Pro 2.0 notes

Pro-Changes.md

@@ -3,6 +3,21 @@ Sidekiq Pro Changelog
 
 Please see [http://sidekiq.org/pro](http://sidekiq.org/pro) for more details and how to buy.
 
+
+2.0.0 (see mperham/sidekiq#2130 for progress)
+-----------
+
+- Batch IDs (bids) are now 14 char Base64-encoded strings, not 16
+  char hex-encoded strings.
+- Rework of the batch data model.  This results in a 25% reduction in
+  data size in Redis.  5000 batches go from 6260 -> 4611 KB in Redis and
+  creation is 10% faster.
+- Batch job errors no longer store the backtrace in Redis unless the
+  job's `backtrace` option is set.  This should result in another big data
+  size reduction.
+- Notifications must now be required first `require 'sidekiq/pro/notifications'`
+- Remove deprecated APIs.
+
 1.9.2
 -----------