Sails version 1.0 has not officially been released, but is available for preview for those who want to try out the bleeding edge or get a head start and see what the upgrade process will look like. Please note that this version is not intended for use in production applications and still has some known issues. We recommend Sails apps use the latest stable version from NPM until v1.0 has been formally released.
For more detailed information about upgrading your Sails app to v1.0, see the upgrade guide in the 1.0 docs. Just be aware that this migration guide is a work-in-progress, and may have some gaps in information as we continue updating the docs in the coming weeks.
If you have specific questions or concerns about how the v1.0 release will affect your app, just send us a note.