v5.0.0

• Bump minimum Java version from 1.5 to 8
• Changed PUT/POST request bodies from url-form encoded to JSON encoded
• Added support for SmartRate
• Added support for Tax Identifiers
• Added Checkstyle as a plugin and linted the project
• Added new rerate shipment function
• Bumped project dependencies
• Include Java version in User-Agent header
• Remove items and containers which have not been supported for some time
• Corrects references of contact@easypost.com to support@easypost.com
• Updates the connection timeout to 30 seconds from 20 and the request timeout to 60 from 40

4.0.4

Fix version attribute in EasyPost class, and fix user-agent string.

4.0.3

• Change PUT requests to be properly-encoded
• Handle null previous_attributes

We strongly recommend that all users upgrade to this release as soon as possible. PUT endpoints will no longer be accessible using previous releases very soon.