Index: BOOK/introduction/common/changelog.xml
===================================================================
--- BOOK/introduction/common/changelog.xml (revision 11d3382b9460ba19c5023d86bcb6d59990b87185)
+++ BOOK/introduction/common/changelog.xml (revision 95c1d146bbdb998f7f141f04704da2d780c1b245)
@@ -37,4 +37,14 @@
-->
+ 16 April 2017
+
+
+ [William Harrington] - Upgrade Linux kernel to 4.9.21. Fixes
+ ticket #1105.
+
+
+
+
+
15 April 2017