diff --git a/build.gradle b/build.gradle
index 27e617aebf..47a09dba1c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,7 +12,7 @@ apply plugin: 'maven'
 
 allprojects {
     group = 'io.digdag'
-    version = '0.9.42-SNAPSHOT'
+    version = '0.9.42'
 
     ext {
         isSnapshotRelease = version.endsWith('-SNAPSHOT')
diff --git a/digdag-cli/src/main/java/io/digdag/cli/SelfUpdate.java b/digdag-cli/src/main/java/io/digdag/cli/SelfUpdate.java
index 0a3fa39d57..55bd9cc14e 100644
--- a/digdag-cli/src/main/java/io/digdag/cli/SelfUpdate.java
+++ b/digdag-cli/src/main/java/io/digdag/cli/SelfUpdate.java
@@ -90,7 +90,7 @@ public SystemExitException usage(String error)
         err.println("");
         err.println("  Examples:");
         err.println("    $ " + programName + " selfupdate");
-        err.println("    $ " + programName + " selfupdate 0.9.42-SNAPSHOT");
+        err.println("    $ " + programName + " selfupdate 0.9.42");
         err.println("");
         return systemExit(error);
     }
diff --git a/digdag-client/src/main/resources/io/digdag/client/version.txt b/digdag-client/src/main/resources/io/digdag/client/version.txt
index 7c7342093c..0adbf03d18 100644
--- a/digdag-client/src/main/resources/io/digdag/client/version.txt
+++ b/digdag-client/src/main/resources/io/digdag/client/version.txt
@@ -1 +1 @@
-0.9.42-SNAPSHOT
+0.9.42
diff --git a/digdag-docs/src/command_reference.rst b/digdag-docs/src/command_reference.rst
index be9961ce90..abab043e34 100644
--- a/digdag-docs/src/command_reference.rst
+++ b/digdag-docs/src/command_reference.rst
@@ -241,7 +241,7 @@ Updates the executable binary file to the latest version or specified version. E
 .. code-block:: console
 
     $ digdag selfupdate
-    $ digdag selfupdate 0.9.41
+    $ digdag selfupdate 0.9.42
 
 Server-mode commands
 ----------------------------------
diff --git a/digdag-docs/src/releases.rst b/digdag-docs/src/releases.rst
index a8761daabb..3a301cd14c 100644
--- a/digdag-docs/src/releases.rst
+++ b/digdag-docs/src/releases.rst
@@ -5,6 +5,7 @@ Release Notes
     :maxdepth: 1
 
     # add new version here
+    releases/release-0.9.42
     releases/release-0.9.41
     releases/release-0.9.40
     releases/release-0.9.39
diff --git a/digdag-docs/src/releases/release-0.9.42.rst b/digdag-docs/src/releases/release-0.9.42.rst
new file mode 100644
index 0000000000..c59cee3d5b
--- /dev/null
+++ b/digdag-docs/src/releases/release-0.9.42.rst
@@ -0,0 +1,42 @@
+Release 0.9.42
+==============
+
+General Changes
+---------------
+* CLI: `push` command supports symbolic links outside of project. [#1199]
+* UI: Add `REFRESH_LOGS` button and stop auto refresh. [#1379]
+* `require>` enhancement. [#1422]
+* Support signedUrl in digdag-storage-gcs. [#1312]
+* Support system plugin in scheduler. [#1323]
+* Document improvements.
+
+Fixed Issues
+------------
+* UI issues and security fixes. [#1353 #1403 #1414]
+* Change JCenter, maven URL to https. [#1331 #1332 #1335]
+* Change JmxAgent implementation for Java11. [#790 #1342]
+
+Milestone
+---------
+`Here <https://github.com/treasure-data/digdag/milestone/21?closed=1>`_
+
+Release Date
+------------
+2020-07-01
+
+Contributors
+------------
+* Hiroyuki Sato
+* TrsNium
+* care0717
+* park
+* skokado
+* NomadBlacky
+* Mitsunori Komatsu
+* Peter Evans
+* Sadayuki Furuhashi
+* SatoruKamikaseda
+* Shota Suzuki
+* Toru Takahashi
+* Y.Kentaro
+* yoyama