Refresh README for FrontierOR-v1 update

README.md

@@ -30,20 +30,23 @@ Designed for evaluating LLMs on the end-to-end task of turning a research
 paper's OR problem into runnable, verifiably-correct optimization code.
 
 
-## Dataset size note
+## **📌 FrontierOR-v1 release notes**
 
-This repository now contains 180 canonical tasks under `tasks/`. The legacy `ostrowski2012` compatibility alias, which duplicated `earl2005`, was removed on 2026-09-06.
-
-## FrontierOR-v1 release notes
-
-FrontierOR-v1 includes an important dataset update that consolidates the canonical task set, Gurobi references, hard-set split metadata, feasibility checkers, and task-instance artifacts. For detailed notes on the fixes and compatibility changes, see [`RELEASE_NOTES.md`](RELEASE_NOTES.md).
+**FrontierOR-v1 was updated on 2026-09-27.** This important dataset update consolidates the canonical 180-task collection, Gurobi references, hard-set split metadata, feasibility checkers, and task-instance artifacts. For detailed fixes and compatibility notes, see [`RELEASE_NOTES.md`](RELEASE_NOTES.md).
 
 ## Layout
 
 | Path | Purpose |
 | --- | --- |
+| `README.md` | Dataset overview and loading instructions |
+| `RELEASE_NOTES.md` | Detailed FrontierOR-v1 update notes |
+| `CASE_IDS.txt` | Canonical task id list |
+| `LICENSE.md` | Dataset license |
+| `metadata/` | Paper metadata, Gurobi reference summaries, and benchmark split metadata |
 | `metadata/paper_meta_info.json` | Metadata for all 180 canonical papers, including optimization direction |
-| `tasks/<paper_id>/` | Self-contained task package for one paper |
+| `metadata/gurobi_references.parquet` / `.csv.gz` | Canonical Gurobi objectives, runtimes, statuses, and related reference fields |
+| `metadata/splits/` | Hard-set ids, ranking inputs, methodology, and reproduction script |
+| `tasks/<task_id>/` | Self-contained task package for one paper |
 
 ## What's in each task folder
 
@@ -56,22 +59,11 @@ FrontierOR-v1 includes an important dataset update that consolidates the canonic
 | `solution_logger.py` | Utility for serializing solutions |
 | `instance_schema.json` | JSON schema for input instances |
 | `solution_schema.json` | JSON schema for solutions |
-| `instance/` | Test instances (JSON) |
-| `gurobi_solution/` | Reference solutions produced by `gurobi_code.py` |
-| `gurobi_solution_log/` | Anytime objective trajectory from the reference Gurobi run |
-| `gurobi_feasi_result/` | Output of `feasibility_check.py` on the reference solutions |
-
-<!-- ## Top-level files
-
-- `paper_meta_info.csv` / `paper_meta_info.json` — metadata for all 180 papers
-  (problem class, formulation type, application field, average instance size, etc.). -->
-
-<!-- ## Source PDFs
-
-The original paper PDFs are **not redistributed** here because copyright belongs
-to the respective publishers (INFORMS, Elsevier, Springer, etc.). Use the
-`paper_id`, `paper_title`, `publication`, and `year` columns in
-`paper_meta_info.csv` to look them up via your institution. -->
+| `instance/` | Six benchmark instances: `tiny_instance.json` and `large_instance_1.json` through `large_instance_5.json` |
+| `gurobi_solution/` | Reference Gurobi solutions for the tiny and five large instances |
+| `gurobi_solution_log/` | Anytime incumbent objective trajectories from the reference Gurobi runs |
+| `gurobi_feasi_result/` | Feasibility-check outputs for the reference Gurobi solutions |
+| `solverless_models/` | Optional task-local assets for checkers that need solver-independent validation models |
 
 ## Loading the metadata
 
@@ -84,12 +76,33 @@ print(meta[0])
 For the per-paper instance / solution data, clone or download the full
 repository — the structure is intentionally a file tree, not a flat HF
 dataset, because each paper is its own reproducible package under
-`tasks/<paper_id>/`.
+`tasks/<task_id>/`.
+
+```bash
+hf download SmartOR/FrontierOR --repo-type dataset --local-dir frontier-or
+```
+
+To update an existing local copy without downloading everything from scratch,
+rerun the same command; unchanged files are reused from the Hugging Face cache
+and only missing or changed files are fetched.
 
 ```bash
 hf download SmartOR/FrontierOR --repo-type dataset --local-dir frontier-or
 ```
 
+If your local copy was created by `git clone`, update it with:
+
+```bash
+cd frontier-or
+git pull
+git lfs pull
+```
+
+When upgrading from an older snapshot, note that files deleted upstream may
+remain in an existing `--local-dir` checkout. Remove stale top-level files
+manually if present, or refresh from a clean directory when exact directory
+parity is required.
+
 <!-- ## License
 
 Released under **CC-BY-4.0**. If you use this benchmark, please cite the