As per the indications in the recent post by shann in this discussion thread SliTaz 5.0 is going to have the 64-bit kernel in addition to the regular 32-bit one. A welcome news for many SliTaz fans like me! I am wondering what the size of the iso is going to be with linux64 (SliTaz 4.0 is ~ 34MB). The package is available already. Not sure of the exact SliTaz 5.0 release date. As I can see from the roadmap it’s past its original schedule.
Update: As the time of writing, there is no schedule for SliTaz 5.0. You can still upgrade to the rolling version and use it. Here’s the discussion thread I started regarding this.