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    <title>MongoDB Jira</title>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-14233] Remove support for old oplog versions</title>
                <link>https://jira.mongodb.org/browse/SERVER-14233</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In 2.2.1 we changed the oplog format to fix idempotency issues.  We still have code in the server to handle old style oplog entries, it would be nice to get rid of that code now.&lt;/p&gt;

&lt;p&gt;This could have implications for users who try to upgrade from some very old (before 2.2.1) version of mongodb up to 2.8.  Even if they go through all intermediate versions (2.0-&amp;gt;2.2-&amp;gt;2.4-&amp;gt;2.6-&amp;gt;2.8), they will need to make sure that before going from 2.6 to 2.8 all nodes in the set have replicated past the last old style (pre 2.2.1) oplog entry, otherwise a 2.8 secondary will crash upon replicating an old style oplog entry.&lt;/p&gt;</description>
                <environment></environment>
        <key id="141661">SERVER-14233</key>
            <summary>Remove support for old oplog versions</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="9">Done</resolution>
                                        <assignee username="spencer@mongodb.com">Spencer Brody</assignee>
                                    <reporter username="spencer@mongodb.com">Spencer Brody</reporter>
                        <labels>
                    </labels>
                <created>Wed, 11 Jun 2014 22:50:24 +0000</created>
                <updated>Tue, 27 Oct 2015 14:24:33 +0000</updated>
                            <resolved>Thu, 25 Sep 2014 18:01:05 +0000</resolved>
                                                    <fixVersion>2.7.7</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="723099" author="xgen-internal-githook" created="Fri, 19 Sep 2014 15:51:27 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;milkie&apos;, u&apos;name&apos;: u&apos;Eric Milkie&apos;, u&apos;email&apos;: u&apos;milkie@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14233&quot; title=&quot;Remove support for old oplog versions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14233&quot;&gt;&lt;del&gt;SERVER-14233&lt;/del&gt;&lt;/a&gt; remove support for old oplog versions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f69fefd9b7d9b2e19af32ab0337650a0fca3344a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f69fefd9b7d9b2e19af32ab0337650a0fca3344a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="703224" author="spencer" created="Mon, 25 Aug 2014 21:33:01 +0000"  >&lt;p&gt;Moving to 2.7 required as otherwise we would have to re-implement this functionality in the new ReplicationCoordinatorImpl&lt;/p&gt;</comment>
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