diff --git a/application/pom.xml b/application/pom.xml
index 4cbd9c3b64..b415ee08a6 100644
--- a/application/pom.xml
+++ b/application/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>application</artifactId>
diff --git a/common/actor/pom.xml b/common/actor/pom.xml
index 92b174ea61..4149fe2ad9 100644
--- a/common/actor/pom.xml
+++ b/common/actor/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/cache/pom.xml b/common/cache/pom.xml
index fcf52e01b7..6831156fde 100644
--- a/common/cache/pom.xml
+++ b/common/cache/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/cluster-api/pom.xml b/common/cluster-api/pom.xml
index 1f4b5ff41b..78ef7980e8 100644
--- a/common/cluster-api/pom.xml
+++ b/common/cluster-api/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/coap-server/pom.xml b/common/coap-server/pom.xml
index 27ff645a0f..b24fd98f5d 100644
--- a/common/coap-server/pom.xml
+++ b/common/coap-server/pom.xml
@@ -22,7 +22,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/dao-api/pom.xml b/common/dao-api/pom.xml
index 160351d55d..555b4a54bb 100644
--- a/common/dao-api/pom.xml
+++ b/common/dao-api/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/data/pom.xml b/common/data/pom.xml
index 779565ed8e..f27df3687f 100644
--- a/common/data/pom.xml
+++ b/common/data/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/discovery-api/pom.xml b/common/discovery-api/pom.xml
index 3ae12c1bdb..cb5238a664 100644
--- a/common/discovery-api/pom.xml
+++ b/common/discovery-api/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/edge-api/pom.xml b/common/edge-api/pom.xml
index 7c2967cf3d..2b7db0cbd3 100644
--- a/common/edge-api/pom.xml
+++ b/common/edge-api/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/edqs/pom.xml b/common/edqs/pom.xml
index f7616d5b37..cc5c5db14e 100644
--- a/common/edqs/pom.xml
+++ b/common/edqs/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/message/pom.xml b/common/message/pom.xml
index 757c5de251..c84a4fde2d 100644
--- a/common/message/pom.xml
+++ b/common/message/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/pom.xml b/common/pom.xml
index a9195e49d4..f45a2bdd28 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>common</artifactId>
diff --git a/common/proto/pom.xml b/common/proto/pom.xml
index 09f9596d0c..30d4b0bc68 100644
--- a/common/proto/pom.xml
+++ b/common/proto/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/queue/pom.xml b/common/queue/pom.xml
index ffee41f8a9..69adac81b4 100644
--- a/common/queue/pom.xml
+++ b/common/queue/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/script/pom.xml b/common/script/pom.xml
index d0a3b47218..ab5ac032c7 100644
--- a/common/script/pom.xml
+++ b/common/script/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/script/remote-js-client/pom.xml b/common/script/remote-js-client/pom.xml
index b1547d2e4b..1a3e00a88c 100644
--- a/common/script/remote-js-client/pom.xml
+++ b/common/script/remote-js-client/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>script</artifactId>
     </parent>
     <groupId>org.thingsboard.common.script</groupId>
diff --git a/common/script/script-api/pom.xml b/common/script/script-api/pom.xml
index b0fcf1c4ae..316f823a44 100644
--- a/common/script/script-api/pom.xml
+++ b/common/script/script-api/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>script</artifactId>
     </parent>
     <groupId>org.thingsboard.common.script</groupId>
diff --git a/common/stats/pom.xml b/common/stats/pom.xml
index e44e098a39..4bf24411dc 100644
--- a/common/stats/pom.xml
+++ b/common/stats/pom.xml
@@ -22,7 +22,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/transport/coap/pom.xml b/common/transport/coap/pom.xml
index 37f33470b2..be3c62c057 100644
--- a/common/transport/coap/pom.xml
+++ b/common/transport/coap/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.common.transport</groupId>
diff --git a/common/transport/http/pom.xml b/common/transport/http/pom.xml
index e49af5b0a2..a136079cb5 100644
--- a/common/transport/http/pom.xml
+++ b/common/transport/http/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.common.transport</groupId>
diff --git a/common/transport/lwm2m/pom.xml b/common/transport/lwm2m/pom.xml
index 1787c851cd..904e359bcc 100644
--- a/common/transport/lwm2m/pom.xml
+++ b/common/transport/lwm2m/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.common.transport</groupId>
diff --git a/common/transport/mqtt/pom.xml b/common/transport/mqtt/pom.xml
index 9df8cf918e..45f9b76af7 100644
--- a/common/transport/mqtt/pom.xml
+++ b/common/transport/mqtt/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.common.transport</groupId>
diff --git a/common/transport/pom.xml b/common/transport/pom.xml
index 3bd21c96de..f786bcdd0e 100644
--- a/common/transport/pom.xml
+++ b/common/transport/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/transport/snmp/pom.xml b/common/transport/snmp/pom.xml
index 1286073a5f..d3b2c46d69 100644
--- a/common/transport/snmp/pom.xml
+++ b/common/transport/snmp/pom.xml
@@ -21,7 +21,7 @@
 
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
 
diff --git a/common/transport/transport-api/pom.xml b/common/transport/transport-api/pom.xml
index 19b075cb61..a3fee460e1 100644
--- a/common/transport/transport-api/pom.xml
+++ b/common/transport/transport-api/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.common</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.common.transport</groupId>
diff --git a/common/util/pom.xml b/common/util/pom.xml
index 804ed0de38..ebedf5dea3 100644
--- a/common/util/pom.xml
+++ b/common/util/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/common/version-control/pom.xml b/common/version-control/pom.xml
index 58c059915c..b6a0ea1d2e 100644
--- a/common/version-control/pom.xml
+++ b/common/version-control/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>common</artifactId>
     </parent>
     <groupId>org.thingsboard.common</groupId>
diff --git a/dao/pom.xml b/dao/pom.xml
index fd6af62330..a1843959df 100644
--- a/dao/pom.xml
+++ b/dao/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>dao</artifactId>
diff --git a/edqs/pom.xml b/edqs/pom.xml
index 4a4c05be71..d648d9d786 100644
--- a/edqs/pom.xml
+++ b/edqs/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>edqs</artifactId>
diff --git a/monitoring/pom.xml b/monitoring/pom.xml
index 6dbcf85f07..77874c5ac9 100644
--- a/monitoring/pom.xml
+++ b/monitoring/pom.xml
@@ -21,7 +21,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
 
diff --git a/msa/black-box-tests/pom.xml b/msa/black-box-tests/pom.xml
index 358c524e06..fed33f0002 100644
--- a/msa/black-box-tests/pom.xml
+++ b/msa/black-box-tests/pom.xml
@@ -21,7 +21,7 @@
 
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/edqs/pom.xml b/msa/edqs/pom.xml
index 2dd4a9a584..c5be28e7bb 100644
--- a/msa/edqs/pom.xml
+++ b/msa/edqs/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/js-executor/pom.xml b/msa/js-executor/pom.xml
index 9730e7f33b..651b142160 100644
--- a/msa/js-executor/pom.xml
+++ b/msa/js-executor/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/monitoring/pom.xml b/msa/monitoring/pom.xml
index cb5b609e43..abd12ed9e0 100644
--- a/msa/monitoring/pom.xml
+++ b/msa/monitoring/pom.xml
@@ -22,7 +22,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
 
diff --git a/msa/pom.xml b/msa/pom.xml
index 7fbc5d3c02..6fcf7c3523 100644
--- a/msa/pom.xml
+++ b/msa/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>msa</artifactId>
diff --git a/msa/tb-node/pom.xml b/msa/tb-node/pom.xml
index 8df294260b..0103bf9352 100644
--- a/msa/tb-node/pom.xml
+++ b/msa/tb-node/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/tb/pom.xml b/msa/tb/pom.xml
index 1cbbf9d1ec..28e1366a73 100644
--- a/msa/tb/pom.xml
+++ b/msa/tb/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/transport/coap/pom.xml b/msa/transport/coap/pom.xml
index 256220078d..8aefc94122 100644
--- a/msa/transport/coap/pom.xml
+++ b/msa/transport/coap/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.msa</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.msa.transport</groupId>
diff --git a/msa/transport/http/pom.xml b/msa/transport/http/pom.xml
index 7e5871729d..a1481203de 100644
--- a/msa/transport/http/pom.xml
+++ b/msa/transport/http/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.msa</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.msa.transport</groupId>
diff --git a/msa/transport/lwm2m/pom.xml b/msa/transport/lwm2m/pom.xml
index ca6977eac6..7af2b16588 100644
--- a/msa/transport/lwm2m/pom.xml
+++ b/msa/transport/lwm2m/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.msa</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.msa.transport</groupId>
diff --git a/msa/transport/mqtt/pom.xml b/msa/transport/mqtt/pom.xml
index 172c4facb0..176dca19eb 100644
--- a/msa/transport/mqtt/pom.xml
+++ b/msa/transport/mqtt/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard.msa</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.msa.transport</groupId>
diff --git a/msa/transport/pom.xml b/msa/transport/pom.xml
index a6cff4fd0b..afbab0c450 100644
--- a/msa/transport/pom.xml
+++ b/msa/transport/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/transport/snmp/pom.xml b/msa/transport/snmp/pom.xml
index 79734822aa..553ed8bb37 100644
--- a/msa/transport/snmp/pom.xml
+++ b/msa/transport/snmp/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.thingsboard.msa</groupId>
         <artifactId>transport</artifactId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
     </parent>
 
     <groupId>org.thingsboard.msa.transport</groupId>
diff --git a/msa/vc-executor-docker/pom.xml b/msa/vc-executor-docker/pom.xml
index 85634d8688..d0a291e246 100644
--- a/msa/vc-executor-docker/pom.xml
+++ b/msa/vc-executor-docker/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/vc-executor/pom.xml b/msa/vc-executor/pom.xml
index 0acd863612..cf777c4c96 100644
--- a/msa/vc-executor/pom.xml
+++ b/msa/vc-executor/pom.xml
@@ -21,7 +21,7 @@
 
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/msa/web-ui/pom.xml b/msa/web-ui/pom.xml
index db7ed1424a..a56d0ca9d9 100644
--- a/msa/web-ui/pom.xml
+++ b/msa/web-ui/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>msa</artifactId>
     </parent>
     <groupId>org.thingsboard.msa</groupId>
diff --git a/netty-mqtt/pom.xml b/netty-mqtt/pom.xml
index a09d1e2409..08f2a55f4a 100644
--- a/netty-mqtt/pom.xml
+++ b/netty-mqtt/pom.xml
@@ -19,11 +19,11 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>netty-mqtt</artifactId>
-    <version>4.3.0-SNAPSHOT</version>
+    <version>4.2.1-RC</version>
     <packaging>jar</packaging>
 
     <name>Netty MQTT Client</name>
diff --git a/pom.xml b/pom.xml
index 1676e3b56c..1283dcc01c 100755
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.thingsboard</groupId>
     <artifactId>thingsboard</artifactId>
-    <version>4.3.0-SNAPSHOT</version>
+    <version>4.2.1-RC</version>
     <packaging>pom</packaging>
 
     <name>Thingsboard</name>
diff --git a/rest-client/pom.xml b/rest-client/pom.xml
index c3cf2460dd..e6e82da954 100644
--- a/rest-client/pom.xml
+++ b/rest-client/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>rest-client</artifactId>
diff --git a/rule-engine/pom.xml b/rule-engine/pom.xml
index 7abb7be3a3..8a9ad96d95 100644
--- a/rule-engine/pom.xml
+++ b/rule-engine/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>rule-engine</artifactId>
diff --git a/rule-engine/rule-engine-api/pom.xml b/rule-engine/rule-engine-api/pom.xml
index 59397d4a92..8f449a5e64 100644
--- a/rule-engine/rule-engine-api/pom.xml
+++ b/rule-engine/rule-engine-api/pom.xml
@@ -22,7 +22,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>rule-engine</artifactId>
     </parent>
     <groupId>org.thingsboard.rule-engine</groupId>
diff --git a/rule-engine/rule-engine-components/pom.xml b/rule-engine/rule-engine-components/pom.xml
index 98c7fde665..4fc5a55c5e 100644
--- a/rule-engine/rule-engine-components/pom.xml
+++ b/rule-engine/rule-engine-components/pom.xml
@@ -22,7 +22,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>rule-engine</artifactId>
     </parent>
     <groupId>org.thingsboard.rule-engine</groupId>
diff --git a/tools/pom.xml b/tools/pom.xml
index 0b63d84b0a..cce1466971 100644
--- a/tools/pom.xml
+++ b/tools/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>tools</artifactId>
diff --git a/transport/coap/pom.xml b/transport/coap/pom.xml
index 67f16917d3..8ae86d381f 100644
--- a/transport/coap/pom.xml
+++ b/transport/coap/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.transport</groupId>
diff --git a/transport/http/pom.xml b/transport/http/pom.xml
index 371ecb84ca..487e1de186 100644
--- a/transport/http/pom.xml
+++ b/transport/http/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.transport</groupId>
diff --git a/transport/lwm2m/pom.xml b/transport/lwm2m/pom.xml
index 66a3066a88..30effe6e42 100644
--- a/transport/lwm2m/pom.xml
+++ b/transport/lwm2m/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.transport</groupId>
diff --git a/transport/mqtt/pom.xml b/transport/mqtt/pom.xml
index 57a73b1bbe..a609e8d002 100644
--- a/transport/mqtt/pom.xml
+++ b/transport/mqtt/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
     <groupId>org.thingsboard.transport</groupId>
diff --git a/transport/pom.xml b/transport/pom.xml
index a8658bbf40..c6a82349f5 100644
--- a/transport/pom.xml
+++ b/transport/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <artifactId>transport</artifactId>
diff --git a/transport/snmp/pom.xml b/transport/snmp/pom.xml
index d5c3d1fe02..1894f09787 100644
--- a/transport/snmp/pom.xml
+++ b/transport/snmp/pom.xml
@@ -21,7 +21,7 @@
 
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>transport</artifactId>
     </parent>
 
diff --git a/ui-ngx/pom.xml b/ui-ngx/pom.xml
index 56fc4ed628..905a1a8aca 100644
--- a/ui-ngx/pom.xml
+++ b/ui-ngx/pom.xml
@@ -20,7 +20,7 @@
     <modelVersion>4.0.0</modelVersion>
     <parent>
         <groupId>org.thingsboard</groupId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-RC</version>
         <artifactId>thingsboard</artifactId>
     </parent>
     <groupId>org.thingsboard</groupId>