Below is the 2.7 release schedule:
2/21 - Code Freeze (9PM PST)
2/27 - Pre-release1 released & community testing begins
3/6 - Pre-release1 testing ends
3/13 - Pre-release2 released & community testing begins
3/20 - Pre-release2 testing ends
3/22 - Release
Please remember that all major changes should be committed approximately 1 week before the code freeze.