Pro-Changes.md in sidekiq-5.0.5 vs Pro-Changes.md in sidekiq-5.1.0

@@ -2,9 +2,72 @@
 
 [Sidekiq Changes](https://github.com/mperham/sidekiq/blob/master/Changes.md) | [Sidekiq Pro Changes](https://github.com/mperham/sidekiq/blob/master/Pro-Changes.md) | [Sidekiq Enterprise Changes](https://github.com/mperham/sidekiq/blob/master/Ent-Changes.md)
 
 Please see [http://sidekiq.org/](http://sidekiq.org/) for more details and how to buy.
 
+HEAD
+---------
+
+- See the [Sidekiq Pro 4.0](Pro-4.0-Upgrade.md) release notes.
+
+
+3.7.1
+---------
+
+- Deprecate timed\_fetch.  Switch to super\_fetch:
+```ruby
+config.super_fetch!
+```
+
+
+3.7.0
+---------
+
+- Refactor batch job success/failure to gracefully handle several edge
+  cases with regard to Sidekiq::Shutdown.  This should greatly reduce
+  the chances of seeing the long-standing "negative pending count" problem. [#3710]
+
+
+3.6.1
+---------
+
+- Add support for Datadog::Statsd, it is the recommended Statsd client.  [#3699]
+```ruby
+Sidekiq::Pro.dogstatsd = ->{ Datadog::Statsd.new("metrics.example.com", 8125) }
+```
+- Size the statsd connection pool based on Sidekiq's concurrency [#3700]
+
+
+3.6.0
+---------
+
+This release overhauls the Statsd metrics support and adds more
+metrics for tracking Pro feature usage.  In your initializer:
+```ruby
+Sidekiq::Pro.statsd = ->{ ::Statsd.new("127.0.0.1", 8125) }
+```
+Sidekiq Pro will emit more metrics to Statsd:
+```
+jobs.expired - when a job is expired
+jobs.recovered.push - when a job is recovered by reliable_push after network outage
+jobs.recovered.fetch - when a job is recovered by super_fetch after process crash
+batch.created - when a batch is created
+batch.complete - when a batch is completed
+batch.success - when a batch is successful
+```
+Sidekiq Pro's existing Statsd middleware has been rewritten to leverage the new API.
+Everything should be backwards compatible with one deprecation notice.
+
+
+3.5.4
+---------
+
+- Fix case in SuperFetch where Redis downtime can lead to processor thread death [#3684]
+- Fix case where TimedFetch might not recover some pending jobs
+- Fix edge case in Batch::Status#poll leading to premature completion [#3640]
+- Adjust scan API to check 100 elements at a time, to minimize network round trips
+  when scanning large sets.
+
 3.5.3
 ---------
 
 - Restore error check for super\_fetch's job ack [#3601]
 - Trim error messages saved in Batch's failure hash, preventing huge