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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-38539] Remove $_internalLatestOplogTimestamp and mergeByPBRT from change streams in 4.4</title>
                <link>https://jira.mongodb.org/browse/SERVER-38539</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In 4.2, we added a new &lt;tt&gt;postBatchResumeToken&lt;/tt&gt; to each batch returned by a change stream, which superseded the older &lt;tt&gt;$_internalLatestOplogTimestamp&lt;/tt&gt; mechanism used when merging the streams on mongoS. However, we had to retain the latter in 4.2 to facilitate upgrade from and downgrade to 4.0.&lt;/p&gt;

&lt;p&gt;Now that it is no longer necessary, we should remove all remaining traces of &lt;tt&gt;$_internalLatestOplogTimestamp&lt;/tt&gt; from the codebase.&lt;/p&gt;</description>
                <environment></environment>
        <key id="649820">SERVER-38539</key>
            <summary>Remove $_internalLatestOplogTimestamp and mergeByPBRT from change streams in 4.4</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="bernard.gorman@mongodb.com">Bernard Gorman</assignee>
                                    <reporter username="bernard.gorman@mongodb.com">Bernard Gorman</reporter>
                        <labels>
                    </labels>
                <created>Tue, 11 Dec 2018 19:07:33 +0000</created>
                <updated>Sun, 29 Oct 2023 22:25:52 +0000</updated>
                            <resolved>Tue, 25 Jun 2019 12:03:26 +0000</resolved>
                                                    <fixVersion>4.3.1</fixVersion>
                                    <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2296305" author="xgen-internal-githook" created="Tue, 25 Jun 2019 12:02:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Bernard Gorman&apos;, &apos;email&apos;: &apos;bernard.gorman@gmail.com&apos;, &apos;username&apos;: &apos;gormanb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-38539&quot; title=&quot;Remove $_internalLatestOplogTimestamp and mergeByPBRT from change streams in 4.4&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-38539&quot;&gt;&lt;del&gt;SERVER-38539&lt;/del&gt;&lt;/a&gt; Remove $_internalLatestOplogTimestamp and mergeByPBRT from change streams in 4.4&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/14b94fa1ae59986a61d2c5b971ba61475fe2254f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/14b94fa1ae59986a61d2c5b971ba61475fe2254f&lt;/a&gt;&lt;/p&gt;</comment>
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