- Vitalik Buterin outlines Ethereum’s core technical and economic roadmap for the future at Devconnect.
- The inaugural Ethereum World Fair launches to showcase practical, real-world dApps and decentralized solutions.
Buenos Aires hosts the Devconnect 2025 conference starting today, a gathering organized by the Ethereum Foundation that brings together leading global Web3 developers and architects for a week. The event, held for the first time in Argentina, is based at the La Rural exhibition center in the Palermo neighborhood. The inaugural day coincides with the celebration of Ethereum Day, kicking off activities scheduled from 1:00 PM to 11:00 PM CET.
Kickoff with Vitalik Buterin’s Vision
The event opening featured an address by Vitalik Buterin, co-founder of Ethereum. Buterin delivered a welcome message to the thousands of attendees registered from over 130 countries. In his presentation, he outlined the technical, social, and economic principles that will guide the network’s development in the near future. This speech set the tone for a week dedicated to open research and the collaborative building of digital infrastructure tools.
Immediately following, Danny Ryan, a principal researcher at the Ethereum Foundation, delivered an official update on the network’s status. Ryan focused on recent technical progress, with special attention to areas like rollups, modular architecture, and consensus mechanisms.
His analysis included Ethereum’s potential role in developing infrastructure for smart cities, digital identity systems, and public services based on decentralized models.
Ecosystem Leaders and Local Talent
The program continued with a series of presentations by influential figures. Among the speakers were Stani Kulechov from Aave, Jesse Pollak from Base, Alex Gluchowski from Matter Labs, Steven Goldfeder from Offchain Labs, and Linda Xie from Scalar Capital.
The agenda also incorporated representatives from the Latin American community, such as Mariano Conti, former head of Oracles at MakerDAO. A variety of other experts completed the program, reflecting the technical and cultural diversity of the Ethereum ecosystem.
Launch of the Ethereum World Fair
Ethereum Day also served as the platform for the official launch of the first Ethereum World Fair. This space functions as a global exhibition of practical applications built on the network. The fair showcases solutions in domains like digital identity, micropayment systems, governance models, asset tokenization, and modular scalability.
The Ethereum Foundation emphasized that Buenos Aires is not just a host city, but a natural candidate to become a city driven by open technologies.
Immediate Impact on the City
The scale of the event became tangible throughout the city. Starting at Ezeiza Airport, some attendees reported that immigration control explicitly associated their entry with attendance at the Ethereum conference, which had visible promotions in the air terminal. Juan Benet, founder of Protocol Labs, commented on the personal significance of seeing Latin American countries adopting high-standard technological tools.
Ticket requests reached approximately 14,500, a figure that makes this Argentine edition the most attended in the history of the Ethereum Foundation. This massive interest generated immediate pressure on accommodation availability.
Developers like Alex Lebed reported difficulties finding lodging. The situation resulted in considerably elevated hotel prices, with basic category establishments charging over 500 dollars per night, a fact noted by several attendees on social media.
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