Add changelog not for setting <Package>_ENABLE_<depPkg> for required …

…deps (#63, #299)

This breaks at least one Trilinos package Isorropia.

tribits/CHANGELOG.md

@@ -31,6 +31,16 @@ ChangeLog for TriBITS
   technically a break in backward compatibility, but not for well-formed
   TriBITS projects.
 
+* **Changed:** Variables `${PACKAGE_NAME}_ENABLE_<depPkg>` are now set to
+  `TRUE` for required upstream internal and external packages/TPLs (in order
+  to simplify internal logic).  However, a side effect of this is that that
+  was ifed out with an incorrect `if (${PACKAGE_NAME}_ENABLE_<depPkg>)`
+  statement for a required upstream dependency `<depPkg>` will now be enabled.
+  (This mistake can happen when an optional dependency `<depPkg>` is changed
+  to a required dependency but the `if()` statements based on
+  `${PACKAGE_NAME}_ENABLE_<depPkg>` are not removed.  (Well-formed TriBITS
+  projects and packages should not experience any change.)
+
 ## 2022-05-16:
 
 * **Added:** The function `tribits_add_advanced_test(`) now correctly accepts