README.md in pg-aws_rds_iam-0.4.0 vs README.md in pg-aws_rds_iam-0.4.1
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# PG::AWS_RDS_IAM
[](https://rubygems.org/gems/pg-aws_rds_iam)
 
-[](https://haines.github.io/pg-aws_rds_iam/)
+[](https://www.rubydoc.info/gems/pg-aws_rds_iam)
`PG::AWS_RDS_IAM` is a plugin for the [`pg` gem](https://rubygems.org/gems/pg) that adds support for [IAM authentication](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/UsingWithRDS.IAMDBAuth.html) when connecting to PostgreSQL databases hosted in Amazon RDS.
IAM authentication allows your application to connect to the database using secure, short-lived authentication tokens instead of a fixed password.
This gives you greater security and eliminates the operational overhead of rotating passwords.