France’s proposed crypto tax changes would make a move from Bitcoin or Ether into certain stablecoins a taxable disposal, even if the investor never withdraws cash.The National Assembly’s Finance Committee adopted amendment I-CF1826 on Oct. 7, adding that proposed exception to a broader overhaul of how private crypto gains are calculated. The provision would apply to disposals and exchanges from Jan. 1, 2027 if enacted.For an investor selling Bitcoin exposure into USDC, the consequence would be a change in the tax timing of a risk-reduction trade. A gain could become reportable while the proceeds remain in a crypto wallet or exchange account. But the proposal also...

Solana’s plan to retire durable nonces, which let transactions be signed offline and broadcast later, would preserve cold-key approval while changing which addresses control the affected assets. For exchanges, custodians and treasury operators using that signing method, the proposed replacement adds a program between the cold key’s approval and execution.The Solana Foundation’s October deprecation plan points to onchain signer programs that verify an offline signature and execute its approved instructions. A program-derived address, or PDA, would control the affected accounts. The original key would still authorize actions, while a separate online operator submits them and pays the network fee.The replacement creates a different custody architecture: operators...

France’s proposed crypto tax changes would make a move from Bitcoin or Ether into certain stablecoins a taxable disposal, even if the investor never...

Solana’s plan to retire durable nonces, which let transactions be signed offline and broadcast later, would preserve cold-key approval while changing which addresses control...