diff --git a/README.md b/README.md
index 4241cb95..41d891b9 100644
--- a/README.md
+++ b/README.md
@@ -16,16 +16,16 @@ Gradle:
 ```kotlin
 dependencies {
     // Datastore Storage support library.
-    implementation("io.spine.gcloud:spine-datastore:1.5.22")
+    implementation("io.spine.gcloud:spine-datastore:1.6.0")
 
     // Pub/Sub messaging support library.
-    implementation("io.spine.gcloud:spine-pubsub:1.5.22")
+    implementation("io.spine.gcloud:spine-pubsub:1.6.0")
 
     // Stackdriver Trace support library.
-    implementation("io.spine.gcloud:spine-stackdriver-trace:1.5.22")
+    implementation("io.spine.gcloud:spine-stackdriver-trace:1.6.0")
 
     // Datastore-related test utilities (if needed).
-    implementation("io.spine.gcloud:testutil-gcloud:1.5.22")
+    implementation("io.spine.gcloud:testutil-gcloud:1.6.0")
 }
 ```
 
diff --git a/config b/config
index e6245ae7..a92f5382 160000
--- a/config
+++ b/config
@@ -1 +1 @@
-Subproject commit e6245ae7f7e11d46c529d94023bdbeade527ab67
+Subproject commit a92f5382c816462dcfe7b4dc9aaab41aafc003ca
diff --git a/license-report.md b/license-report.md
index b7f12425..9dd4f300 100644
--- a/license-report.md
+++ b/license-report.md
@@ -1,6 +1,6 @@
 
     
-# Dependencies of `io.spine.gcloud:spine-datastore:1.5.22`
+# Dependencies of `io.spine.gcloud:spine-datastore:1.6.0`
 
 ## Runtime
 1. **Group:** androidx.annotation **Name:** annotation **Version:** 1.1.0
@@ -535,6 +535,7 @@
 1. **Group:** org.hamcrest **Name:** hamcrest-core **Version:** 1.3
      * **POM License: New BSD License** - [http://www.opensource.org/licenses/bsd-license.php](http://www.opensource.org/licenses/bsd-license.php)
 
+1. **Group:** org.junit **Name:** junit-bom **Version:** 5.6.2 **No license information found**
 1. **Group:** org.junit.jupiter **Name:** junit-jupiter-api **Version:** 5.6.2
      * **POM Project URL:** [https://junit.org/junit5/](https://junit.org/junit5/)
      * **POM License: Eclipse Public License v2.0** - [https://www.eclipse.org/legal/epl-v20.html](https://www.eclipse.org/legal/epl-v20.html)
@@ -593,12 +594,12 @@
  The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
 
-This report was generated on **Wed Jun 24 13:30:07 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
+This report was generated on **Tue Sep 08 22:45:50 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
     
-# Dependencies of `io.spine.gcloud:spine-pubsub:1.5.22`
+# Dependencies of `io.spine.gcloud:spine-pubsub:1.6.0`
 
 ## Runtime
 1. **Group:** com.google.android **Name:** annotations **Version:** 4.1.1.4
@@ -956,6 +957,7 @@ This report was generated on **Wed Jun 24 13:30:07 EEST 2020** using [Gradle-Lic
 1. **Group:** org.hamcrest **Name:** hamcrest-core **Version:** 1.3
      * **POM License: New BSD License** - [http://www.opensource.org/licenses/bsd-license.php](http://www.opensource.org/licenses/bsd-license.php)
 
+1. **Group:** org.junit **Name:** junit-bom **Version:** 5.6.2 **No license information found**
 1. **Group:** org.junit.jupiter **Name:** junit-jupiter-api **Version:** 5.6.2
      * **POM Project URL:** [https://junit.org/junit5/](https://junit.org/junit5/)
      * **POM License: Eclipse Public License v2.0** - [https://www.eclipse.org/legal/epl-v20.html](https://www.eclipse.org/legal/epl-v20.html)
@@ -1009,12 +1011,12 @@ This report was generated on **Wed Jun 24 13:30:07 EEST 2020** using [Gradle-Lic
  The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
 
-This report was generated on **Wed Jun 24 13:30:15 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
+This report was generated on **Tue Sep 08 22:45:55 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
     
-# Dependencies of `io.spine.gcloud:spine-stackdriver-trace:1.5.22`
+# Dependencies of `io.spine.gcloud:spine-stackdriver-trace:1.6.0`
 
 ## Runtime
 1. **Group:** com.fasterxml.jackson.core **Name:** jackson-core **Version:** 2.9.9
@@ -1553,6 +1555,7 @@ This report was generated on **Wed Jun 24 13:30:15 EEST 2020** using [Gradle-Lic
 1. **Group:** org.hamcrest **Name:** hamcrest-core **Version:** 1.3
      * **POM License: New BSD License** - [http://www.opensource.org/licenses/bsd-license.php](http://www.opensource.org/licenses/bsd-license.php)
 
+1. **Group:** org.junit **Name:** junit-bom **Version:** 5.6.2 **No license information found**
 1. **Group:** org.junit.jupiter **Name:** junit-jupiter-api **Version:** 5.6.2
      * **POM Project URL:** [https://junit.org/junit5/](https://junit.org/junit5/)
      * **POM License: Eclipse Public License v2.0** - [https://www.eclipse.org/legal/epl-v20.html](https://www.eclipse.org/legal/epl-v20.html)
@@ -1611,12 +1614,12 @@ This report was generated on **Wed Jun 24 13:30:15 EEST 2020** using [Gradle-Lic
  The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
 
-This report was generated on **Wed Jun 24 13:30:24 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
+This report was generated on **Tue Sep 08 22:46:02 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
     
-# Dependencies of `io.spine.gcloud:spine-testutil-gcloud:1.5.22`
+# Dependencies of `io.spine.gcloud:spine-testutil-gcloud:1.6.0`
 
 ## Runtime
 1. **Group:** androidx.annotation **Name:** annotation **Version:** 1.1.0
@@ -1819,6 +1822,7 @@ This report was generated on **Wed Jun 24 13:30:24 EEST 2020** using [Gradle-Lic
      * **POM License: MIT license** - [http://www.opensource.org/licenses/mit-license.php](http://www.opensource.org/licenses/mit-license.php)
      * **POM License: The Apache Software License, Version 2.0** - [http://www.apache.org/licenses/LICENSE-2.0.txt](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
+1. **Group:** org.junit **Name:** junit-bom **Version:** 5.6.2 **No license information found**
 1. **Group:** org.junit.jupiter **Name:** junit-jupiter-api **Version:** 5.6.2
      * **POM Project URL:** [https://junit.org/junit5/](https://junit.org/junit5/)
      * **POM License: Eclipse Public License v2.0** - [https://www.eclipse.org/legal/epl-v20.html](https://www.eclipse.org/legal/epl-v20.html)
@@ -2172,6 +2176,7 @@ This report was generated on **Wed Jun 24 13:30:24 EEST 2020** using [Gradle-Lic
 1. **Group:** org.hamcrest **Name:** hamcrest-core **Version:** 1.3
      * **POM License: New BSD License** - [http://www.opensource.org/licenses/bsd-license.php](http://www.opensource.org/licenses/bsd-license.php)
 
+1. **Group:** org.junit **Name:** junit-bom **Version:** 5.6.2 **No license information found**
 1. **Group:** org.junit.jupiter **Name:** junit-jupiter-api **Version:** 5.6.2
      * **POM Project URL:** [https://junit.org/junit5/](https://junit.org/junit5/)
      * **POM License: Eclipse Public License v2.0** - [https://www.eclipse.org/legal/epl-v20.html](https://www.eclipse.org/legal/epl-v20.html)
@@ -2230,4 +2235,4 @@ This report was generated on **Wed Jun 24 13:30:24 EEST 2020** using [Gradle-Lic
  The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
 
-This report was generated on **Wed Jun 24 13:30:28 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
\ No newline at end of file
+This report was generated on **Tue Sep 08 22:46:05 EEST 2020** using [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
index 90624eb3..245a8dce 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@ all modules and does not describe the project structure per-subproject.
 
 <groupId>io.spine.gcloud</groupId>
 <artifactId>spine-gcloud-java</artifactId>
-<version>1.5.22</version>
+<version>1.6.0</version>
 
 <inceptionYear>2015</inceptionYear>
 
@@ -46,7 +46,7 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>io.spine</groupId>
     <artifactId>spine-server</artifactId>
-    <version>1.5.21</version>
+    <version>1.6.0</version>
     <scope>compile</scope>
   </dependency>
   <dependency>
@@ -58,7 +58,7 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>io.spine</groupId>
     <artifactId>spine-testutil-server</artifactId>
-    <version>1.5.21</version>
+    <version>1.6.0</version>
     <scope>test</scope>
   </dependency>
   <dependency>
@@ -114,7 +114,7 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>io.spine.tools</groupId>
     <artifactId>spine-protoc-plugin</artifactId>
-    <version>1.5.21</version>
+    <version>1.6.0</version>
   </dependency>
   <dependency>
     <groupId>net.sourceforge.pmd</groupId>
diff --git a/version.gradle.kts b/version.gradle.kts
index 5f7debba..7a896ac0 100644
--- a/version.gradle.kts
+++ b/version.gradle.kts
@@ -25,6 +25,6 @@
  * `.config/gradle/dependencies.gradle`.
  */
 
-val spineBaseVersion: String by extra("1.5.21")
-val spineCoreVersion: String by extra("1.5.21")
-val versionToPublish: String by extra("1.5.22")
+val spineBaseVersion: String by extra("1.6.0")
+val spineCoreVersion: String by extra("1.6.0")
+val versionToPublish: String by extra("1.6.0")