Increase R dependency to >= 3.4.0.

DESCRIPTION

@@ -37,7 +37,7 @@ BugReports: https://github.com/SebKrantz/collapse/issues
 License: GPL (>= 2) | file LICENSE
 Encoding: UTF-8
 LazyData: true
-Depends: R (>= 3.3.0)
+Depends: R (>= 3.4.0)
 Imports: Rcpp (>= 1.0.1)
 LinkingTo: Rcpp
 Suggests: fastverse, data.table, magrittr, kit, xts, zoo, plm, fixest, vars, 

NEWS.md

@@ -2,10 +2,12 @@
 
 * Fixes an installation bug on some Linux systems (conflicting types) (#613). 
 
-* *collapse* now enforces string encoding in `fmatch()` / `join()`, which caused problems if strings being matched had different encodings (#566, #579, and #618). To avoid noticeable performance implications, checks are done heuristically, i.e., the first, middle and last string of a character vector are checked, and if not UTF8, the entire vector is coerced to UTF8 strings *before* the matching process. In general, character vectors in R can contain strings of different encodings, but this is not the case with most regular data. For performance reasons *collapse* assumes that character vectors are uniform in terms of string encoding. 
+* *collapse* now enforces string encoding in `fmatch()` / `join()`, which caused problems if strings being matched had different encodings (#566, #579, and #618). To avoid noticeable performance implications, checks are done heuristically, i.e., the first, middle and last string of a character vector are checked, and if not UTF8, the entire vector is coerced to UTF8 strings *before* the matching process. In general, character vectors in R can contain strings of different encodings, but this is not the case with most regular data. For performance reasons, *collapse* assumes that character vectors are uniform in terms of string encoding. 
 
 * Fixes a bug using qualified names for fast statistical functions inside `across()` (#621, thanks @alinacherkas). 
 
+* *collapse* now depends on R >= 3.4.0 due to the enforcement of `STRICT_R_HEADERS = 1` from R v4.5.0. In particular R API functions were renamed `Calloc -> R_Calloc` and `Free -> R_Free`.
+
 # collapse 2.0.15
 
 * Some changes on the C-side to move the package closer to C API compliance (demanded by R-Core). One notable change is that `gsplit()` no longer supports S4 objects (because `SET_S4_OBJECT` is not part of the API and `asS4()` is too expensive for tight loops). I cannot think of a single example where it would be necessary to split an S4 object, but if you do have applications please file an issue. 

README.md

@@ -10,7 +10,7 @@
  [![Conda Version](https://img.shields.io/conda/vn/conda-forge/r-collapse.svg)](https://anaconda.org/conda-forge/r-collapse)
  [![Conda Downloads](https://img.shields.io/conda/dn/conda-forge/r-collapse.svg)](https://anaconda.org/conda-forge/r-collapse)
 [![Codecov test coverage](https://codecov.io/gh/SebKrantz/collapse/branch/master/graph/badge.svg)](https://app.codecov.io/gh/SebKrantz/collapse?branch=master)
-[![minimal R version](https://img.shields.io/badge/R%3E%3D-3.3.0-6666ff.svg)](https://cran.r-project.org/)
+[![minimal R version](https://img.shields.io/badge/R%3E%3D-3.4.0-6666ff.svg)](https://cran.r-project.org/)
 [![dependencies](https://tinyverse.netlify.app/badge/collapse)](https://CRAN.R-project.org/package=collapse)
 [![DOI](https://zenodo.org/badge/172910283.svg)](https://zenodo.org/badge/latestdoi/172910283)
 [![arXiv](https://img.shields.io/badge/arXiv-2403.05038-0969DA.svg)](https://arxiv.org/abs/2403.05038)