diff --git a/CHANGES.md b/CHANGES.md
index e2c4dedf..d2217438 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,13 +1,15 @@
-# Unreleased
+# 2.12.0 (2019-03-28)
 
 - [NEW] Added partitioned database support.
-- [IMPROVED] Updated `Result` iteration by paginating with views' `startkey` and queries'
-  `bookmark`.
 - [FIXED] Bug where document context manager performed remote save despite uncaught exceptions being
   raised inside `with` block.
 - [FIXED] Fixed parameter type of `selector` in docstring.
-- [IMPROVED] Updated `Getting started` section with a `get_query_result` example.
 - [FIXED] Removed internal `Document._document_id` property to allow a safe use of dict's methods.
+- [IMPROVED] Performance of `Result` iteration by releasing result objects immediately after they
+  are returned to the client.
+- [IMPROVED] Updated `Getting started` section with a `get_query_result` example.
+- [IMPROVED] Updated `Result` iteration by paginating with views' `startkey` and queries'
+  `bookmark`.
 
 # 2.11.0 (2019-01-21)
 
diff --git a/VERSION b/VERSION
index 57f9a3c9..d8b69897 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.11.1-SNAPSHOT
+2.12.0
diff --git a/docs/conf.py b/docs/conf.py
index 3df55b2e..c400d37b 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -60,9 +60,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '2.11.1-SNAPSHOT'
+version = '2.12.0'
 # The full version, including alpha/beta/rc tags.
-release = '2.11.1-SNAPSHOT'
+release = '2.12.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/src/cloudant/__init__.py b/src/cloudant/__init__.py
index 89d142f9..93752011 100644
--- a/src/cloudant/__init__.py
+++ b/src/cloudant/__init__.py
@@ -15,7 +15,7 @@
 """
 Cloudant / CouchDB Python client library API package
 """
-__version__ = '2.11.1-SNAPSHOT'
+__version__ = '2.12.0'
 
 # pylint: disable=wrong-import-position
 import contextlib