diff --git a/.ci/dev/compatibility/DockerfileJDK11 b/.ci/dev/compatibility/DockerfileJDK11
index 263c42a391..ff6eeaac95 100644
--- a/.ci/dev/compatibility/DockerfileJDK11
+++ b/.ci/dev/compatibility/DockerfileJDK11
@@ -1,4 +1,4 @@
-FROM azul/zulu-openjdk:11
+FROM azul/zulu-openjdk:11.0.14
 RUN apt-get update && apt-get install -y curl apt-transport-https \
                                               ca-certificates \
                                               curl \
diff --git a/.ci/dev/publish-branch/Jenkinsfile.nightly b/.ci/dev/publish-branch/Jenkinsfile.nightly
index b7b36f7eb8..0f38bf9cca 100644
--- a/.ci/dev/publish-branch/Jenkinsfile.nightly
+++ b/.ci/dev/publish-branch/Jenkinsfile.nightly
@@ -33,6 +33,18 @@ def nexusIqStageChoices = [nexusDefaultIqStage].plus(
                         'operate'
                 ].minus([nexusDefaultIqStage]))
 
+/**
+ * define an empty teamsWebHookURL and if it is a Release Branch
+ * then set it for the Corda 4 Jenkins Connector
+ */
+boolean isReleaseBranch = (env.BRANCH_NAME =~ /^release\/os\/.*/)
+def teamsWebHookURL = ""
+if (isReleaseBranch){
+    withCredentials([string(credentialsId: 'ms-teams-webhook', variable: 'webhook_url')]) {
+        teamsWebHookURL = "$webhook_url"
+    }
+}
+
 pipeline {
     agent { label 'standard' }
 
@@ -42,6 +54,18 @@ pipeline {
         overrideIndexTriggers(false)
         timeout(time: 3, unit: 'HOURS')
         buildDiscarder(logRotator(daysToKeepStr: '14', artifactDaysToKeepStr: '14'))
+        office365ConnectorWebhooks([[
+                                            name                 : "Corda 4 Jenkins Connector",
+                                            notifyBackToNormal   : true,
+                                            startNotification    : false,
+                                            notifyFailure        : true,
+                                            notifySuccess        : true,
+                                            notifyNotBuilt       : false,
+                                            notifyAborted        : false,
+                                            notifyRepeatedFailure: true,
+                                            notifyUnstable       : true,
+                                            url                  : "${teamsWebHookURL}"
+                                    ]])
     }
 
     parameters {
diff --git a/.ci/dev/regression/Jenkinsfile b/.ci/dev/regression/Jenkinsfile
index 96abe97cfa..e8543c7ab5 100644
--- a/.ci/dev/regression/Jenkinsfile
+++ b/.ci/dev/regression/Jenkinsfile
@@ -7,6 +7,7 @@
 /**
  * Sense environment
  */
+boolean isReleaseBranch = (env.BRANCH_NAME =~ /^release\/os\/.*/)
 boolean isReleaseTag = (env.TAG_NAME =~ /^release-.*(?<!_JDK11)$/)
 boolean isInternalRelease = (env.TAG_NAME =~ /^internal-release-.*$/)
 boolean isReleaseCandidate = (env.TAG_NAME =~ /^(release-.*(RC|HC).*(?<!_JDK11))$/)
@@ -39,6 +40,17 @@ def nexusIqStageChoices = [nexusDefaultIqStage].plus(
                         'operate'
                 ].minus([nexusDefaultIqStage]))
 
+/**
+ * define an empty teamsWebHookURL and if it is a Release Branch
+ * then set it for the Corda 4 Jenkins Connector
+ */
+def teamsWebHookURL = ""
+if (isReleaseBranch || isReleaseTag){
+    withCredentials([string(credentialsId: 'ms-teams-webhook', variable: 'webhook_url')]) {
+        teamsWebHookURL = "$webhook_url"
+    }
+}
+
 /**
  * Common Gradle arguments for all Gradle executions
  */
@@ -61,6 +73,18 @@ pipeline {
         parallelsAlwaysFailFast()
         timeout(time: 6, unit: 'HOURS')
         timestamps()
+        office365ConnectorWebhooks([[
+                                            name                 : "Corda 4 Jenkins Connector",
+                                            notifyBackToNormal   : true,
+                                            startNotification    : false,
+                                            notifyFailure        : true,
+                                            notifySuccess        : true,
+                                            notifyNotBuilt       : false,
+                                            notifyAborted        : false,
+                                            notifyRepeatedFailure: true,
+                                            notifyUnstable       : true,
+                                            url                  : "${teamsWebHookURL}"
+                                    ]])
     }
 
     parameters {