After updating to Jenkins all builds stuck with the following records in logs. According to the changelog, I assume that the problem could be related to the following change - The minimum required Remoting version has been increased to 4.13.

 

[ecs-jenkins-sonar-scanner-dotnet-50fjd]: Waiting for agent to connect Sep 27, 2023 11:08:14 AM WARNING com.cloudbees.jenkins.plugins.amazonecs.ECSLauncher launch [ecs-jenkins-sonar-scanner-dotnet-50fjd]: Error in provisioning; agent=com.cloudbees.jenkins.plugins.amazonecs.ECSSlave[ecs-jenkins-sonar-scanner-dotnet-50fjd] Also:   java.lang.Throwable: launched here     at hudson.slaves.SlaveComputer._connect(SlaveComputer.java:286)     at hudson.model.Computer.connect(Computer.java:448)     at hudson.slaves.CloudRetentionStrategy.start(CloudRetentionStrategy.java:75)     at org.jenkinsci.plugins.durabletask.executors.OnceRetentionStrategy.start(OnceRetentionStrategy.java:83)     at org.jenkinsci.plugins.durabletask.executors.OnceRetentionStrategy.start(OnceRetentionStrategy.java:46)     at hudson.model.AbstractCIBase.createNewComputerForNode(AbstractCIBase.java:192)     at hudson.model.AbstractCIBase.updateNewComputer(AbstractCIBase.java:221)     at jenkins.model.Jenkins.updateNewComputer(Jenkins.java:1701)     at jenkins.model.Nodes.addNode(Nodes.java:144)     at jenkins.model.Jenkins.addNode(Jenkins.java:2259)     at hudson.slaves.NodeProvisioner.update(NodeProvisioner.java:248)     at hudson.slaves.NodeProvisioner$NodeProvisionerInvoker.doRun(NodeProvisioner.java:823)     at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:92)     at jenkins.security.ImpersonatingScheduledExecutorService$1.run(ImpersonatingScheduledExecutorService.java:67)     at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)     at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)     at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)     at java.base/java.lang.Thread.run(Thread.java:829) java.lang.IllegalStateException: Agent is not connected     at com.cloudbees.jenkins.plugins.amazonecs.ECSLauncher.waitForAgent(ECSLauncher.java:204)     at com.cloudbees.jenkins.plugins.amazonecs.ECSLauncher.launch(ECSLauncher.java:113)     at hudson.slaves.SlaveComputer.lambda$_connect$0(SlaveComputer.java:297)     at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)     at jenkins.security.ImpersonatingExecutorService$2.call(ImpersonatingExecutorService.java:80)     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)     at java.base/java.lang.Thread.run(Thread.java:829)