Alpha releases are  very early versions of the next major update. They may be made available months before the beta release. They typically receive minimal testing by our team and have the potential to be unstable or be missing features planned for the first stable release.
When you report bugs and provide feedback on new features during the alpha release, we can catch bugs more quickly and improve features based on user feedback before the final stable release. Look at  the change log during the alpha release stage for a list of what is available in each alpha version.
Beta releases

Beta releases are early versions of the next major update. They follow the alpha release and are typically made available 2 to 4 weeks before the final stable release. They have been thoroughly tested by our team, but may still contain bugs that need to be fixed.
During the beta release stage, there is a freeze on any new code, aside from what’s needed to fix remaining bugs. This means that aside from bugs, any feedback on new features during the beta stage will be held until the next major update.
There will typically be a post on our blog announcing the first beta release.

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