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Comparison · Infra & APIs
pkgbuild vs RSelenium
A side-by-side editorial comparison of pkgbuild and RSelenium — release velocity, themes, recent moves, and the top alternatives to consider.
pkgbuild vs RSelenium: at a glance
What is pkgbuild?
A package whose release calendar is written by whoever ships the next Rtools.
pkgbuild is the layer devtools and pak use to run R CMD build and R CMD INSTALL, and most of what it does is know where the compiler is. Six of its last eight releases are about Rtools: supporting Rtools43, 44 and 45, finding installations that did not come from an installer, reading the Windows registry correctly again, and handling aarch64 Windows when the expected environment variable is unset. The feature surface is a handful of Config/build/* DESCRIPTION options for packages with unusual build needs.
What is RSelenium?
RSelenium's only release in eight years touched documentation and CI, nothing else.
1.7.10, published February 2026, contains documentation updates, a move from Travis CI to GitHub Actions, and CRAN note fixes — no functional change at all, and it is the first release since September 2018. The releases before it are equally quiet: a dummy argument in `executeScript`, `phantom()` made defunct, and credential-exposure and driver-startup fixes. The last real capability change in the window is `rsDriver()` arriving in 1.6.4, which replaced the defunct `checkForServer` and `startServer` helpers.
pkgbuild vs RSelenium: editorial side-by-side
pkgbuild
0.0INFRA · APIS
A package whose release calendar is written by whoever ships the next Rtools.
◆ Current state
pkgbuild is the layer devtools and pak use to run R CMD build and R CMD INSTALL, and most of what it does is know where the compiler is. Six of its last eight releases are about Rtools: supporting Rtools43, 44 and 45, finding installations that did not come from an installer, reading the Windows registry correctly again, and handling aarch64 Windows when the expected environment variable is unset. The feature surface is a handful of Config/build/* DESCRIPTION options for packages with unusual build needs.
◆ Where it's heading
This is maintenance defined entirely by other people's release schedules — R minor versions, Rtools versions, and the DESCRIPTION options downstream package authors ask for. The one structural change worth noting is that on R 4.3 and later the package stopped special-casing Windows and now tests for build tools by compiling a small package, the same way it always has on Unix. That is the direction: fewer platform branches, more probing.
◆ Prediction
Expect the next release to add support for whichever Rtools ships alongside the next R minor version, and expect the Windows registry lookups to keep shrinking as the compile-probe approach proves out.
RSelenium
0.0INFRA · APIS
RSelenium's only release in eight years touched documentation and CI, nothing else.
◆ Current state
1.7.10, published February 2026, contains documentation updates, a move from Travis CI to GitHub Actions, and CRAN note fixes — no functional change at all, and it is the first release since September 2018. The releases before it are equally quiet: a dummy argument in `executeScript`, `phantom()` made defunct, and credential-exposure and driver-startup fixes. The last real capability change in the window is `rsDriver()` arriving in 1.6.4, which replaced the defunct `checkForServer` and `startServer` helpers.
◆ Where it's heading
This is a package being kept installable rather than developed. The 2016-2018 era did the architectural work — moving process management out to wdman, recommending Docker for running a Selenium server, retiring PhantomJS — and nothing since has revisited it. That leaves RSelenium sitting on the older WebDriver arrangement while the browser-automation landscape has moved on.
◆ Prediction
Further releases, if any, are likely to be CRAN-compliance rather than feature work; the entries give no indication of active development resuming.
Alternatives to pkgbuild and RSelenium
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either pkgbuild or RSelenium.
Rhino
Rhino's release line runs on release candidates, and 1.12 makes room for coding agents.
Windmill
Windmill is dismantling the paywall between itself and the data stack
Resend
Resend is wiring itself into every agent runtime it can reach, one standard at a time
vdiffr
vdiffr finished its job in 2021 and has been tracking compilers ever since.
rsconnect
The deployment client is being rebuilt around credentials it never has to store.
See all pkgbuild alternatives → · See all RSelenium alternatives →
Recent activity from pkgbuild and RSelenium
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5mo agoRSeleniumRSelenium 1.7.10 updates docs and moves CI to GitHub Actions
- 1y agopkgbuildnever-clean build option; aarch64 Windows Rtools detection
- 1y agopkgbuildWindows build-tool detection now probes by compiling
- 1y agopkgbuildFix Rtools 4.3 and 4.4 discovery on Windows
- 2y agopkgbuildSupport R 4.4.x and Rtools44
- 2y agopkgbuildDrops crayon, rprojroot and prettyunits dependencies
- 3y agopkgbuildbootstrap.R now runs under pkgbuild_process and pak
- 7y agoRSeleniumRSelenium 1.7.4 retires phantom() and fixes rsDriver
- 9y agoRSeleniumRSelenium 1.7.1 fixes rsDriver argument passing
- 9y agoRSeleniumRSelenium 1.7.0 makes rsDriver the entry point
- 9y agoRSeleniumRSelenium 1.6.2 adds selectTag, moves to httr
- 9y agoRSeleniumRSelenium 1.5.0 fixes executeScript and RStudio completion
Frequently asked questions
What is the difference between pkgbuild and RSelenium?
They serve adjacent needs but don't currently overlap on shipped themes. pkgbuild and RSelenium are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is pkgbuild better than RSelenium?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. pkgbuild and RSelenium are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to pkgbuild?
Top pkgbuild alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "pkgbuild alternatives" section above for the current picks, or visit /alternatives/pkgbuild for the full list with editorial commentary on each.
What are the best alternatives to RSelenium?
Top RSelenium alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "RSelenium alternatives" section above for the current picks, or visit /alternatives/rselenium for the full list with editorial commentary on each.