# Cardano's Van Rossem Hard Fork Clears Technical Approval as Ratification Window Opens

> Cardano's van Rossem hard fork has received the green light from the Technical Steering Committee, with ratification possible as early as June 23 and enactment by June 28 at the earliest.

**Type:** article · **Category:** Crypto · **Published:** 2026-06-20 · **Source:** TrendKia
**Canonical:** https://trendkia.com/en/crypto/cardano-ke-van-rossem-hard-fork-ko-mili-mnjuri-juna-julai-men-ahama-tarikhen-taya-2091 · **Language:** English
**Tags:** Cardano, Hard Fork, Van Rossem, Blockchain Upgrade, Hydra, Crypto Governance, ADA, Node Readiness

The van Rossem hard fork on the Cardano network has moved decisively closer to launch. The Hard Fork Working Group completed a positive Mainnet go/no-go assessment on June 15. The Technical Steering Committee followed up the next day on June 16, ratifying that assessment and formally confirming that all mandatory readiness criteria had been satisfied. With that declaration, the committee recommended advancing the proposal to an on-chain governance action.

## The Timeline: Key Dates From Late June Through July
The governance schedule now places June 23 as the earliest possible ratification date, with June 28 as the earliest the hard fork could be enacted on the network. Current expectations, however, suggest that both milestones are more likely to arrive later in the governance action lifecycle. Ratification could extend as late as July 18, with corresponding enactment dates running through July 23.

> 

## Node Readiness Numbers Keep Moving in the Right Direction
On the infrastructure side, adoption of the required software continues to grow. PoolTool data shows that 62% of nodes are now self-reporting as running v11.0.1, an 8% jump compared to the previous week. At the same time, 81% of block production in the current epoch is already occurring on Protocol Version 11, a 5% improvement over recent figures.

Cexplorer's hard fork readiness metrics add further weight to this picture. Roughly 89% of all block production over the past five days was generated by v11 nodes, a 4% increase, signaling that the broader ecosystem is closing in on the adoption threshold needed for a smooth transition.

## Hydra 2.2.0 Arrives With Partial Fanout
This week also brought the release of Hydra 2.2.0, and its standout addition is Partial Fanout. Before this update, the number of UTxOs a Hydra head could hold was strictly bounded by whatever could fit inside a single fanout transaction. Partial Fanout removes that ceiling entirely, creating meaningful new headroom for scalability within Cardano's Layer 2 infrastructure.

## What this means for you
- **For ADA holders:** The van Rossem hard fork's steady progress strengthens Cardano's technical foundation, which could positively influence ADA's long-term utility and market standing.
- **For Cardano developers:** The Partial Fanout feature in Hydra 2.2.0 removes the previous UTxO cap on Hydra heads, making it significantly more practical to build larger and more complex applications on Cardano's Layer 2.

## Questions & Answers

### 1. What is the van Rossem hard fork?
It is a major upgrade to the Cardano network that received a positive go/no-go assessment from the Hard Fork Working Group on June 15, then ratified by the Technical Steering Committee on June 16 for progression to an on-chain governance action.

### 2. What are the earliest possible dates for ratification and enactment?
The governance timeline sets June 23 as the earliest possible ratification date and June 28 as the earliest the hard fork could be enacted.

### 3. How late could the process extend?
Ratification could run as late as July 18, with corresponding enactment dates through July 23.

### 4. How many nodes are ready for the upgrade right now?
PoolTool reports that 62% of nodes are self-reporting v11.0.1, and 81% of current epoch block production is already occurring on Protocol Version 11.

### 5. What does Cexplorer's data show?
Cexplorer shows that roughly 89% of block production over the past five days came from v11 nodes, a 4% increase, indicating strong and growing ecosystem-wide readiness.

### 6. What is Partial Fanout in Hydra 2.2.0?
Partial Fanout removes the previous restriction that capped the number of UTxOs a Hydra head could hold to whatever fit inside a single fanout transaction, unlocking greater scalability for Cardano's Layer 2 infrastructure.

---
_TrendKia — Har trend, sabse pehle.. Machine-readable view; canonical HTML at the URL above._