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    <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>[CSHARP-3762] Single TopologyType should ignore &quot;Server Description Equality&quot; logic </title>
                <link>https://jira.mongodb.org/browse/CSHARP-3762</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;The &lt;a href=&quot;https://github.com/mongodb/specifications/blob/master/source/server-discovery-and-monitoring/server-discovery-and-monitoring.rst#topologytype-single&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;spec&lt;/a&gt; says:&lt;/p&gt;
&lt;blockquote&gt;&lt;p&gt;Whenever the client checks a server (successfully or not), and *&lt;b&gt;regardless&lt;/b&gt;* of whether the new server description is equal to the previous server description as defined in Server Description Equality, the ServerDescription in TopologyDescription.servers MUST be replaced with the new ServerDescription.&lt;/p&gt;&lt;/blockquote&gt;
&lt;p&gt;that we violate &lt;a href=&quot;https://github.com/mongodb/mongo-csharp-driver/blob/master/src/MongoDB.Driver.Core/Core/Clusters/SingleServerCluster.cs#L236&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&#160;NOTE: this also includes SDAM events&lt;/p&gt;</description>
                <environment></environment>
        <key id="1827827">CSHARP-3762</key>
            <summary>Single TopologyType should ignore &quot;Server Description Equality&quot; logic </summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="10300" iconUrl="https://jira.mongodb.org/images/icons/priorities/medium.svg">Unknown</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="13202">Works as Designed</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="dmitry.lukyanov@mongodb.com">Dmitry Lukyanov</reporter>
                        <labels>
                            <label>SDAM</label>
                    </labels>
                <created>Wed, 21 Jul 2021 22:03:16 +0000</created>
                <updated>Fri, 27 Oct 2023 13:24:44 +0000</updated>
                            <resolved>Wed, 4 Aug 2021 15:59:54 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3980737" author="dmitry.lukyanov" created="Wed, 4 Aug 2021 15:59:54 +0000"  >&lt;p&gt;I misunderstood the spec intention. We still need to consider SDAM equality logic for SDAM events and should ignore it for updating topology itself. This behavior is already implemented.&lt;/p&gt;</comment>
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