Weekly Blockchain Node Upgrades Changelog - 2025-12-18 (#904)

* Add weekly changelog for 2025-12-18

* add product updates

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Co-authored-by: Sahil Aujla <[email protected]>

Author: alchemy-bot

fern/changelog/2025-12-18.md

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+## Rollups
+
+* Mythical Games launching their first set of in-game items on Mythos Mainnet, using the rollup to power their NFT marketplace for popular mobile games like NFL Rivals.
+* World launched a redesigned World App with new features including the ability to receive paychecks directly in the app and pay merchants using a Visa card that debits from World App accounts.
+* XMTP launched encrypted messaging on the World App, powering [World Chat](https://world.org/blog/announcements/the-new-world-app-secure-chat-global-payments-and-mini-apps-for-everyone).
+* XMTP launched on Base App, bringing encrypted messaging capabilities to the platform.
+
+## Node
+
+**Upgrades**
+
+* Aptos Mainnet: Aptos [aptos-node-v1.38.5](https://github.com/aptos-labs/aptos-core/releases/tag/aptos-node-v1.38.5)
+* Bsc Mainnet: Reth [v0.0.6-beta](https://github.com/bnb-chain/reth-bsc/releases/tag/v0.0.6-beta)
+* Polygon Amoy: Heimdall [v0.5.3](https://github.com/0xPolygon/heimdall-v2/releases/tag/v0.5.3), Bor [v2.5.5](https://github.com/maticnetwork/bor/releases/tag/v2.5.5)
+* Polygon Mainnet: Bor [v2.5.6-beta3](https://github.com/0xPolygon/bor/releases/tag/v2.5.6-beta3), Heimdall [v0.5.3](https://github.com/0xPolygon/heimdall-v2/releases/tag/v0.5.3)