Solana will enable v1 transaction-related functions on the mainnet Epoch on September 15th at 01:20 UTC. The maximum size of a single transaction will be increased from 1232 bytes to 4096 bytes, which is approximately 3.3 times the original size. The official upgrade page indicates that the activation is expected to occur at this time, and the mainnet status will be marked as activated. The new format provides more space for zero-knowledge proofs, large multi-signatures, batch processing, and some on-chain signature schemes, reducing the need for developers to split a single operation into multiple transactions. The existing legacy and v0 transactions will continue to function, so this is not a hard fork that requires all wallets and applications to switch immediately.

The new public chain Final announced on September 15th that its first major version, Shannon, is already running on the development network. The project positions itself as an “adaptive blockchain network” and showcases a structure composed of a main chain and a transaction chain, with plans to provide core facilities such as derivatives, spot trading, and stablecoins at the protocol layer. What needs to be clarified at this point is that what has been launched is Devnet, not the mature mainnet intended for everyone. The official website states that Shannon will be open to the public “in the near future,” and the current page still provides an application access link; functions such as wallets, bridges, and documentation are also marked as upcoming.

On September 15, Statistics Canada announced that in July 2026, wholesale sales increased by 0.3% month-on-month at current prices, reaching C$91.4 billion. This figure does not include oil, petroleum products, and other hydrocarbons, nor does it include oilseeds and grains. On the surface, there was little change in sales amounts, with growth even observed in the building materials and food sectors; however, when calculated at constant prices, total sales volume decreased by 0.6%. The increase in nominal amounts while the actual quantity decreased indicates that price factors supported the data for that month, and it also serves as a reminder to the market that one positive growth figure alone should not be used to conclude that demand has strengthened.

The Office for National Statistics in the UK released the latest labor market data on September 15. From June to August 2026, there were an estimated 702,000 job vacancies, which is a decrease of 8,000 from March to May, representing a 1.1% decline. Excluding the pandemic period, the last time there were 702,000 or fewer job vacancies was from August to October 2014, when there were 701,000 vacancies. Meanwhile, the unemployment rate from May to July was estimated at 4.9%, and the employment rate was 75.1%; average regular wages increased by 3.5% year-on-year, while total wages including bonuses grew by 3.9%. These figures indicate a market where recruitment demand remains low and wage growth is slowing down.

After the U.S. Senate failed to advance the CLARITY bill, the crypto market declined, with Bitcoin briefly falling below $75,000.