v13 release readiness

[flanakin]

🛠️ Description

Update version to v13, update changelog and what's new, and fix PowerShell tests

Related to #1840

📋 Checklist

🔬 How did you test this change?

• 🤏 Lint tests
• 🤞 PS -WhatIf / az validate
• 👍 Manually deployed + verified
• 💪 Unit tests
• 🙌 Integration tests

🙋‍♀️ Do any of the following that apply?

• 🚨 This is a breaking change.
• 🤏 The change is less than 20 lines of code.

📑 Did you update docs/changelog.md?

• ✅ Updated changelog (required for dev PRs)
• ➡️ Will add log in a future PR (feature branch PRs only)
• ❎ Log not needed (small/internal change)

📖 Did you update documentation?

• ✅ Public docs in docs (required for dev)
• ✅ Public docs in docs-mslearn (required for dev)
• ✅ Internal dev docs in docs-wiki (required for dev)
• ✅ Internal dev docs in src (required for dev)
• ➡️ Will add docs in a future PR (feature branch PRs only)
• ❎ Docs not needed (small/internal change)

[flanakin]

@microsoft-github-policy-service agree

[flanakin]

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[Copilot]

Pull request overview

Prepares the repo for the January 2026 v13 release by bumping versions across artifacts, updating “what’s new”/changelog content, and fixing PowerShell test reliability issues.

Changes:

• Bumped toolkit version to 13.0.0 and propagated version markers across templates/scaffolding (ftkver.txt) and introduced ftktag.txt (major-only tag).
• Updated FinOps hubs Analytics template to use the git tag value for GitHub release/tag-based open data resolution.
• Improved the open-data build script’s SVG change filtering and updated PowerShell tests/paths for better cross-platform execution.

Reviewed changes

Copilot reviewed 29 out of 30 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/workbooks/.scaffold/ftkver.txt	Updated scaffolded workbook version marker to 13.0.
src/templates/finops-workbooks/ftkver.txt	Updated template version marker to 13.0.
src/templates/finops-hub/modules/fx/ftkver.txt	Updated hubs shared version marker to 13.0.
src/templates/finops-hub/modules/fx/ftktag.txt	Added major-only tag file to support git tag resolution.
src/templates/finops-hub/modules/Microsoft.FinOpsHubs/Analytics/app.bicep	Switched tag-based open data URLs and dataset version defaulting to use ftktag.txt.
src/templates/finops-alerts/modules/ftkver.txt	Updated alerts module version marker to 13.0.
src/scripts/Update-Version.ps1	Extended version propagation to update both ftkver.txt and ftktag.txt files.
src/scripts/Get-Version.ps1	Adjusted version normalization rules (especially around .0 and prerelease suffixes).
src/scripts/Build-OpenData.ps1	Enhanced logic to revert SVG-only/non-visual diffs and regressions to the generic cube.
src/powershell/Tests/Unit/Deploy-FinOpsHub.Tests.ps1	Updated temp path handling to use GetTempPath() for portability.
src/powershell/Tests/Integration/Toolkit.Tests.ps1	Updated release version parsing expectations for single-part tags (e.g., 12).
src/powershell/Tests/Integration/New-Directory.Tests.ps1	Updated temp path usage for portability.
src/powershell/Tests/Integration/Hubs.Tests.ps1	Made hub name derivation more resilient across environments.
src/powershell/Tests/Integration/CostExports.Tests.ps1	Fixed test state tracking by using script scope to persist across helper function calls.
src/powershell/Public/Deploy-FinOpsHub.ps1	Updated temp directory creation to use GetTempPath().
src/powershell/Private/Save-FinOpsHubTemplate.ps1	Updated default destination to use GetTempPath().
src/powershell/Private/Get-VersionNumber.ps1	Updated hardcoded PowerShell version number to 13.0.
src/optimization-engine/ftkver.txt	Updated optimization engine version marker to 13.0.
package.json	Bumped NPM package version to 13.0.0.
package-lock.json	Bumped lockfile package version to 13.0.0.
docs/workbooks.md	Updated “what’s new” content to v13 messaging.
docs/powershell.md	Updated “what’s new” content to v13 messaging.
docs/open-data.md	Updated “what’s new” content for v13 (currently commented out).
docs/hubs.md	Updated v13 “what’s new” messaging.
docs/guide.md	Updated “what’s new” content to v13 messaging.
docs/_includes/ftkver.txt	Updated site include version marker to 13.0.
docs/_includes/ftktag.txt	Added site include major-only tag file (not currently referenced in docs).
docs-mslearn/toolkit/hubs/upgrade.md	Updated MS Learn metadata date for v13 release timeframe.
docs-mslearn/toolkit/hubs/compatibility.md	Updated MS Learn metadata date for v13 release timeframe.
docs-mslearn/toolkit/changelog.md	Updated v13 changelog content (condensed wording/structure).

[flanakin]

@microsoft-github-policy-service agree company="Microsoft"