Add note about changes from Rusoto 0.24.0 to 0.25.0.
@@ -51,7 +51,9 @@ rusoto_s3 = "0.26.0"
## Migrating from Rusoto 0.24.0 to 0.25.0 or later
-See the [Rusoto 0.25.0 release notes](https://github.com/rusoto/rusoto/releases/tag/rusoto-v0.25.0) for more information.
+As of Rusoto 0.25.0, the `rusoto` crate is deprecated. This decision was made because the single crate implementing all AWS services was too large to compile, especially on TravisCI and Appveyor. The new main crate is `rusoto_core` and all services now have their own crate.
+
+See the [Rusoto 0.25.0 release notes](https://github.com/rusoto/rusoto/releases/tag/rusoto-v0.25.0) for more information including how to migrate from Rusoto 0.24.0 to Rusoto 0.25.0.
## Usage
