diff --git a/PROGRESS.md b/PROGRESS.md
index 6bbac70..066f664 100644
--- a/PROGRESS.md
+++ b/PROGRESS.md
@@ -34,6 +34,7 @@ This file records actual progress for agents. Read it before starting work, then
 - Sprint 8 is implemented and committed.
 - Sprint 9 is implemented, independently evaluated, and committed.
 - The project `.venv` has been rebuilt with CUDA-enabled PyTorch and MinerU 3.1.0.
+- Latest `samples/FourNodeQuadrilateralShellElementMITC4.pdf` conversion completed with default GPU request and wrote Markdown, metadata JSON, report Markdown, and assets under ignored `outputs/FourNodeQuadrilateralShellElementMITC4/`.
 - Latest `samples/MITC공부.pdf` conversion completed on GPU and wrote Markdown, metadata JSON, report Markdown, and assets under ignored `outputs/MITC공부/`.
 - `docs/MATHJAXCHECKERPLAN.md` now documents the local MathJax render checker plan and implementation status.
 - Local MathJax render checker code now exists with optional local Node.js/`mathjax` setup, default conversion integration, and `doctor` diagnostics.
@@ -242,6 +243,9 @@ This file records actual progress for agents. Read it before starting work, then
 - Verified targeted Sprint 10 tests: `uv run pytest tests/test_pdf_splitter.py tests/test_conversion.py tests/test_cli.py tests/test_report.py` passed 42 tests.
 - Verified full default test suite: `uv run pytest` passed 163 tests with 1 optional skip.
 - Verified `git diff --check` passed with line-ending warnings only.
+- Ran `uv run pdf2md doctor`; status was WARN only for GTX 1070 Ti/Pascal compatibility risk while MinerU 3.1.0, CUDA PyTorch, local models, MathJax, and strict-local checks passed.
+- Converted `samples/FourNodeQuadrilateralShellElementMITC4.pdf` with `MINERU_MODEL_SOURCE=local` and default `--gpu cuda:0`; output was written to `outputs/FourNodeQuadrilateralShellElementMITC4/`.
+- The FourNode sample conversion report status was `success`: 7 pages, 22 assets, 38 inline formulas, 16 display formulas, 0 math render errors, and 0 warnings.
 
 ## In Progress