ISS has announced its 2019 updates to its proxy voting policies, which are generally applicable to shareholder meetings to be held on or after February 1, 2019.
Most notably, starting in 2020, for Russell 3000 and S&P 1500 companies, ISS will generally recommend (subject to mitigating factors) a vote against or withhold from the chair of the nominating committee at companies where there are no women on the board of directors.
Also of note, ISS will now recommend a vote against or withhold from the chair of the nominating committee at companies with three years of poor director attendance (generally any directors attending less than 75% of meetings without certain excused reasons).
The full updates can be found here.