Refactor latest history

HISTORY.txt

@@ -1,11 +1,5 @@
-Changes in TBC 4.8.0/5.0.0 (upcoming)
+Changes in TBC (upcoming)
 
-* Removed: Obsolete 'no widowed words' preference setting. If this feature is
-  needed it can be implemented directly with <txp:title /> tag.
-
-Changes in 4.7.4
-
-* Maintenance release with enhancements and bug fixes.
 * Fixed: index.php correctly included in css.php.
 * Fixed: 3 undefined routing-related indexes.
 * Fixed: txpreview is not cached.
@@ -14,6 +8,8 @@ Changes in 4.7.4
 * Added: Configuration file generated during setup can be downloaded.
 * Added: Latest translations.
 * Added: 'title' attribute to image tags.
+* Removed: Obsolete 'no widowed words' preference setting. If this feature is
+  needed it can be implemented directly with <txp:title /> tag.
 * jQuery 3.4.0.
 * PrismJS 1.16.0.