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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>[DRIVERS-2271] Omit upsert and multi options in update statements by default</title>
                <link>https://jira.mongodb.org/browse/DRIVERS-2271</link>
                <project id="10980" key="DRIVERS">Drivers</project>
                    <description>&lt;div class=&quot;panel&quot; style=&quot;background-color: #fafbfc;border-color: #21313c;border-style: solid;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #fafbfc;&quot;&gt;
&lt;h3&gt;&lt;a name=&quot;Summary&quot;&gt;&lt;/a&gt;&lt;b&gt;Summary&lt;/b&gt;&lt;/h3&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/specifications/commit/b6cdaa89e74870caf5501bdabf5deee5b024cae9#diff-2fe314a3da48fca10d3a170b09a5a393a93dbb4e9369d6741c99656a95dd7034R815&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;b6cdaa8&lt;/a&gt; originally changed the CRUD spec&apos;s documentation for &lt;tt&gt;upsert&lt;/tt&gt; from &quot;default is false&quot; to &quot;default is to not send a value&quot;. There is no similar guidance for &lt;tt&gt;multi&lt;/tt&gt;, as the CRUD spec doesn&apos;t discuss command construction.&lt;/p&gt;

&lt;p&gt;That said, there were never downstream language tickets for the &lt;tt&gt;upsert&lt;/tt&gt; documentation change. Some drivers (e.g. libmongoc) have historically specified &lt;tt&gt;false&lt;/tt&gt; for both options in outgoing update commands, so not to rely on the server&apos;s default. At this point, it is unlikely the server defaults will ever change (it would be a significant BC break), so we should consider requiring drivers to omit these fields by default.&lt;/p&gt;

&lt;p&gt;In turn, this would mean we can remove &lt;tt&gt;$$unsetOrMatches&lt;/tt&gt; for these options throughout our spec tests, and spec test authors will no longer need to remember to use that syntax going forward.&lt;/p&gt;

&lt;h3&gt;&lt;a name=&quot;Motivation&quot;&gt;&lt;/a&gt;&lt;b&gt;Motivation&lt;/b&gt;&lt;/h3&gt;
&lt;h4&gt;&lt;a name=&quot;Whoistheaffectedenduser%3F&quot;&gt;&lt;/a&gt;Who is the affected end user?&lt;/h4&gt;
&lt;p&gt;Drivers.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;Howdoesthisaffecttheenduser%3F&quot;&gt;&lt;/a&gt;How does this affect the end user?&lt;/h4&gt;
&lt;p&gt;Outgoing update commands are more verbose and spec test authors must remember to use &lt;tt&gt;$$unsetOrMatches&lt;/tt&gt; for update command assertions.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;Isthisissueurgent%3F&quot;&gt;&lt;/a&gt;Is this issue urgent?&lt;/h4&gt;
&lt;p&gt;No.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;Isthisticketrequiredbyadownstreamteam%3F&quot;&gt;&lt;/a&gt;Is this ticket required by a downstream team?&lt;/h4&gt;
&lt;p&gt;No.&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;Isthisticketonlyfortests%3F&quot;&gt;&lt;/a&gt;Is this ticket only for tests?&lt;/h4&gt;
&lt;p&gt;No.&lt;/p&gt;
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                <environment></environment>
        <key id="2020308">DRIVERS-2271</key>
            <summary>Omit upsert and multi options in update statements by default</summary>
                <type id="14901" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14700&amp;avatarType=issuetype">Spec Change</type>
                                            <priority id="10300" iconUrl="https://jira.mongodb.org/images/icons/priorities/medium.svg">Unknown</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="jmikola@mongodb.com">Jeremy Mikola</reporter>
                        <labels>
                    </labels>
                <created>Fri, 8 Apr 2022 13:57:05 +0000</created>
                <updated>Thu, 1 Jun 2023 13:41:26 +0000</updated>
                                                                <component>CRUD</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                    <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="2019762">DRIVERS-2270</issuekey>
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