What's new
• Review queue: the toolbar button lists the pull requests waiting for your review, and your own, with about how long each takes to review. The ones you're asked to review again come first, drafts fold away, and you can mark one done until something new happens on it. In settings, pick which repositories it lists.
• Review time: say how long you have, or set times on the days you pick, and get the pull requests that fit. Notifications can wait until then.
• Notifications: hear about review requests, comments, approvals, requested changes and mentions, with quiet hours and a sound of your own.
• The filters stay on one row, with arrows to scroll them.

Fixes
• Filters work on large pull requests, in the view GitHub optimizes for them, and the list closes up around the hidden files.
• A pull request opened in a background tab is filtered without waiting for you to switch to it.