R Observatory: Metrics for furrr version 0.4.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

furrr

0.4.0Package record

Apply Mapping Functions in Parallel using Futures

132packages dependsuggested by 64

1.4Mdownloads / year

94.4%test coverage

13/13flavors OK

Overview

About

Maintained by Davis VaughanCRAN page ↗GitHub ↗Website ↗Issues ↗Declared funder: Posit Software, PBC

Implementations of the family of map() functions from 'purrr' that can be resolved using any 'future'-supported backend, e.g. parallel on the local machine or distributed on a compute cluster.

Changes in 0.4.0

Breaking changes

All deprecated future_invoke_map_*() variants have been removed.
All *_raw() variants from purrr have been removed, such as future_map_raw(). purrr 1.0.0 has deprecated these, they have limited use, and as far as we can tell no packages were using them (#298).
future_options() has been removed. It has been defunct since furrr 0.3.0 (May 2022).

Features / Fixes

New future_map_vec(), future_map2_vec(), future_pmap_vec(), and future_imap_vec() to align with purrr (#261).
When a furrr function errors, purrr's error index is no longer confusingly reported (#250).

Show all changes in 0.4.0Hide the rest of the changes in 0.4.0

furrr_options() no longer drops the "ordering" attribute when casting non-integer chunk_size or scheduling to integer (#289, #290).
furrr now looks up the purrr mapping function on the worker itself, rather than sending over its own copy of the function. This avoids possible issues when you have, say, purrr 1.0.0 locally but purrr 0.3.5 on the worker, where the internals of the purrr function may have changed between the two versions (#253).
Fixed a rare issue where the deprecated .progress bar may cause an integer overflow with extremely long inputs (#288).
Detangled furrr's documentation from purrr's to avoid some documentation inheritance issues (#286).
Fixed an issue where generating random seeds could sporadically fail (#271, @HenrikBengtsson).
Updated documentation examples and vignettes to use the base R pipe (#285, @HenrikBengtsson).

Version requirements

furrr now requires R >=4.1.0, which is in line with the tidyverse (#285).
lifecycle >=1.0.5, rlang >=1.1.7, purrr >=1.2.1, vctrs >=0.7.0, globals >=0.19.1, and future >=1.70.0 are now required.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("furrr", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("futureverse/furrr")

Development version from futureverse/furrr. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-furrr

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-furrr

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-furrr

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 4.0 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.4.0

READMEYes · 451 wordsVignettes· In the repository, left out of the releaseNEWSYes · 100% structured · mentions 0.4.0Citation fileNoWebsiteYes · pkgdown

The repository also keeps web-only articles.

Help pages: 7 (1 internal)includes a package overview page
Examples that run: 100%6 run in a plain check
Exported functions with examples: 100%
Documented parameters: 96%
Return-value docs: 83%
Help pages citing references: 0%

How these are measured

Downloads

1.4M

CRAN downloads in the past year

Rank #329 · ~3.8K/day · ~114.3K/mo

Releases R versions

Daily download trend is not available in this view yet.

99.2K30 days

305.9K90 days

1.4M1 year

Compare downloads with other packages →

Also on25.3K r2u207 autocran59K conda_forge539 c2d4u

How downloads are counted

Repository

futureverse/furrr ↗Organization: futureverse

744Stars

38Forks

3Open issues

1Open PRs

8Releases

344Commits

7Commit identities

344 commits · Last activity 2026-03-31 · +0.3% stars, 30d · Default branch at 0.4.0.9000, ahead of CRAN 0.4.0 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): 90%
Median days to close, 50 most recently updated closed issues: 91
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-10-19 · 7262026-09-27 · 744

How these are measured

PracticesBeta

13 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/futureverse/furrr on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (2)

Code of conductContributing guide (inherited from futureverse)

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-03-31 · The repository has a site deploy workflow

pkgdown site last built 2026-03-31

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 2 practices

CRAN release process (1)

revdep/

Lint, format, editor (3)

Lint workflowAirRStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Installing furrr adds 12 packages (8 with compiled code, 4.3 MB of source tarballs). Heaviest: vctrs 1.0 MB, rlang 766 KB, cli 629 KB.

Depends (2)

R >= 4.1.0future

Imports (4)

globals purrr rlang vctrs

LinkingTo (0)

none

Suggests (7)

carrier covr dplyr knitr parallelly (>= 1.46.1)testthat tidyselect

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

132direct

129indirect

Imports 132

Suggested by 64

Show the 48 most downloaded dependentsHide the 48 most downloaded dependents

Depends, Imports or LinkingTo, most downloaded first

and 84 more dependents and 64 packages that suggest it on CRAN ↗

How these are counted

Code & Tests

People & History

People (4)

Davis Vaughan

Author, Maintainer since 0.1.0 (2018)

Henrik Bengtsson

Author · added in 0.4.0

Matt Dancho

Author

Posit Software, PBC

Copyright holder, Funder · added in 0.4.0

Listed in earlier versions (1)

RStudio

no longer listed · 0.2.0 to 0.3.1

Releases (8)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.4.0Latest
record
2026-03-31 · current release · diff ↗ ·
removed 13 exports
future_imap_raw, future_invoke_map, future_invoke_map_chr, future_invoke_map_dbl, future_invoke_map_dfc, future_invoke_map_dfr, future_invoke_map_int, future_invoke_map_lgl, future_invoke_map_raw, future_map2_raw, future_map_raw, future_options, future_pmap_raw

added 4 exports
future_imap_vec, future_map2_vec, future_map_vec, future_pmap_vec
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.3.1
record
2022-08-15 · diff ↗
0.3.0
record
2022-05-04 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.2.3
record
2021-06-25 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.2.2
record
2021-01-29 · diff ↗
0.2.1
record
2020-10-21 · diff ↗
0.2.0
record
2020-10-12 · diff ↗ ·
added 10 exports
furrr_options, future_imap_raw, future_invoke_map_raw, future_iwalk, future_map2_raw, future_map_raw, future_pmap_raw, future_pwalk, future_walk, future_walk2
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.1.0
record
2018-05-16

Show 1 earlier eventHide 1 earlier event

R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-05-16
Total releases: 8 / 8 yrs
License: MIT + file LICENSE OSI · relicensed from LGPL (>= 2.1) in 0.2.0
Minimum R: ≥ 4.1.0
Download size: 890 KB

Appears in task views

High-Performance and Parallel Computing with R

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("furrr")

Format

Vaughan, D., Posit Software, PBC, Bengtsson, H., & Dancho, M. (2026). furrr: Apply Mapping Functions in Parallel using Futures (Version 0.4.0) [Computer software]. https://doi.org/10.32614/CRAN.package.furrr

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for furrr version 0.4.0 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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