Release google-api-core 1.1.0 (#5029)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1f120a..f69f8b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,16 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
+## 1.1.0
+
+### Interface additions
+
+- Add `datetime_helpers.DatetimeWithNanoSeconds` (#4979)
+
+### Implementation changes
+
+- Use a class to wrap grpc streaming errors instead of monkey-patching (#4995)
+
 ## 1.0.0
 
 This is the stable v1.0.0 release of google-api-core for Python. Releases after
diff --git a/setup.py b/setup.py
index a26310a..a1e3735 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 name = 'google-api-core'
 description = 'Google API client core library'
-version = '1.0.0'
+version = '1.1.0'
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'