This is a runtime release for Acala that upgrade polkadot-v0.9.18

Release Note: https://github.com/AcalaNetwork/Acala/releases/tag/2.5.0

# Referendum

* https://acala.subscan.io/referenda/9
* https://acala.subsquare.io/democracy/referendum/9

The proposal outlines developments for Subsquare and Dotreasury, including retroactive work and new features. Subsquare enhancements involve Collectives support, governance statistics, and UI improvements. Dotreasury plans for a dark mode, spend statistics, and better filtering options. With a comprehensive budget estimate, the proposal aims to enhance user experience and functionality across both platforms within the Polkadot ecosystem.

Create 78 promotional and educational videos in Chinese about Polkadot ecosystem.

- Acala has released a new version called 2.5.0.
- This version upgrades something called polkadot-v0.9.18.
- There is a referendum happening related to Acala.
- You can find more information about the referendum on the provided links.
- If you want a quick summary, you can read the "tl;dr" section.

Runtime Upgrade - Upgrade Polkadot-v0.9.18

No Active Proposals