[DevBehindYou]

Large CSV conversions retained every parsed row and a separate list of formatted rows before constructing the complete Markdown. Both normal and archive document engines now use a row-at-a-time CSV formatter for verified MarkItDown 0.1.8/0.1.9, preserving the upstream output and retaining the original converter on unverified versions or a missing helper. The parser-capacity audit records existing limits and the next workbook/native/response-memory boundary; queue concurrency is unchanged.

Three fresh processes per variant, with generated multilingual CSV and identical before/after output hashes: two synchronized 50,000-row conversions used median peak process memory of 297.19 → 221.92 MiB without tracing (about 25% lower), with similar elapsed time. The small fixture's timing regressed; no universal speed, host-capacity or billing claim is made. The full input and output remain materialized.

Validation:

• MarkItDown 0.1.9: 118 normal + 98 archive tests passed locally.
• 0.1.8: 25 output/fallback tests passed; 0.1.7: 3 fallback/integrity checks passed with 22 optimization-only cases intentionally skipped.
• Output comparisons include 100 deterministic ragged/quoted tables, encodings/BOMs, pipes/backslashes/newlines, blank runs, wide rows, error/stream ownership, unknown-version behavior and direct/archive wiring.
• Existing shared-package integrity checks are preserved; the identical N/Z adapters live outside OCR's shared package. No dependency, UI/blog, database or concurrency changes.
• Pre-release generated multipart CSV/ZIP probes passed on all four live document workers, including the final Unicode marker. These probes create no Storage jobs and are distinct from browser/Storage-backed acceptance.

[vercel]

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Project	Deployment	Actions	Updated
llmiser	Ready	Preview	Oct 28, 2026 5:20pm UTC
llmiser-api-n1n	Ready	Preview	Oct 28, 2026 5:20pm UTC
llmiser-api-n2n	Ready	Preview	Oct 28, 2026 5:20pm UTC
llmiser-api-z1z	Ready	Preview	Oct 28, 2026 5:20pm UTC
llmiser-api-z2z	Ready	Preview	Oct 28, 2026 5:20pm UTC