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Comparison · Infra & APIs
highr vs vdiffr
A side-by-side editorial comparison of highr and vdiffr — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:maintenance
highr vs vdiffr: at a glance
What is highr?
highr is finished software: one-line releases every year or two
highr does syntax highlighting for knitr output, and every release in this window is a single line of change. The most recent wraps hilight() output in xfun::raw_string() for nicer printing; before that, a rename of two LaTeX command macros and two bumps to the minimum R version. There is no feature work here at all.
What is vdiffr?
vdiffr finished its job in 2021 and has been tracking compilers ever since.
vdiffr generates deterministic SVG snapshots so plot changes show up as test failures. Its recent history is almost entirely toolchain: UCRT Windows compatibility twice, a revert to C++11 to work around a GCC issue, and renaming the internal SVG device so it stops colliding with svglite. The only functional additions in view are snapshot variants in 1.0.8 and a testthat fix so snapshots are no longer auto-deleted when a test errors or skips. The last release was October 2024.
highr vs vdiffr: editorial side-by-side
highr
0.0INFRA · APIS
highr is finished software: one-line releases every year or two
◆ Current state
highr does syntax highlighting for knitr output, and every release in this window is a single line of change. The most recent wraps hilight() output in xfun::raw_string() for nicer printing; before that, a rename of two LaTeX command macros and two bumps to the minimum R version. There is no feature work here at all.
◆ Where it's heading
This is a completed micro-package in the knitr ecosystem, maintained only to stay installable and consistent with its parent packages. Changes are triggered by knitr's needs or CRAN's requirements rather than by any plan of its own, and the gaps between releases run to years.
◆ Prediction
Expect the next release whenever knitr or CRAN requires one, with a similarly single-line changelog.
vdiffr
0.0INFRA · APIS
vdiffr finished its job in 2021 and has been tracking compilers ever since.
◆ Current state
vdiffr generates deterministic SVG snapshots so plot changes show up as test failures. Its recent history is almost entirely toolchain: UCRT Windows compatibility twice, a revert to C++11 to work around a GCC issue, and renaming the internal SVG device so it stops colliding with svglite. The only functional additions in view are snapshot variants in 1.0.8 and a testthat fix so snapshots are no longer auto-deleted when a test errors or skips. The last release was October 2024.
◆ Where it's heading
The package reached its intended shape at 1.0.0, when snapshot management moved to testthat and vdiffr shed most of its own R and JavaScript code to become a reproducible SVG engine and nothing more. There is not much left to add to that, and the release stream since reads accordingly: it moves when a compiler, an R version, or testthat moves. For a testing dependency this is a healthy end state, though it does mean the package inherits whatever the graphics engine does to snapshot stability.
◆ Prediction
The entries do not support predicting a feature release. The likely next change is a compatibility fix prompted by a compiler or a testthat change, as every release since 1.0.2 has been.
Alternatives to highr and vdiffr
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 highr or vdiffr.
pkgbuild
A package whose release calendar is written by whoever ships the next Rtools.
DNSControl
DNSControl v5 is feature complete and counting down to an August ship date
git2r
git2r stopped vendoring libgit2 and now expects it on the system
Casdoor
casdoor ships several times a day, mostly tightening organization boundaries.
downlit
downlit's HTML contract was set in 0.4.0; every release since tracks R itself.
See all highr alternatives → · See all vdiffr alternatives →
Recent activity from highr and vdiffr
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5mo agohighrhilight() output wrapped in raw_string()
- 1y agovdiffrSnapshot variants supported
- 2y agohighrLaTeX macros renamed to \hlsng and \hldef
- 2y agovdiffrRevert to C++11 for a GCC workaround
- 2y agovdiffrRename internal SVG device to avoid svglite collision
- 3y agohighrMinimum R version raised to 3.3.0
- 4y agovdiffrUCRT Windows compatibility under Rtools42
- 4y agovdiffrUCRT Windows compatibility
- 5y agovdiffrSnapshots survive errored and skipped tests
- 5y agohighrmarkdown added to Suggests for knitr
- 5y agohighrMinimum R version raised to 3.2.3
- 8y agohighrInternal pandoc LaTeX command table added
Frequently asked questions
What is the difference between highr and vdiffr?
Both compete on the same themes — maintenance — within Infra & APIs. highr and vdiffr 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 highr better than vdiffr?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. highr and vdiffr 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 highr?
Top highr alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "highr alternatives" section above for the current picks, or visit /alternatives/highr for the full list with editorial commentary on each.
What are the best alternatives to vdiffr?
Top vdiffr alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "vdiffr alternatives" section above for the current picks, or visit /alternatives/vdiffr for the full list with editorial commentary on each.