Update KubeCon + CloudNativeCon + OpenInfra Summit China + PyTorch Conference 2026 logos (REV-1)

[Copilot]

Pre-submission checklist:

If you're adding a new project to the repo, please confirm each of these actions has been completed:

• Artwork is supplied in both PNG and SVG formats.
• SVGs are real vector-based files. Test and optimize them at https://autocrop.cncf.io before submitting.
• Artwork includes 3 layouts: horizontal (landscape), stacked, and icon.
• At least 3 versions of the artwork are provided: color, black, and white.
• Files follow the existing repo folder and naming conventions.
• The correct examples/file.md is updated with a section for the logos added, in A-Z order.
• A link to the new logo section is added to the main README.md, in A-Z order.

Note: Updates to this repo require two approvals to be merged in. One from a CNCF staff member, and the other from a project maintainer whose project's artwork is being updated. We can bypass branch protections for PRs made by maintainers.

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Replaces KubeCon + CloudNativeCon + OpenInfra Summit China + PyTorch Conference 2026 logos with REV-1 versions from provided ZIP file. Follow-up to #628.

Changes

Updated 12 files in /other/kubecon-cloudnativecon/2026-china/:

• Horizontal layout: color, black, white (PNG + SVG)
• Stacked layout: color, black, white (PNG + SVG)

File sizes reduced 75-85% while maintaining naming conventions. No documentation changes required—existing references in examples/other.md remain valid.

Original prompt

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This section details on the original issue you should resolve

<issue_title>KubeCon + CloudNativeCon + OpenInfra Summit China + PyTorch Conference 2026 Logo Update</issue_title>
<issue_description>Can we please update the KubeCon + CloudNativeCon + OpenInfra Summit China + PyTorch Conference 2026 logo with the attached files?

Logo-REV-1.zip</issue_description>

<agent_instructions>As a follow up to this previous pull request (#628), can you please replace the images with those included in the ZIP file attached to this issue?</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes KubeCon + CloudNativeCon + OpenInfra Summit China + PyTorch Conference 2026 Logo Update #630

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