Tag open source release 1.1.9.

PiperOrigin-RevId: 372007801
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ed7b17c..672561e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 cmake_minimum_required(VERSION 3.1)
-project(Snappy VERSION 1.1.8 LANGUAGES C CXX)
+project(Snappy VERSION 1.1.9 LANGUAGES C CXX)
 
 # C++ standard can be overridden when this is used as a sub-project.
 if(NOT CMAKE_CXX_STANDARD)
diff --git a/NEWS b/NEWS
index 80b8d65..931a5e1 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-master, TBD:
+Snappy v1.1.9, May 4th 2021:
 
   * Performance improvements.