Jenkins 2.12 和 2.7.1 发布了，Jenkins 主要用于持续、自动地构建/测试软件项目，如CruiseControl与DamageControl，监控一些定时执行的任务。 Jenkins 2.12 改进记录如下： Enable the DescriptorVisibilityFilters for ComputerLauncher, RetentionStrategy and NodeProperty.
(Issue 36280) Before starting a process, ensure that its working directory exists.
(Issue 36277) Prevent NullPointerException during SCM polling if SCMDecisionHandler returns null veto.
(Issue 36232, regression in 2.11) Ensure that SCMDescriptor.newInstance overrides are honored when creating new SCM entries.
(Issue 36043, Issue 35906
, regression in 2.10) Performance: Improve configuration page load times by removing the CodeMirror reloading cycle.
(Issue 32027) Fix optional plugin dependency version resolution.
(Issue 21486, previous fix was reverted in Jenkins 2) When creating a tar file, ensure that the final size does not exceed the value
in header in the case of growing files.
(Issue 20187) Do not inject build variables into Maven process by default for new projects.
(Issue 25416,
Issue 28790) Update BUILD_TAG environment variable description to mention the replacement of slashes with dashes.
(PR #2417) Internal API: Make BulkChange auto-closeable.
(PR #2428)
Jenkins 2.7.1 主要改进如下： Installation Wizard: Do not offer creating new admin user if the security is preconfigured.
(Issue 34881) API: Make it easier for UpdateSites to tweak the InstallationJob.
(Issue 35402) Fix the repeatable item delete button layout in Safari.
Addresses Build Steps and other such configuration items.
(Issue 35178) Prevent NullPointerException on startup after update from Jenkins 2.5.
(Issue 35206) Explicitly declare compatibility of Windows build agent service with .NET Framework 4.
(PR #2386) Honor noProxy settings from "Manage Jenkins > Manage Plugins > Advanced".
(Issue 31915) API: Restrict external usages of jenkins.util.ResourceBundleUtil.
(Issue 35381) Internal: Upgrade Groovy to 2.4.7 to finalize the fix in Jenkins 2.7.
(Issue 34751)
了解更多改进信息，查看 Jenkins 2.7.1 完整改进记录。 | 
