No Changelog

[sonalkr132]

After update of activeuuid 0.5.0 to 0.6.1 my schema.rb file changed from:

-  create_table "ahoy_events", force: true do |t|
-    t.uuid     "visit_id"
+  create_table "ahoy_events", force: :cascade do |t|
+    t.uuid     "visit_id",   limit: 16

force: true changed to force: :cascade because of update of activerecord. However, I can't find any explanation for addition of limit: 16. Finding this kind of info would have been trivial if activeuuid maintained a changelog as well.
Read more on why?