Cardano's ADA payments debut in 137 Swiss supermarkets as upgrades loom
Cardano has witnessed significant developments in March 2026, from real-world adoption to technical enhancements. A pilot program now enables shoppers to pay with ADA at all 137 SPAR supermarkets in Switzerland. Meanwhile, the network prepares for a hard fork and the launch of a privacy-focused sidechain by month's end.
SPAR Switzerland collaborated with the Cardano Foundation and DFX.swiss to implement ADA payments across its 137 branches. The system went live in March, allowing customers to pay directly from native wallets without intermediaries or custodians. Transaction fees for merchants decreased by approximately two-thirds compared to traditional card networks.
The move signifies the first large-scale crypto payment solution in Swiss retail, with no other supermarkets or chains adopting similar systems. Processing occurs in real time, providing a faster and cheaper alternative to legacy payment methods.
On the technical front, Cardano's 'van Rossem' hard fork is scheduled for late March. This upgrade will bolster Plutus smart contract performance and enhance node security. The Midnight sidechain, focused on privacy and compliance, will also launch on mainnet by the end of the month.
Elsewhere, five key organizations united under the Pentad framework to align strategic direction. Grayscale increased Cardano's weighting in its Smart Contract Platform Fund to 20.2%, making it the third-largest holding. However, tensions arose when Holger Mesiats, CTO of Iagon, accused founder Charles Hoskinson of misrepresenting funding for Fireblocks integration. Hoskinson also criticized the US Digital Asset Market Clarity Act (H.R. 3633) during a livestream.
In a separate incident, an investor sold their entire ADA stake—worth $100,000—citing frustration over ongoing community disputes.
The SPAR partnership brings Cardano closer to mainstream use, while upcoming upgrades aim to fortify its infrastructure. With lower fees and faster transactions, ADA payments could attract more retailers. The network's growth, however, remains contingent on both technical progress and community harmony.
