> Click [here](../concepts/grid3_components.md) to see the complete TFGrid Component List

# What's new on ThreeFold Grid v3.x

The ThreeFold Grid v3.x is packed with exciting new features and enhancements. This marks a significant milestone in the evolution of our decentralized grid infrastructure, bringing even more power, flexibility, and innovation to our users. In this introduction, we will highlight some of the key new features that make ThreeFold Grid v3.x a game-changer in the world of decentralized technologies.

## TFChain v3.x

[__TFChain v3.x__](../concepts/tfchain.md) is a decentralized chain that holds all the information about the entities comprising the ThreeFold Grid. It operates on the Parity Substrate blockchain infrastructure.

### Key Features of  TFChain v3.x:

- Your identity and proofs/reputation are stored on our blockchain.
- All information about TFGrid, including nodes and farmers, is made available.
- A GraphQL interface that allows easy querying of the blockchain.
- Provide Side chains supports, enabling unlimited scalability and allowing others to run their own blockchains.
- TFT now exists on TFChain, addressing scalability issues with Stellar.
- A bridge facilitates the transfer of TFT between Stellar and TFChain.
- Blockchain-based provisioning process/
- TFChain API that is available in JavaScript, Golang, and Vlang.
- 'Infrastructure as Code' (IAC) framework support for:
    - Terraform
    - Kubernetes, Helm, Kubernetes
    - Ansible (planned)
- Support for App deployment using CapRover
- The use of RMB (Reliable Message Bus) that ensures secure peer-to-peer communication with Zero-OS.

Please note that the above list summarizes the key features introduced in TFChain v3.0.

## Proof of Utilization: Enhancing Your Cloud Experience

Experience the benefits of Proof of Utilization, a user-friendly feature that optimizes your cloud usage and rewards your pre-purchases. Here are the key features:

### Key Features:

- __Hourly Resource Utilization__: Your resource utilization is accurately captured and calculated on an hourly basis, ensuring transparency and precision in tracking your cloud usage.

- __Secure Storage on TFChain__: Your resource utilization data is securely stored in TFChain, our dedicated blockchain, providing a reliable and tamper-proof record of your usage history.

- __Automated Discount System__: Our innovative automated discount system acknowledges your pre-purchased cloud needs. Based on the amount of TFT (ThreeFold Tokens) you hold in your account and the duration you maintain these tokens, you can enjoy significant price discounts.

- __Personalized Discounts__: The discount you receive is customized to your TFT holdings and usage patterns. For instance, if you hold TFT tokens equivalent to 12 months' worth of usage, you receive a generous 40% discount. Holding TFT tokens for 36 months unlocks an impressive 60% discount on your cloud services.


### New TFGrid Explorer UI

- The TFGrid Explorer v3.x has an updated user interface that is now nicer and easier to use.
- It utilizes the GraphQL layer of TFChain.