Add release notes and modify release date

NEWS

@@ -4,7 +4,7 @@ Bowtie 2 NEWS
 Bowtie 2 is available for download from the project website,
 http://bowtie-bio.sf.net/bowtie2 and on Github,
 https://github.com/BenLangmead/bowtie2/releases.  2.0.0-beta1 is
-the first version released to the public and 2.4.1 is the latest
+the first version released to the public and 2.4.3 is the latest
 version.  Bowtie 2 is licensed under the GPLv3 license.  See `LICENSE'
 file for details.
 
@@ -19,6 +19,21 @@ Please report any issues to the Bowtie 2 Github page or using the Sourceforge bu
 Version Release History
 =======================
 
+Version 2.4.3 - May 13, 2021
+
+    * Replaced TBB concurrency with C++ threads
+    * Added native support for processing Zstd-compressed read files
+      to bowtie2
+    * Added native support for processing Zstd-compressed
+      reference-genome files to bowtie2-build
+    * Fixed an issue causing `bowtie2` to report incorrect alignments
+      on big-endian machines
+    * Fixed an issue causing `bowtie2` to incorrectly process BAM
+      files on big-endian machines
+    * Fixed an issue causing Bowtie2 to set an incorrect MAPQ when AS and
+      XS are the maximum for read length
+    * Add support for building on Apple M1 processors
+
 Version 2.4.2 - Oct 5, 2020
 
     * Fixed an issue that would cause the `bowtie2` wrapper script to throw

doc/website/recent_news.ssi

@@ -1,3 +1,14 @@
+<h2>Version 2.4.3 - May 13, 2021</h2>
+<ul>
+    <li>Replaced TBB concurrency with C++ threads</li>
+    <li>Added native support for processing Zstd-compressed read files to <code>>bowtie2</code></li>
+    <li>Added native support for processing Zstd-compressed reference-genome files to bowtie2-build</li>
+    <li>Fixed an issue causing <code>bowtie2</code> to report incorrect alignments on big-endian machines</li>
+    <li>Fixed an issue causing <code>bowtie2</code> to incorrectly process BAM files on big-endian machines</li>
+    <li>Fixed an issue causing <code>bowtie2</code> to set an incorrect MAPQ when AS and XS are the maximum for read length</li>
+    <li>Add support for building on Apple M1 processors</li>
+</ul>
+
 <h2>Version 2.4.2 - Oct 5, 2020 </h2>
 <ul>
     <li>Fixed an issue that would cause the <code>bowtie2</code> wrapper script to throw an error when using wrapper-specific arguments.</li>

doc/website/rhsidebar.ssi

@@ -21,7 +21,7 @@
         <a href="https://sourceforge.net/projects/bowtie-bio/files/bowtie2/2.4.3">Bowtie2 v2.4.3</a>
       </td>
       <td align="right">
-        11/05/21&nbsp;
+        13/05/21&nbsp;
       </td>
       </tr>
       <tr>