A curated public hub of GitHub and GitHub Copilot resources for Constellation Software Inc. (CSI) portfolio companies — maintained by the GitHub @ CSI team at Microsoft.
| 🚚 Migrate | 🤖 Adopt | 📈 Scale |
|---|---|---|
| Move to GitHub from Bitbucket / Azure DevOps / GitLab / SVN → GitHub Migrations | Onboard GitHub Copilot in your team → Learning & Skilling | Run GitHub & Copilot across your portco at scale → Governance & Architecture |
💡 CSI portcos: 35% off GitHub Enterprise Cloud and Copilot when billed via your portfolio's (or CSI's) Azure subscription — not a credit card. → How to claim the discount
CSI Dev Days is the GitHub @ CSI team's bi-weekly developer event series for engineers across the Constellation Software portfolio. Sessions cover GitHub fundamentals, migrations, Copilot enablement, agentic workflows, multi-part workshops, office hours, and Q&A with Microsoft and GitHub product teams.
- Sign up & upcoming sessions → aka.ms/CSIDevDaysSignUp
CSI portcos move to GitHub from Bitbucket Server / Cloud, Azure DevOps Repos, GitLab, and Subversion.
📧 Planning a migration? Email githubConstellationSoftwareInc@microsoft.com first. We'll match you with the right tooling, runbook, and (if needed) migration partner — instead of you piecing it together from docs alone.
For self-serve reading:
- GitHub Enterprise migration overview — docs.github.com/migrations
- Migration paths to GitHub Enterprise Cloud — docs.github.com
- Awesome Copilot — Learning Hub — Structured learning paths for every level. awesome-copilot.github.com/learning-hub
- Awesome Copilot (site) — Community-curated index of prompts, instructions, chat modes, and extensions. awesome-copilot.github.com
- Awesome Copilot (repo) — Source repo for the above. github.com/github/awesome-copilot
- GitHub Copilot Tutorials — Official short-form tutorials by scenario and language. docs.github.com/en/copilot/tutorials
- GitHub Copilot Labs (Microsoft Learn) — Step-by-step lab environment. microsoftlearning.github.io/mslearn-github-copilot-dev
- GitHub Documentation — Full GitHub product documentation, including Copilot. docs.github.com
- GitHub Changelog — Authoritative source for everything that ships across GitHub and Copilot. github.blog/changelog
- GitHub Upskilling Playlists on YouTube — Official GitHub channel with Copilot deep-dives, demos, and conference talks. youtube.com/@GitHub/playlists
CSI portfolio companies qualify for 35% off GitHub Enterprise Cloud and GitHub Copilot (Business and Enterprise) — but only when billing flows through an Azure subscription tied to your portco, your operating group, or CSI.
⚠️ Credit-card billing on GitHub is NOT eligible for the CSI discount. Personal credit cards and PayPal payment methods on a GitHub enterprise account do not qualify. To get the 35% rate, the GitHub enterprise account must be connected to an Azure subscription owned by your portco, your operating group, or CSI.
- GitHub Enterprise Cloud
- GitHub Copilot Business
- GitHub Copilot Enterprise
See Connecting an Azure subscription (docs.github.com) for the step-by-step procedure.
- About enterprise billing — Concepts and supported payment methods. docs.github.com
- Azure subscription payments (concept) — How GitHub enterprise usage shows up on your Azure invoice. docs.github.com
- Billing through Azure subscriptions (reference) — Detailed reference for what's billable through Azure and how. docs.github.com
For portcos that allocate GitHub costs back to teams or products on Azure:
- Azure Cost Management overview — Cost analysis, budgets, alerts, and exports. learn.microsoft.com
- Tag your Azure resources — Use tags on the Azure subscription / resource group to attribute GitHub line items to the right team, product, or cost center. learn.microsoft.com
If you hit issues during the connect-to-Azure flow (admin consent, ownership mismatches, eligibility questions), email githubConstellationSoftwareInc@microsoft.com and the GitHub @ CSI team will help unblock you.
Resources about Copilot's move to usage-based billing.
- Announcement (blog) — GitHub Copilot is moving to usage-based billing. github.blog
- UBB documentation — Concept docs for usage-based billing in organizations and enterprises. docs.github.com
- UBB pricing & models — Reference for Copilot billing models and pricing. docs.github.com
- GitHub Community FAQ — Discussion thread with frequently asked questions. github.com/orgs/community/discussions/192948
- Copilot code review changelog — Code review will start consuming GitHub Actions minutes on June 1, 2026. github.blog/changelog
For portcos running GitHub at scale across many orgs and operating groups:
- GitHub Well-Architected Framework — Reference architecture for GitHub & Copilot. wellarchitected.github.com
- Multiple orgs under one enterprise — Patterns for portco-per-org topologies. docs.github.com
- Enterprise Managed Users (EMU) — Identity-managed access & provisioning. docs.github.com
- Email us — githubConstellationSoftwareInc@microsoft.com
- Open an issue to suggest a resource, report a broken link, or request a topic — see issue templates and CONTRIBUTING.md.
- Through your Microsoft account team — they can route you to the GitHub @ CSI team directly.
Suggestions, broken-link reports, and improvements welcome — see CONTRIBUTING.md. By participating, you agree to the Microsoft Open Source Code of Conduct.