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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[CDRIVER-2841] First read in transaction uses client/db/collection readConcern, not mongoc_txn_opt_t readConcern</title>
                <link>https://jira.mongodb.org/browse/CDRIVER-2841</link>
                <project id="10030" key="CDRIVER">C Driver</project>
                    <description>&lt;p&gt;Transactions Spec:&lt;/p&gt;
&lt;blockquote&gt;&lt;p&gt;Drivers MUST override all other collection, database, or client readConcerns with the transaction&#8217;s readConcern. Drivers MUST add this readConcern to the first command in a transaction if and only if the readConcern is supplied and not the default.&lt;/p&gt;&lt;/blockquote&gt;
&lt;p&gt;However, if you set a readConcern on a collection and do an aggregate or count as the first operation of a transaction, the driver sends the collection&apos;s readConcern, not the transaction&apos;s readConcern. Instead, the readConcern that was configured with&#160;mongoc_session_opts_set_default_transaction_opts or&#160;mongoc_client_session_start_transaction, or no readConcern, should be used.&lt;/p&gt;</description>
                <environment></environment>
        <key id="613759">CDRIVER-2841</key>
            <summary>First read in transaction uses client/db/collection readConcern, not mongoc_txn_opt_t readConcern</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="13201">Fixed</resolution>
                                        <assignee username="jesse@mongodb.com">A. Jesse Jiryu Davis</assignee>
                                    <reporter username="jesse@mongodb.com">A. Jesse Jiryu Davis</reporter>
                        <labels>
                    </labels>
                <created>Wed, 3 Oct 2018 20:57:43 +0000</created>
                <updated>Sat, 28 Oct 2023 11:29:33 +0000</updated>
                            <resolved>Wed, 10 Oct 2018 13:13:06 +0000</resolved>
                                    <version>1.11.0</version>
                                    <fixVersion>1.14.0</fixVersion>
                                    <component>libmongoc</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2028863" author="xgen-internal-githook" created="Wed, 10 Oct 2018 13:12:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;, &apos;username&apos;: &apos;ajdavis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CDRIVER-2841&quot; title=&quot;First read in transaction uses client/db/collection readConcern, not mongoc_txn_opt_t readConcern&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CDRIVER-2841&quot;&gt;&lt;del&gt;CDRIVER-2841&lt;/del&gt;&lt;/a&gt; txn reads mustn&apos;t inherit readConcern&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-c-driver/commit/02f4bd911f0b6ee2c2522803efcb129d13040b04&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-c-driver/commit/02f4bd911f0b6ee2c2522803efcb129d13040b04&lt;/a&gt;&lt;/p&gt;</comment>
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                                            <outwardlinks description="tested by">
                                        <issuelink>
            <issuekey id="577619">CDRIVER-2773</issuekey>
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