Release notes: Move download segment merging out of 2.11.2

PiperOrigin-RevId: 290276507

RELEASENOTES.md

@@ -17,6 +17,8 @@
   * Parse `text-combine-upright` CSS property (i.e. tate-chu-yoko) in WebVTT
     subtitles (rendering is coming later).
 * DRM: Add support for attaching DRM sessions to clear content in the demo app.
+* Downloads: Merge downloads in `SegmentDownloader` to improve overall download
+  speed ([#5978](https://github.com/google/ExoPlayer/issues/5978)).
 * MP4: Store the Android capture frame rate only in `Format.metadata`.
   `Format.frameRate` now stores the calculated frame rate.
 * Testing
@@ -34,8 +36,6 @@
   * Reduce startup latency for on-demand DASH playbacks by allowing codec
     initialization to occur before the sidx box has been loaded.
 * Downloads:
-  * Merge downloads in `SegmentDownloader` to improve overall download
-    speed ([#5978](https://github.com/google/ExoPlayer/issues/5978)).
   * Fix download resumption when the requirements for them to continue are
     met ([#6733](https://github.com/google/ExoPlayer/issues/6733),
     [#6798](https://github.com/google/ExoPlayer/issues/6798)).