ECOSolveR 0.6.1

• Fix UBSan error (misaligned pointer from REAL() on zero-length vector) in build_result() when no equality constraints are present (p = 0). Reported by CRAN M1 SAN checks.

• Add multi-step solver lifecycle API: ECOS_setup(), ECOS_solve(), ECOS_update(), and ECOS_cleanup() allow re-solving problems with changed numerical data (same sparsity structure) without repeating symbolic analysis. Workspace held in an external pointer with GC finalizer; user data vectors are duplicated to prevent corruption from ECOS in-place equilibration.

• Switch R-level error messaging from stop() to cli::cli_abort() with inline markup ({.arg}, {.cls}, {.code}, {.field}). The cli package is now in Imports.

• Add lifecycle tests (10 tests covering setup, solve, update, cleanup, and helper functions).

ECOSolveR 0.5-7

• Switch ECOS submodule to fork (bnaras/ecos, r-patches branch); remove ecos-2954b2a-changes/ overlay and simplify Makevars.

• Fix copy-paste bug in A matrix validation (inherits(G,...) was used instead of inherits(A,...)).

• Enable dimension consistency check (sum(q) + l + 3*e == nrow(G)).

• Signal an R error instead of returning silent NULL when ECOS_setup or ECOS_BB_setup fails.

• Fix R_init function name to match package name (R_init_ECOSolveR).

• Narrow import(methods) to importFrom(methods, as).

• C solver fixes: wright omega Taylor series bug, NULL dereference and memory leaks in ECOS_BB, integer truncation in pfloat rounding, missing include guards, printf replaced with Rprintf.

• Cherry-pick upstream NaN bail-out (PR #181) and ECOS_updateData NULL-safety fix (PR #185) from ECOS develop branch.

• Add unit tests for ecos.control, make_csc_matrix, dimension validation, and plain-matrix A handling. Fix test-bb.R to namespace-qualify Matrix::sparseMatrix.

ECOSolveR 0.5-6

• Clean up matrix coercions

ECOSolveR 0.5-5

• Fix CRAN issues re: prototypes.

ECOSolveR 0.5-4

• Address the issue caused by Matrix 1.3.x: Force coercion to “dgCMatrix” if not so. Make corresponding change in vignette.

ECOSolveR 0.5-3

• Fix some awful cut-and-paste error in R/ecos.R
• Address edge case for ECOS_BB when G is NULL.

ECOSolveR 0.5-2

• Fix compilation issue on Ubuntu by modifying Makevars and Makevars.win to use Rscript call to R.home() to figure out include path. (Issue 5)

ECOSolveR 0.5-1

• ECOS source fix for header glblopts.h that defined ECOS_NAN using portable R version R_NaN and R_PosInf. This caused the convolution example in CVXR package to fail on 32-bit platforms.

• Added a convolution test to be specific.

ECOSolveR 0.5

• ECOS update: Synced underlying library to version 2.0.7.

• Removed import of Matrix package, added slam interface, contributions from Florian Schwendinger.

• Tests: Added a number of unit tests based on base C library.

ECOSolveR 0.4

• ECOS_csolve assumes A and G as NULL if any dimension is 0
• The dims list is now coerced to integer immediately upon entry to ECOS_csolve
• ECOS library sources updated to version 2.0.5.

ECOSolveR 0.3-[1-3]

• Updated Readme
• Allowed empty vector c, per Anqi’s request

ECOSolveR 0.3

• Registered .Call entries
• Changed Anqi’s email

ECOSolveR 0.2

• Added system requirement of GNU makefile
• Improved the description of the package
• Checked more carefully on Linux, MacOS, and Windows

ECOSolveR 0.1-1

• First version, thought I had it right for all platforms, but quite wrong.

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