So here's the entire story.
v1.14 and v1.15 already have the Time of Use Load Shifting or "Time-Based Control" as Tesla calls it. While in the internal pilot, they found a few bugs so they are fixing it. There is a flag in the 1.14 and 1.15 that they can switch on or off for this feature, so right now it's turned off until they have fixed the bugs and completed their internal validation. They are thinking between 2 to 4 weeks to fix the bug, so when it's release they will turn on the flag.
This is only for Powerwall no PV users.