Coinbase will upgrade all MATIC tokens to POL from October 14 to 17, and during the migration period, rewards for staking MATIC will not accumulate.

Pi Network has officially launched Pi Hackathon 2025, marking its first major developer challenge following the debut of the Open Network. This hackathon invites developers to design and launch Pi-powered applications that deliver real-world utility and help evolve the ecosystem—with a total prize pool of 160,000 Pi. Building on the innovation momentum from Pi2Day 2025, the competition encourages a broad range of utility-driven ideas, from daily-use tools to entirely new app concepts. All submissions must meet the Mainnet Listing Requirements and provide tangible value to the Pi community. Incentives & Prizes: 1st Place: 75,000 Pi 2nd Place: 45,000 Pi 3rd Place: 15,000 Pi Up to 5 Honorable Mentions: 5,000 Pi each Key Dates: August 15: Registration opens and team formation begins August 21: Hackathon officially starts September 19: Midpoint check-in (optional, but may yield mentorship and exposure) October 15: Final submissions due, including app listing and demo video Developers are encouraged to leverage Pi App Studio, Brainstorm, the Developer Portal, and open-source resources (PiOS), as well as AI tools, to build and refine their ideas.

Starknet announced the start of the Re{solve} Hackathon on September 15, running for one month with a prize pool of over $50,000. Participants are encouraged to build practical solutions, bring them to production, and compete for rewards.

Starknet unlocks tokens at 12 AM UTC.

Sei will unlock 55,560,000 SEI tokens on October 15th, constituting approximately 1,15% of the currently circulating supply.