Changes in version 0.6.4.1 (2026-10-06)                 

  - Fix undefined behavior reported by CRAN's gcc-UBSAN checks: the
    dense backend's KKT constructor move-assigned a freshly constructed
    Eigen::LLT, whose m_info member released Eigen (3.4.x and 5.0.x)
    leaves uninitialized. The Cholesky object is now initialized by
    factorizing a full-size zero matrix, which also keeps all memory
    allocation in setup. This is the fix merged upstream in PIQP
    (PREDICT-EPFL/piqp#45), applied to the vendored v0.6.4 sources
    through the package's patch file.
  - R CMD build with R-devel no longer leaves the src/.r_patched marker
    in the tarball: a clean rule in src/Makevars now removes it.
  - New on-demand GitHub Actions workflow sanitizers.yaml that checks
    the package in the r-hub gcc16, gcc-asan, and clang-ubsan
    containers.

                 Changes in version 0.6.4 (2026-10-03)                  

  - Update to v0.6.4 of the underlying PIQP library
  - Compatibility with Eigen 5 (replaces removed EIGEN_NOEXCEPT macro),
    required for upcoming RcppEigen release (#6)

                 Changes in version 0.6.2 (2026-02-18)                  

  - Update to v0.6.2 of the underlying PIQP library
  - Migrate from R6 to S7 OOP system
  - Inequality constraints are now double-sided: h_l <= Gx <= h_u
  - Variable bounds renamed: x_lb/x_ub to x_l/x_u
  - Result fields renamed: z to z_l/z_u, z_lb/z_ub to z_bl/z_bu, s to
    s_l/s_u, s_lb/s_ub to s_bl/s_bu
  - Info fields renamed: primal_inf to primal_res, dual_inf to dual_res
  - New settings: infeasibility_threshold,
    preconditioner_reuse_on_update
  - Use generic functions solve(), update(), get_settings(), get_dims(),
    and update_settings() instead of R6 methods
  - Support for problem data updates and warm starts via update()

                        Changes in version 0.3.1                        

  - Update to v0.3.1 of the underlying PIQP library

                 Changes in version 0.2.2 (2023-08-14)                  

  - First CRAN release