Flowvest uses fixed-duration periods from the vest's start timestamp, not calendar months or local month boundaries.
In V1.1 you choose a plan at creation; each vest keeps one fixed period length for its whole life. Examples: a Monthly plan uses 30 days per period (2,592,000 seconds) with 3 releases; a Biweekly plan uses 14 days per period (1,209,600 seconds) with 6 releases.
Unlocked amounts become claimable at period boundaries—the end of each interval—counted forward from start time, in discrete steps rather than a smooth stream.
That yields predictable, fully verifiable on-chain behavior, independent of month length, leap years, or timezone differences.
The core logic of the protocol cannot be altered.
Multi-signature can only adjust risk parameters (such as TVL caps and ranges), it cannot access user funds or modify existing vests.
As the protocol matures, control permissions may be gradually reduced or completely removed.