New2 developments · 1 source · over 7 daysGitHub Copilot Chat Enhances Agent Session ManagementHow it developedJune 10, 2026GitHub ChangelogWhere it startedGitHub Copilot Chat Enhances Agent Session ManagementJune 17, 2026GitHub ChangelogGitHub Copilot Chat Auto Mode Now AvailableGitHub Copilot Chat now features an auto mode that dynamically selects models like Claude Sonnet 4.6 or GPT-5.4 based on complexity to optim