ISS's Governance QualityScore Data Verification window is open from November 5 - 16, 2018 for the annual methodology update. See Davis Polk Ning Chiu's post, which includes the ISS Release Highlights.
As was noted in this week's Society Alert, ISS's window for companies to review and submit changes to their self-selected peer group for their 2019 proxies, for annual meetings to be held between February 1 and September 15, 2019, will be open from Monday, November 19th through Friday, December 7th.
Access additional information & resources on our Proxy Advisors page.