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Xcode 27.2 Now Supports a New JSON Project File Format

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 23/09/2026, 22:52:24 UTC.

Briefings

Apple released Xcode 27.2 to support a new JSON-based project format (.xcproj), replacing the opaque NeXT-style ASCII .pbxproj. This change aims to improve readability and merge-friendliness, particularly for coding agents. The new format uses standard JSON syntax, whereas the old format relied on opaque ID values that required binary-like handling despite being text-based. Developer reactions are overwhelmingly positive, with many citing this as a long-awaited improvement for human usability and AI integration.

Key points

• Xcode 27.2 now supports the .xcproj format, which is a JSON-based project file replacing the opaque NeXT-style .pbxproj format.
• The new .xcproj format uses standard JSON syntax, whereas the previous .pbxproj format relied on opaque ID values that required binary-like handling despite being text-based.

Context and limitations

Evidence is limited to a single article from September 2026; specific file sizes, exact version numbers of the Swift library, and quantitative adoption metrics are not provided.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 24/09/2026, 07:19:08 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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