SIP-044 & 045 have passed with ~99.99% of voting power cast in favor of activating Clarity 6 and Bitcoin Staking on Stacks.
As part of this network upgrade, expected at Bitcoin block 960230, annual STX inflation will increase from ~6.4% to 7.82% in 2026, in line with the prior expectation of 7%.
The upgrade restores the coinbase block reward to 1,000 STX per Bitcoin block, the level in place before the scheduled reduction in April 2026. This rate is provisional for the PoX-5 bootstrap phase (approximately one year). Based on observed PoX-5 economic performance, an updated emissions study -reviewed by the Economic CAB - will determine the long-term rate before the PoX-6 upgrade, which requires its own SIP and community vote. SIP-031 Endowment emissions are unchanged.
Under the current schedule, annual inflation peaks at ~7.8% in 2026–2027, then declines every year as SIP-031 emissions wind down: 2028 (6.31%), 2029 (5.23%), 2030 (3.69%), and 2.14% from 2031 onward, when only the coinbase reward remains.
As covered at length in SIP-045, the proposed issuance remains below the 5-year median emission rate of the Top 50 crypto projects (8.17%) across the schedule. 2026 issuance sits modestly above, at the 52nd percentile. From 2028 onward, inflation declines each year under the current schedule.
The hard fork to instantiate these changes is expected on July 29. Access complete audited voting results here:
stacks.foundation/clarity-st…