Prepare 3.4.15 (2021.2.15).

See #1412

pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.data.build</groupId>
 		<artifactId>spring-data-parent</artifactId>
-		<version>2.7.15-SNAPSHOT</version>
+		<version>2.7.15</version>
 	</parent>
 
 	<groupId>org.springframework.data</groupId>
@@ -98,7 +98,7 @@
 		<hppc.version>0.5.4</hppc.version>
 		<multithreadedtc.version>1.01</multithreadedtc.version>
 		<project.type>multi</project.type>
-		<springdata.commons>2.7.15-SNAPSHOT</springdata.commons>
+		<springdata.commons>2.7.15</springdata.commons>
 	</properties>
 
 	<dependencyManagement>
@@ -394,20 +394,8 @@
 	</profiles>
 
 	<repositories>
-		<repository>
-			<id>spring-snapshot</id>
-			<url>https://repo.spring.io/snapshot</url>
-			<snapshots>
-				<enabled>true</enabled>
-			</snapshots>
-			<releases>
-				<enabled>false</enabled>
-			</releases>
-		</repository>
-		<repository>
-			<id>spring-milestone</id>
-			<url>https://repo.spring.io/milestone</url>
-		</repository>
+		
+		
 	</repositories>
 
 </project>

src/main/resources/notice.txt

@@ -1,4 +1,4 @@
-Spring Data for Apache Cassandra 3.4.14 (2021.2.14)
+Spring Data for Apache Cassandra 3.4.15 (2021.2.15)
 Copyright (c) [2010-2021] Pivotal Software, Inc.
 
 This product is licensed to you under the Apache License, Version 2.0 (the "License").
@@ -30,5 +30,6 @@ conditions of the subcomponent's license, as noted in the LICENSE file.
 
 
 
+