BlockBeats News, December 23rd, the Solana Foundation announced the launch of Kora, a fee relay and signing node for the Solana ecosystem, supporting fee-free transactions, custom fee tokens, and more.Prior to this, there was no modern, standardized way to achieve fee delegation and remote signing. Although Solana's account model made these features technically feasible, there has always been a lack of ready-to-use solutions in the market. Thus, Kora was born, with the following features:· Fully delegate transaction fees;· Pay fees using any token (including stablecoins);· Offload signature operations to a secure environment.