According to TechFlow, on August 19, Optimism announced that Retro Funding 5 applications will be open from August 22 to September 5. Application review will be from September 6 to September 20, voting will be from September 21 to October 4, and results will be announced and funding will be distributed on October 10. This round of funding will reward contributors in Ethereum core contributions, OP Stack R&D, and tool development.