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| <h1>Apache Kudu 1.12.0 Release Notes</h1> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_upgrade_notes"><a class="link" href="#rn_1.12.0_upgrade_notes">Upgrade Notes</a></h2> |
| <div class="sectionbody"> |
| |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_obsoletions"><a class="link" href="#rn_1.12.0_obsoletions">Obsoletions</a></h2> |
| <div class="sectionbody"> |
| |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_deprecations"><a class="link" href="#rn_1.12.0_deprecations">Deprecations</a></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Support for Python 2.x and Python 3.4 and earlier is deprecated and may be removed in the next minor release.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_new_features"><a class="link" href="#rn_1.12.0_new_features">New features</a></h2> |
| <div class="sectionbody"> |
| |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_improvements"><a class="link" href="#rn_1.12.0_improvements">Optimizations and improvements</a></h2> |
| <div class="sectionbody"> |
| |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_fixed_issues"><a class="link" href="#rn_1.12.0_fixed_issues">Fixed Issues</a></h2> |
| <div class="sectionbody"> |
| |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_wire_compatibility"><a class="link" href="#rn_1.12.0_wire_compatibility">Wire Protocol compatibility</a></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Kudu 1.12.0 is wire-compatible with previous versions of Kudu:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Kudu 1.12 clients may connect to servers running Kudu 1.0 or later. If the client uses |
| features that are not available on the target server, an error will be returned.</p> |
| </li> |
| <li> |
| <p>Rolling upgrade between Kudu 1.11 and Kudu 1.12 servers is believed to be possible |
| though has not been sufficiently tested. Users are encouraged to shut down all nodes |
| in the cluster, upgrade the software, and then restart the daemons on the new version.</p> |
| </li> |
| <li> |
| <p>Kudu 1.0 clients may connect to servers running Kudu 1.12 with the exception of the |
| below-mentioned restrictions regarding secure clusters.</p> |
| </li> |
| </ul> |
| </div> |
| <div class="paragraph"> |
| <p>The authentication features introduced in Kudu 1.3 place the following limitations |
| on wire compatibility between Kudu 1.12 and versions earlier than 1.3:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>If a Kudu 1.12 cluster is configured with authentication or encryption set to "required", |
| clients older than Kudu 1.3 will be unable to connect.</p> |
| </li> |
| <li> |
| <p>If a Kudu 1.12 cluster is configured with authentication and encryption set to "optional" |
| or "disabled", older clients will still be able to connect.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="rn_1.12.0_incompatible_changes"><a class="link" href="#rn_1.12.0_incompatible_changes">Incompatible Changes in Kudu 1.12.0</a></h2> |
| <div class="sectionbody"> |
| <div class="sect2"> |
| <h3 id="rn_1.12.0_client_compatibility"><a class="link" href="#rn_1.12.0_client_compatibility">Client Library Compatibility</a></h3> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>The Kudu 1.12 Java client library is API- and ABI-compatible with Kudu 1.11. Applications |
| written against Kudu 1.11 will compile and run against the Kudu 1.12 client library and |
| vice-versa.</p> |
| </li> |
| <li> |
| <p>The Kudu 1.12 C++ client is API- and ABI-forward-compatible with Kudu 1.11. |
| Applications written and compiled against the Kudu 1.11 client library will run without |
| modification against the Kudu 1.12 client library. Applications written and compiled |
| against the Kudu 1.12 client library will run without modification against the Kudu 1.11 |
| client library.</p> |
| </li> |
| <li> |
| <p>The Kudu 1.12 Python client is API-compatible with Kudu 1.11. Applications |
| written against Kudu 1.11 will continue to run against the Kudu 1.12 client |
| and vice-versa.</p> |
| </li> |
| </ul> |
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| <div class="sect1"> |
| <h2 id="rn_1.12.0_known_issues"><a class="link" href="#rn_1.12.0_known_issues">Known Issues and Limitations</a></h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Please refer to the <a href="known_issues.html">Known Issues and Limitations</a> section of the |
| documentation.</p> |
| </div> |
| </div> |
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| <div class="sect1"> |
| <h2 id="rn_1.12.0_contributors"><a class="link" href="#rn_1.12.0_contributors">Contributors</a></h2> |
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| |
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| <h2 id="resources_and_next_steps"><a class="link" href="#resources_and_next_steps">Resources</a></h2> |
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| <p><a href="http://kudu.apache.org">Kudu Website</a></p> |
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| <p><a href="http://github.com/apache/kudu">Kudu GitHub Repository</a></p> |
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| <p><a href="index.html">Kudu Documentation</a></p> |
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| <div class="sect1"> |
| <h2 id="_installation_options"><a class="link" href="#_installation_options">Installation Options</a></h2> |
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| <div class="paragraph"> |
| <p>For full installation details, see <a href="installation.html">Kudu Installation</a>.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_next_steps"><a class="link" href="#_next_steps">Next Steps</a></h2> |
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| <li> |
| <p><a href="quickstart.html">Kudu Quickstart</a></p> |
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| <li> |
| <p><a href="installation.html">Installing Kudu</a></p> |
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| <p><a href="configuration.html">Configuring Kudu</a></p> |
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| |
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| |
| <li> |
| |
| <a href="index.html">Introducing Kudu</a> |
| </li> |
| <li> |
| <span class="active-toc">Kudu Release Notes</span> |
| <ul class="sectlevel1"> |
| <li><a href="#rn_1.12.0_upgrade_notes">Upgrade Notes</a></li> |
| <li><a href="#rn_1.12.0_obsoletions">Obsoletions</a></li> |
| <li><a href="#rn_1.12.0_deprecations">Deprecations</a></li> |
| <li><a href="#rn_1.12.0_new_features">New features</a></li> |
| <li><a href="#rn_1.12.0_improvements">Optimizations and improvements</a></li> |
| <li><a href="#rn_1.12.0_fixed_issues">Fixed Issues</a></li> |
| <li><a href="#rn_1.12.0_wire_compatibility">Wire Protocol compatibility</a></li> |
| <li><a href="#rn_1.12.0_incompatible_changes">Incompatible Changes in Kudu 1.12.0</a> |
| <ul class="sectlevel2"> |
| <li><a href="#rn_1.12.0_client_compatibility">Client Library Compatibility</a></li> |
| </ul> |
| </li> |
| <li><a href="#rn_1.12.0_known_issues">Known Issues and Limitations</a></li> |
| <li><a href="#rn_1.12.0_contributors">Contributors</a></li> |
| <li><a href="#resources_and_next_steps">Resources</a></li> |
| <li><a href="#_installation_options">Installation Options</a></li> |
| <li><a href="#_next_steps">Next Steps</a></li> |
| </ul> |
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| <a href="quickstart.html">Quickstart Guide</a> |
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