README.md in lockbox-1.4.1 vs README.md in lockbox-2.0.0

@@ -33,11 +33,11 @@
 
 ```sh
 LOCKBOX_MASTER_KEY=0000000000000000000000000000000000000000000000000000000000000000
 ```
 
-or add it to your credentials for each environment (`rails credentials:edit --environment <env>` for Rails 6+)
+or add it to your credentials for each environment (`rails credentials:edit --environment <env>`)
 
 ```yml
 lockbox:
   master_key: "0000000000000000000000000000000000000000000000000000000000000000"
 ```
@@ -999,21 +999,9 @@
     remove_column :users, :encrypted_name, :text
     remove_column :users, :encrypted_name_iv, :text
     remove_column :users, :encrypted_email, :text
     remove_column :users, :encrypted_email_iv, :text
   end
-end
-```
-
-## Upgrading
-
-### 1.0.0
-
-`encrypts` is now deprecated in favor of `has_encrypted` to avoid conflicting with Active Record encryption.
-
-```ruby
-class User < ApplicationRecord
-  has_encrypted :email
 end
 ```
 
 ## History