| Hard Fork to Protocol Version 11 ('van Rossem' Hard Fork) | Hard fork | Yes | none | 29/06/26, 08:26:39 |
| Reduce the committeeMinSize parameter from 7 to 5 | Parameter change | Abstain | none | 16/06/26, 08:47:03 |
| IO: Hydra | Treasury withdrawal | Yes | none | 16/06/26, 08:45:58 |
| Cardano Critical Integrations V2 | Treasury withdrawal | Yes | none | 16/06/26, 08:45:13 |
| IO & Midgard Labs: L2 Scalability Initiative | Treasury withdrawal | No | none | 24/05/26, 13:45:42 |
| IO & Ensurable Systems: Cardano Maintenance Initiative | Treasury withdrawal | Yes | none | 24/05/26, 13:44:16 |
| IO: Developer Experience Initiative | Treasury withdrawal | Yes | none | 24/05/26, 13:42:52 |
| IO: Cardano High Assurance Technical Collaboration | Treasury withdrawal | Yes | none | 24/05/26, 13:41:58 |
| IO & VacuumLabs: Enhancing Plutus - Performance, Correctness, and Usability | Treasury withdrawal | No | none | 24/05/26, 13:38:52 |
| IO: Consensus Initiative | Treasury withdrawal | Yes | none | 18/05/26, 06:15:45 |
| IO: Cardano Upgrades | Treasury withdrawal | Yes | none | 18/05/26, 06:04:32 |
| Approve Cardano Foundation as New Managing Entity of Project Catalyst | Info | Yes | none | 15/04/26, 06:42:46 |
| Cardano DeFi Liquidity Budget - Withdrawal 1 | Treasury withdrawal | Abstain | none | 09/02/26, 11:09:18 |
| Increase Transaction and Block Memory Units (Part 1 of 2) | Parameter change | Yes | none | 09/02/26, 11:07:36 |
| Name Protocol Version 11 hard fork - van Rossem | Info | Yes | none | 09/02/26, 11:07:00 |
| Add Constitutional Committee Member - Christina | Committee update | Yes | none | 16/12/25, 12:13:01 |
| Withdraw ₳70,000,000 for Cardano Critical Integrations Budget | Treasury withdrawal | Yes | published | 11/12/25, 11:37:21 |
| 2025 Net Change Limit Extension | Info | Yes | none | 11/12/25, 11:20:18 |
| Add Constitutional Committee Member | Committee update | Yes | none | 11/12/25, 11:10:09 |
| Cardano Critical Integrations Budget | Info | Yes | none | 01/12/25, 05:09:31 |
| CARDANO BLOCKCHAIN ECOSYSTEM CONSTITUTION v2.3 | New constitution | Yes | none | 31/10/25, 07:44:42 |
| Defining the Cardano Vision and Roadmap for 2025 and beyond | Info | Yes | none | 13/03/25, 15:17:55 |
| Decrease Treasury Tax from 20% to 10% | Parameter change | Yes | none | 02/03/25, 08:21:59 |
