diff --git a/README.md b/README.md
index 774169b9dcb..02a2d8b9356 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,9 @@
 
 [![Build Status](https://img.shields.io/jenkins/build.svg?jobUrl=https://jenkins.swagger.io/job/oss-swagger-codegen-3)](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-codegen-3)
 
-- 3.0.26-SNAPSHOT:  [![Build Status](https://img.shields.io/travis/swagger-api/swagger-codegen/3.0.0.svg?label=Petstore%20Integration%20Test)](https://travis-ci.org/swagger-api/swagger-codegen)
+- 3.0.27-SNAPSHOT:  [![Build Status](https://img.shields.io/travis/swagger-api/swagger-codegen/3.0.0.svg?label=Petstore%20Integration%20Test)](https://travis-ci.org/swagger-api/swagger-codegen)
 [![Java Test](https://img.shields.io/jenkins/build.svg?jobUrl=https://jenkins.swagger.io/job/oss-swagger-codegen-3)](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-codegen-3)
-- Master (2.4.20-SNAPSHOT): [![Build Status](https://img.shields.io/travis/swagger-api/swagger-codegen/master.svg?label=Petstore%20Integration%20Test)](https://travis-ci.org/swagger-api/swagger-codegen)
+- Master (2.4.21-SNAPSHOT): [![Build Status](https://img.shields.io/travis/swagger-api/swagger-codegen/master.svg?label=Petstore%20Integration%20Test)](https://travis-ci.org/swagger-api/swagger-codegen)
 [![Java Test](https://img.shields.io/jenkins/build.svg?jobUrl=https://jenkins.swagger.io/job/oss-swagger-codegen-master)](https://jenkins.swagger.io/view/OSS%20-%20Java/job/oss-swagger-codegen-master)
 [![Windows Test](https://ci.appveyor.com/api/projects/status/github/swagger-api/swagger-codegen?branch=master&svg=true&passingText=Windows%20Test%20-%20OK&failingText=Windows%20Test%20-%20Fails)](https://ci.appveyor.com/project/swaggerhub-bot/swagger-codegen)
 
@@ -37,7 +37,7 @@ dependency example:
 <dependency>
     <groupId>io.swagger.codegen.v3</groupId>
     <artifactId>swagger-codegen-maven-plugin</artifactId>
-    <version>3.0.25</version>
+    <version>3.0.26</version>
 </dependency>
 ```
 
@@ -54,7 +54,7 @@ dependency example:
 <dependency>
     <groupId>io.swagger</groupId>
     <artifactId>swagger-codegen-maven-plugin</artifactId>
-    <version>2.4.19</version>
+    <version>2.4.20</version>
 </dependency>
 ```
 
@@ -112,8 +112,9 @@ The OpenAPI Specification has undergone 3 revisions since initial creation in 20
 
 Swagger Codegen Version    | Release Date | OpenAPI Spec compatibility | Notes
 -------------------------- | ------------ | -------------------------- | -----
-3.0.26-SNAPSHOT (current 3.0.0, upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/io/swagger/codegen/v3/swagger-codegen-cli/3.0.26-SNAPSHOT/)| TBD | 1.0, 1.1, 1.2, 2.0, 3.0 | Minor release
-[3.0.25](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.25) (**current stable**) | 2021-03-04   | 1.0, 1.1, 1.2, 2.0, 3.0   | [tag v3.0.25](https://github.com/swagger-api/swagger-codegen/tree/v3.0.25)
+3.0.27-SNAPSHOT (current 3.0.0, upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/io/swagger/codegen/v3/swagger-codegen-cli/3.0.27-SNAPSHOT/)| TBD | 1.0, 1.1, 1.2, 2.0, 3.0 | Minor release
+[3.0.26](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.26) (**current stable**) | 2021-05-28   | 1.0, 1.1, 1.2, 2.0, 3.0   | [tag v3.0.26](https://github.com/swagger-api/swagger-codegen/tree/v3.0.26)
+[3.0.25](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.25) | 2021-03-04   | 1.0, 1.1, 1.2, 2.0, 3.0   | [tag v3.0.25](https://github.com/swagger-api/swagger-codegen/tree/v3.0.25)
 [3.0.24](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.24) | 2020-12-29   | 1.0, 1.1, 1.2, 2.0, 3.0   | [tag v3.0.24](https://github.com/swagger-api/swagger-codegen/tree/v3.0.24)
 [3.0.23](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.23) | 2020-11-02   | 1.0, 1.1, 1.2, 2.0, 3.0   | [tag v3.0.23](https://github.com/swagger-api/swagger-codegen/tree/v3.0.23)
 [3.0.22](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.22) | 2020-10-05   | 1.0, 1.1, 1.2, 2.0, 3.0   | [tag v3.0.22](https://github.com/swagger-api/swagger-codegen/tree/v3.0.22)
@@ -138,8 +139,9 @@ Swagger Codegen Version    | Release Date | OpenAPI Spec compatibility | Notes
 [3.0.2](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.2)| 2018-10-19 | 1.0, 1.1, 1.2, 2.0, 3.0 | Minor release
 [3.0.1](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.1)| 2018-10-05 | 1.0, 1.1, 1.2, 2.0, 3.0 | Major release with breaking changes
 [3.0.0](https://github.com/swagger-api/swagger-codegen/releases/tag/v3.0.0)| 2018-09-06 | 1.0, 1.1, 1.2, 2.0, 3.0 | Major release with breaking changes
-2.4.20-SNAPSHOT (current master, upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/io/swagger/swagger-codegen-cli/2.4.20-SNAPSHOT/)| TBD   | 1.0, 1.1, 1.2, 2.0   | Minor release
-[2.4.19](https://github.com/swagger-api/swagger-codegen/releases/tag/v2.4.19) (**current stable**) | 2021-03-04   | 1.0, 1.1, 1.2, 2.0   | [tag v2.4.19](https://github.com/swagger-api/swagger-codegen/tree/v2.4.19)
+2.4.21-SNAPSHOT (current master, upcoming minor release) [SNAPSHOT](https://oss.sonatype.org/content/repositories/snapshots/io/swagger/swagger-codegen-cli/2.4.21-SNAPSHOT/)| TBD   | 1.0, 1.1, 1.2, 2.0   | Minor release
+[2.4.20](https://github.com/swagger-api/swagger-codegen/releases/tag/v2.4.20) (**current stable**) | 2021-05-28   | 1.0, 1.1, 1.2, 2.0   | [tag v2.4.20](https://github.com/swagger-api/swagger-codegen/tree/v2.4.20)
+[2.4.19](https://github.com/swagger-api/swagger-codegen/releases/tag/v2.4.19) | 2021-03-04   | 1.0, 1.1, 1.2, 2.0   | [tag v2.4.19](https://github.com/swagger-api/swagger-codegen/tree/v2.4.19)
 [2.4.18](https://github.com/swagger-api/swagger-codegen/releases/tag/v2.4.18) | 2020-12-29   | 1.0, 1.1, 1.2, 2.0   | [tag v2.4.18](https://github.com/swagger-api/swagger-codegen/tree/v2.4.18)
 [2.4.17](https://github.com/swagger-api/swagger-codegen/releases/tag/v2.4.17) | 2020-11-02   | 1.0, 1.1, 1.2, 2.0   | [tag v2.4.17](https://github.com/swagger-api/swagger-codegen/tree/v2.4.17)
 [2.4.16](https://github.com/swagger-api/swagger-codegen/releases/tag/v2.4.16) | 2020-10-05   | 1.0, 1.1, 1.2, 2.0   | [tag v2.4.16](https://github.com/swagger-api/swagger-codegen/tree/v2.4.16)
@@ -172,12 +174,12 @@ Swagger Codegen Version    | Release Date | OpenAPI Spec compatibility | Notes
 If you're looking for the latest stable version, you can grab it directly from Maven.org (Java 8 runtime at a minimum):
 
 ```sh
-wget https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.25/swagger-codegen-cli-3.0.25.jar -O swagger-codegen-cli.jar
+wget https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.26/swagger-codegen-cli-3.0.26.jar -O swagger-codegen-cli.jar
 
 java -jar swagger-codegen-cli.jar --help
 ```
 
-For Windows users, you will need to install [wget](http://gnuwin32.sourceforge.net/packages/wget.htm) or you can use Invoke-WebRequest in PowerShell (3.0+), e.g. `Invoke-WebRequest -OutFile swagger-codegen-cli.jar https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.25/swagger-codegen-cli-3.0.25.jar`
+For Windows users, you will need to install [wget](http://gnuwin32.sourceforge.net/packages/wget.htm) or you can use Invoke-WebRequest in PowerShell (3.0+), e.g. `Invoke-WebRequest -OutFile swagger-codegen-cli.jar https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.26/swagger-codegen-cli-3.0.26.jar`
 
 On a mac, it's even easier with `brew`:
 ```sh
diff --git a/modules/swagger-codegen-cli/pom.xml b/modules/swagger-codegen-cli/pom.xml
index e6aa144bcb8..5b2b4cb64c4 100644
--- a/modules/swagger-codegen-cli/pom.xml
+++ b/modules/swagger-codegen-cli/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>io.swagger.codegen.v3</groupId>
         <artifactId>swagger-codegen-project</artifactId>
-        <version>3.0.26-SNAPSHOT</version>
+        <version>3.0.26</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/swagger-codegen-maven-plugin/pom.xml b/modules/swagger-codegen-maven-plugin/pom.xml
index 743f40541b8..57c0b7975ad 100644
--- a/modules/swagger-codegen-maven-plugin/pom.xml
+++ b/modules/swagger-codegen-maven-plugin/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>io.swagger.codegen.v3</groupId>
         <artifactId>swagger-codegen-project</artifactId>
-        <version>3.0.26-SNAPSHOT</version>
+        <version>3.0.26</version>
         <relativePath>../..</relativePath>
     </parent>
     <artifactId>swagger-codegen-maven-plugin</artifactId>
diff --git a/modules/swagger-codegen/pom.xml b/modules/swagger-codegen/pom.xml
index fd11f78dd42..76dbd24215b 100644
--- a/modules/swagger-codegen/pom.xml
+++ b/modules/swagger-codegen/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <groupId>io.swagger.codegen.v3</groupId>
         <artifactId>swagger-codegen-project</artifactId>
-        <version>3.0.26-SNAPSHOT</version>
+        <version>3.0.26</version>
         <relativePath>../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -200,7 +200,7 @@
     </reporting>
     <properties>
         <diffutils-version>1.3.0</diffutils-version>
-        <swagger-codegen-v2-version>2.4.20-SNAPSHOT</swagger-codegen-v2-version>
+        <swagger-codegen-v2-version>2.4.20</swagger-codegen-v2-version>
     </properties>
     <dependencies>
         <dependency>
diff --git a/modules/swagger-codegen/src/test/java/io/swagger/codegen/v3/service/GeneratorServiceTest.java b/modules/swagger-codegen/src/test/java/io/swagger/codegen/v3/service/GeneratorServiceTest.java
index 439934c4068..a389172eddb 100644
--- a/modules/swagger-codegen/src/test/java/io/swagger/codegen/v3/service/GeneratorServiceTest.java
+++ b/modules/swagger-codegen/src/test/java/io/swagger/codegen/v3/service/GeneratorServiceTest.java
@@ -599,7 +599,7 @@ public void testGeneratorService_ResolvedSpec() throws IOException {
         new GeneratorService().generationRequest(request).generate();
         String spec = FileUtils.readFileToString(new File(path + File.separator + "openapi.json"));
         Assert.assertFalse(spec.contains("#/components/schemas/inline_response_200"));
-        Assert.assertFalse(spec.contains("#/components/schemas/body"));
+        Assert.assertFalse(spec.contains("#/components/schemas/productflatten_body"));
 
         path = getTmpFolder().getAbsolutePath();
         request = new GenerationRequest();
@@ -618,7 +618,7 @@ public void testGeneratorService_ResolvedSpec() throws IOException {
         new GeneratorService().generationRequest(request).generate();
         spec = FileUtils.readFileToString(new File(path + File.separator + "openapi.yaml"));
         Assert.assertFalse(spec.contains("#/components/schemas/inline_response_200"));
-        Assert.assertFalse(spec.contains("#/components/schemas/body"));
+        Assert.assertFalse(spec.contains("#/components/schemas/productflatten_body"));
 
 
         path = getTmpFolder().getAbsolutePath();
@@ -636,7 +636,7 @@ public void testGeneratorService_ResolvedSpec() throws IOException {
         new GeneratorService().generationRequest(request).generate();
         spec = FileUtils.readFileToString(new File(path + File.separator + "openapi.json"));
         Assert.assertTrue(spec.contains("#/components/schemas/inline_response_200"));
-        Assert.assertTrue(spec.contains("#/components/schemas/body"));
+        Assert.assertTrue(spec.contains("#/components/schemas/productflatten_body"));
 
 
         path = getTmpFolder().getAbsolutePath();
@@ -654,7 +654,7 @@ public void testGeneratorService_ResolvedSpec() throws IOException {
         new GeneratorService().generationRequest(request).generate();
         spec = FileUtils.readFileToString(new File(path + File.separator + "openapi.yaml"));
         Assert.assertTrue(spec.contains("#/components/schemas/inline_response_200"));
-        Assert.assertTrue(spec.contains("#/components/schemas/body"));
+        Assert.assertTrue(spec.contains("#/components/schemas/productflatten_body"));
 
         path = getTmpFolder().getAbsolutePath();
         request = new GenerationRequest();
diff --git a/modules/swagger-generator/pom.xml b/modules/swagger-generator/pom.xml
index 8ef7961898f..573bd6bd091 100644
--- a/modules/swagger-generator/pom.xml
+++ b/modules/swagger-generator/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.swagger.codegen.v3</groupId>
         <artifactId>swagger-codegen-project</artifactId>
-        <version>3.0.26-SNAPSHOT</version>
+        <version>3.0.26</version>
         <relativePath>../..</relativePath>
     </parent>
     <artifactId>swagger-generator</artifactId>
diff --git a/pom.xml b/pom.xml
index 47a5e3ef655..74aeb51ebca 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
     <artifactId>swagger-codegen-project</artifactId>
     <packaging>pom</packaging>
     <name>swagger-codegen-project</name>
-    <version>3.0.26-SNAPSHOT</version>
+    <version>3.0.26</version>
     <url>https://github.com/swagger-api/swagger-codegen</url>
     <scm>
         <connection>scm:git:git@github.com:swagger-api/swagger-codegen.git</connection>
@@ -1149,11 +1149,11 @@
         </repository>
     </repositories>
     <properties>
-        <swagger-codegen-generators-version>1.0.26-SNAPSHOT</swagger-codegen-generators-version>
-        <swagger-core-version>2.1.4</swagger-core-version>
+        <swagger-codegen-generators-version>1.0.26</swagger-codegen-generators-version>
+        <swagger-core-version>2.1.9</swagger-core-version>
         <swagger-core-version-v1>1.6.2</swagger-core-version-v1>
-        <swagger-parser-version>2.0.23</swagger-parser-version>
-        <swagger-parser-version-v1>1.0.54</swagger-parser-version-v1>
+        <swagger-parser-version>2.0.26</swagger-parser-version>
+        <swagger-parser-version-v1>1.0.55</swagger-parser-version-v1>
         <jackson-version>2.11.4</jackson-version>
         <scala-version>2.11.1</scala-version>
         <felix-version>3.3.0</felix-version>
diff --git a/pom.xml.bash b/pom.xml.bash
index 8be0d00e294..ec2ba083f35 100644
--- a/pom.xml.bash
+++ b/pom.xml.bash
@@ -9,7 +9,7 @@
     <artifactId>swagger-codegen-project</artifactId>
     <packaging>pom</packaging>
     <name>swagger-codegen-project</name>
-    <version>3.0.26-SNAPSHOT</version>
+    <version>3.0.26</version>
     <url>https://github.com/swagger-api/swagger-codegen</url>
     <scm>
         <connection>scm:git:git@github.com:swagger-api/swagger-codegen.git</connection>
@@ -1046,11 +1046,11 @@
         </repository>
     </repositories>
     <properties>
-        <swagger-codegen-generators-version>1.0.26-SNAPSHOT</swagger-codegen-generators-version>
-        <swagger-core-version>2.1.4</swagger-core-version>
+        <swagger-codegen-generators-version>1.0.26</swagger-codegen-generators-version>
+        <swagger-core-version>2.1.9</swagger-core-version>
         <swagger-core-version-v1>1.6.2</swagger-core-version-v1>
-        <swagger-parser-version>2.0.23</swagger-parser-version>
-        <swagger-parser-version-v1>1.0.54</swagger-parser-version-v1>
+        <swagger-parser-version>2.0.26</swagger-parser-version>
+        <swagger-parser-version-v1>1.0.55</swagger-parser-version-v1>
         <jackson-version>2.11.4</jackson-version>
         <scala-version>2.11.1</scala-version>
         <felix-version>3.3.0</felix-version>
diff --git a/pom.xml.shippable b/pom.xml.shippable
index cbb9e5fc8ac..14669085802 100644
--- a/pom.xml.shippable
+++ b/pom.xml.shippable
@@ -9,7 +9,7 @@
     <artifactId>swagger-codegen-project</artifactId>
     <packaging>pom</packaging>
     <name>swagger-codegen-project</name>
-    <version>3.0.26-SNAPSHOT</version>
+    <version>3.0.26</version>
     <url>https://github.com/swagger-api/swagger-codegen</url>
     <scm>
         <connection>scm:git:git@github.com:swagger-api/swagger-codegen.git</connection>
@@ -1048,11 +1048,11 @@
         </repository>
     </repositories>
     <properties>
-        <swagger-codegen-generators-version>1.0.26-SNAPSHOT</swagger-codegen-generators-version>
-        <swagger-core-version>2.1.4</swagger-core-version>
+        <swagger-codegen-generators-version>1.0.26</swagger-codegen-generators-version>
+        <swagger-core-version>2.1.9</swagger-core-version>
         <swagger-core-version-v1>1.6.2</swagger-core-version-v1>
-        <swagger-parser-version>2.0.23</swagger-parser-version>
-        <swagger-parser-version-v1>1.0.54</swagger-parser-version-v1>
+        <swagger-parser-version>2.0.26</swagger-parser-version>
+        <swagger-parser-version-v1>1.0.55</swagger-parser-version-v1>
         <jackson-version>2.11.4</jackson-version>
         <scala-version>2.11.1</scala-version>
         <felix-version>3.3.0</felix-version>