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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>[SERVER-63088] Change Chunk version persisted format</title>
                <link>https://jira.mongodb.org/browse/SERVER-63088</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, when persisted, we have a positional like format for the chunk version, but eventually, we want to manage an object like format everywhere:&lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;After the completion of this ticket, any cluster being upgraded to the next LTS version, will ensure, through the FCV upgrade code, all persisted ChunkVersions (like for example, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fcad95476ec91f12045db465522e4869e41ec68e/src/mongo/db/s/migration_coordinator_document.idl#L96&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the migration coordinator document&lt;/a&gt;) will have the format described above. In a similar manner, when downgrading to a continuous or latest stable version, the object format will be changed to the current positional format.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1973135">SERVER-63088</key>
            <summary>Change Chunk version persisted format</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="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</assignee>
                                    <reporter username="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</reporter>
                        <labels>
                    </labels>
                <created>Fri, 28 Jan 2022 15:50:50 +0000</created>
                <updated>Sun, 29 Oct 2023 21:43:27 +0000</updated>
                            <resolved>Fri, 18 Feb 2022 12:48:37 +0000</resolved>
                                                    <fixVersion>6.0.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4366962" author="xgen-internal-githook" created="Mon, 21 Feb 2022 16:15:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Marcos Jos&#233; Grillo Ramirez&apos;, &apos;email&apos;: &apos;marcos.grillo@mongodb.com&apos;, &apos;username&apos;: &apos;m4nti5&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63088&quot; title=&quot;Change Chunk version persisted format&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63088&quot;&gt;&lt;del&gt;SERVER-63088&lt;/del&gt;&lt;/a&gt; Enable chunk version persisted format change by default and ensure draining of migrations on FCV change only when necessary&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b80fabd0dfc93d154eb427f46c73b1acea857cbf&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b80fabd0dfc93d154eb427f46c73b1acea857cbf&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4363481" author="xgen-internal-githook" created="Fri, 18 Feb 2022 10:30:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Marcos Jos&#233; Grillo Ramirez&apos;, &apos;email&apos;: &apos;marcos.grillo@mongodb.com&apos;, &apos;username&apos;: &apos;m4nti5&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63088&quot; title=&quot;Change Chunk version persisted format&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63088&quot;&gt;&lt;del&gt;SERVER-63088&lt;/del&gt;&lt;/a&gt; Change chunk version persistance format&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e788711e98e6d4f6cbc8a97611109f9c5a86546c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e788711e98e6d4f6cbc8a97611109f9c5a86546c&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1979230">SERVER-63403</issuekey>
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