www.github.com/googleapis/google-cloud-go/commit/9ac287d2abfb6bdcdceabb67fa0d93fb7b0dd863))
+
## v1.3.0
- Fix saving behavior for non-struct custom types which implement
`PropertyLoadSaver` and for nil interface types.
