Release Date: September 20, 2020
Install Link: https://login.salesforce.com/packaging/installPackage.apexp?p0=04t0V000000xFAw
Soapbox Mailer 1.12 includes the following changes:
Replaces the existing Amazon Signature v3 with v4, requires all existing and new users to use the Named Credential functionality within Salesforce instead of the existing Amazon Settings tab.
If you have questions about the new features, let us know!