As of October 30, the community vote on SIP-033: Clarity 4 — High-Demand New Built-ins has officially concluded. SIP-033 passed with near-unanimous support: over 208.4 million STX voted in favor of the Clarity 4 upgrade, representing 99.99% of all participating tokens. In total, 185 wallets participated in the vote. To pass, SIP-033 required a minimum of 80 million stacked STX participating, with at least 80% voting in favor.

Over 208 million STX were in favor of SIP-033 and technical Rider SIP-034, representing 99.99% of all voting power. This outcome reflects the ecosystem’s alignment around improving performance, flexibility, and developer experience ahead of the upcoming Clarity 4 release.

To maintain neutrality and accuracy in the voting process, results are reviewed by the Ballot.gg team, Signal21, and an independent Stacks contributor. This multi-party approach ensures transparency and minimizes bias across all data sources. You can review STX-specific voting data via Signal21’s custom dashboard.

Note that Signal21’s data reflects a minor discrepancy, as it includes one yes transaction (1 STX) and one no transaction (14 STX) that were completed outside the official voting window to test the dust transaction voting addresses.

The Clarity 4 hard forkactivated on testnet at block 109,280. The mainnet fork is expected to follow at block 923,222, currently projected for Monday, November 11th, at approximately 16:00 UTC.

⚠️ Note: A full genesis sync will be required if you haven’t upgraded prior to the mainnet fork.

SIP-033 introduces a series of updates to Clarity aimed at improving developer experience, performance, and expressiveness. Highlights include:

• Faster execution and lower overhead for on-chain performance
• Expanded features for cleaner, more expressive code
• Smoother developer experience with refined syntax and better tooling
• Backward compatibility for all existing contracts

SIP-034 is a rider to SIP-033 that refines how block limits are managed on Stacks. Highlights include:

• Introduces a new tenure change control transaction variant that targets specific dimensions of the block budget
• Allows fast, high-cost transactions to be mined even under conservative cost models
• Improves network efficiency and flexibility in handling diverse transaction types
• Builds directly on SIP-033 for a smoother, more adaptive upgrade path

Thank you to everyone who voted, shared feedback on the SIP, and tested the new voting platform. If you did not yet explore the draft Clarity 4 proposal, this is a great time to dive in and read more about it prior to the upgrade.