We have been issuing new alpha releases over the preceding months, and various people have been installing them from packages.sil.org. Our release schedule hasn’t been the same as for the Windows version, but we have just issued alpha8 packages that correspond to the same point in development as the Windows alpha 3. These will be the last alpha releases for either platform.
The first Windows beta will be issued just before Christmas (we hope) and the Linux beta soon after.
We’re grateful to all the people who have helped us with testing, by trying out each new FieldWorks package as it became available, reporting bugs diligently and giving us general feedback. Thanks!