v1.7.1

v1.7.1

Document and ZIP attachments now work through the ChatGPT web backend using the original C# SDK file types. Keep the browser-free ApiOnly default introduced in v1.7.0; this update extends the shared file adapter used by the drop-in SDK, native SDK and proxy.

Files and compatibility

• Support Chat Completions file parts and Responses input_file parts with inline base64/data URIs or an uploaded file ID. Preserve the original client signatures and OpenAI compatibility assembly version 2.14.0.0.
• Upload documents as my_files, ZIP archives as ace_upload and images as multimodal. Use the same category and resolved MIME type for creation, signed storage upload and processing.
• Infer MIME types from common document, spreadsheet, code, image and archive extensions, including uppercase filenames. Explicit MIME types take precedence; JPEGs retain image/jpeg.
• Represent documents as metadata attachments with text, rather than synthetic image pointers or zero image dimensions. Mixed image/document messages keep the existing image pointer format alongside file metadata.

Validation and state

• Validate every content part and file reference within a message before starting uploads. Reject malformed base64, conflicting sources, invalid MIME values, remote file URLs and unsupported rendering-detail overrides explicitly.
• Retain account/application-user ownership checks, bounded uploads, signed-host credential isolation, cached history attachments and append-only continuation. Collected replies and SSE share the same behavior in ordinary, project and temporary chats.
• Keep the existing native Sentinel decoder and fresh-proof handling. The reviewed fork adds no newer solver; its external-host authorization and broken image callers were not adopted.

Verification and downloads

• Add 55 core/drop-in cases and four native integration cases. The build gate requires 1,639 core/drop-in, 26 native, 168 automation and 12 extension checks before packaging.
• Signed-in live tests uploaded and processed a PDF and an uppercase .ZIP archive, then ChatGPT recovered a private synthetic marker from each file through Responses file references. Both test conversations were deleted. The backend rejected direct file deletion with HTTP 404, so no remote file-purge claim is made.
• Synchronize SDK packages, browser extensions, DLL/proxy archives and browser bundles at 1.7.1. No new runtime dependency is required.

See the file examples, reference review and verification record. All commits are linked in the collapsed appendix below.

All 7 commits

Fixes

• aafcf6e fix(files): route document and archive uploads

Features

• ada8426 feat(compat): support original SDK file inputs

Tests

• 1e955ff test(files): cover attachments and ownership
• 7f0d567 test(native): verify original file parts and SSE

Build and CI

• 3b00700 ci(tests): gate document and archive coverage

Documentation and maintenance

• 1d1ab5c docs(files): explain attachments and verification
• 17aab4c chore(release): 1.7.1