diff --git a/source/includes/changelogs/releases/4.0.27.rst b/source/includes/changelogs/releases/4.0.27.rst
new file mode 100644
index 00000000000..0f2913f4c59
--- /dev/null
+++ b/source/includes/changelogs/releases/4.0.27.rst
@@ -0,0 +1,51 @@
+.. _4.0.27-changelog:
+
+4.0.27 Changelog
+----------------
+
+Sharding
+~~~~~~~~
+
+:issue:`SERVER-40170` Increase the default timeout for unit-tests which schedule work through NetworkTestEnv::launchAsync
+
+Replication
+~~~~~~~~~~~
+
+- :issue:`SERVER-34938` Secondary slowdown or hang due to content pinned in cache by single oplog batch
+- :issue:`SERVER-36263` Bypassing operation validation in applyOps should require special privilege
+
+Query
+~~~~~
+
+:issue:`SERVER-58127` Fix benchRun() memory leak for parsing benchRun() args under exception
+
+Storage
+~~~~~~~
+
+:issue:`SERVER-40712` Clarify the behaviour of db.dropDatabase and the dropDatabase command
+
+Build and Packaging
+~~~~~~~~~~~~~~~~~~~
+
+:issue:`SERVER-54729` MongoDB Enterprise Debian/Ubuntu packages should depend on libsasl2-modules and libsasl2-modules-gssapi-mit
+
+Internals
+~~~~~~~~~
+
+- :issue:`SERVER-53726` Platform Support: Remove RHEL6 zSeries
+- :issue:`SERVER-53728` Platform Support: Remove SLES12 zSeries
+- :issue:`SERVER-55649` Sharding messages being logged for non-sharded clusters
+- :issue:`SERVER-56516` Fix undefined behaviour in parsing code for $slice projectional operator
+- :issue:`SERVER-57642` Invariant Failure on src/mongo/db/query/plan_yield_policy.cpp 75 | Aborting
+- :issue:`SERVER-57798` Direct user to MongoDB Compass download page when failing to install MongoDB Compass due to a connection issue using ./install_compass
+- :issue:`SERVER-57983` Integer overflow for $range in Classic Engine
+- :issue:`SERVER-58283` Add a new versioning file to set MONGO_VERSION and MONGO_GIT_HASH
+- :issue:`SERVER-58402` Increase timeout of shutdown command in shutdown_primary.js
+- :issue:`SERVER-59055` Pin oauthlib == 3.1.0 in 4.0 branch
+- :issue:`SERVER-59074` Do not acquire storage tickets just to set/wait on oplog visibility
+- :issue:`SERVER-59197` Delete fam image entries when the corresponding session documents are deleted
+- :issue:`SERVER-59242` update to snmp 5.9.1
+- :issue:`SERVER-59262` Remove burn_in_tests tasks from storeFindAndModifyImagesInSideCollection build variants 
+- :issue:`SERVER-59414` Retry curator setup in powercycle on older branches
+- :issue:`SERVER-59504` Fix formatting in network_test_env.h on v4.0
+
diff --git a/source/release-notes/4.0-changelog.txt b/source/release-notes/4.0-changelog.txt
index a1e43cd9e28..3ce5d108de6 100644
--- a/source/release-notes/4.0-changelog.txt
+++ b/source/release-notes/4.0-changelog.txt
@@ -10,6 +10,8 @@
    :depth: 1
    :class: twocols
 
+.. include:: /includes/changelogs/releases/4.0.27.rst
+
 .. include:: /includes/changelogs/releases/4.0.26.rst
 
 .. include:: /includes/changelogs/releases/4.0.25.rst
diff --git a/source/release-notes/4.0.txt b/source/release-notes/4.0.txt
index 028d439138a..7edb04e8b87 100644
--- a/source/release-notes/4.0.txt
+++ b/source/release-notes/4.0.txt
@@ -13,6 +13,29 @@ Release Notes for MongoDB 4.0
 Minor Releases
 --------------
 
+.. _4.0.27-release-notes:
+
+4.0.27 - Upcoming
+~~~~~~~~~~~~~~~~~
+
+Issues fixed:
+
+- :issue:`SERVER-59074` Do not acquire storage tickets just to set/wait
+  on oplog visibility
+- :issue:`SERVER-56516` Fix undefined behavior in parsing code for
+  $slice projectional operator
+- :issue:`SERVER-54729` MongoDB Enterprise Debian/Ubuntu packages
+  should depend on libsasl2-modules and libsasl2-modules-gssapi-mit
+- :issue:`SERVER-40712` Clarify the behavior of db.dropDatabase and
+  the dropDatabase command
+- :issue:`SERVER-34938` Secondary slowdown or hang due to content
+  pinned in cache by single oplog batch
+
+- `All JIRA issues closed in 4.0.27
+  <https://jira.mongodb.org/issues/?jql=project%20in%20(SERVER%2CTOOLS%2CWT)%20AND%20resolution%3D%27Fixed%27%20and%20fixversion%3D%274.0.27%27>`_
+
+- :ref:`4.0.27-changelog`
+
 .. _4.0.26-release-notes:
 
 4.0.26 - Jul 23, 2021