A dense set of crypto, AI and macro developments emerged between Sept. 20 and Sept. 21. Saudi Arabia’s central bank said it is no longer part of the mBridge cross-border central bank digital currency project, adding that the move was not tied to pressure from the United States. In the U.S., Coinbase Derivatives filed a rulebook tied to planned single-stock perpetual futures, but the proposed $100 billion market-cap threshold would exclude Coinbase itself, along with Strategy and smaller crypto-linked equities. On-chain activity also drew attention: meme trading platform gmgn moved 23,550 BNB in fee revenue to Pionex over the past week, the TRUMP team shifted another large batch of tokens to BitGo, and a whale that had previously sold ETH at a profit bought back $20 million worth of Ether from Binance. Elsewhere, Token Unlocks flagged a heavy week ahead for XPL, H, SOSO and several other tokens, while ZetaChain governance approved a proposal to migrate ZETA to a native Solana SPL token on a 1:1 basis. The update stream also included a revised Staked SEI ETF filing from Canary Capital, comments from CZ on how he runs his X account, confirmation that Vitalik Buterin will speak remotely at ETHShanghai 2026, and new projections from Wall Street banks that U.S. Treasury bill issuance could reach roughly $1 trillion over the next year.

Zhipu said on Sept. 21 that it has officially open-sourced ZCode after completing remediation tied to product security issues previously raised by the community. The company said it opened the codebase for public oversight after finishing the fixes. According to Zhipu, ZCode v3.14.0 removed the Repo Wiki feature and cut off the pathway for generating and uploading local repository snapshots. After the remediation work, the company invited the China Academy of Information and Communications Technology and NSFOCUS to conduct security audits. Zhipu said both institutions confirmed that related cloud-side data had been cleared, and that the new client version did not contain a functional path that could trigger local repository snapshots or external file transmission. Addressing earlier concerns around code data, Zhipu said again that the relevant code data had "not been retained and has never been used for model training." The company also said ZCode will set up a standing security vulnerability feedback mechanism and provide rewards to developers based on issue severity.

Zhipu, the Chinese large-model company listed as 2513.HK, said its AI coding tool ZCode will soon be formally open-sourced. The company described the move as the first step in responding to outside concerns over how ZCode handled data, and said it plans to push the product further toward a community-driven model by inviting users to download the code, inspect it, and help improve it. Zhipu said it has asked the China Academy of Information and Communications Technology to conduct a security audit focused on data retention. According to the company, technical testing confirmed that the zcode-prod Alibaba Cloud OSS bucket held zero cloud data. It also said the ZCode v3.14.0 client has completed security remediation, including removal of the Repo Wiki feature and the cutoff of the local repository snapshot generation and upload path. Separately, NSFOCUS reviewed the case and confirmed that the related data objects and the storage bucket itself had been deleted. The statement follows earlier social media allegations that ZCode silently uploaded users’ programming and development data without permission. On Sept. 18, Zhipu said the controversy stemmed from a codebase indexing feature that was enabled by default, and that uploaded data was used only to generate RepoWiki before being destroyed. On Sept. 20, Zhipu’s MaaS platform said a data non-retention feature would go live soon.