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Comparison · Infra & APIs
Cobbler vs valr
A side-by-side editorial comparison of Cobbler and valr — release velocity, themes, recent moves, and the top alternatives to consider.
Cobbler vs valr: at a glance
What is Cobbler?
A backport branch kept alive for downstreams, with the main line nowhere in sight.
Every release in Cobbler's visible history describes itself the same way: backports from main to make Cobbler more stable for the community. The 3.3.x line has absorbed real work under that framing — collection indices, lazy loading, new XML-RPC endpoints — but none of it originates here. The most recent item is a 3.2.3 build carrying the CVE-2024-47533 fix to an older branch, with its Fixed and Added sections left as literal TBD placeholders.
What is valr?
valr's interval verbs now read genomic files in place instead of demanding a loaded tibble.
valr reimplements bedtools-style genome interval arithmetic as tidyverse verbs backed by C++. Its long project has been closing the behavioural gap with bedtools — the book-ended interval semantics finally match in 0.10.0, three releases after the deprecation began. The July release also ends the assumption that intervals must be in memory: bed_map(), bed_intersect(), bed_subtract(), bed_coverage() and bed_window() accept a bigWig or bigBed path or URL where an interval table used to go.
Cobbler vs valr: editorial side-by-side
Cobbler
0.0INFRA · APIS
A backport branch kept alive for downstreams, with the main line nowhere in sight.
◆ Current state
Every release in Cobbler's visible history describes itself the same way: backports from main to make Cobbler more stable for the community. The 3.3.x line has absorbed real work under that framing — collection indices, lazy loading, new XML-RPC endpoints — but none of it originates here. The most recent item is a 3.2.3 build carrying the CVE-2024-47533 fix to an older branch, with its Fixed and Added sections left as literal TBD placeholders.
◆ Where it's heading
This is a stabilization branch serving downstream packagers rather than a product advancing on its own. The work that does land splits cleanly into three buckets: distribution coverage (Ubuntu 22.04, Debian 12, AlmaLinux, RHEL9, openSUSE and SLE signatures), API surface for integrators, and security backports. 3.3.3 flagged dump_vars as the replacement for get_blended_data as of 3.4.0 — a version that has not appeared in any release since.
◆ Prediction
Expect continued single-purpose backports to 3.3.x and older branches as CVEs surface; the entries give no indication of when or whether the 3.4.0 work these releases keep deferring to will ship.
valr
0.0INFRA · APIS
valr's interval verbs now read genomic files in place instead of demanding a loaded tibble.
◆ Current state
valr reimplements bedtools-style genome interval arithmetic as tidyverse verbs backed by C++. Its long project has been closing the behavioural gap with bedtools — the book-ended interval semantics finally match in 0.10.0, three releases after the deprecation began. The July release also ends the assumption that intervals must be in memory: bed_map(), bed_intersect(), bed_subtract(), bed_coverage() and bed_window() accept a bigWig or bigBed path or URL where an interval table used to go.
◆ Where it's heading
Two arcs converge here. One is compatibility: min_overlap arrived with a deprecation warning in 0.9.0 and its default flipped from 0 to 1 in 0.10.0, so book-ended intervals are excluded by default as bedtools does, with the internal calculations in bed_closest() and friends deliberately left counting them. The other is the file-backed path, which grew out of the cpp11bigwig dependency adopted in 0.8.3 for read_bigwig() and re-exported in 0.9.0 — reading a file became querying one. Underneath, the C++ base keeps getting lighter: Rcpp swapped for cpp11, rlang cut to a single function, per-group memory copies removed from three verbs.
◆ Prediction
Only five verbs take a file argument today and bed_closest(), bed_glyph() and the statistical verbs do not, so extending the file-backed path across the rest of the API is the obvious follow-up. The deprecated tibble re-exports and the now-defunct n_fields argument suggest continued removal of the compatibility layer in the next minor release.
Alternatives to Cobbler and valr
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 Cobbler or valr.
mpactr
mpactr spent two spring releases normalizing case in metadata after users kept tripping on it.
surveytidy
surveytidy taught every dplyr verb to operate on a whole collection of surveys at once.
surveycore
surveycore declared its API stable with every survey design type covered.
PEIMAN2
PEIMAN2 cut its annotation database loose from its release cycle without breaking CRAN.
prospectr
prospectr spent its biggest release in years fixing spectra it had been quietly mangling.
See all Cobbler alternatives → · See all valr alternatives →
Recent activity from Cobbler and valr
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1mo agovalrInterval verbs read bigWig and bigBed files directly ⚡
- 1mo agoCobblerCobbler 3.2.3 backports the CVE-2024-47533 admin API fix
- 7mo agovalrbed_slop() and bed_flank() preserve input row order
- 8mo agovalrmin_overlap introduced; C++ backend moves from Rcpp to cpp11
- 1y agovalrTest updated for ggplot2 3.6.0
- 1y agovalrread_bigwig() switches to cpp11bigwig; read_gtf() deprecated
- 1y agoCobblerCobbler 3.3.7 closes an admin-API authentication bypass
- 1y agovalrCRAN Rd link NOTE and maintainer email change
- 2y agoCobblerCobbler 3.3.6 adds EFI support to buildiso
- 2y agoCobblerCobbler 3.3.5 adds collection indices and lazy loading
- 2y agoCobblerCobbler 3.3.4 extends packaging to Ubuntu 22.04 and Debian 12
- 4y agoCobblerCobbler 3.3.3 adds resolved-value XML-RPC endpoints for Uyuni
Frequently asked questions
What is the difference between Cobbler and valr?
They serve adjacent needs but don't currently overlap on shipped themes. Cobbler and valr 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 Cobbler better than valr?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Cobbler and valr 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 Cobbler?
Top Cobbler alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Cobbler alternatives" section above for the current picks, or visit /alternatives/cobbler for the full list with editorial commentary on each.
What are the best alternatives to valr?
Top valr alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "valr alternatives" section above for the current picks, or visit /alternatives/valr for the full list with editorial commentary on each.