\name{NEWS}

\title{News for Package \pkg{Rcpp}}

\newcommand{\ghpr}{\href{https://github.com/RcppCore/Rcpp/pull/#1}{##1}}

\newcommand{\ghit}{\href{https://github.com/RcppCore/Rcpp/issues/#1}{##1}}

\section{Changes in Rcpp release version 1.1.1.7 (2026-04-07)}{

\itemize{

\item UNOFFICIAL AND UNRELEASED

\item Interim release candidate for Rcpp 1.1.2 expected July 2026

\item Changes in Rcpp API:

\itemize{

\item Use of \code{execinfo.h} is again conditional to avoid build

complexity (Dirk in \ghpr{1445} addressing \ghit{1442})

\item An internal state component for \code{Datetime} is now \code{int}

(Dirk in \ghpr{1448} and \ghpr{1449} fixing \ghpr{1447})

\item Three new (in R 4.6.0) attribute accessors are used conditionally

(Dirk in \ghpr{1450} closing \ghit{1432})

\item An UBSAN error in the Sugar-based NA comparison has been

corrected (Iñaki in \ghpr{1453} fixing \ghit{1452})

\item Treatment of Inf outside of integer range in Sugar function has

been corrected (Iñaki in \ghpr{1458} fixing \ghit{1455})

\item Integer overflow protection has been added for sugar functions

(Iñaki in \ghpr{1457} fixing \ghpr{1454})

\item The parent environment is now accessed via \code{R_ParentEnv}

(Dirk in \ghpr{1460} fixing \ghit{1459})

\item Change to returning \code{dataptr} again for better handling of

empty vectors (Iñaki in \ghpr{1462} fixing \ghit{1461})

\item Undefined behavior errors in use of \code{ListOf} proxies have

been addressed (Iñaki in \ghpr{1464} fixing \ghit{1463})

\item Under newer R version, \code{R_UnboundValue} is no longer used

(Iñaki in \ghpr{1466} fixing \ghit{1465})

\item New R API access point \code{R_getRegisteredNamespace()} is used

with current R versions (Dirk in \ghpr{1469} fixing \ghit{1468})

}

\item Changes in Rcpp Documentation:

\itemize{

\item Reference in the bibliography used by the package vignettes have

been updated.

}

\item Changes in Rcpp Deployment:

\itemize{

\item Excute permissions are set consistently on scripts with shebangs

(Mattias Ellert in \ghpr{1467})

}

}

}

\section{Changes in Rcpp release version 1.1.1 (2026-01-08)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item An unused old R function for a compiler version check has been

removed after checking no known package uses it (Dirk in \ghpr{1395})

\item A narrowing warning is avoided via a cast (Dirk in \ghpr{1398})

\item Demangling checks have been simplified (Iñaki in \ghpr{1401}

addressing \ghit{1400})

\item The treatment of signed zeros is now improved in the Sugar code

(Iñaki in \ghpr{1404})

\item Preparations for phasing out use of \code{Rf_error} have been

made (Iñaki in \ghpr{1407})

\item The long-deprecated function \code{loadRcppModules()} has been

removed (Dirk in \ghpr{1416} closing \ghit{1415})

\item Some non-API includes from R were refactored to accommodate

R-devel changes (Iñaki in \ghpr{1418} addressing \ghit{1417})

\item An accessor to \code{Rf_rnbeta} has been removed (Dirk in

\ghpr{1419} also addressing \ghit{1420})

\item Code accessing non-API \code{Rf_findVarInFrame} now uses

\code{R_getVarEx} (Dirk in \ghpr{1423} fixing \ghit{1421})

\item Code conditional on the R version now expects at least R 3.5.0;

older code has been removed (Dirk in \ghpr{1426} fixing \ghit{1425})

\item The non-API \code{ATTRIB} entry point to the R API is no longer

used (Dirk in \ghpr{1430} addressing \ghit{1429})

\item The unwind-protect mechanism is now used unconditionally (Dirk

in \ghpr{1437} closing \ghit{1436})

}

\item Changes in Rcpp Attributes:

\itemize{

\item The OpenMP plugin has been generalized for different macOS

compiler installations (Kevin in \ghpr{1414})

}

\item Changes in Rcpp Documentation:

\itemize{

\item Vignettes are now processed via a new "asis" processor adopted

from \pkg{R.rsp} (Dirk in \ghpr{1394} fixing \ghit{1393})

\item R is now cited via its DOI (Dirk)

\item A (very) stale help page has been removed (Dirk in \ghpr{1428}

fixing \ghit{1427})

\item The main README.md was updated emphasizing r-universe in favor of

the local drat repos (Dirk in \ghpr{1431})

}

\item Changes in Rcpp Deployment:

\itemize{

\item A temporary change in R-devel concerning NA part in complex variables

was accommodated, and then reverted (Dirk in \ghpr{1399} fixing \ghit{1397})

\item The macOS CI runners now use macos-14 (Dirk in \ghpr{1405})

\item A message is shown if \code{R.h} is included before Rcpp headers

as this can lead to errors (Dirk in \ghpr{1411} closing \ghit{1410})

\item Old helper functions use \code{message()} to signal they are not used,

deprecation and removal to follow (Dirk in \ghpr{1413} closing

\ghit{1412})

\item Three tests were being silenced following \ghpr{1413} (Dirk in

\ghpr{1422})

\item The heuristic whether to run all available tests was refined

(Dirk in \ghpr{1434} addressing \ghit{1433})

\item Coverage has been tweaked via additional \code{#nocov} tags (Dirk

in \ghpr{1435})

}

\item Non-release Changes:

\itemize{

\item Two interim non-releases 1.1.0.8.1 and .2 were made in order to

unblock CRAN due to changes in R-devel rather than Rcpp

}

}

}

\section{Changes in Rcpp release version 1.1.0 (2025-07-01)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item C++11 is now the required minimal C++ standard

\item The \code{std::string_view} type is now covered by \code{wrap()}

(Lev Kandel in \ghpr{1356} as discussed in \ghit{1357})

\item A last remaining \code{DATAPTR} use has been converted to

\code{DATAPTR_RO} (Dirk in \ghpr{1359})

\item Under R 4.5.0 or later, \code{R_ClosureEnv} is used instead of

\code{CLOENV} (Dirk in \ghpr{1361} fixing \ghpr{1360})

\item Use of \code{lsInternal} switched to \code{lsInternal3} (Dirk in

#1362)

\item Removed compiler detection macro in a header cleanup setting

C++11 as the minunum (Dirk in \ghpr{1364} closing \ghit{1363})

\item Variadic templates are now used onconditionally given C++11 (Dirk

in \ghpr{1367} closing \ghit{1366})

\item Remove \code{RCPP_USING_CXX11} as a \code{#define} as C++11 is

now a given (Dirk in \ghpr{1369})

\item Additional cleanup for \code{__cplusplus} checks (Iñaki in

\ghpr{1371} fixing \ghit{1370})

\item Unordered set construction no longer needs a macro for the

pre-C++11 case (Iñaki in \ghpr{1372})

\item Lambdas are supported in a Rcpp Sugar functions (Iñaki in \ghpr{1373})

\item The Date(time)Vector classes now have default ctor (Dirk in

\ghpr{1385} closing \ghpr{1384})

\item Fixed an issue where Rcpp::Language would duplicate its arguments

(Kevin in \ghpr{1388}, fixing \ghit{1386})

}

\item Changes in Rcpp Attributes:

\itemize{

\item The C++26 standard now has plugin support (Dirk in \ghpr{1381}

closing \ghit{1380})

}

\item Changes in Rcpp Documentation:

\itemize{

\item Several typos were correct in the NEWS file (Ben Bolker in

\ghpr{1354})

\item The Rcpp Libraries vignette mentions \code{PACKAGE_types.h} to

declare types used in \code{RcppExports.cpp} (Dirk in \ghpr{1355})

\item The vignettes bibliography file was updated to current package

versions, and now uses doi references (Dirk in \ghpr{1389})

}

\item Changes in Rcpp Deployment:

\itemize{

\item \code{Rcpp.package.skeleton()} creates \sQuote{URL} and

\sQuote{BugReports} if given a GitHub username (Dirk in \ghpr{1358})

\item R 4.4.* has been added to the CI matrix (Dirk in \ghpr{1376})

\item Tests involving NA propagation are skipped under linux-arm64 as

they are under macos-arm (Dirk in \ghpr{1379} closing \ghit{1378})

}

}

}

\section{Changes in Rcpp release version 1.0.14 (2025-01-11)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Support for user-defined databases has been removed (Kevin in

\ghpr{1314} fixing \ghit{1313})

\item The \code{SET_TYPEOF} function and macro is no longer used (Kevin

in \ghpr{1315} fixing \ghit{1312})

\item An erroneous cast to \code{int} affecting large return object

has been removed (Dirk in \ghpr{1335} fixing \ghpr{1334})

\item Compilation on DragonFlyBSD is now supported (Gábor Csárdi in

\ghpr{1338})

\item Use read-only \code{VECTOR_PTR} and \code{STRING_PTR} only

with R 4.5.0 or later (Kevin in \ghpr{1342} fixing \ghit{1341})

}

\item Changes in Rcpp Attributes:

\itemize{

\item The \code{sourceCpp()} function can now handle input files with

read-only modes (Simon Guest in \ghpr{1346} fixing \ghit{1345})

}

\item Changes in Rcpp Deployment:

\itemize{

\item One unit tests for arm64 macOS has been adjusted; a macOS

continuous integration runner was added (Dirk in \ghpr{1324})

\item Authors@R is now used in DESCRIPTION as mandated by CRAN, the

\code{Rcpp.package.skeleton()} function also creates it (Dirk in

\ghpr{1325} and \ghpr{1327})

\item A single datetime format test has been adjusted to match a change

in R-devel (Dirk in \ghpr{1348} fixing \ghit{1347})

}

\item Changes in Rcpp Documentation:

\itemize{

\item The Rcpp Modules vignette was extended slightly following

\ghit{1322} (Dirk)

\item Pdf vignettes have been regenerated under Ghostscript 10.03.1 to

avoid a false positive by a Windows virus scanner (Iñaki in

\ghpr{1331})

\item A (large) number of (old) typos have been corrected in the

vignettes (Marco Colombo in \ghpr{1344})

}

}

}

\section{Changes in Rcpp 'hot-fix' release version 1.0.13-1 (2024-11-01)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Use read-only \code{VECTOR_PTR} and \code{STRING_PTR} only with

with R 4.5.0 or later (Kevin in \ghpr{1342} fixing \ghit{1341})

}

\item Changes in Rcpp Deployment:

\itemize{

\item Authors@R is now used in DESCRIPTION as mandated by CRAN

}

}

}

\section{Changes in Rcpp release version 1.0.13 (2024-07-11)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Set R_NO_REMAP if not already defined (Dirk in \ghpr{1296})

\item Add variadic templates to be used instead of generated code

(Andrew Johnson in \ghpr{1303})

\item Count variables were switches to \code{size_t} to avoid warnings

about conversion-narrowing (Dirk in \ghpr{1307})

\item Rcpp now avoids the usage of the (non-API) DATAPTR function when

accessing the contents of Rcpp Vector objects where possible. (Kevin in

\ghpr{1310})

\item Rcpp now emits an R warning on out-of-bounds Vector accesses. This

may become an error in a future Rcpp release. (Kevin in \ghpr{1310})

\item Switch \code{VECTOR_PTR} and \code{STRING_PTR} to new API-compliant

\code{RO} variants (Kevin in \ghpr{1317} fixing \ghit{1316})

}

\item Changes in Rcpp Deployment:

\itemize{

\item Small updates to the CI test containers have been made (\ghpr{1304})

}

}

}

\section{Changes in Rcpp release version 1.0.12 (2024-01-08)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Missing header includes as spotted by some recent tools were

added in two places (Michael Chirico in \ghpr{1272} closing

\ghit{1271}).

\item Casts to avoid integer overflow in matrix row/col selections

have been added (Aaron Lun \ghpr{1281}).

\item Three print format correction uncovered by R-devel were

applied with thanks to Tomas Kalibera (Dirk in \ghpr{1285}).

\item Correct a print format correction in the RcppExports glue code

(Dirk in \ghpr{1288} fixing \ghit{1287}).

\item The upcoming \code{OBJSXP} addition to R 4.4.0 is supported in

the \code{type2name} mapper (Dirk and Iñaki in \ghpr{1293}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item Generated interface code from base R that fails under LTO is now

corrected (Iñaki in \ghpr{1274} fixing a StackOverflow issue).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The caption for third figure in the introductory vignette has

been corrected (Dirk in \ghpr{1277} fixing \ghit{1276}).

\item A small formatting issue was correct in an Rd file as

noticed by R-devel (Dirk in \ghpr{1282}).

\item The Rcpp FAQ vignette has been updated (Dirk in \ghpr{1284}).

\item The \code{Rcpp.bib} file has been refreshed to current package

versions.

}

\item Changes in Rcpp Deployment:

\itemize{

\item The RcppExports file for an included test package has been

updated (Dirk in \ghpr{1289}).

}

}

}

\section{Changes in Rcpp release version 1.0.11 (2023-07-03)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item \code{Rcpp:::CxxFlags()} now quotes only non-standard include path

on linux (Lukasz in \ghpr{1243} closing \ghit{1242}).

\item Two unit tests no longer accidentally bark on stdout (Dirk and

Iñaki in \ghpr{1245}).

\item Compilation under C++20 using \pkg{clang++} and its standard

library is enabled (Dirk in \ghpr{1248} closing \ghit{1244}).

\item Use backticks in a generated \code{.Call()} statement in

\code{RcppExports.R} (Dirk \ghpr{1256} closing \ghit{1255}).

\item Switch to \code{system2()} to capture standard error messages in

error cases (Iñaki in \ghpr{1259} and \ghpr{1261} fixing \ghit{1257}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The CITATION file format has been updated (Dirk in \ghpr{1250}

fixing \ghit{1249}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item A test for \code{qnorm} now uses the more accurate value from R

4.3.0 (Dirk in \ghpr{1252} and \ghpr{1260} fixing \ghit{1251}).

\item Skip tests with path issues on Windows (Iñaki in \ghpr{1258}).

\item Container deployment in continuous integrations was

improved. (Iñaki and Dirk in \ghpr{1264}, Dirk in \ghpr{1269}).

\item Several files receives minor edits to please \code{R CMD check}

from r-devel (Dirk in \ghpr{1267}).

}

}

}

\section{Changes in Rcpp release version 1.0.10 (2023-01-12)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Unwind protection is enabled by default (Iñaki in \ghpr{1225}).

It can be disabled by defining \code{RCPP_NO_UNWIND_PROTECT} before

including \code{Rcpp.h}. \code{RCPP_USE_UNWIND_PROTECT} is not checked

anymore and has no effect. The associated plugin \code{unwindProtect}

is therefore deprecated and will be removed in a future release.

\item The 'finalize' method for Rcpp Modules is now eagerly materialized,

fixing an issue where errors can occur when Module finalizers are run

(Kevin in \ghpr{1231} closing \ghit{1230}).

\item Zero-row \code{data.frame} objects can receive \code{push_back}

or \code{push_front} (Dirk in \ghpr{1233} fixing \ghit{1232}).

\item One remaining \code{sprintf} has been replaced by

\code{snprintf} (Dirk and Kevin in \ghpr{1236} and \ghpr{1237}).

\item Several conversion warnings found by \code{clang++} have been

addressed (Dirk in \ghpr{1240} and \ghpr{1241}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item The C++20, C++2b (experimental) and C++23 standards now have

plugin support like the other C++ standards (Dirk in \ghpr{1228}).

\item The source path for attributes received one more protection

from spaces (Dirk in \ghpr{1235} addressing \ghit{1234}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item Several GitHub Actions have been updated.

}

}

}

\section{Changes in Rcpp release version 1.0.9 (2022-07-02)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Accomodate C++98 compilation by adjusting attributes.cpp (Dirk in

\ghpr{1193} fixing \ghit{1192})

\item Accomodate newest compilers replacing deprecated

\code{std::unary_function} and \code{std::binary_function} with

\code{std::function} (Dirk in \ghpr{1202} fixing \ghit{1201} and

CRAN request)

\item Upon removal from precious list, the tag is set to null

(Iñaki in \ghpr{1205} fixing \ghit{1203})

\item Move constructor and assignment for strings have been added

(Dean Scarff in \ghpr{1219}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item Adjust one overflowing column (Bill Denney in \ghpr{1196} fixing

\ghit{1195})

\item Correct a typo in the FAQ (Marco Colombo in \ghpr{1217})

}

\item Changes in Rcpp Deployment:

\itemize{

\item Accomodate four digit version numbers in unit test (Dirk)

\item Do not run complete test suite to limit test time to CRAN

preference (Dirk in \ghpr{1206})

\item Small updates to the CI test containers have been made

\item Some of changes also applied to an interim release

1.0.8.3 made for CRAN on 2022-03-14.

}

}

}

\section{Changes in Rcpp release version 1.0.8 (2022-01-11)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item \code{STRICT_R_HEADERS} is now enabled by default, see

extensive discussion in \ghit{1158} closing \ghit{898}.

\item A new \code{#define} allows default setting of finalizer

calls for external pointers (Iñaki in \ghpr{1180} closing \ghit{1108}).

\item \code{Rcpp:::CxxFlags()} now quotes the include path generated,

(Kevin in \ghpr{1189} closing \ghit{1188}).

\item New header files \code{Rcpp/Light}, \code{Rcpp/Lighter},

\code{Rcpp/Lightest} and default \code{Rcpp/Rcpp} for fine-grained

access to features (and compilation time) (Dirk \ghpr{1191}

addressing \ghpr{1168}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item A new option \code{signature} allows customization of

function signatures (Travers Ching in \ghpr{1184} and \ghpr{1187} fixing

\ghit{1182})

}

\item Changes in Rcpp Documentation:

\itemize{

\item The Rcpp FAQ has a new entry on how \emph{not} to grow a vector

(Dirk in \ghpr{1167}).

\item Some long-spurious calls to \code{RNGSope} have been removed

from examples (Dirk in \ghpr{1173} closing \ghit{1172}).

\item DOI reference in the bibtex files have been updated per JSS

request (Dirk in \ghpr{1186}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item Some continuous integration components have been updated

(Dirk in \ghpr{1174}, \ghpr{1181}, and \ghpr{1190}).

}

}

}

\section{Changes in Rcpp release version 1.0.7 (2021-07-06)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Refactored \code{Rcpp_PreserveObject} and \code{Rcpp_ReleaseObject}

which are now O(1) (Dirk and Iñaki in \ghpr{1133} and \ghpr{1135}

fixing \ghit{382} and \ghit{1081}).

\item A spuriously assigned variable was removed (Dirk in

\ghpr{1138} fixing \ghit{1137}).

\item Global \code{Rcout} and \code{Rcerr} objects are supported

via a compiler directive (Iñaki in \ghpr{1139} fixing \ghit{928})

\item Add support for \code{Rcpp::message} (Dirk in \ghpr{1146}

fixing \ghit{1145}).

\item The \code{uint32_t} type is used throughout instead of

\code{unsigned int} (Dirk in \ghpr{1153} fixing \ghit{1152}).

\item The \code{cfloat} header for floating point limits is now

included (Dirk in \ghpr{1162} fixing \ghit{1161}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item Packages with dots in their name can now have per-package

include files (Dirk in \ghpr{1132} fixing \ghit{1129}).

\item New argument \code{echo} to quieten optional evaluation in

\code{sourceCpp} (Dirk in \ghpr{1138} fixing \ghit{1126}).

}

\item Forthcoming Changes in Rcpp API:

\itemize{

\item Starting with Rcpp 1.0.8 anticipated in January 2022,

\code{STRICT_R_HEADERS} will be enabled by default, see \ghit{1126}.

}

}

}

\section{Changes in Rcpp release version 1.0.6 (2021-01-14)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Replace remaining few uses of \code{EXTPTR_PTR} with

\code{R_ExternalPtrAddr} (Kevin in \ghpr{1098} fixing

\ghit{1097}).

\item Add \code{push_back} and \code{push_front} for

\code{DataFrame} (Walter Somerville in \ghpr{1099} fixing

\ghit{1094}).

\item Remove a misleading-to-wrong comment (Mattias Ellert in

\ghpr{1109} cleaning up after \ghpr{1049}).

\item Address a sanitizer report by initializing two private

\code{bool} variables (Benjamin Christoffersen in \ghpr{1113}).

\item External pointer finalizer toggle default values were

corrected to true (Dirk in \ghpr{1115}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item Several URLs were updated to https and/or new addresses (Dirk).

}

\item Changes in Rcpp Deployment:

\itemize{

\item Added GitHub Actions CI using the same container-based setup

used previously, and also carried code coverage over (Dirk in

\ghpr{1128}).

}

\item Changes in Rcpp support functions:

\itemize{

\item \code{Rcpp.package.skeleton()} avoids warning from R. (Dirk)

}

}

}

\section{Changes in Rcpp release version 1.0.5 (2020-07-01)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item The exception handler code in \ghpr{1043} was updated to ensure

proper include behavior (Kevin in \ghpr{1047} fixing \ghit{1046}).

\item A missing \code{Rcpp_list6} definition was added to support

R 3.3.* builds (Davis Vaughan in \ghpr{1049} fixing \ghit{1048}).

\item Missing \code{Rcpp_list{2,3,4,5}} definition were added to

the Rcpp namespace (Dirk in \ghpr{1054} fixing \ghit{1053}).

\item A further updated corrected the header include and provided

a missing else branch (Mattias Ellert in \ghpr{1055}).

\item Two more assignments are protected with \code{Rcpp::Shield}

(Dirk in \ghpr{1059}).

\item One call to \code{abs} is now properly namespaced with

\code{std::} (Uwe Korn in \ghpr{1069}).

\item String object memory preservation was corrected/simplified

(Kevin in \ghpr{1082}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item Empty strings are not passed to \code{R CMD SHLIB} which was

seen with R 4.0.0 on Windows (Kevin in \ghpr{1062} fixing

\ghpr{1061}).

\item The \code{short_file_name()} helper function is safer with

respect to temporaries (Kevin in \ghpr{1067} fixing \ghit{1066},

and \ghpr{1071} fixing \ghpr{1070}).

}

\item Changes in Rcpp Sugar:

\itemize{

\item Two \code{sample()} objects are now standard vectors and not

\code{R_alloc} created (Dirk in \ghpr{1075} fixing \ghpr{1074}).

}

\item Changes in Rcpp support functions:

\itemize{

\item \code{Rcpp.package.skeleton()} adjusts for a (documented)

change in R 4.0.0 (Dirk in \ghpr{1088} fixing \ghpr{1087}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The pdf file of the earlier introduction is again typeset

with bibliographic information (Dirk).

\item A new vignette describing how to package C++ libraries has

been added (Dirk in \ghpr{1078} fixing \ghit{1077}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item Travis CI unit tests now run a matrix over the versions of R

also tested at CRAN (rel/dev/oldrel/oldoldrel), and coverage runs

in parallel for a net speed-up (Dirk in \ghpr{1056} and

\ghpr{1057}).

\item The exceptions test is now partially skipped on Solaris as

it already is on Windows (Dirk in \ghpr{1065}).

\item The default CI runner was upgraded to R 4.0.0 (Dirk).

\item The CI matrix spans R 3.5, 3.6, r-release and r-devel (Dirk).

}

}

}

\section{Changes in Rcpp version 1.0.4 (2020-03-13)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Safer \code{Rcpp_list*}, \code{Rcpp_lang*} and

\code{Function.operator()} (Romain in \ghpr{1014}, \ghit{1015}).

\item A number of \code{#nocov} markers were added (Dirk in

\ghpr{1036}, \ghpr{1042} and \ghpr{1044}).

\item Finalizer calls clear external pointer first (Kirill Müller and

Dirk in \ghpr{1038}).

\item Scalar operations with a rhs matrix no longer change the

matrix value (Qiang in \ghpr{1040} fixing (again) \ghit{365}).

\item \code{Rcpp::exception} and \code{Rcpp::stop} are now more

thread-safe (Joshua Pritikin in \ghpr{1043}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item The \code{cppFunction} helper now deals correctly with mulitple

\code{depends} arguments (TJ McKinley in \ghpr{1016} fixing

\ghit{1017}).

\item Invisible return objects are now supported via new option (Kun Ren

in \ghpr{1025} fixing \ghit{1024}).

\item Unavailable packages referred to in \code{LinkingTo} are now

reported (Dirk in \ghpr{1027} fixing \ghit{1026}).

\item The \code{sourceCpp} function can now create a debug DLL on

Windows (Dirk in \ghpr{1037} fixing \ghit{1035}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The \code{.github/} directory now has more explicit guidance on

contributing, issues, and pull requests (Dirk).

\item The Rcpp Attributes vignette describe the new invisible return

object option (Kun Ren in \ghpr{1025}).

\item Vignettes are now included as pre-made pdf files (Dirk in \ghpr{1029})

\item The Rcpp FAQ has a new entry on the recommended

\code{importFrom} directive (Dirk in \ghpr{1031} fixing \ghit{1030}).

\item The bib file for the vignette was once again updated to

current package versions (Dirk).

}

\item Changes in Rcpp Deployment:

\itemize{

\item Added unit test to check if C++ version remains remains aligned

with the package number (Dirk in \ghpr{1022} fixing \ghit{1021}).

\item The unit test system was switched to tinytest (Dirk in

\ghpr{1028}, \ghpr{1032}, \ghpr{1033}).

}

}

}

\section{Changes in Rcpp version 1.0.3 (2019-11-08)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Compilation can be sped up by skipping Modules headers via a

toggle \code{RCPP_NO_MODULES} (Kevin in \ghpr{995} for \ghit{993}).

\item Compilation can be sped up by toggling \code{RCPP_NO_RTTI} which

implies \code{RCPP_NO_MODULES} (Dirk in \ghpr{998} fixing \ghit{997}).

\item \code{XPtr} tags are now preserved in \code{as<>} (Stephen Wade

in \ghpr{1003} fixing \ghit{986}, plus Dirk in \ghpr{1012}).

\item A few more temporary allocations are now protected from garbage

collection (Romain Francois in \ghpr{1010}, and Dirk in \ghpr{1011}).

}

\item Changes in Rcpp Modules:

\itemize{

\item Improved initialization via explicit \code{Rcpp::} prefix

(Riccardo Porreca in \ghpr{980}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item A unit test for Rcpp Class exposure was updated to not fail under

r-devel (Dirk in \ghpr{1008} fixing \ghit{1006}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The \code{Rcpp-modules} vignette received a major review and

edit (Riccardo Porreca in \ghpr{982}).

\item Minor whitespace alignments and edits were made in three

vignettes following the new \pkg{pinp} release (Dirk).

\item New badges for DOI and CRAN and BioConductor reverse dependencies

have been added to README.md (Dirk).

\item Vignettes are now included pre-made (Dirk in \ghpr{1005}

addressing \ghit{1004})).

\item The Rcpp FAQ has two new entries on 'no modules / no rtti' and

exceptions across shared libraries (Dirk in \ghpr{1009}).

}

}

}

\section{Changes in Rcpp version 1.0.2 (2019-07-20)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Files in \code{src/} are now consistentely lowercase (Dirk

in \ghpr{956}).

\item The Rcpp 'API Version' is now accessible via

\code{getRcppVersion()} (Dirk in \ghpr{963}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item The second END wrapper macro also gets \code{UNPROTECT} and

a variable reference suppressing compiler warnings (Dirk in

\ghpr{953} fixing \ghit{951}).

\item Default function arguments are parsed correctly (Pierrick

Roger in \ghpr{977} fixing \ghit{975})

}

\item Changes in Rcpp Sugar:

\itemize{

\item Added decreasing parameter to \code{sort_unique()}

(James Balamuta in \ghpr{958} addressing \ghit{950}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item Travis CI unit tests are now always running irrespective of

the package version (Dirk in \ghpr{954}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The \code{Rcpp-modules} vignette now covers the

\code{RCPP_EXPOSED_*} macros, and the \code{Rcpp-extending} vignette

references it (Ralf Stubner in \ghpr{959} fixing \ghit{952}).

}

}

}

\section{Changes in Rcpp version 1.0.1 (2019-03-17)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Subsetting is no longer limited by an integer range (William

Nolan in \ghpr{920} fixing \ghit{919}).

\item Error messages from subsetting are now more informative

(Qiang and Dirk).

\item \code{Shelter} increases count only on non-null objects

(Dirk in \ghpr{940} as suggested by Stepan Sindelar in \ghit{935}).

\item \code{AttributeProxy::set()} and a few related setters get

\code{Shield<>} to ensure \code{rchk} is happy (Romain in \ghpr{947}

fixing \ghit{946}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item A new plugin was added for C++20 (Dirk in \ghpr{927})

\item Fixed an issue where 'stale' symbols could become registered in

RcppExports.cpp, leading to linker errors and other related issues

(Kevin in \ghpr{939} fixing \ghit{733} and \ghit{934}).

\item The wrapper macro gets an \code{UNPROTECT} to ensure \code{rchk}

is happy (Romain in \ghpr{949}) fixing \ghit{948}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item Three small corrections were added in the 'Rcpp Quickref'

vignette (Zhuoer Dong in \ghpr{933} fixing \ghit{932}).

\item The \code{Rcpp-modules} vignette now has documentation for

\code{.factory} (Ralf Stubner in \ghpr{938} fixing \ghit{937}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item Travis CI again reports to CodeCov.io (Dirk and Ralf Stubner in

\ghpr{942} fixing \ghit{941}).

}

}

}

\section{Changes in Rcpp version 1.0.0 (2018-11-05)}{

\itemize{

\item Happy tenth birthday to Rcpp, and hello release 1.0 !

\item Changes in Rcpp API:

\itemize{

\item The empty destructor for the \code{Date} class was removed

to please g++-9 (prerelease) and \code{-Wdeprecated-copy} (Dirk).

\item The constructor for \code{NumericMatrix(not_init(n,k))} was

corrected (Romain in \ghpr{904}, Dirk in \ghpr{905}, and also

Romain in \ghpr{908} fixing \ghpr{907}).

\item \code{Rcpp::String} no longer silently drops embedded

\code{NUL} bytes in strings but throws new Rcpp exception

\code{embedded_nul_in_string}. (Kevin in \ghpr{917} fixing \ghit{916}).

}

\item Changes in Rcpp Deployment:

\itemize{

\item The Dockerfile for Continuous Integration sets the required

test flag (for release versions) inside the container (Dirk).

\item Correct the \code{R CMD check} call to skip vignettes (Dirk).

}

\item Changes in Rcpp Attributes:

\itemize{

\item A new \code{[[Rcpp::init]]} attribute allows function

registration for running on package initialization (JJ in

\ghpr{903}).

\item Sort the files scanned for attributes in the C locale for

stable output across systems (JJ in \ghpr{912}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The 'Rcpp Extending' vignette was corrected and refers to

\code{EXPOSED} rather than \code{EXPORTED} (Ralf Stubner in

\ghpr{910}).

\item The 'Unit test' vignette is no longer included (Dirk in

\ghpr{914}).

}

}

}

\section{Changes in Rcpp version 0.12.19 (2018-09-20)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item The \code{no_init()} accessor for vectors and matrices is

now wrapped in \code{Shield<>()} to not trigger \code{rchk}

warnings (Kirill Müller in \ghpr{893} addressing \ghit{892}).

\item \code{STRICT_R_HEADERS} will be defined twelve months from

now; until then we protect it via \code{RCPP_NO_STRICT_HEADERS}

which can then be used to avoid the definition; downstream

maintainers are encouraged to update their packages as needed

(Dirk in \ghpr{900} beginning to address \ghit{898}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item Added \code{[[Rcpp::init]]} attribute for registering C++

functions to run during package initialization (JJ in \ghpr{903}

addressing \ghit{902}).

}

\item Changes in Rcpp Modules:

\itemize{

\item Improved \code{exposeClass} functionality along with added

test (Martin Lysy in \ghpr{886} fixing \ghit{879}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item Two typos were fixed in the Rcpp Sugar vignette (Patrick

Miller in \ghpr{895}).

\item Several vignettes now use the \code{collapse} argument to

show output in the corresponding code block.

}

\item Changes in Rcpp Deployment:

\itemize{

\item The old \code{LdFlags()} build helper was marked as

deprecated [but removed for release] (Dirk in \ghpr{887}).

\item Dockerfiles for continuous integration, standard deployment

and 'plus sized' deployment are provided along with builds

(Dirk in \ghpr{894}).

\item Travis CI now use the \code{rcpp/ci} container for tests

(Dirk in \ghpr{896}).

}

}

}

\section{Changes in Rcpp version 0.12.18 (2018-07-21)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item The \code{StringProxy::operator==} is now \code{const}

correct (Romain in \ghpr{855} fixing \ghit{854}).

\item The \code{Environment::new_child()} is now \code{const}

(Romain in \ghpr{858} fixing \ghit{854}).

\item Next \code{eval} codes now properly unwind (Lionel in the large

and careful \ghpr{859} fixing \ghit{807}).

\item In debugging mode, more type information is shown on

\code{abort()} (Jack Wasey in \ghpr{860} and \ghpr{882} fixing

\ghit{857}).

\item A new class was added which allow suspension of the RNG

synchronisation to address an issue seen in \CRANpkg{RcppDE}

(Kevin in \ghpr{862}).

\item Evaluation calls now happen in the \code{base} environment

(which may fix an issue seen between \CRANpkg{conflicted} and some

BioConductor packages) (Kevin in \ghpr{863} fixing \ghit{861}).

\item Call stack display on error can now be controlled more

finely (Romain in \ghpr{868}).

\item The new \code{Rcpp_fast_eval} is used instead of

\code{Rcpp_eval} though this still requires setting

\code{RCPP_USE_UNWIND_PROTECT} before including \code{Rcpp.h} (Qiang

Kou in \ghpr{867} closing \ghit{866}).

\item The \code{Rcpp::unwindProtect()} function extracts the

unwinding from the \code{Rcpp_fast_eval()} function and makes it

more generally available. (Lionel in \ghpr{873} and \ghpr{877}).

\item The \code{tm_gmtoff} part is skipped on AIX too

(\ghpr{876}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item The \code{sourceCpp()} function now evaluates R code in the

correct local environment in which a function was compiled (Filip

Schouwenaars in \ghpr{852} and \ghpr{869} fixing \ghit{851}).

\item Filenames are now sorted in a case-insenstive way so that

the \code{RcppExports} files are more stable across locales (Jack

Wasey in \ghpr{878}).

}

\item Changes in Rcpp Sugar:

\itemize{

\item The sugar functions \code{min} and \code{max} now recognise

empty vectors (Dirk in \ghpr{884} fixing \ghit{883}).

}

}

}

\section{Changes in Rcpp version 0.12.17 (2018-05-09)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item The random number \code{Generator} class no longer inherits from

\code{RNGScope} (Kevin in \ghpr{837} fixing \ghit{836}).

\item A new class, \code{SuspendRNGSynchronizationScope}, can be created

and used to ensure that calls to Rcpp functions do not attempt to call

\code{::GetRNGstate()} or \code{::PutRNGstate()} for the duration of

some code block.

\item A spurious parenthesis was removed to please gcc8 (Dirk

fixing \ghit{841})

\item The optional \code{Timer} class header now undefines

\code{FALSE} which was seen to have side-effects on some platforms

(Romain in \ghpr{847} fixing \ghpr{846}).

\item Optional \code{StoragePolicy} attributes now also work for

string vectors (Romain in \ghpr{850} fixing \ghit{849}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item A few old typesetting conventions from the prior Rnw format

have been corrected (Peter Hickey in \ghpr{831}; Joris Meys; Dirk)

\item Two internal links to the introduction published in JSS have been

updated to the changed filename given the newer TAS introduction.

\item Some remaining backticks were replaced with straight quotes

(Ralf Stubner in \ghpr{845}).

\item A citation to the Rcpp introducion in the The American

Statistician has been added to the introductory and FAQ vignettes.

}

}

}

\section{Changes in Rcpp version 0.12.16 (2018-03-08)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Rcpp now sets and puts the RNG state upon each entry to an Rcpp

function, ensuring that nested invocations of Rcpp functions manage the

RNG state as expected (Kevin in \ghpr{825} addressing \ghit{823}).

\item The \code{R::pythag} wrapper has been commented out; the underlying

function has been gone from R since 2.14.0, and \code{::hypot()} (part of

C99) is now used unconditionally for complex numbers (Dirk in \ghpr{826}).

\item The \code{long long} type can now be used on 64-bit Windows (Kevin

in \ghpr{811} and again in \ghpr{829} addressing \ghit{804}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item Code generated with \code{cppFunction()} now uses \code{.Call()}

directly (Kirill Müller in \ghpr{813} addressing \ghit{795}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The Rcpp FAQ vignette is now indexed as `Rcpp-FAQ`; a stale Gmane

reference was removed and entry for getting compilers under Conda was added.

\item The top-level README.md now has a \emph{Support} section.

\item The Rcpp.bib reference file was refreshed to current versions.

}

}

}

\section{Changes in Rcpp version 0.12.15 (2018-01-16)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item Calls from exception handling to \code{Rf_warning()} now correctly

set an initial format string (Dirk in \ghpr{777} fixing \ghit{776}).

\item The 'new' Date and Datetime vectors now have \code{is_na} methods

too. (Dirk in \ghpr{783} fixing \ghit{781}).

\item Protect more temporary \code{SEXP} objects produced by \code{wrap}

(Kevin in \ghpr{784}).

\item Use public R APIs for \code{new_env} (Kevin in \ghpr{785}).

\item Evaluation of R code is now safer when compiled against R

3.5 (you also need to explicitly define \code{RCPP_USE_UNWIND_PROTECT}

before including \code{Rcpp.h}). Longjumps of all kinds (condition

catching, returns, restarts, debugger exit) are appropriately

detected and handled, e.g. the C++ stack unwinds correctly

(Lionel in \ghpr{789}). [ Committed but subsequently disabled in release

0.12.15 ]

\item The new function \code{Rcpp_fast_eval()} can be used for

performance-sensitive evaluation of R code. Unlike

\code{Rcpp_eval()}, it does not try to catch errors with

\code{tryEval} in order to avoid the catching overhead. While this

is safe thanks to the stack unwinding protection, this also means

that R errors are not transformed to an \code{Rcpp::exception}. If

you are relying on error rethrowing, you have to use the slower

\code{Rcpp_eval()}. On old R versions \code{Rcpp_fast_eval()}

falls back to \code{Rcpp_eval()} so it is safe to use against any

versions of R (Lionel in \ghpr{789}). [ Committed but subsequently

disabled in release 0.12.15 ]

\item Overly-clever checks for \code{NA} have been removed (Kevin in

\ghpr{790}).

\item The included tinyformat has been updated to the current version,

Rcpp-specific changes are now more isolated (Kirill in \ghpr{791}).

\item Overly picky \emph{fall-through} warnings by gcc-7 regarding

\code{switch} statements are now pre-empted (Kirill in \ghpr{792}).

\item Permit compilation on ANDROID (Kenny Bell in \ghpr{796}).

\item Improve support for NVCC, the CUDA compiler (Iñaki Ucar in

\ghpr{798} addressing \ghit{797}).

\item Speed up tests for NA and NaN (Kirill and Dirk in \ghpr{799} and

\ghpr{800}).

\item Rearrange stack unwind test code, keep test disabled for now (Lionel

in \ghpr{801}).

\item Further condition away protect unwind behind #define (Dirk in

\ghpr{802}).

}

\item Changes in Rcpp Attributes:

\itemize{

\item Addressed a missing Rcpp namespace prefix when generating a C++

interface (James Balamuta in \ghpr{779}).

}

\item Changes in Rcpp Documentation:

\itemize{

\item The Rcpp FAQ now shows \code{Rcpp::Rcpp.plugin.maker()} and not the

outdated \code{:::} use applicable non-exported functions.

}

}

}

\section{Changes in Rcpp version 0.12.14 (2017-11-17)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item New const iterators functions \code{cbegin()} and \code{cend()}

added to \code{MatrixRow} as well (Dan Dillon in \ghpr{750}).

\item The \code{Rostream} object now contains a \code{Buffer} rather than

allocating one (Kirill Müller in \ghpr{763}).

\item New \code{DateVector} and \code{DatetimeVector} classes are now the

default fully deprecating the old classes as announced one year ago.

}

\item Changes in Rcpp Package:

\itemize{

\item DESCRIPTION file now list doi information per CRAN suggestion.

}

\item Changes in Rcpp Documentation:

\itemize{

\item Update CITATION file with doi information and PeerJ preprint.

}

}

}

\section{Changes in Rcpp version 0.12.13 (2017-09-24)}{

\itemize{

\item Changes in Rcpp API:

\itemize{

\item New const iterators functions \code{cbegin()} and \code{cend()} have

been added to several vector and matrix classes (Dan Dillon and James

Balamuta in \ghpr{748}) starting to address \ghit{741}).

}

\item Changes in Rcpp Modules:

\itemize{

\item Misplacement of one parenthesis in macro \code{LOAD_RCPP_MODULE}

was corrected (Lei Yu in \ghpr{737})

}

\item Changes in Rcpp Documentation: