Feedback on v12: Architectural Regressions

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I wanted to share some feedback and raise some serious concerns regarding the new v12 Git Sync architecture, specifically the move from a unified JSON collection (v2.1.0) to a deeply nested, multi-file YAML format.

While I don’t inherently mind YAML (though I’d argue it’s less accessible due to the over-opinionated decision of demanding spaces vs tabs), the architectural decision to fracture collections into thousands of individual files seems like a massive step backward for a tool of Postman’s caliber. It feels like Postman is trying to mimic local-first tools like Bruno, but without thinking through the file-system and implications that Postman originally solved.

Here are the major regressions this new architecture has introduced:

  • File System & Sync Degradation: Syncing hundreds of workspaces, each with hundreds of requests, now means syncing thousands of tiny files. This creates massive overhead if backing up via cloud storage providers and degrades file-system read speeds (inode challenges, I/O bottlenecks).
  • Path Limits & Invalid Characters: I document my collections after API URL structures (e.g., using path variables like {team_name}). Because v12 now uses deeply nested folders, this instantly breaks sync with some cloud storage providerrs which forbid those characters. Furthermore, deeply nested requests are going to hit NTFS path length limits very quickly.
  • QA & Cross-Platform Testing Issues: The initial release felt like an alpha. For example, for about two weeks, Windows users couldn’t sync collections with an Example request because the code forced forward-slashes while Node’s path module used backslashes. It resulted in a completely uninformative error and suggests a lack of internal testing.
  • Undocumented Schema & Missing Features: The v2.1.0 JSON format was well-documented (even if it relied on an older draft-07 schema). The new v3 YAML format has no public schema I can find. There is no autocompletion available. Furthermore, setting parameter types, enums, default values, and JSON POST body schemas don’t seem to sync properly anymore, and the UI options for them disappear.

If the goal was better Git diffing, fracturing the database into millions of files wasn’t the only answer. A better engineering approach would have been utilizing a local-first SQLite database and/or a Git-for-data tool like Dolt, and predictably sorting keys to ensure clean diffs without destroying file system performance.

Honestly, the execution of this release feels like the result of relying heavily on AI to write and guide development without experienced, senior engineers reviewing the architectural impact. AI will often suggest a multi-file YAML structure simply because it mimics other popular tools (like Bruno) or common online boilerplate. However, an experienced engineer would have likely flagged the resulting inode exhaustion, NTFS limits, character conflicts, and other issues.

The fact that an elementary forward-slash/backslash bug on Windows made it to production—and sat there for two weeks with uninformative errors—points to a severe lack of human QA and experienced oversight. For a company valued at over $3 billion, shipping an alpha-quality feature that forces breaking OS-level constraints is unacceptable. It feels like the thoughtful, deliberate engineering that made Postman great prior to v12 has been replaced by AI-generated shortcuts.

Are there any plans to document the new v3 YAML schema, fix the strict pathing limits, or offer a consolidated file sync option?

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Hi there,

Thank you for sharing such a detailed and thoughtful analysis of the v12 Git Sync changes. Your points are very valid, and I can see how this release has caused significant friction for heavy Postman users with large workspaces.

A few responses to the concerns you raised:

1. File System & Sync Degradation
You’re absolutely right—splitting collections into thousands of tiny YAML files introduces real I/O overhead. On systems with many collections, this can lead to slow sync, backup issues, and general file-system performance degradation. While the intention of better diffing is understandable, the trade-offs in real-world scenarios, especially with nested workspaces, are substantial.

2. Path Limits & Invalid Characters
This is a critical point. Deeply nested folder structures combined with characters like {team_name} in paths will inevitably hit NTFS path length limits or cloud storage restrictions. Many users, particularly on Windows, are likely to run into sync errors as a result. A consolidated approach or at least configurable export paths could mitigate this.

3. QA & Cross-Platform Testing
The forward-slash/backslash issue on Windows highlights a broader problem: inconsistent cross-platform handling in the initial release. Shipping without fully validating OS-level constraints was a major oversight, and your observation about the lack of informative error messaging is spot-on.

4. Undocumented Schema & Missing Features
The absence of a public v3 YAML schema is a huge regression for users relying on programmatic automation. Features like parameter types, enums, default values, and JSON body schemas are fundamental to complex collections, and their loss impacts workflow reliability. Documentation and autocompletion support would help bridge the gap while the team works on stabilizing the format.

5. Engineering Approach & Alternatives
You make an excellent point that a local-first database or a structured Git-for-data tool could provide the same benefits (clean diffs, version control) without fracturing collections across the file system. Multi-file YAML seems like a shortcut that introduces a range of operational problems.

Next Steps / What Users Can Do

  • Monitor Postman’s Git Sync release notes and beta channels for fixes on path handling and schema documentation.

  • Consider using consolidated exports or versioned JSON backups in parallel until v12 stabilizes.

  • Submit feedback directly to Postman’s support team referencing your workflow pain points—they do track high-impact user concerns for upcoming patches.

Your critique is thorough and clearly comes from a real-world usage perspective. Hopefully, the Postman team takes this feedback seriously and implements improvements for schema documentation, path flexibility, and more robust cross-platform QA.

It might also help to ask in the Postman community or GitHub discussions if there’s a roadmap for optional consolidated syncing or a toggle to revert to a single-file JSON export temporarily.