diff --git a/README.md b/README.md
index 91ff2aaf2dd..2206be50c64 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ Gradle is used as a build and dependency management system.
 The project is under active ongoing development. At this stage, we do not recommend using the framework for production purposes.
 You are welcome to experiment and [provide your feedback][email-developers].
 
-The latest stable version is [1.0.0-pre1][latest-release].
+The latest stable version is [1.0.0-pre4][latest-release].
 
 Please track our release announcement to be informed about the production version (1.0.0) release.  
 
@@ -46,7 +46,7 @@ or provide custom storage implementations.
 If you need to use API with one of these annotations, please [contact us][email-developers].
 
 [email-developers]: mailto:spine-developers@teamdev.com
-[latest-release]: https://github.com/SpineEventEngine/core-java/releases/tag/1.0.0-pre1 
+[latest-release]: https://github.com/SpineEventEngine/core-java/releases/tag/1.0.0-pre4 
 [spine-site]: https://spine.io/
 [wiki-home]: https://github.com/SpineEventEngine/core-java/wiki
 [java-code-style]: https://github.com/SpineEventEngine/core-java/wiki/Java-Code-Style 
diff --git a/config b/config
index 40c41827b96..7538199abf1 160000
--- a/config
+++ b/config
@@ -1 +1 @@
-Subproject commit 40c41827b96675b8a388efe79ceb3858fb15aaee
+Subproject commit 7538199abf152f1e21e2413d03c70190d5e5ab42
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 29953ea141f..87b738cbd05 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 558870dad58..5a7a6a11cea 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/server/src/test/proto/spine/test/rejection/project_enrichments.proto b/server/src/test/proto/spine/test/rejection/project_enrichments.proto
new file mode 100644
index 00000000000..6f4adf6848e
--- /dev/null
+++ b/server/src/test/proto/spine/test/rejection/project_enrichments.proto
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2019, TeamDev. All rights reserved.
+ *
+ * Redistribution and use in source and/or binary forms, with or without
+ * modification, must retain the above copyright notice and the following
+ * disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+syntax = "proto3";
+
+package spine.test.rejection;
+
+import "spine/options.proto";
+
+option (type_url_prefix) = "type.spine.io";
+option (SPI_all) = true;
+option java_package = "io.spine.test.rejection";
+
+// An enrichment used in rejection tests.
+//
+message ProjectInfo {
+    option (enrichment_for) = "spine.test.rejection.InvalidProjectName";
+
+    string project_name = 1 [(by) = "spine.test.rejection.InvalidProjectName.project_id"];
+}
diff --git a/server/src/test/proto/spine/test/rejection/project_rejections.proto b/server/src/test/proto/spine/test/rejection/project_rejections.proto
index 7540349b6a5..be592f46dd4 100644
--- a/server/src/test/proto/spine/test/rejection/project_rejections.proto
+++ b/server/src/test/proto/spine/test/rejection/project_rejections.proto
@@ -38,8 +38,3 @@ message MissingOwner {
     ProjectId project_id = 1;
 }
 
-message ProjectInfo {
-    option (enrichment_for) = "InvalidProjectName";
-
-    string project_name = 1 [(by) = "InvalidProjectName.project_id"];
-}
diff --git a/version.gradle b/version.gradle
index 6b807241c0e..b2e188b0849 100644
--- a/version.gradle
+++ b/version.gradle
@@ -25,7 +25,7 @@
  *  as we want to manage the versions in a single source.
  */
 
-def final SPINE_VERSION = '1.0.0-SNAPSHOT'
+def final SPINE_VERSION = '1.0.0-pre4'
 
 ext {
     // The version of the modules in this project.