R1:2fba7e66e720

Versions Panel: Show extensions, dates

Summary: ref T9788

Test Plan: {F1008540}

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Maniphest Tasks: T9788

Differential Revision: https://secure.phabricator.com/D14610