Sails version 1.0 has not officially been released, but a beta version is available for those who want to try out new features or get a head start on the upgrade process. This version is already being used in some production applications, it's feature-locked, and it's the final release candidate. If you're starting a greenfield project, we recommend taking v1.0 for a spin.
But be aware that, until the new version has been formally released, there may still be a few lingering compatibility problems and less than beautiful error messages. We're actively monitoring this release in a handful of large Node.js/Sails deployments to catch any last-minute performance issues. In the mean time, we recommend that sensitive production applications continue to use the latest stable version from NPM for a few more weeks.
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.