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Coldcard has released the latest firmware 5.6.1 (Mk4/Mk5) and 1.5.1Q (Q). This update is based on a three-week security review following the emergency fix on July 31, addressing security risks brought by the previous mnemonic generation attack. Each newly generated mnemonic must now include at least one source of user entropy, including at least 65 irregular keystrokes, 50 physical dice throws, or 128 physical coin flips, combined with fresh entropy provided by STM32 TRNG, SE1, and SE2. The new firmware also adds instant staged PSBT verification before signing, strengthens USB connection and firmware update boundaries, improves Delta Mode isolation mechanisms, fixes active wallet backup issues, enhances random number generator initialization and fault checking, adjusts SIGHASH default settings, and includes multiple security and correctness improvements. Coldcard stated that this update aims to further reduce the risk of device attacks. The official reminder notes that updating the firmware cannot fix existing mnemonics generated by previously affected firmware. If users' mnemonics fall within the scope of this security advisory, they should first update the device, then generate and verify a completely new mnemonic, and migrate funds to the new wallet. Coldcard recommends that all Mk4, Mk5, and Q users update their devices promptly and verify the signature of the downloaded firmware.
Cash Cat has announced the launch of its meme coin launchpad, letscash.fun. The project team stated that the platform originated from the community's demand for a fair launch mechanism following the listing of Robinhood Crypto, and was driven by community development.Cash Cat indicated that the platform operates in two modes: In Creator Mode, 70% of tokens go to the creator and 30% to the protocol; in Self-Destruct Mode, similarly, 70% is used to buy and burn tokens. The 30% obtained by the protocol will be used to burn cash-cat:native, increase treasury funds, and support development.The platform is powered by Uniswap v4, employing a permissionless, decentralized mechanism that is immutable after deployment. It is currently undergoing its final security review by Hyacinth Audits and SB Security.
DOG Mode is an alternative Bitcoin client that relaxes the default relay policy affecting Ordinals and Runes transactions, but does not alter Bitcoin’s consensus rules. This proposal runs counter to BIP-110, which previously sought to tighten Bitcoin’s rules to limit on-chain data.
据币安官方公告，币安于 2026 年 7 月 15 日在 Capital Connect 平台上线意向表达（Express Interest Only）模式，这是行业首个连接专业交易团队与机构投资者的投资组合市场。该模式允许尚未持有相关牌照的交易团队向已验证机构投资者展示过往业绩，投资者可提交非约束性意向表达，交易团队将收到匿名化需求信号提示。意向表达模式不支持实际投资，上架有效期为六个月，经审核后可延长最多三个月。投资者须完成 KYB 验证且 VIP 等级达 3 级或以上方可访问该功能。
Odaily News According to the official announcement, Binance has introduced the Expression of Interest (EIO) mode on Capital Connect, the industry's first portfolio marketplace connecting professional trading teams with institutional investors. The EIO mode provides a compliant pathway for trading teams to showcase their track records to institutional investors, while enabling investors to discover emerging strategies at an early stage before they become investable. EIO portfolios are only accessible to whitelisted investors and do not support investment. Investors can submit non-binding expressions of interest, and trading teams will receive anonymous demand signals via email. Enhanced performance metrics, portfolio composition data, and trading team information are also provided on a quarterly basis.