7.0 notes, fix CI

README.md

@@ -52,6 +52,8 @@ Sidekiq and see its features in action.  Here's the Web UI:
 Want to Upgrade?
 -------------------
 
+Upgrade notes between each major version can be found in the `docs/` directory.
+
 I also sell Sidekiq Pro and Sidekiq Enterprise, extensions to Sidekiq which provide more
 features, a commercial-friendly license and allow you to support high
 quality open source development all at the same time.  Please see the

docs/7.0-Upgrade.md

@@ -0,0 +1,25 @@
+# Welcome to Sidekiq 7.0!
+
+Sidekiq 7.0 contains some breaking changes which streamline proper operation
+of Sidekiq. It also drops support for EOL versions of Ruby and Rails.
+
+## What's New
+
+This release has major breaking changes.  Read and test carefully in production.
+
+- Redis 6.0+ and Ruby 2.7+ are now required.
+
+## Upgrade
+
+As always, please upgrade Sidekiq **one major version at a time**.
+If you are already running Sidekiq 6.x, then:
+
+* Upgrade to the latest Sidekiq 6.x.
+```ruby
+gem 'sidekiq', '< 7'
+```
+* Fix any deprecation warnings you see.
+* Upgrade to 7.x.
+```ruby
+gem 'sidekiq', '< 8'
+```

lib/sidekiq/cli.rb

@@ -11,7 +11,6 @@ require "fileutils"
 require "sidekiq"
 require "sidekiq/launcher"
 require "sidekiq/util"
-require "gem/version"
 
 module Sidekiq
   class CLI