This article is a technical explanation and implementation example generated using AI. Although the provided code and procedures are structured based on primary information, the author has not verified their operation on actual hardware. Operation may vary depending on the environment and version. Based on official changelog information, this article safely organizes the update details of GitHub Copilot in Slack and Microsoft Teams, their components, and the prerequisites for their use. The objective is to accurately grasp the maintenance of context and the specifications of new control functions in the integration between chat tools and GitHub.
Prerequisites and Considerations
When using and configuring this feature, the following points must be kept in mind.
Target Plans: According to primary information, the public preview of this feature is provided for organizations using the "GitHub Copilot Business" or "GitHub Copilot Enterprise" plans.
Usage and Budget: Usage counts are counted toward existing Copilot entitlements and can be managed via existing Copilot cloud agent budgets.
Gradual Rollout: The primary information states that some features are rolling out gradually and may not be immediately available in all workspaces.
Handling of Actual Hardware Environments: The operations and configuration screen behaviors mentioned in this article are primarily based on research from official release notes and are at the [pre-verification] stage. Verification for each individual environment is recommended regarding detailed screen displays and API output differences on Windows environments or actual chat tools.
Enhancement of Context in Integration Features
To enable a smooth transition from chats on Slack or Microsoft Teams to GitHub tasks, features have been improved to utilize more of the context contained in conversations.
Context in Slack: Supported Slack files, attachments, and message links can now be used as context.
Context in Microsoft Teams: Copilot operates by utilizing inline images, forwarded message context, and channel or thread history.
Prevention of Duplicate Work and Traceability: Before creating a new issue, an automatic check is performed to see if a similar issue already exists. Direct links to the created tasks are added, and links to the original conversations are also retained, making it easy to trace the context behind decisions.
flowchart TD
A[チャットでの会話・ファイル共有] -->|コンテキストの活用| B[GitHub Copilot]
B -->|類似Issueのチェック| C{既存のIssueあり?}
C -- Yes --> D[既存Issueを参照]
C -- No --> E[新規Issue / 作業の作成]
E --> F[元会話へのリンク & 作業への直接リンクを保持]
Operational Controllability and Model Switching
This includes features for finer control over operations and improvements to repository management.
Model Switching: You can switch the model used for the next message during a conversation, and that selection can be maintained throughout the entire conversation.
Default Owner and Repository Settings (Slack): In the Slack environment, default owners and repositories can now be configured, making it easier to facilitate shared conversations and work across multiple repositories.
Repository Switching Safety: Safety during session switching has been enhanced, improving the mechanism to prevent unexpected session continuation against older repositories.
Overview of Reliability and Bug Fixes
Multiple fixes and reliability enhancements have been made regarding long-running task processing and connection stability.
Long-running Tasks and Status Display: The status display for implementation plans is now clearer, and predictability has been improved for handling interrupted or stale responses, as well as reconnecting when conversations go idle.
Improvements Specific to the Teams Environment: Reliable retention of channel thread history, avoidance of duplicate responses, proper handling of images converted in Teams, and consistent behavior in user-owned repositories and large channels have been verified.
Improvements Specific to the Slack Environment: Improvements to implementation plan recovery functionality and bug fixes related to repository pickers and code channels have been implemented.
Error Message Accuracy: More accurate messages are now provided when task stalling, connection drops, or access settings prevent work from continuing.
Overview of Deployment Procedures for Each Platform
The primary sources guide users through the following steps to get started in each workspace.
To get started on Slack
Ensure that the administrator has enabled the Copilot cloud agent policy for the organization.
Install or upgrade the GitHub application for Slack.
Link your GitHub account and mention
@GitHubwithin the conversation.
To get started on Microsoft Teams
Ensure that the administrator has enabled the GitHub Copilot cloud agent and cloud sandboxes.
Install or upgrade the GitHub application for Microsoft Teams.
Mention
@GitHubwithin Teams and follow the prompts to connect your GitHub account.
Important considerations and limitations during use
The content of this article is a structured summary of key points based on the official changelog dated September 25, 2026.
Some features, user interfaces, and command behaviors may vary depending on organizational settings, plans, and rollout status.
Always review the official documentation and administrator policy settings before applying changes to a production environment.
Summary
Prerequisite verification: Requires a GitHub Copilot Business or Enterprise subscription and administrator-enabled policies.
Context utilization: By utilizing Slack files and Teams images or thread history, traceability between the original conversation and GitHub tasks is maintained.
Enhanced control: Flexible operation is enabled by model switching and default repository configuration in Slack.
Handling of Verification: The behavior and screen displays of the feature set covered in this article are [before actual device verification] and are positioned as preliminary research based on official documentation.
