updated v7 release notes

HISTORY.md

@@ -6,7 +6,7 @@
     * extensions
     * single blocks palette option, thanks, Michael!
     * web-serial support, thanks, Dariusz Dorożalski!
-    * hide custom helper blocks in palette, also use "hide/show var" primitive on custom blocks (same as on primitives)
+    * hide any block, including variables and custom helper blocks in palette, also use "hide/show var" primitive on custom blocks (same as on primitives)
     * user defined custom block palettes
     * PWA, thanks, Joan and John, for pioneering this at Robolot and in Mircoblocks!
     * new "blocksZoom=n" url parameter, thanks, Bernat!
@@ -15,6 +15,7 @@
 * **Notable Changes:**
     * saved projects remember the last edited sprite
     * libraries no longer rely on the JSF primitive, project may need to re-import their libraries to run without having to enable JS extensions
+    * bulk hide/show arbitrary blocks in the palette via the palette's context menu (instead of the primitive blocks' context menus) 
     * retired Leap Motion library, took out Hummingbird library (get the current one from Birdbrain)
     * display blocks with their error messages for custom blocks, thanks, Michael!
     * made scrollbars thinner by default and slightly transparent in flat design mode