<p>Changelog of the proposed runtime: </p>
<ul>
<li>Add Ledger support, thanks to the Generic Ledger App <a href="https://wiki.polkadot.network/docs/ledger">https://wiki.polkadot.network/docs/ledger</a> </li>
<li>One Token Model: Allows users to participate in funding rounds using one token only - such as USDC, USDT, or DOT </li>
<li>Allow transaction fee payment in DOT, USDt and USDC! Add XCM Runtime API to have a better cross-chain fee estimation</li>
</ul>

Changelog of the proposed runtime:

*   Add Ledger support, thanks to the Generic Ledger App [https://wiki.polkadot.network/docs/ledger](https://wiki.polkadot.network/docs/ledger)
*   One Token Model: Allows users to participate in funding rounds using one token only - such as USDC, USDT, or DOT
*   Allow transaction fee payment in DOT, USDt and USDC! Add XCM Runtime API to have a better cross-chain fee estimation

This proposal seeks reimbursement from the Polkadot treasury to cover Subscan's operation and maintenance costs from July to December 2022. Subscan plays a vital role as a block explorer and analytics tool for the Polkadot network. The reimbursement will cover expenses including server infrastructure, security measures, and personnel costs. Server infrastructure costs are estimated to support the network's smooth operation. Security measures ensure user data safety, while personnel costs reflect the dedicated team needed to maintain Subscan's functionality. This support ensures Subscan's continuous operation and contributes to the growth and development of the Polkadot network.

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- **Problem Statement:** Simplifying participation in funding rounds and improving cross-chain fee estimation for users.
- **Significance:** Enhancing user experience and accessibility in the Polkassembly council motions.
- **Proposed Solution:** Adding Ledger support, implementing a One Token Model, and enabling transaction fee payment in DOT, USDT, and USDC.
- **Expected Outcomes:** Streamlined funding participation, improved cross-chain fee estimation, and increased user convenience.

Runtime upgrade to Polimec 0.9.0

No Active Proposals