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Comparison · DevOps

rlang vs uproot5

A side-by-side editorial comparison of rlang and uproot5 — release velocity, themes, recent moves, and the top alternatives to consider.

rlang vs uproot5: at a glance

Featurerlanguproot5
SectorDevOpsDevOps
Velocity score0.00.0
Sparks · 30d00
Top themestidyverse, metaprogramming, c-api, tidyevalrntuple, root files, particle physics, gpu decompression
Last editorial update1h ago2h ago
WebsiteVisit →Visit →

What is rlang?

rlang moved tidyeval off R's private internals and onto official C API.

rlang is at 1.3.0, which rewrote hash() to walk objects itself rather than lean on R's serialiser — fixing stability against bytecode and shrinkable vectors, at the cost of invalidating every existing hash value. The release before it closed a multi-year effort: rlang and tidyeval are now fully backed by official C APIs of R, work the notes credit to collaboration with R core.

Read the full rlang trajectory →

What is uproot5?

Uproot quietly made RNTuple the default write format — filed under 'chore'.

Uproot ships small, frequent 5.7.x releases in which the RNTuple work dominates and is often buried below the feature list. Since switching the default write format to RNTuple in 5.7.0, the releases have been about making that path complete: entry bounds and report=True for RNTuple.iterate, GPU interpretation of RNTuple data with nvCOMP decompression, support for the v1.0.1.0 format, and the library kwarg finished. Two of the six releases in this window list no new features at all.

Read the full uproot5 trajectory →

rlang vs uproot5: editorial side-by-side

R
rlang
DEVOPS
0.0

rlang moved tidyeval off R's private internals and onto official C API.

◆ Current state

rlang is at 1.3.0, which rewrote hash() to walk objects itself rather than lean on R's serialiser — fixing stability against bytecode and shrinkable vectors, at the cost of invalidating every existing hash value. The release before it closed a multi-year effort: rlang and tidyeval are now fully backed by official C APIs of R, work the notes credit to collaboration with R core.

◆ Where it's heading

The through-line across this whole window is one migration. Release after release retires something that depended on private R internals — env_browse(), env_unlock(), ns_registry_env(), the SEXP iterator now behind a compile flag — and replaces it with sanctioned API. The hash() rewrite in 1.3.0 is the same instinct applied to the serialiser: own the behaviour rather than inherit it.

◆ Prediction

With the C API migration declared complete in 1.2.0, the next releases are likely to be ordinary maintenance and type-checking additions rather than further defunct markings.

U
uproot5
DEVOPS
0.0

Uproot quietly made RNTuple the default write format — filed under 'chore'.

◆ Current state

Uproot ships small, frequent 5.7.x releases in which the RNTuple work dominates and is often buried below the feature list. Since switching the default write format to RNTuple in 5.7.0, the releases have been about making that path complete: entry bounds and report=True for RNTuple.iterate, GPU interpretation of RNTuple data with nvCOMP decompression, support for the v1.0.1.0 format, and the library kwarg finished. Two of the six releases in this window list no new features at all.

◆ Where it's heading

This is a migration project wearing patch-release clothing. The direction is that RNTuple, ROOT's newer columnar format, becomes what Uproot writes and reads by default, with the older TTree path maintained rather than developed. The GPU decompression work points further out: reading physics data straight into accelerator memory rather than staging it through the CPU. Expect the remaining gaps to keep surfacing as bug fixes in the RNTuple path as more of the field writes in the new format.

◆ Prediction

Continued 5.7.x patches closing RNTuple feature parity with TTree, with the GPU and nvCOMP path the most likely area to gain rather than just get fixed.

Alternatives to rlang and uproot5

Other DevOps 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 rlang or uproot5.

See all rlang alternatives → · See all uproot5 alternatives →

Recent activity from rlang and uproot5

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1mo agorlanghash() rewritten; all existing hash values change
  2. 1mo agouproot55.7.5: RNTuple library kwarg finished, byte-swap fix in dtype interpretation
  3. 3mo agouproot5Version 5.7.4
  4. 4mo agorlangrlang and tidyeval now fully backed by R's official C API
  5. 4mo agouproot55.7.3: corrupted free_num_bytes and mktree subdirectory fixes
  6. 5mo agouproot55.7.2: GPU interpretation of RNTuple data with nvCOMP decompression
  7. 6mo agouproot5Version 5.7.1
  8. 6mo agouproot55.7.0: RNTuple becomes the default write format
  9. 7mo agorlangR 4.0 floor, new %&&% operator, C API progress
  10. 1y agorlangenv_unlock() and env_browse() defunct as private API disappears
  11. 1y agorlangFull backtraces reported during knitting
  12. 2y agorlangMissing C utilities and modern last_trace() hyperlinks

Frequently asked questions

What is the difference between rlang and uproot5?

They serve adjacent needs but don't currently overlap on shipped themes. rlang and uproot5 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 rlang better than uproot5?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. rlang and uproot5 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 DevOps products to evaluate alongside.

What are the best alternatives to rlang?

Top rlang alternatives in DevOps are ranked by recent ship velocity. Browse the "rlang alternatives" section above for the current picks, or visit /alternatives/rlang for the full list with editorial commentary on each.

What are the best alternatives to uproot5?

Top uproot5 alternatives in DevOps are ranked by recent ship velocity. Browse the "uproot5 alternatives" section above for the current picks, or visit /alternatives/uproot for the full list with editorial commentary on each.