major enhancement 
enhancement
- 
major bug fix 
bug fix
-
-major enhancement enhancement
- major bug fix bug fix
-
-
= I use it on my production site without major issues. 
= I don't recommend it. 
= I tried it but rolled back to a previous version. Action could cause an entire REST export response to fail.
- Upgraded to Stapler 1.250 with a fix.
- (issue 40088)
- H is handled correctly in preview.
- (issue 26977)
- IllegalStateException from Winstone when making certain requests with access logging enabled.
- (issue 37625)
-hudson.model.ParametersAction.keepUndefinedParameters property is set to false.
- (pull 2687)
- JENKINS_HOME disk space threshold from 1Gb to 10Gb left.
- The warning will be shown only if more than 90% of the disk is utilized.
- (issue 40749)
- ClassNotFoundException: javax.servlet.ServletException error
- when invoking shell tasks on remote agents.
- (issue 40863)
- POST flag in ManagementLinks within the Manage Jenkins page.
- (issue 38175)
- Reload from disk management link.
- (pull 2692)
-Inject Build Variables flag was not set.
- (issue 39268)
- Errors and Exceptions.
- (issue 39835)
- hudson.slaves.ChannelPinger.pingIntervalSeconds and
- hudson.slaves.ChannelPinger.pingTimeoutSeconds
-
- system properties.
- (issue 28245)
- SlaveComputer instances when possible.
- (issue 40286)
- -noCertificateCheck warning to STDOUT.
- (pull 2666)
- Manage Jenkins page into admin monitor.
- (issue 39433)
- config.xml write operations.
- (issue 40435)
- Check for Updates button in the Plugin Manager was hidden in the Updates tab
- when there was no plugins updates available.
- (issue 39971)
- ProxyException now retains info about suppressed exceptions
- when serializing over the channel.
- (remoting pull #136)
- Jenkins#isSubjectToMandatoryReadPermissionCheck(String restOfPath) method
- for checking access permissions to particular paths.
- (issue 32797)
- Node#getNodeProperty() methods for retrieving node properties.
- (issue 40365)
- Items#allItems() methods for accessing items in item groups without sorting overhead.
- (issue 40252)
- KeepBuildForever.
- (issue 40281, regression in 2.34)
- QueueTaskDispatcher extension, NodeProperty and other extensions.
- (issue 38514)
- UserProperty.setUser(User).
- (issue 40266)
- Action retrieval methods.
- It speeds up core and plugin logic operating with Actionable objects like items, folders, nodes, etc.
- (issue 38867)
- 1.7 to 1.8.
- The change disables obsolete Ciphers: AES128CBC, TripleDESCBC, and BlowfishCBC.
- (issue 39805)
- 1.22 to 1.24.
- Full changelog is available here, only major issues are mentioned below.
- (pull 2619)
- killRecursive.
- It was likely impacting process termination on Windows agents.
- (WinP Issue #22)
-remoting.jar/slave.jar there.
- (pull 2633)
- FATAL: Invalid object ID 184 iuota=187 and java.lang.Exception: Object was recently deallocated.
- (issue 23271)
- hudson.showWindowsServiceInstallLink property from the slave-agent.jnlp file.
- It was causing harmless security warnings in Java web start.
- (issue 39883)
- 3.0.
- Upgraded to Remoting 3.1 with a fix.
- (issue 39596, regression in 2.26)
- NullPointerException when rendering CauseOfInterruption.UserInterruption
- in build summary pages for non-existent users.
- (issue 38721 and
- issue 37282,
- regression in 2.14)
- ResourceBundleUtil#getBundle().
- (issue 39604)
- ExtensionList.removeAll was not unimplemented in Jenkins extension management API.
- It was causing issues during dynamic loading of GitHub and BitBucket branch source plugins on the same instance.
- (issue 39520)
- hudson.remoting.Engine (mostly Java Web Start) was failing to establish connection
- if one of the URLs in urls parameter was malformed.
- (issue 39617)
- org.jenkinsci.remoting.nio.NioChannelHub.disabled flag
- for disabling NIO, mostly for debugging purposes.
- (issue 39290)
- IOHub concurrent thread number spikes.
- (issue 38692)
- Actionable initialization changes made for issue 39404).
- It caused massive regressions in plugins like Jenkins Pipeline.
- (issue 39555, regression in 2.29)
- 1.246 caused regressions in plugins depending on Ruby Runtime Plugin.
- Upgraded to Stapler 1.248 with a fix.
- (issue 39414, regression in 2.28)
- 2.16, a reconfiguration may be required.
- (issue 39465)
-- Warning! This release is not recommended for use due to - issue 39555 - and issue 39414. - We are working on the out-of-order release (discussion). -
-1.246 caused regressions in plugins depending on Ruby Runtime Plugin.
- Upgraded to Stapler 1.247 with a partial fix.
- (issue 39414, partial fix)
- onOnline() handler.
- (issue 38487)
- since tag.
- (Stapler pull #84)
-2.7.1 to 2.14.
- Changelog is available here.
- (pull 2606)
- 1.2-beta-4 to 1.6.
- Changelog is available here.
- (pull 2606))
- JNLPComputerLauncher (e.g. from Slave Setup, vSphere Cloud and other plugins).
- No the connection is accepted from launchers implementing other proxying and filtering Launcher implementations.
- Particular plugins may require setting up the
- jenkins.slaves.DefaultJnlpSlaveReceiver.disableStrictVerification system property in the master JVM to allow connecting agents.
- (issue 39232, regression in 2.28)
- hudson.XmlFile#readRaw() in the case of encoding issues.
- (issue 39363)
- LargeText.BufferSession.skip(), which was causing hanging of Pipeline jobs in corner cases.
- (issue 37664)
- 1.243 to 1.246 with fixes required for the Blue Ocean project.
- More details are coming soon.
- Raw changes are listed here.
- (pull 2593)
- 4.0-beta to 4.0.
- This change required upgrade of detached plugins (see above).
- (pull 2568)
-slave.jar now explicitly require Java 7.
- (issue 37565)
- ResourceBundleUtil.
- It fixes internationalization in Blue Ocean
- and Jenkins Design Language.
- (issue 35845)
- TopLevelItemDescriptor#getIconFilePathPattern() and switch to IconSpec.
- (issue 38960)
-CommandInterpreter build steps to set a build result as Unstable via the return code.
- Shell and Batch build steps now support this feature.
- (issue 23786)
- MaskingClassloader.
- (issue 23784)
- XStream driver to improve performance of XML serialization/deserialization.
- (pull 2561)
- -noKeepAlive option.
- (issue 38539)
- NullPointerException in Engine#connect()
- when host or port parameters are null or empty.
- (issue 37539)
- hpi:record-core-location during the build in order to enabled coordinated run across repositories.
- (pull 1894)
- @since definitions in Javadoc.
- (pull 2578)
-jenkins.model.Jenkins.slaveAgentPortEnforce system property, which prevents slave agent port modification via Jenkins Web UI and form submissions.
- (PR #2545)
- jenkins.model.Jenkins on agents in the ProcessKillingVeto extension point.
- (issue 38534)
- jenkins.model.Jenkins.slaveAgentPort system property, which was not honored.
- (issue 38187, regression in 2.0)
- java.io.StreamCorruptedException: invalid stream header: 0A0A0A0A.
- (issue 23232)
- userContent/readme.txt.
- (PR #2532)
- UpdateSite#getJsonSignatureValidator() can be now
- overridden and used in plugins.
- (PR #2532)
-Cloud.PROVISION permission independent from Jenkins.ADMINISTER.
- (issue 37616)
- null CRON specifications in build triggers.
- (issue 36748, enhances fix in 2.15)
- ComboBoxList element in order to make options visible.
- (issue 37549)
- AntClassLoader being used in the core.
- (issue 37561)
- jenkins.install.InstallUtil.lastExecVersion file
- in JENKINS_HOME.
- (issue 37438)
- IllegalStateException.
- (issue 33549)
- Queue#maintain() message for dead executors during task mapping
- from INFO to FINE.
- (PR #2510)
-ChangeLogAnnotator API usage in plugins.
- Enhances JENKINS-23365 fix in 1.569.
- (issue 36757)
- onClose() listener writes to the already closed log.
- (issue 37098)
- jenkins.slaves.JnlpSlaveAgentProtocol3.enabled
- system property.
- (issue 37315)
- ?uctest parameter to HTTP and HTTPS URLs only.
- (issue 37189)
- SCM Retry Count field is empty.
- (issue 36387)
- NullPointerException in the BlockedBecauseOfBuildInProgress build blockage cause visualization.
- (issue 36592)
- quiet-down and cancel-quiet-down were extracted from the core to CLI.
- (issue 35423)
- ComputerSet#getComputerNames() method.
- (issue 35423)
- ItemCategory#MIN_TOSHOW in external plugins is now restricted.
- (issue 36593)
-IllegalStateException under certain conditions when reloading configuration from disk while jobs are in the queue.
- (issue 27530)
- DescriptorVisibilityFilters for ComputerLauncher, RetentionStrategy and NodeProperty.
- (issue 36280)
- NullPointerException during SCM polling if SCMDecisionHandler returns null veto.
- (issue 36232, regression in 2.11)
- SCMDescriptor.newInstance overrides are honored when creating new SCM entries.
- (issue 36043,
- issue 35906
- , regression in 2.10)
- BUILD_TAG environment variable description to mention the replacement of slashes with dashes.
- (PR #2417)
- BulkChange auto-closeable.
- (PR #2428)
-SecurityRealm returns null when loading a user.
- (PR #2407)
- NullPointerException in user registration if user ID is not specified.
- (issue 33600)
- no_proxy environment variable.
- (issue 32326)
- hudson.Remoting.Engine#waitForServerToBack now uses credentials for connection.
- (issue 31256)
- TaskListener creation to build agent implementations.
- (issue 34923)
- UpdateSites to tweak the InstallationJob.
- (issue 35402)
-NullPointerException on startup after update from Jenkins 2.5.
- (issue 35206)
- hudson.model.Run or hudson.model.Job).
- Regression in Groovy 2.4,
- see GROOVY-7826 for more info.
- (issue 34751)
- PingFailureAnalyzer for agent=>master ping failures.
- (issue 35190)
- DelegatingComputerLauncher now accepts child classes in its hooks
- (pre-offline, pre-connect, etc.).
- (issue 35198)
- SystemInfoLink.
- (PR #2375)
- InstallState and InstallStateFilter extension points.
- (PR 2281 as supplementary change for
- issue 33663)
- ParametersAction.
- It simplifies fixing of plugins affected by SECURITY-170 fix.
- (PR 2353)
- ParametersDefinition and BuildDiscarder properties.
- (PR 2358)
- online-node CLI command for accepting multiple agents.
- (issue 34531)
- connect-node was extracted from the core to CLI.
- (issue 31417)
-Jenkins.getInstance() returns null instance.
- It was causing failures on Jenkins agents in the case of unexpected API usage by agents.
- (issue 34857, regression in 2.4)
- jenkins.model.Jenkins.disableExceptionOnNullInstance by
- jenkins.model.Jenkins.enableExceptionOnNullInstance to address the
- behavior change.
- (issue 34857)
-jenkins-ui (NPM module) is private, used only internally.
- (issue 34629)
- AbortExceptions.
- (pull 2288)
- hudson.model.UpdateCenter.defaultUpdateSiteId system property,
- which allows specifying an alternate default Update Site ID.
- (issue 34674)
- context.xml and web.xml
- in addition to setting system properties from the command line.
- (issue 34755)
- UpdateCenter by a custom implementation.
- (issue 34733)
- PluginManager by a custom implementation.
- (issue 34681)
- PeriodicWork if update site certificate is missing.
- (issue 34745)
- Downloadable items on restart if all update centers are up to date.
- (issue 32886)
- AbstractProject (e.g. Pipeline) jobs from CLI.
- (issue 28071)
- NoSuchMethodException in loginLink.jelly
- when attempting to start a job using REST API.
- (issue 31618)
- ToolInstallers to follow HTTP 30x redirects.
- (issue 23507)
- NullPointerException in the parameter definition job property
- if it gets initialized incorrectly.
- (issue 34370)
- Font Awesome and Google Fonts: Roboto dependencies
- to prevent failures in the offline mode.
- (issue 34628)
- disconnect-node and reload-configuration were extracted from the core to CLI.
- (issue 34328 and
- issue 31900)
- Jenkins.getInstance() to @Nonnull.
- (new system property)
- (pull 2297)
- -Older changelogs can be found in a separate file - - - +--> \ No newline at end of file