diff --git a/3.0-Upgrade.md b/3.0-Upgrade.md
index d3bc0992..df8921e0 100644
--- a/3.0-Upgrade.md
+++ b/3.0-Upgrade.md
@@ -24,6 +24,8 @@ changes a few data elements in Redis.  To upgrade cleanly:
   - `Sidekiq::Worker#retries_exhausted` replaced by `Sidekiq::Worker.sidekiq_retries_exhausted`
   - `Sidekiq::Workers#each` has changed significantly with a reworking
     of Sidekiq's internal process/thread data model.
+* `sidekiq/api` is no longer automatically required.  If your code uses
+  the API, you will need to require it.
 * Redis-to-Go is no longer transparently activated on Heroku so as to not play
   favorites with any particular Redis service. You need to set a config option
   for your app: