note to the migration page

2015-08-18 20:03:03 -07:00 · 2015-08-18 20:03:03 -07:00 · e18d6b691d
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--- a/docs/migration.md
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@ -6,6 +6,10 @@ group: migration

 Bootstrap 4 is a major rewrite of almost the entire project. The most notable changes are summarized immediately below, followed by more specific class and behavioral changes to relevant components.

+{% callout info %}
+**Heads up!** This will be in flux as work on the v4 alphas progresses. Until then consider it incomplete, and we'd love pull requests to help keep it up to date.
+{% endcallout %}
+
 ## Summary

 Here are the big ticket items you'll want to be aware of when moving from v3 to v4.