Revert "Prepare master branch for next release, 28.0.0 (#14595)"

This reverts commit b02859b.

Author: FrankChen021

benchmarks/pom.xml

@@ -27,7 +27,7 @@
   <parent>
     <groupId>org.apache.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>28.0.0-SNAPSHOT</version>
+    <version>27.0.0-SNAPSHOT</version>
   </parent>
 
   <dependencies>

cloud/aws-common/pom.xml

@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>28.0.0-SNAPSHOT</version>
+        <version>27.0.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 

cloud/gcp-common/pom.xml

@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>28.0.0-SNAPSHOT</version>
+        <version>27.0.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 

distribution/docker/docker-compose.yml

@@ -51,7 +51,7 @@ services:
       - ZOO_MY_ID=1
 
   coordinator:
-    image: apache/druid:28.0.0
+    image: apache/druid:27.0.0
     container_name: coordinator
     volumes:
       - druid_shared:/opt/shared
@@ -67,7 +67,7 @@ services:
       - environment
 
   broker:
-    image: apache/druid:28.0.0
+    image: apache/druid:27.0.0
     container_name: broker
     volumes:
       - broker_var:/opt/druid/var
@@ -83,7 +83,7 @@ services:
       - environment
 
   historical:
-    image: apache/druid:28.0.0
+    image: apache/druid:27.0.0
     container_name: historical
     volumes:
       - druid_shared:/opt/shared
@@ -100,7 +100,7 @@ services:
       - environment
 
   middlemanager:
-    image: apache/druid:28.0.0
+    image: apache/druid:27.0.0
     container_name: middlemanager
     volumes:
       - druid_shared:/opt/shared
@@ -118,7 +118,7 @@ services:
       - environment
 
   router:
-    image: apache/druid:28.0.0
+    image: apache/druid:27.0.0
     container_name: router
     volumes:
       - router_var:/opt/druid/var

distribution/pom.xml

@@ -30,7 +30,7 @@
     <parent>
         <artifactId>druid</artifactId>
         <groupId>org.apache.druid</groupId>
-        <version>28.0.0-SNAPSHOT</version>
+        <version>27.0.0-SNAPSHOT</version>
     </parent>
 
     <dependencies>

extensions-contrib/aliyun-oss-extensions/pom.xml

@@ -28,7 +28,7 @@
   <parent>
     <groupId>org.apache.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>28.0.0-SNAPSHOT</version>
+    <version>27.0.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 

extensions-contrib/ambari-metrics-emitter/pom.xml

@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>28.0.0-SNAPSHOT</version>
+    <version>27.0.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>
 

extensions-contrib/cassandra-storage/pom.xml

@@ -29,7 +29,7 @@
     <parent>
         <groupId>org.apache.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>28.0.0-SNAPSHOT</version>
+        <version>27.0.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 

extensions-contrib/cloudfiles-extensions/pom.xml

@@ -29,7 +29,7 @@
     <parent>
         <groupId>org.apache.druid</groupId>
         <artifactId>druid</artifactId>
-        <version>28.0.0-SNAPSHOT</version>
+        <version>27.0.0-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 

extensions-contrib/compressed-bigdecimal/pom.xml

@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.druid</groupId>
     <artifactId>druid</artifactId>
-    <version>28.0.0-SNAPSHOT</version>
+    <version>27.0.0-SNAPSHOT</version>
     <relativePath>../../pom.xml</relativePath>
   </parent>