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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[CXX-948] Support new readConcern level &quot;linearizable&quot;</title>
                <link>https://jira.mongodb.org/browse/CXX-948</link>
                <project id="11980" key="CXX">C++ Driver</project>
                    <description>&lt;p&gt;A linearizable read avoids returning reads from a &quot;stale&quot; primary (one that has already been superseded by a new primary but doesn&apos;t know it yet). It is important to note that readConcern level linearizable does not by itself produce linearizable reads; they must be issued in conjunction with w:majority writes to the same document(s) in order to be linearizable.&lt;/p&gt;


&lt;p&gt;This feature is exposed as a new value for readConcern.level, &quot;linearizable&quot;.&lt;/p&gt;
</description>
                <environment></environment>
        <key id="295936">CXX-948</key>
            <summary>Support new readConcern level &quot;linearizable&quot;</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="rassi">J Rassi</assignee>
                                    <reporter username="rathi.gnanasekaran">Rathi Gnanasekaran</reporter>
                        <labels>
                    </labels>
                <created>Wed, 22 Jun 2016 18:11:30 +0000</created>
                <updated>Tue, 29 Nov 2016 18:48:42 +0000</updated>
                            <resolved>Sat, 8 Oct 2016 21:06:57 +0000</resolved>
                                                    <fixVersion>3.1.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1444954" author="xgen-internal-githook" created="Tue, 29 Nov 2016 18:48:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jrassi&apos;, u&apos;name&apos;: u&apos;J. Rassi&apos;, u&apos;email&apos;: u&apos;rassi@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CXX-948&quot; title=&quot;Support new readConcern level &amp;quot;linearizable&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CXX-948&quot;&gt;&lt;del&gt;CXX-948&lt;/del&gt;&lt;/a&gt; Add new read concern level &quot;linearizable&quot;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-cxx-driver/commit/6dac8f01904895fcf2179eb5ce293dcf4fb484db&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-cxx-driver/commit/6dac8f01904895fcf2179eb5ce293dcf4fb484db&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1444953" author="xgen-internal-githook" created="Tue, 29 Nov 2016 18:48:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jrassi&apos;, u&apos;name&apos;: u&apos;J. Rassi&apos;, u&apos;email&apos;: u&apos;rassi@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CXX-948&quot; title=&quot;Support new readConcern level &amp;quot;linearizable&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CXX-948&quot;&gt;&lt;del&gt;CXX-948&lt;/del&gt;&lt;/a&gt; Refactor and expand read concern unit tests&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-cxx-driver/commit/ade597a2546af1be8fb606fbfa3b1a9770669616&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-cxx-driver/commit/ade597a2546af1be8fb606fbfa3b1a9770669616&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1403671" author="xgen-internal-githook" created="Sat, 8 Oct 2016 21:04:32 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jrassi&apos;, u&apos;name&apos;: u&apos;J. Rassi&apos;, u&apos;email&apos;: u&apos;rassi@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CXX-948&quot; title=&quot;Support new readConcern level &amp;quot;linearizable&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CXX-948&quot;&gt;&lt;del&gt;CXX-948&lt;/del&gt;&lt;/a&gt; Add new read concern level &quot;linearizable&quot;&lt;br/&gt;
Branch: 3.1-dev&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-cxx-driver/commit/6dac8f01904895fcf2179eb5ce293dcf4fb484db&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-cxx-driver/commit/6dac8f01904895fcf2179eb5ce293dcf4fb484db&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1403670" author="xgen-internal-githook" created="Sat, 8 Oct 2016 21:04:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jrassi&apos;, u&apos;name&apos;: u&apos;J. Rassi&apos;, u&apos;email&apos;: u&apos;rassi@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CXX-948&quot; title=&quot;Support new readConcern level &amp;quot;linearizable&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CXX-948&quot;&gt;&lt;del&gt;CXX-948&lt;/del&gt;&lt;/a&gt; Refactor and expand read concern unit tests&lt;br/&gt;
Branch: 3.1-dev&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-cxx-driver/commit/ade597a2546af1be8fb606fbfa3b1a9770669616&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-cxx-driver/commit/ade597a2546af1be8fb606fbfa3b1a9770669616&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1398477" author="rassi@10gen.com" created="Sun, 2 Oct 2016 16:32:59 +0000"  >&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo-cxx-driver/pull/552&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-cxx-driver/pull/552&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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                                        <issuelink>
            <issuekey id="293744">DRIVERS-307</issuekey>
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