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changelog.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!--
We record noteworthy changes in this file, which then becomes http://jenkins-ci.org/changelog
Some tips:
- Record your changes between "TRUNK-BEGIN" and "TRUNK-END".
(except in rare cases when you are making changes in the RC branch,
in which case it goes to the rc section)
- There are four CSS classes to denote the kind of changes.
"rfe" for enhancement and "bug" for bug fixes,
plus "major" to indicate major RFE/bugfix.
- Link to bugs in the issue tracker, e-mail thread in the archive, and so on if you can.
-->
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>Changelog</title>
<link rel="stylesheet" TYPE="text/css" href="/changelog.css">
<!--[if IE]>
<style type="text/css">div.rate-offset { bottom: 0.2em !important; left: 5em !important; }</style>
<![endif]-->
<script type="text/javascript" src="https://rating.jenkins.io/rate/rate.js"></script>
</head>
<body>
<div align="right">Legend:
<span class="iconlegend">
<img src="/images/rfe2.gif" alt="major RFE">major enhancement <img src="/images/rfe.gif" alt="RFE">enhancement
<img src="/images/bug2.gif" alt="major bug">major bug fix <img src="/images/bug.gif" alt="bug">bug fix
</span><span style="visibility:hidden">xxxxx</span>
</div>
<div id="head"></div>
<div id="ratings" style="display:none; font-size:120%;
border:1px solid black; background-color:#eee; padding:0.5em; margin-bottom:1em">
Help other Jenkins users by letting the community know which releases you've used,
and whether they had any significant issues. <br>
Legend: <br>
<img src="//ci.jenkins-ci.org/images/16x16/health-80plus.gif" width="16" height="16"
alt="Sunny"> = I use it on my production site without major issues. <br>
<img src="//ci.jenkins-ci.org/images/16x16/health-40to59.gif" width="16" height="16"
alt="Cloudy"> = I don't recommend it. <br>
<img src="//ci.jenkins-ci.org/images/16x16/health-00to19.gif" width="16" height="16"
alt="Lightning"> = I tried it but rolled back to a previous version. <br>
View ratings below, and click one of the icons next to your version to provide your input.
</div>
<a href="" onClick="document.getElementById('trunk').style.display='block';return false">
Upcoming changes</a>
<a href="" style="padding-left:3em" onClick="return loaddata(this)">Community ratings</a>
<!-- Record your changes in the trunk here. -->
<div id="trunk" style="display:none"><!--=TRUNK-BEGIN=-->
<ul class=image>
<li class=>
</ul>
</div><!--=TRUNK-END=-->
<h3><a name=v2.14>What's new in 2.14</a> (2016/07/17)</h3>
<ul class=image>
<li class=rfe>
Minor optimization in calculation of recent build stability health report.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36629">issue 36629</a>)
<li class=bug>
Underprivileged users were unable to use the default value of a password parameter.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36476">issue 36476</a>)
<li class=bug>
Allow keeping builds forever with custom build retention strategies.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-26438">issue 26438</a>)
<li class=bug>
Properly handle exceptions during global configuration form submissions when <code>SCM Retry Count</code> field is empty.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36387">issue 36387</a>)
<li class=bug>
When a user aborts the build, this user may be restored after its deletion.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36594">issue 36594</a>)
<li class=bug>
Prevent potential <code>NullPointerException</code> in the <code>BlockedBecauseOfBuildInProgress</code> build blockage cause visualization.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36592">issue 36592</a>)
<li class=rfe>
CLI commands <code>quiet-down</code> and <code>cancel-quiet-down</code> were extracted from the core to CLI.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35423">issue 35423</a>)
<li class=rfe>
Developer API: Extract listing of computer names to the <code>ComputerSet#getComputerNames()</code> method.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35423">issue 35423</a>)
<li class=rfe>
Developer API: Add a try with resources form of impersonation.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36494">issue 36494</a>)
<li class=bug>
Developer API: Usage of <code>ItemCategory#MIN_TOSHOW</code> in external plugins is now restricted.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36593">issue 36593</a>)
</ul>
<h3><a name=v2.13>What's new in 2.13</a> (2016/07/10)</h3>
<ul class=image>
<li class=bug>
<code>IllegalStateException</code> under certain conditions when reloading configuration from disk while jobs are in the queue.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-27530">issue 27530</a>)
<li class=rfe>
Eliminate “dead executor” UI appearing after certain errors, such as JENKINS-27530.
(<a href="https://github.com/jenkinsci/jenkins/pull/2440">PR 2440</a>)
<li class=bug>
Make setup wizard installation panel usable on small screens.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34668">issue 34668</a>)
</ul>
<h3><a name=v2.12>What's new in 2.12</a> (2016/07/05)</h3>
<ul class=image>
<li class=rfe>
Enable the <code>DescriptorVisibilityFilter</code>s for ComputerLauncher, RetentionStrategy and NodeProperty.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36280">issue 36280</a>)
<li class=rfe>
Before starting a process, ensure that its working directory exists.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36277">issue 36277</a>)
<li class=bug>
Prevent <code>NullPointerException</code> during SCM polling if <code>SCMDecisionHandler</code> returns <code>null</code> veto.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36232">issue 36232</a>, regression in 2.11)
<li class=bug>
Ensure that <code>SCMDescriptor.newInstance</code> overrides are honored when creating new SCM entries.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36043">issue 36043</a>,
<a href="https://issues.jenkins-ci.org/browse/JENKINS-35906">issue 35906</a>
, regression in 2.10)
<li class=bug>
Performance: Improve configuration page load times by removing the CodeMirror reloading cycle.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32027">issue 32027</a>)
<li class=bug>
Fix optional plugin dependency version resolution.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-21486">issue 21486</a>)
<li class=bug>
When creating a tar file, ensure that the final size does not exceed the value
in header in the case of growing files.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-20187">Issue 20187</a>)
<li class=bug>
Do not inject build variables into Maven process by default for new projects.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-25416">issue 25416</a>,
<a href="https://issues.jenkins-ci.org/browse/JENKINS-28790">issue 28790</a>)
<li class=rfe>
Update <code>BUILD_TAG</code> environment variable description to mention the replacement of slashes with dashes.
(<a href="https://github.com/jenkinsci/jenkins/pull/2417">PR #2417</a>)
<li class=rfe>
Internal API: Make <code>BulkChange</code> auto-closeable.
(<a href="https://github.com/jenkinsci/jenkins/pull/2428">PR #2428</a>)
</ul>
<h3><a name=v2.11>What's new in 2.11</a> (2016/06/26)</h3>
<ul class=image>
<li class=rfe>
Provide an extension point for SCM decisions such as whether to poll a specific job's backing
repository for changes.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36123">issue 36123</a>)
</ul>
<h3><a name=v2.10>What's new in 2.10</a> (2016/06/19)</h3>
<ul class=image>
<li class=rfe>
Better exception message if a <code>SecurityRealm</code> returns null when loading a user.
(<a href="https://github.com/jenkinsci/jenkins/pull/2407">PR #2407</a>)
<li class=bug>
Prevent <code>NullPointerException</code> in user registration if user ID is not specified.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33600">issue 33600</a>)
<li class=bug>
Internal: It was impossible to build Jenkins on 32-bit Linux machine.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-36052">issue 36052, regression from 2.0</a>)
</ul>
<h3><a name=v2.9>What's new in 2.9</a> (2016/06/13)</h3>
<ul class=image>
<li class=bug>
Always send usage statistics over HTTPs to the new usage.jenkins.io hostname.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35641">issue 35641</a>)
<li class=bug>
Performance: Disable AutoBrowserHolder by default to improve the changelog rendering performance.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35098">issue 35098</a>)
<li class=bug>
Remoting 2.60: Make the channel reader tolerant against Socket timeouts.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-22722">issue 22722</a>)
<li class=bug>
Remoting 2.60: Proper handling of the <code>no_proxy</code> environment variable.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32326">issue 32326</a>)
<li class=bug>
Remoting 2.60: Do not invoke PingFailureAnalyzer for agent=>master ping failures.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35190">issue 35190</a>)
<li class=bug>
Remoting 2.60: <code>hudson.Remoting.Engine#waitForServerToBack</code> now uses credentials for connection.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31256">issue 31256</a>)
<li class=bug>
Remoting 2.60: Fix potential file handle leaks during the build agent (FKA slave) startup.
<a href="https://issues.jenkins-ci.org/browse/JENKINS-35190">issue 35190</a>)
<li class=rfe>
Internal: Upgrade Groovy to 2.4.7 to finalize the fix in Jenkins 2.7.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34751">issue 34751</a>)
<li class=rfe>
API: Allow delegating <code>TaskListener</code> creation to build agent implementations.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34923">issue 34923</a>)
<li class=rfe>
API: Restrict external usages of </code>jenkins.util.ResourceBundleUtil</code>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35381">issue 35381</a>)
<li class=rfe>
API: Make it easier for <code>UpdateSite</code>s to tweak the </code>InstallationJob</code>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35402">issue 35402</a>)
</ul>
<h3><a name=v2.8>What's new in 2.8</a> (2016/06/05)</h3>
<ul class=image>
<li class=bug>
Explicitly declare compatibility of Windows build agent service with .NET Framework 4.
(<a href="https://github.com/jenkinsci/jenkins/pull/2386">PR #2386</a>)
<li class=rfe>
API: Introduce new listener extension point for slave creation/update/deletion.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33780">issue 33780</a>)
<li class=rfe>
Lossless optimization sizes of PNG images in Jenkins.
(<a href="https://github.com/jenkinsci/jenkins/pull/2379">PR #2379</a>)
<li class=bug>
Fix the repeatable item delete button layout in Safari.
Addresses Build Steps and other such configuration items.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35178">issue 35178</a>)
<li class=bug>
Installation Wizard: Do not offer creating new admin user if the security is preconfigured.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34881">issue 34881</a>)
<li class=bug>
Prevent <code>NullPointerException</code> on startup after update from Jenkins 2.5.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35206">issue 35206</a>)
<li class=bug>
Honor noProxy settings from "Manage Jenkins > Manage Plugins > Advanced".
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31915">issue 31915</a>)
<li class=rfe>
Add <a href="http://hc.apache.org/httpclient-3.x/authentication.html#NTLM">NTLM support</a>
to the proxy validation logic.
(<a href="https://github.com/jenkinsci/jenkins/pull/1955">PR #1955</a>)
</ul>
<h3><a name=v2.7>What's new in 2.7</a> (2016/05/29)</h3>
<ul class=image>
<li class="bug">
Prevent stack overflow when using classes with complex generic type arguments
(e.g. <code>hudson.model.Run</code> or <code>hudson.model.Job</code>).
Regression in Groovy 2.4,
see <a href="https://issues.apache.org/jira/browse/GROOVY-7826">GROOVY-7826</a> for more info.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34751">issue 34751</a>)
<li class="bug">
Do not invoke <code>PingFailureAnalyzer</code> for agent=>master ping failures.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35190">issue 35190</a>)
<li class="bug">
Fix keyboard navigation in setup wizard.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33947">issue 33947</a>)
<li class="bug">
Cleanup of Javascript issues discovered by the JSHint static analyis tool.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35020">issue 35020</a>)
<li class="bug">
<code>DelegatingComputerLauncher</code> now accepts child classes in its hooks
(pre-offline, pre-connect, etc.).
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35198">issue 35198</a>)
<li class="rfe">
Internal: Activate JSHint in Jenkins js-builder component during the core build.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34438">issue 34438</a>)
<li class="rfe">
Internal: Add symbol annotation for <code>SystemInfoLink</code>.
(<a href="https://github.com/jenkinsci/jenkins/pull/2375">PR #2375</a>)
<li class="bug">
Internal: NodeJS build was malfunctional on Win x64.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-35201">issue 35201</a>)
</ul>
<h3><a name=v2.6>What's new in 2.6</a> (2016/05/22)</h3>
<ul class=image>
<li class="major rfe">
Adapt the Setup Wizard GUI to provide a similar user experience when upgrading Jenkins.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33663">issue 33663</a>)
<!--TODO: add a links to the Extension points when Wiki get's updated-->
<li class="rfe">
Improve extensibility of the Setup Wizard GUI:
<code>InstallState</code> and <code>InstallStateFilter</code> extension points.
(<a href="https://github.com/jenkinsci/jenkins/pull/2281">PR 2281</a> as supplimentary change for
<a href="https://issues.jenkins-ci.org/browse/JENKINS-33663">issue 33663</a>)
<li class="rfe">
Improve User Experience in the New Item form. Submit button is always visible.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34244">issue 34244</a>)
<li class="rfe">
Allow passing a list of safe job parameters in <code>ParametersAction</code>.
It simplifies fixing of <a href="https://wiki.jenkins-ci.org/display/JENKINS/Plugins+affected+by+fix+for+SECURITY-170">plugins affected by SECURITY-170 fix</a>.
(<a href="https://github.com/jenkinsci/jenkins/pull/2353">PR 2353</a>)
<li class="rfe">
Added Symbol annotations for
<code>ParametersDefinition</code> and <code>BuildDiscarder</code> properties.
(<a href="https://github.com/jenkinsci/jenkins/pull/2358">PR 2358</a>)
<li class="rfe">
Extended the <code>online-node</code> CLI command for accepting multiple agents.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34531">issue 34531</a>)
<li class="bug">
Listed Parameters should reflect what was used when the build ran (filtering of unsafe parameters).
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34858">issue 34858</a>)
<li class="bug">
Scalability: Fix performance issues in the XML unmarshalling code.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34888">issue 34888</a>)
<li class="bug">
Support the legacy icon size specification approach in the Status Ball visualization.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-25220">issue 25220</a>, regression in 1.586)
<li class="bug">
Migrate the leftover system properties to the new engine introduced in 2.4.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34854">issue 34854</a>)
<li class="bug">
Do not show warnings abot a missing Tool Installer if it is present in at least one Update Site.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34880">issue 34880</a>)
<li class="bug">
Prevent hanging of the installation wizard due to the plugin status update issue.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34708">issue 34708</a>)
<li class="rfe">
Internal: CLI command <code>connect-node</code> was extracted from the core to CLI.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31417">issue 31417</a>)
</ul>
<h3><a name=v2.5>What's new in 2.5</a> (2016/05/16)</h3>
<ul class=image>
<li class="major bug">
Do not throw exceptions if <code>Jenkins.getInstance()</code> returns <code>null</code> instance.
It was causing failures on Jenkins agents in the case of unexpected API usage by agents.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34857">issue 34857</a>, regression in 2.4)
<li class=rfe>
Replace <code>jenkins.model.Jenkins.disableExceptionOnNullInstance</code> by
<code>jenkins.model.Jenkins.enableExceptionOnNullInstance</code> to address the
behavior change.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34857">issue 34857</a>)
</ul>
<h3><a name=v2.4>What's new in 2.4</a> (2016/05/15)</h3>
<ul class=image>
<li class=rfe>
Internal/build: <code>jenkins-ui</code> (NPM module) is private, used only internally.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34629">issue 34629</a>)
<li class=rfe>
Do not print stack trace during a plugin installation if it is missing its dependencies.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34683">issue 34683</a>)
<li class=rfe>
Allow specifying custom <code>AbortException</code>s.
(<a href="https://github.com/jenkinsci/jenkins/pull/2288">pull 2288</a>)
<li class=rfe>
Add a <code>hudson.model.UpdateCenter.defaultUpdateSiteId</code> system property,
which allows specifying an alternate default Update Site ID.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34674">issue 34674</a>)
<li class=rfe>
Allow setting of properties from <code>context.xml</code> and <code>web.xml</code>
in addition to setting system properties from the command line.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34755">issue 34755</a>)
<li class=rfe>
Remove the historical initialization of CVS changelog parser for jobs without explicit SCM definition.
<b>Warning!</b> This change may potentially cause a regression if a Jenkins plugin depends on this default behavior and injects changelogs without SCM.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-4610">issue 4610</a>)
<li class=rfe>
Add the JOB_BASE_NAME environment variable to builds (job name without path).
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-25164">issue 25164</a>)
<li class=rfe>
Allow overriding Jenkins <code>UpdateCenter</code> by a custom implementation.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34733">issue 34733</a>)
<li class=rfe>
Allow overriding Jenkins <code>PluginManager</code> by a custom implementation.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34681">issue 34681</a>)
<li class=rfe>
Installation Wizard: Allow altering the list of suggested plugins from update sites.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34833">issue 34833</a>)
<li class=bug>
Prevent hanging of the Installation Wizard if the default Update Site ID cannot be resolved.
In such case an error message will be displayed.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34675">issue 34675</a>)
<li class=bug>
Prevent hanging of the Installation Wizard if the internet check is skipped for the default update site.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34705">issue 34705</a>)
<li class=bug>
Do not fail with error when enabling a plugin, which has been already enabled.
It prevents errors in the new Installation Wizard, which installs plugins in parallel.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34710">issue 34710</a>)
<li class=bug>
Plugin Manager was building incorrect list of bundled plugins for nested dependencies.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34748">issue 34748</a>)
<li class=bug>
Prevent fatal failure of the updates check <code>PeriodicWork</code> if update site certificate is missing.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34745">issue 34745</a>)
<li class=bug>
Pick up missing <code>Downloadable</code> items on restart if all update centers are up to date.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32886">issue 32886</a>)
<li class=bug>
Allow starting non-<code>AbstractProject</code> (e.g. Pipeline) jobs from CLI.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-28071">issue 28071</a>)
<li class=bug>
Disable JSESSIONID in URLs when running in the JBoss web container.
It prevents Error 404 due to invalid links starting from Jenkins 1.556.
More info: <a href="https://issues.jboss.org/browse/WFLY-4782">WFLY-4782</a>
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34675">issue 34675</a>)
<li class=bug>
Prevent RSS ID collisions for items with same name in different folders.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34767">issue 34767</a>)
<li class=bug>
Prevent <code>NoSuchMethodException</code> in <code>loginLink.jelly</code>
when attempting to start a job using REST API.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31618">issue 31618</a>)
<li class=bug>
Make <code>ToolInstallers</code> to follow HTTP 30x redirects.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-23507">issue 23507</a>)
<li class=bug>
Prevent <code>NullPointerException</code> in the parameter definition job property
if it gets initialized incorrectly.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34370">issue 34370</a>)
<li class=bug>
Bundle <code>Font Awesome</code> and <code>Google Fonts: Roboto</code> dependencies
to prevent failures in the offline mode.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34628">issue 34628</a>)
<li class=rfe>
Internal: CLI commands <code>disconnect-node</code> and <code>reload-configuration</code> were extracted from the core to CLI.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34328">issue 34328</a> and
<a href="https://issues.jenkins-ci.org/browse/JENKINS-31900">issue 31900</a>)
<li class=rfe>
Internal: Support latest source version to avoid compile time warnings with JDK7.
<a href="https://github.com/jenkinsci/lib-annotation-indexer">annotation-indexer</a> and
<a href="https://github.com/jglick/sezpoz">sezpoz</a> have been updated to 1.11.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32978">issue 32978</a>)
<li class=rfe>
Developer API: Switch <code>Jenkins.getInstance()</code> to <code>@Nonnull</code>.
(new <a href="https://wiki.jenkins-ci.org/display/JENKINS/Features+controlled+by+system+properties">system property</a>)
(<a href="https://github.com/jenkinsci/jenkins/pull/2297">pull 2297</a>)
<li class=bug>
Remoting, scalability: Ensure that the unexporter cleans up whatever it can each GC sweep.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34213">issue 34213</a>)
<li class=bug>
Remoting: Force class load on UserRequest to prevent deadlocks on Windows nodes agents in the case of multiple classloaders.
(Controlled by <a href="https://wiki.jenkins-ci.org/display/JENKINS/Features+controlled+by+system+properties">hudson.remoting.RemoteClassLoader.force</a>)
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-19445">issue 19445</a>)
<li class=rfe>
Remoting: Allow Jenkins admins to adjust the socket timeout.
(Controlled by <a href="https://wiki.jenkins-ci.org/display/JENKINS/Features+controlled+by+system+properties">hudson.remoting.Engine.socketTimeout</a>)
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34808">issue 34808</a>)
<li class=rfe>
Remoting: Allow disabling the remoting protocols individually.
Allows working around compatibility issues like
<a href="https://issues.jenkins-ci.org/browse/JENKINS-34121">JENKINS-34121</a>.
(Controlled by <a href="https://wiki.jenkins-ci.org/display/JENKINS/Features+controlled+by+system+properties">PROTOCOL_CLASS_NAME.disabled</a>)
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34819">issue 34819</a>)
</ul>
<h3><a name=v2.3>What's new in 2.3</a> (2016/05/11)</h3>
<ul class=image>
<li class="major bug">
<strong>Important security fixes</strong>
(see the <a href="https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-05-11">security advisory</a> for details and plugin compatibility issues)
</ul>
<h3><a name=v2.2>What's new in 2.2</a> (2016/05/08)</h3>
<ul class=image>
<li class="rfe">
Add symbol annotations on core.
(<a href="https://github.com/jenkinsci/jenkins/pull/2293">pull 2293</a>)
<li class=rfe>
Upgrade Stapler to 1.243.
(<a href="https://github.com/jenkinsci/jenkins/pull/2298">pull 2298</a>)
<li class=rfe>
Internal/build: Enable JSHint during build.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34438">issue 34438</a>)
<li class=rfe>
Workaround for unpredictable Windows file locking.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-15331">issue 15331</a>)
<li class="rfe">
Improved Lithuanian translation.
(<a href="https://github.com/jenkinsci/jenkins/pull/2309">pull 2309</a>)
<li class="rfe">
Improved French translation.
(<a href="https://github.com/jenkinsci/jenkins/pull/2308">pull 2308</a>)
<li class="rfe">
Restrict access to URLs related to plugin manager.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31611">issue 31611</a>)
<li class=rfe>
API: New <tt>HttpSessionListener</tt> extension point.
(<a href="https://github.com/jenkinsci/jenkins/pull/2303">pull 2303</a>)
<li class=bug>
Don't go through init sequence twice.
(<a href="https://github.com/jenkinsci/jenkins/pull/2177">pull 2177</a>)
<li class=bug>
Create Item form can be navigated using keyboard again.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33822">issue 33822</a>)
<li class="rfe">
Fix inline help for node name field.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34601">issue 34601</a>)
</ul>
<h3><a name=v2.1>What's new in 2.1</a> (2016/05/01)</h3>
<ul class=image>
<li class="major bug">
Enable disabled dependencies during plugin installations.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34494">issue 34494</a>)
<li class="major bug">
Force ordering between GPG and jarsigner to ensure correct GPG signature.
(<a href="https://github.com/jenkinsci/jenkins/pull/2285">pull 2285</a>)
<li class="major bug">
Secured Jenkins installations didn't properly save the queue on shutdown.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34281">issue 34281</a>)
<li class="rfe">
Add dependency resolution to manually uploaded plugins.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-15057">issue 15057</a>)
<li class="rfe">
Show Jenkins version on setup wizard.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33535">issue 33535</a>)
<li class="rfe">
Update remoting to 2.57.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33999">issue 33999</a>)
<li class="rfe">
Allow retrying plugin downloads in setup wizard.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33244">issue 33244</a>)
<li class="rfe">
Add links to homepage of plugins and dependencies in setup wizard.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33936">issue 33936</a>,
<a href="https://issues.jenkins-ci.org/browse/JENKINS-33937">issue 33937</a>)
<li class="rfe">
Improved handling of the 'close' button during setup wizard.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34137">issue 34137</a>)
<li class="rfe">
Wrong spacing in flat mode of 'Create Item' screen.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31162">issue 31162</a>)
<li class="rfe">
Add timestamp to the <tt>jarsigner</tt> signature.
(<a href="https://github.com/jenkinsci/jenkins/pull/2284">pull 2284</a>)
<li class="rfe">
Improved French translation.
(<a href="https://github.com/jenkinsci/jenkins/pull/2267">pull 2267</a>)
<li class="rfe">
Improved Lithuanian translation.
(<a href="https://github.com/jenkinsci/jenkins/pull/2286">pull 2286</a>)
<li class="rfe">
Improved Brazilian Portuguese translation.
(<a href="https://github.com/jenkinsci/jenkins/pull/2273">pull 2273</a>)
<li class="bug">
Prevent errors when hiding management links.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33683">issue 33683</a>)
<li class="bug">
Internal: Make logger field private.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34093">issue 34093</a>)
<li class="bug">
Shorter timeout for plugin downloads to prevent setup wizard from hanging.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34174">issue 34174</a>)
<li class="bug">
Check if job is buildable before showing 'Build with parameters' page.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34146">issue 34146</a>)
<li class="bug">
Fixed race condition in slave offline cause.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-34448">issue 34448</a>)
<li class="bug">
Allow enabling disabled dependencies in the plugin manager to fix broken configurations.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32340">issue 32340</a>)
<li class="bug">
Always display clicked scrollspy items as active in setup wizard.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33948">issue 33948</a>)
<li class="bug">
Prevent multiple installations of the same dependency.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33950">issue 33950</a>)
</ul>
<h3><a name=v2.0>What's new in 2.0</a> (2016/04/20)</h3>
<div style="margin: 10px; padding: 10px; background-color: #FFFFCE;">
<strong>More detailed information about the new features in Jenkins 2.0 <a href="/2.0/">on the overview page</a>.</strong>
</div>
<ul class=image>
<li class="rfe major">
New password-protected setup wizard shown on first run to guide users through installation of popular plugins and setting up an admin user.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30749">issue 30749</a>,
<a href="https://issues.jenkins-ci.org/browse/JENKINS-9598">issue 9598</a>)
<li class="rfe major">
Plugin bundling overhaul: Bundled plugins are only installed if necessary when upgrading, all plugins can be uninstalled.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-20617">issue 20617</a>)
<li class="rfe major">
Redesigned job configuration form makes it easier to understand the option hierarchy, and to navigate the form.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32357">issue 32357</a>)
<li class="rfe major">
Richer 'Create Item' form with job icons and job categories (once a threshold of three categories has been reached).
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31162">issue 31162</a>)
<li class="rfe">
Upgrade wizard encourages installation of Pipeline related plugins when upgrading from 1.x.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33662">issue 33662</a>)
<li class="rfe">
<strong>Jenkins now requires Servlet 3.1</strong>. Upgraded embedded Winstone-Jetty to Jetty 9 accordingly.
<strong>This removes AJP support when using the embedded Winstone-Jetty container.</strong>
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-23378">issue 23378</a>)
<li class="rfe">
Bundled Groovy updated from 1.8.9 to 2.4.6.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-21249">issue 21249</a>)
<li class="rfe">
Added option to prohibit anonymous access to security realm "Logged in users can do anything", enable by default.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30749">issue 30749</a>)
<li class="rfe">
Renamed 'slave' to 'agent' on the UI.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-27268">issue 27268</a>)
<li class="rfe">
Improvements to inline documentation of numerous form fields in Jenkins global and job configuration.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33364">issue 33364</a>)
<li class="rfe">
Change default CSRF protection crumb name to Jenkins-Crumb for nginx compatibility.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-12875">issue 12875</a>)
<li class="bug">
Enforce correct icon size in list view.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33799">issue 33799</a>)
<li class="bug">
CLI: Fixed NPE when non-existent run is requested.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33942">issue 33942</a>)
</ul>
<h3><a name=v1.656>What's new in 1.656</a> (2016/04/03)</h3>
<ul class=image>
<li class="bug">
Advertise the correct JNLP port when using the system property override.
(<a href="https://github.com/jenkinsci/jenkins/pull/2189">pull 2189</a>)
<li class="bug">
Pipeline runs not reliably started after restart when using <em>Build after other projects are built</em>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33971">issue 33971</a>)
<li class="bug">
Prevent badges in build history sidepanel widget from overlapping page contents.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33826">issue 33826</a>)
<li class="rfe">
Developer API: Allow putting <tt>@Initializer</tt> annotations on instance methods.
(<a href="https://github.com/jenkinsci/jenkins/pull/2176">pull 2176</a>)
<li class="rfe">
Core development: Rerun failing tests rather than ignoring flaky tests.
(<a href="https://github.com/jenkinsci/jenkins/pull/2188">pull 2188</a>)
<li class="bug">
Core development: Prevent leaking threads due to <tt>NioChannelSelector</tt>.
(<a href="https://github.com/jenkinsci/jenkins/pull/2176">pull 2176</a>)
</ul>
<h3><a name=v1.655>What's new in 1.655</a> (2016/03/27)</h3>
<ul class=image>
<li class="major bug">
Downgrade Stapler to 1.239 to fix remote API issues.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33546">issue 33546</a>,
<a href="https://issues.jenkins-ci.org/browse/JENKINS-33605">issue 33605</a>)
<li class="major bug">
Plugin filters were failing to be removed and blocking restart.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33681">issue 33681</a>)
<li class="bug">
Do not hardcode <tt>.bat</tt> extension for Maven on Windows.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33693">issue 33693</a>)
<li class="rfe">
Reduce log level of <tt>UncaughtExceptionHandler</tt> message on startup.
(<a href="https://github.com/jenkinsci/jenkins/pull/2171">pull 2171</a>)
<li class="rfe">
Don't store redundant build causes, make list of build causes immutable.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33467">issue 33467</a>)
<li class="rfe">
Developer API: Add <tt>Fingerprint.getXStream()</tt>.
(<a href="https://github.com/jenkinsci/jenkins/pull/2163">pull 2163</a>)
<li class="rfe">
Core Development: Add the <tt>.mvn</tt> directory and set default <tt>-Xmx</tt> value.
(<a href="https://github.com/jenkinsci/jenkins/pull/2162">pull 2162</a>)
</ul>
<h3><a name=v1.654>What's new in 1.654</a> (2016/03/21)</h3>
<ul class=image>
<li class="bug">
Improve logging and error message when JNLP is already in use.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33453">issue 33453</a>)
<li class="bug">
<code>NullPointerException</code> from <code>BuildTrigger$DescriptorImpl.doCheck</code> when using <em>Build other projects</em> in <em>Promotion process</em> of a CloudBees template, and perhaps other circumstances.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32525">issue 32525</a>)
<li class="rfe">
Improved the Build Other Projects help message.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32134">issue 32134</a>)
<li class="bug">
<code>FutureImpl.cancel()</code> doesn't cancel the linked job.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33038">issue 33038</a>)
<li class="bug">
Reject malformed range syntax in fingerprints data.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33037">issue 33037</a>)
<li class="bug">
Do not fail update center check if there are no tool installers defined.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32831">issue 32831</a>)
<li class="rfe">
Log otherwise unhandled exceptions when threads die.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33395">issue 33395</a>)
<li class="bug">
Do not specifically require .NET framework 2.0 since 4.0 will do as well.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-21484">issue 21484</a>)
</ul>
<h3><a name=v1.653>What's new in 1.653</a> (2016/03/13)</h3>
<ul class=image>
<li class="major rfe">
Support encrypted communication between master and JNLP slaves.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-26580">issue 26580</a>)
<li class="bug">
Fix argument masking for sensitive build variables on Windows.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-28790">issue 28790</a>)
<li class="bug">
More compact representation of redundant build causes.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33467">issue 33467</a>)
<li class="rfe">
Developer API: <tt>Jenkins.getInstance()</tt> cannot be <tt>null</tt> anymore. Introduced <tt>Jenkins.getInstanceOrNull()</tt>.
</ul>
<h3><a name=v1.652>What's new in 1.652</a> (2016/03/06)</h3>
<ul class=image>
<li class="bug">
Under some conditions Jenkins startup could fail because of incorrectly linked extensions; now recovering more gracefully.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-25440">issue 25440</a>)
<li class="rfe">
Developer API: Add <tt>WorkspaceList.tempDir(…)</tt>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-27152">issue 27152</a>)
</ul>
<h3><a name=v1.651>What's new in 1.651</a> (2016/02/28)</h3>
<ul class=image>
<li class="rfe">
Move periodic task log files from <code>JENKINS_HOME/*.log</code> to <code>JENKINS_HOME/logs/tasks/*.log</code> and rotate them periodically rather than overwrite every execution.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-33068">issue 33068</a>)
<li class="bug">
Fix documentation of proxy configuration.
(<a href="https://github.com/jenkinsci/jenkins/pull/2060">pull 2060</a>)
</ul>
<h3><a name=v1.650>What's new in 1.650</a> (2016/02/24)</h3>
<ul class=image>
<li class="major bug">
<strong>Important security fixes</strong>
(<a href="https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-02-24">security advisory</a>)
</ul>
<h3><a name=v1.649>What's new in 1.649</a> (2016/02/21)</h3>
<ul class=image>
<li class="rfe">
Allow changing the directory used for the extraction of plugin archives via the <code>--pluginroot</code> CLI option (also controllable via the <code>hudson.PluginManager.workDir</code> system property / context parameter. Also document the <code>--webroot</code> CLI parameter in <code>java -jar jenkins.war --help</code>
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32765">issue 32765</a>)
<li class="rfe">
Unify CLI exit code semantics.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32273">issue 32273</a>)
<li class="bug">
ArrayIndexOutOfBoundsException when parsing range set.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32852">issue 32852</a>)
<li class="rfe">
Improved Polish translation.
(<a href="https://github.com/jenkinsci/jenkins/pull/2041">pull 2041</a>,
<a href="https://github.com/jenkinsci/jenkins/pull/2044">pull 2044</a>)
</ul>
<h3><a name=v1.648>What's new in 1.648</a> (2016/02/17)</h3>
<ul class=image>
<li class="rfe">
Improved Czech and Polish translation.
(<a href="https://github.com/jenkinsci/jenkins/pull/2008">pull 2008</a>,
<a href="https://github.com/jenkinsci/jenkins/pull/2018">pull 2017</a>,
<a href="https://github.com/jenkinsci/jenkins/pull/2017">pull 2018</a>)
<li class="bug">
Generate new instance identity file when the existing one is found to be corrupt.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-29240">issue 29240</a>)
</ul>
<h3><a name=v1.647>What's new in 1.647</a> (2016/02/04)</h3>
<ul class=image>
<li class="bug">
Retrieve tool installer metadata from all update sites.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32328">issue 32328</a>)
</ul>
<h3><a name=v1.646>What's new in 1.646</a> (2016/01/25)</h3>
<ul class=image>
<li class="major rfe">
The official parent POM for plugins is now hosted in the <code>plugin-pom</code> repository, starting with version 2.0.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32493">issue 32493</a>)
<li class="bug">
Under some conditions a build record could be loaded twice, leading to erratic behavior.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-22767">issue 22767</a>)
<li class="bug">
Fields on the parameters page are no longer aligned at the bottom.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31753">issue 31753</a>)
<li class="rfe">
Added missing translations for Polish language.
(<a href="https://github.com/jenkinsci/jenkins/pull/1986">pull 1986</a>)
</ul>
<h3><a name=v1.645>What's new in 1.645</a> (2016/01/18)</h3>
<ul class=image>
<li class="bug">
Cleanup of CLI error handling and return codes.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32273">issue 32273</a>)
<li class="bug">
Boot failure hook script did not work, WebAppMain.contextDestroyed produces weird errors.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-24696">issue 24696</a>)
<li class="bug">
Don't request usage statistics update if Jenkins hasn't finished loading.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32190">issue 32190</a>)
<li class="rfe">
Split test harness into separate artifact.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32478">issue 32478</a>)
<li class="bug">
Fix encoding of some help files.
(<a href="https://github.com/jenkinsci/jenkins/pull/1975">pull 1975</a>)
<li class="bug">
Remove JUnit dependency pulled in from JLine.
(<a href="https://github.com/jenkinsci/jenkins/pull/1981">pull 1981</a>)
<li class="bug">
Pass <tt>$it</tt> to contents of <tt>dropdownDescriptorSelector</tt>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-19565">issue 19565</a>)
</ul>
<h3><a name=v1.644>What's new in 1.644</a> (2016/01/10)</h3>
<ul class=image>
<li class="rfe">
API changes: Add a reusable implementation of <code>IdleOfflineCause</code> class.
(<a href="https://github.com/jenkinsci/jenkins/commit/7e05b5032e138b5780eabc790d7cddecdc9b0b7c">commit 7e05b50</a>)
<li class="rfe">
Add time zone to generation date in footer in most locales.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-32194">issue 32194</a>)
<li class="bug">
Prevent renaming nodes from overwriting existing nodes.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31321">issue 31321</a>)
<li class="bug">
Avoid synchronization when setting/getting the list of JDKs to improve performance.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31932">issue 31932</a>)
<li class="rfe">
The Windows service wrapper now specifies the <code>--webroot</code> argument to extract the war file into <code>%BASE%</code>.
(<a href="https://github.com/jenkinsci/jenkins/pull/1951">pull 1951</a>)
</ul>
<h3><a name=v1.643>What's new in 1.643</a> (2015/12/20)</h3>
<ul class=image>
<li class="bug">
Fix when multiple clouds are set up and provisioning of a node is denied.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31219">issue 31219</a>)
<li class="rfe">
Allow retrying core update when the first attempt failed.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-11016">issue 11016</a>)
<li class="rfe">
Allow specifying the default TCP slave agent listener port via system property.
(<a href="https://github.com/jenkinsci/jenkins/commit/653fbdb65024b1b528e21f682172885f7111bba9">commit 653fbdb</a>)
</ul>
<h3><a name=v1.642>What's new in 1.642</a> (2015/12/13)</h3>
<ul class=image>
<li class="major bug">
Various kinds of settings could not be saved since 1.640.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31954">issue 31954</a>)
</ul>
<h3><a name=v1.641>What's new in 1.641</a> (2015/12/09)</h3>
<ul class=image>
<li class="major bug">
<strong>Important security fixes</strong>
(<a href="https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2015-12-09">security advisory</a>)
</ul>
<h3><a name=v1.640>What's new in 1.640</a> (2015/12/07)</h3>
<ul class=image>
<li class="rfe">
Added support of default values in the <code>enum.jelly</code> form element.
(<a href="https://github.com/jenkinsci/jenkins/pull/1926">PR 1926</a>)
<li class="bug">
Bytecode Compatibility Transformer computes the common super class without loading classes.
Fixes the <code>ClassCircularityError</code> exception in Ruby Runtime Plugin.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31019">issue 31019</a>)
<li class="major bug">
Extended Choice parameter definitions could not be saved since 1.637.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31458">issue 31458</a>)
<li class="rfe">
Display expected CRON run times even if a warning occurs.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-29059">issue 29059</a>)
<li class="rfe">
Rework the <code>online-node</code> command implementation, no functional changes.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31776">issue 31776</a>)
<li class="bug">
Fix the footer behavior in particular cases.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30304">issue 30304</a>,
<a href="https://issues.jenkins-ci.org/browse/JENKINS-31395">issue 31395</a>)
<li class="rfe">
API changes: Deprecate subclassing of <code>hudson.Plugin</code>.
(<a href="https://github.com/jenkinsci/jenkins/pull/1940">PR 1940</a>)
</ul>
<h3><a name=v1.639>What's new in 1.639</a> (2015/11/29)</h3>
<ul class=image>
<li class="major bug">
“Discard old builds” setting would be lost if resaving job configuration as of 1.637 without rechecking the box.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31518">issue 31518</a>)
<li class="major bug">
“Form too large” errors from Jetty when submitting massive forms.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-20327">issue 20327</a>)
<li class="bug">
Multiple workspace browser features broken on Windows masters since 1.634.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31015">issue 31015</a>)
</ul>
<h3><a name=v1.638>What's new in 1.638</a> (2015/11/11)</h3>
<ul class=image>
<li class="major bug">
<strong>Important security fixes</strong>
(<a href="https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2015-11-11">security advisory</a>)
</ul>
<h3><a name=v1.637>What's new in 1.637</a> (2015/11/08)</h3>
<ul class=image>
<li class="bug">
Remove useless warnings about a JDK named <em>null</em>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31217">issue 31217</a>)
<li class="rfe">
New <tt>OptionalJobProperty</tt> class to simplify <tt>JobProperty</tt> creation.
(<a href="https://github.com/jenkinsci/jenkins/pull/1888">pull 1888</a>)
</ul>
<h3><a name=v1.636>What's new in 1.636</a> (2015/11/01)</h3>
<ul class=image>
<li class="rfe">
Add "lastCompletedBuild" job permalink.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-26270">issue 26270</a>)
</ul>
<h3><a name=v1.635>What's new in 1.635</a> (2015/10/25)</h3>
<ul class=image>
<li class="rfe">
Make Node implement Saveable.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31055">issue 31055</a>)
<li class="bug">
Revert trigger optimizations made in 1.621 by <a href="https://github.com/jenkinsci/jenkins/pull/1617">PR 1617</a>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30745">issue 30745</a>)
<li class="bug">
Delegate CLI's delete-node command to the overridable <code>Computer.doDoDelete()</code> method.
Fixes the issue in OpenStack and JClouds plugins.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-31098">issue 31098</a>, regression in 1.618)
<li class="bug">
Prevent autocorrect of username on mobile devices in login forms.
(<a href="https://github.com/jenkinsci/jenkins/pull/1531">PR 1531</a>)
<li class="rfe">
Describe the built-in JDK as "(System)".
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-755">issue 755</a>)
<li class="bug">
Update JNA library to 4.2.1 in order to integrate fixes for linux-ppc64 and linux-arm platforms.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-15792">issue 15792</a>)
</ul>
<h3><a name=v1.634>What's new in 1.634</a> (2015/10/18)</h3>
<ul class=image>
<li class="major bug">
Fix order of builds in new builds history widget introduced in 1.633.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30899">issue 30899</a>)
<li class="major bug">
Bytecode Compatibility Transformer would fail to transform some classes resulting in <code>ClassNotFoundException</code>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30820">issue 30820</a>)
<li class="bug">
Prevent <code>ClassCastException</code> in <code>AbstractBuild::reportError()</code> if the build step is not Publisher.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30730">issue 30730</a>)
<li class="bug">
Trim job names during the rename operation (it is impossible to delete or rename jobs with trailing spaces).
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30502">issue 30502</a>)
<li class="rfe">
Add "graphBg" and "plothBg" background color options to plot URLs
(<a href="https://github.com/jenkinsci/jenkins/pull/1769">PR 1769</a>)
<li class="rfe">
API changes: Add get method for causes of interruption in <code>hudson.model.Executor</code>
(<a href="https://github.com/jenkinsci/jenkins/pull/1712">PR 1712</a>)
<li class="rfe">
Allow case insensitive file patterns in Artifacts Archiving.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-5253">issue 5253</a>)
<li class="bug">
Prevent <code>NullPointerException</code> while estimating duration of Queue executable items.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30456">issue 30456</a>)
<li class="bug">
Fix the resolution of Windows symbolic links in <code>SecretRewriter</code>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30456">issue 30456</a>)
<li class="rfe">
Let a combobox display its drop-down when focused, so users can see candidates without entering a letter.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-26278">issue 26278</a>)
</ul>
<h3><a name=v1.633>What's new in 1.633</a> (2015/10/11)</h3>
<ul class=image>
<li class="rfe">
Added safari pinned tab icon.
(<a href="https://groups.google.com/d/msg/jenkinsci-dev/W29LIfo2uME/fpMy_YNZCgAJ">discussion</a>)
<li class="rfe">
Plugin Manager UI changes to prevent users from enabling/disabling/uninstalling plugins at the "wrong" time.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-23150">issue 23150</a>)
<li class="bug">
bytecode-compatibility-transformer produces malformed bytecode.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-28781">issue 28781</a>)
<li class="bug">
Properly handle <code>RuntimeException</code>s in run retention policy handler calls.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-29888">issue 29888</a>)
<li class="bug">
Prevent <code>NullPointerException</code> in CLI if Jenkins cannot find the specified job
or a job with the nearest name.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30742">issue 30742</a>)
<li class="bug">
Do not show <i>REST API</i> link for pages, which have no API handlers.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-29014">issue 29014</a>)
<li class="bug">
JS alert preventing to leave a configuration page without changes.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-21720">issue 21720</a>)
<li class="bug">
JS error triggered by collapsing build history widget.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30569">issue 30569</a>)
<li class="major rfe">
Build history pagination and search.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-26445">issue 26445</a>)
</ul>
<h3><a name=v1.632>What's new in 1.632</a> (2015/10/05)</h3>
<ul class=image>
<li class="bug">
Optimize TagCloud size calculation.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30705">issue 30705</a>)
<li class="bug">
FlyWeightTasks tied to a label will not cause node provisioning and will be blocked forever.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30084">issue 30084</a>)
<li class="bug">
Prevent <code>NullPointerException</code> for disabled builds in <code>ReverseBuildTrigger</code>.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-29876">issue 29876</a>)
<li class="rfe">
ConsoleLogFilter wasn't truly global
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30777">issue 30777</a>)
<li class="rfe">
API changes: <code>hudson.Util.isOverridden()</code> now supports protected methods.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30002">issue 30002</a>)
<li class="bug">
Sidepanel controls with confirmation (<code>lib/layout/task</code>) did not assign the proper CSS style.
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-30787">issue 30787</a>)
</ul>
<h3><a name=v1.631>What's new in 1.631</a> (2015/09/27)</h3>
<ul class=image>
<li class=rfe>
Add proper labels for plugin categories assigned to some plugins.
(<a href="https://github.com/jenkinsci/jenkins/pull/1758">PR 1758</a>)
</ul>
<h3><a name=v1.630>What's new in 1.630</a> (2015/09/20)</h3>
<ul class=image>
<li class="bug">
Make <tt>JenkinsRule</tt> useable on systems which don't support JNA
(<a href="https://issues.jenkins-ci.org/browse/JENKINS-29507">issue 29507</a>)