Changes in version 0.1.5 (2026-06-18)                  

  - Added a CITATION file: citation("ustats") now returns both the
    package reference and the paper describing the implemented methods
    (Chen, Zhang, and Liu, 2025, doi:10.48550/arXiv.2508.12627).
  - Added a package-level help page, accessible via ?ustats or
    package?ustats, summarising the package and linking to its
    documentation site.

  - The DESCRIPTION now cites the paper describing the implemented
    methods: Chen, Zhang, and Liu (2025) doi:10.48550/arXiv.2508.12627.
  - setup_ustats(persist = TRUE) no longer offers to write to the
    project .Rprofile. It now only prints the RETICULATE_PYTHON line for
    the user to add manually, so the package never writes to the user's
    file space (CRAN policy).

                        Changes in version 0.1.4                        

Python environment handling

  - Python dependencies (u-stats, numpy, torch) are now declared with
    reticulate::py_require() in .onLoad(). With reticulate (>= 1.41)
    they are provisioned automatically in a cached environment on first
    use, so most users need no manual setup at all. reticulate (>= 1.41)
    is now required.
  - setup_ustats() gains a gpu argument. By default (gpu = FALSE) the
    much smaller CPU-only PyTorch build is installed from the official
    PyTorch wheel index; gpu = TRUE installs the default PyPI build
    (CUDA-enabled on Linux).
  - check_ustats_setup() now reports the detected PyTorch version and
    whether CUDA is available, and prints actionable installation hints
    when something is missing.
  - Added a "Getting started" vignette with a complete installation
    guide (automatic setup, setup_ustats(), and
    bring-your-own-environment) and troubleshooting tips; the README
    installation section was rewritten accordingly.

Bug fixes

  - setup_ustats() now invisibly returns TRUE/FALSE as documented (it
    previously returned NULL because the persistence step was
    unreachable dead code placed after the return value).
  - Fixed a duplicated "Description:" prefix in the DESCRIPTION file.

Internal

  - Python-dependent tests are now additionally guarded with
    skip_on_cran(), so the test suite never initializes Python (or
    triggers automatic dependency downloads) on CRAN machines.
  - expr_list_to_einstein() is internal and no longer generates a help
    page.

                        Changes in version 0.1.3                        

  - Fixed NEWS.md filename casing (News.md -> NEWS.md).

                        Changes in version 0.1.2                        

  - Quoted software names ('NumPy', 'PyTorch', 'CUDA') in DESCRIPTION
    per CRAN policy.

                        Changes in version 0.1.1                        

  - Minor improvements and CRAN compliance fixes.

  - Fixed issues identified during CRAN pre-checks, including:
    
      - Proper handling of external dependencies
      - Removal of non-ASCII characters
      - Namespace and import adjustments
      - Compliance with CRAN policies on user system modifications

                        Changes in version 0.1.0                        

  - Initial CRAN release.