GitHub Copilot weekly releases \u2014 September 21 - GitHub Changelog<\/title>\n<meta name=\"description\" content=\"This week's releases add models to Copilot, local sandboxing in the Copilot app, and updates to Copilot in Slack, Microsoft Teams, JetBrains, and VS Code.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/github.blog\/changelog\/2026-09-25-github-copilot-weekly-releases-september-21\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GitHub Copilot weekly releases \u2014 September 21 \u00b7 GitHub Changelog\" \/>\n<meta property=\"og:description\" content=\"This week's releases add models to Copilot, local sandboxing in the Copilot app, and updates to Copilot in Slack, Microsoft Teams, JetBrains, and VS Code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/github.blog\/changelog\/2026-09-25-github-copilot-weekly-releases-september-21\/\" \/>\n<meta property=\"og:site_name\" content=\"The GitHub Blog\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-25T17:09:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/github.blog\/wp-content\/uploads\/2026\/09\/657455677-8fdea94a-346d-4c56-a43c-a963a44d569d.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2064\" \/>\n\t<meta property=\"og:image:height\" content=\"848\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data2\" content=\"Allison\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/\",\"url\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/\",\"name\":\"GitHub Copilot weekly releases \u2014 September 21 - The GitHub Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/github.blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/github.blog\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/649772462-cd2b8dcf-4eac-422d-81a2-5e9ef2709240_5bfdb7.jpg?fit=2064%2C848\",\"datePublished\":\"2026-09-25T16:42:48+00:00\",\"dateModified\":\"2026-09-25T17:09:02+00:00\",\"description\":\"This week's releases add models to Copilot, local sandboxing in the Copilot app, and updates to Copilot in Slack, Microsoft Teams, JetBrains, and VS Code.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/#primaryimage\",\"url\":\"https:\\\/\\\/github.blog\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/649772462-cd2b8dcf-4eac-422d-81a2-5e9ef2709240_5bfdb7.jpg?fit=2064%2C848\",\"contentUrl\":\"https:\\\/\\\/github.blog\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/649772462-cd2b8dcf-4eac-422d-81a2-5e9ef2709240_5bfdb7.jpg?fit=2064%2C848\",\"width\":2064,\"height\":848,\"caption\":\"Small text on the left side that says "GITHUB COPILOT" with larger text underneath it that says "Weekly releases". 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{"id":99075,"date":"2026-09-25T09:42:48","date_gmt":"2026-09-25T16:42:48","guid":{"rendered":"https:\/\/github.blog\/changelog\/2026-09-25-github-copilot-weekly-releases-september-21"},"modified":"2026-09-25T10:09:02","modified_gmt":"2026-09-25T17:09:02","slug":"github-copilot-weekly-releases-september-21","status":"publish","type":[3521],"link":"https:\/\/github.blog\/changelog\/2026-09-25-github-copilot-weekly-releases-september-21","title":{"rendered":"GitHub Copilot weekly releases \u2014 September 21"},"content":{"rendered":"\n

This week’s releases add new models to Copilot, local sandboxing in the Copilot app, and updates to Copilot in Slack, Microsoft Teams, JetBrains, and VS Code.<\/p>\n

GitHub Copilot<\/span><\/a><\/h3>\n
\n
Claude Opus 5.5 is available to Copilot Pro+, Max, Business, and Enterprise plans.<\/li>\n
GPT-6 Sol is available to Copilot Pro+, Max, Business, and Enterprise plans.<\/li>\n
GPT-6 Luna is available to Copilot Pro, Pro+, Max, Business, and Enterprise plans.<\/li>\n
Grok 4.7 is available to Copilot Pro, Pro+, Max, Business, and Enterprise plans.<\/li>\n<\/ul>\n
GitHub Copilot app<\/span><\/a><\/h3>\n
\n
Limit agents’ access to files, networks, and credentials with local sandboxing, now in public preview.<\/li>\n
Track agent activity in your existing monitoring tools with OpenTelemetry, configured through enterprise-managed settings.<\/li>\n<\/ul>\n
Download the Copilot app<\/a>.<\/p>\n
GitHub Copilot in Slack and Microsoft Teams<\/span><\/a><\/h3>\n
\n
Choose the best model for each task. Switch models mid-conversation, and Copilot keeps your choice for the rest of the thread. In Slack, you can also set channel defaults.<\/li>\n
Avoid duplicate issues since Copilot now checks for similar existing issues before creating a new one.<\/li>\n
Follow longer-running tasks more easily with clearer implementation-plan status, better recovery from interrupted or stale replies, and more predictable reconnection when a conversation goes idle.<\/li>\n
Give Copilot more context in Slack by sharing supported files, attachments, and message links.<\/li>\n<\/ul>\n
Learn more about GitHub Copilot public previews in Slack<\/a> and Teams<\/a>.<\/p>\n
GitHub Copilot in JetBrains<\/span><\/a><\/h3>\n
\n
Assisted approvals, now in public preview for Copilot agent sessions, automatically approve low-risk tool calls while prompting you for higher-risk actions.<\/li>\n
Edit an earlier message to redirect an agent session and Copilot rewinds both the conversation and file changes before sending the replacement request.<\/li>\n
Shared organization and enterprise skills, along with organization-managed custom instructions, now work in local and Copilot agent sessions.<\/li>\n<\/ul>\n
Learn more in the full Copilot in JetBrains changelog<\/a>.<\/p>\n
GitHub Copilot in VS Code 1.139 release<\/span><\/a><\/h3>\n
\n
Run agents in Dev Containers on SSH, Tunnel, and WSL hosts, using your remote project’s tools and dependencies. Support is rolling out gradually.<\/li>\n
Keep busy session lists organized with Compact View, filters to hide empty groups, and the ability to rename sessions and chats directly in the list.<\/li>\n
Choose between separate chat tabs or a single active-chat view within a session, without losing your conversations. This layout option is now in preview.<\/li>\n<\/ul>\n
Explore everything that’s new in the full release notes<\/a>.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"
This week’s releases add new models to Copilot, local sandboxing in the Copilot app, and updates to Copilot in Slack, Microsoft Teams, JetBrains, and VS Code. GitHub Copilot Claude Opus…<\/p>\n","protected":false},"author":2106,"featured_media":99076,"template":"","meta":{"_gh_post_show_toc":"","_gh_post_is_no_robots":"","_gh_post_is_featured":"","_gh_post_is_excluded":"","_gh_post_is_unlisted":"","_gh_post_related_link_1":"","_gh_post_related_link_2":"","_gh_post_related_link_3":"","_gh_post_sq_img":"","_gh_post_sq_img_id":"","_gh_post_cta_title":"","_gh_post_cta_text":"","_gh_post_cta_link":"","_gh_post_cta_button":"","_gh_post_recirc_hide":"","_gh_post_recirc_col_1":"","_gh_post_recirc_col_2":"","_gh_post_recirc_col_3":"","_gh_post_recirc_col_4":"","_featured_video":"","_gh_post_additional_query_params":"","footnotes":"","_links_to":"","_links_to_target":"","primary_cta":"","primary_cta_url":"","secondary_cta":"","secondary_cta_url":""},"label":[2765],"group":[3918],"coauthors":[3100],"class_list":["post-99075","changelog","type-changelog","status-publish","has-post-thumbnail","hentry","changelog-type-new-releases","changelog-label-copilot","changelog-group-09-2026"],"yoast_head":"\nGitHub Copilot weekly releases \u2014 September 21 - GitHub Changelog<\/title>\n<meta name=\"description\" content=\"This week's releases add models to Copilot, local sandboxing in the Copilot app, and updates to Copilot in Slack, Microsoft Teams, JetBrains, and VS Code.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/github.blog\/changelog\/2026-09-25-github-copilot-weekly-releases-september-21\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GitHub Copilot weekly releases \u2014 September 21 \u00b7 GitHub Changelog\" \/>\n<meta property=\"og:description\" content=\"This week's releases add models to Copilot, local sandboxing in the Copilot app, and updates to Copilot in Slack, Microsoft Teams, JetBrains, and VS Code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/github.blog\/changelog\/2026-09-25-github-copilot-weekly-releases-september-21\/\" \/>\n<meta property=\"og:site_name\" content=\"The GitHub Blog\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-25T17:09:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/github.blog\/wp-content\/uploads\/2026\/09\/657455677-8fdea94a-346d-4c56-a43c-a963a44d569d.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2064\" \/>\n\t<meta property=\"og:image:height\" content=\"848\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data2\" content=\"Allison\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/\",\"url\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-09-25-github-copilot-weekly-releases-september-21\\\/\",\"name\":\"GitHub Copilot weekly releases \u2014 September 21 - 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GitHub Copilot app<\/span><\/a><\/h3>\n\nLimit agents’ access to files, networks, and credentials with local sandboxing, now in public preview.<\/li>\n