💥✴️ Solana has launched the important Alpenglow update on a community-built testnet.

This upgrade transitions the blockchain from its current consensus system to a new architecture designed to significantly reduce transaction finalization times and improve network responsiveness. Block validation will occur almost instantly.

Alpenglow is described as the most radical change to Solana's core protocol to date.

💥 Solana launches "Alpenglow": The biggest shift in its history

Solana has initiated the **Alpenglow** upgrade on a test cluster created by the community. This move marks the beginning of the transition to a completely new consensus architecture, designed to bring the network's speed to an almost instant level.

🚀 What changes with Alpenglow?
This update is described as the deepest change to Solana's main protocol since its inception. Its main pillars are:

* **Almost instant finality:**

Transactions that previously took about 12 seconds to be considered irreversible will now reach finality in approximately **150 milliseconds**. This is an improvement of nearly 100 times in confirmation speed.

* **Goodbye to the old system:** Alpenglow replaces legacy components like *TowerBFT* and parts of the original *Proof-of-History* (PoH) design with a more modern and efficient structure.

* **Votor and Rotor:** The new system is divided into two key protocols:

* **Votor:** Accelerates consensus through rapid voting (even off-chain).

* **Rotor:** Optimizes how data propagates through the network to eliminate bottlenecks.

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