nixos/spark: release notes

nixos/doc/manual/from_md/release-notes/rl-2111.section.xml

@@ -37,6 +37,13 @@
           PostgreSQL now defaults to major version 13.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          spark now defaults to spark 3, updated from 2. A
+          <link xlink:href="https://spark.apache.org/docs/latest/core-migration-guide.html#upgrading-from-core-24-to-30">migration
+          guide</link> is available.
+        </para>
+      </listitem>
       <listitem>
         <para>
           Activation scripts can now opt int to be run when running
@@ -250,6 +257,12 @@
           entry</link>.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <link xlink:href="https://spark.apache.org/">spark</link>, a
+          unified analytics engine for large-scale data processing.
+        </para>
+      </listitem>
     </itemizedlist>
   </section>
   <section xml:id="sec-release-21.11-incompatibilities">

nixos/doc/manual/release-notes/rl-2111.section.md

@@ -14,6 +14,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 
 - PostgreSQL now defaults to major version 13.
 
+- spark now defaults to spark 3, updated from 2. A [migration guide](https://spark.apache.org/docs/latest/core-migration-guide.html#upgrading-from-core-24-to-30) is available.
+
 - Activation scripts can now opt int to be run when running `nixos-rebuild dry-activate` and detect the dry activation by reading `$NIXOS_ACTION`.
   This allows activation scripts to output what they would change if the activation was really run.
   The users/modules activation script supports this and outputs some of is actions.
@@ -78,6 +80,8 @@ subsonic-compatible api. Available as [navidrome](#opt-services.navidrome.enable
   or sends them to a downstream service for further analysis.
   Documented in [its manual entry](#module-services-parsedmarc).
 
+- [spark](https://spark.apache.org/), a unified analytics engine for large-scale data processing.
+
 ## Backward Incompatibilities {#sec-release-21.11-incompatibilities}