Apache CloudStack
CloudStack ships two LTS branches in lockstep and publishes nothing but pointers
Comparison · Infra & APIs
Skipper vs stRoke
A side-by-side editorial comparison of Skipper and stRoke — release velocity, themes, recent moves, and the top alternatives to consider.
Skipper vs stRoke: at a glance
What is Skipper?
Skipper trims a 4x memory regression out of routesrv, days after shipping h2c
Zalando's HTTP router ships patch tags almost daily, and most carry a single dependency bump or a one-line auth fix. The substance in this window is v0.27.63, which stops routesrv holding an uncompressed route tree alongside the compressed buffer: retained memory in the release's own benchmark falls from 30.7 MB to 2.0 MB, undoing most of the 4x increase zone-aware routing had introduced. Around it sit narrow auth repairs, and an eskip parser change that finally accepts negative numeric arguments in predicates and filters.
What is stRoke?
Split itself in two, keeping the stroke-trial functions and exporting the rest
stRoke is now deliberately narrow: functions for handling clinical stroke trial data, mostly questionnaire scoring such as pase_calc() for PASE and mfi_calc() for MFI domain scores. It reached that state by subtraction — the 24.10.1 release moved eight general-purpose helpers out to a separate package, project.aid, and stated the change of focus in the notes. The most recent release, 25.9.1, is an eighty-character note about accommodating upcoming ggplot2 changes.
Skipper vs stRoke: editorial side-by-side
Skipper
5.0INFRA · APIS
Skipper trims a 4x memory regression out of routesrv, days after shipping h2c
◆ Current state
Zalando's HTTP router ships patch tags almost daily, and most carry a single dependency bump or a one-line auth fix. The substance in this window is v0.27.63, which stops routesrv holding an uncompressed route tree alongside the compressed buffer: retained memory in the release's own benchmark falls from 30.7 MB to 2.0 MB, undoing most of the 4x increase zone-aware routing had introduced. Around it sit narrow auth repairs, and an eskip parser change that finally accepts negative numeric arguments in predicates and filters.
◆ Where it's heading
Two threads run through the recent tags. The data path keeps getting real work - leastRequests balancing, then h2c end to end in v0.27.57, now the memory cost of zone-aware routing being paid back. The auth filters, by contrast, are only being maintained: token introspection, grant auth, and now the OIDC Referer handling are fixes rather than new capability, and several are follow-ups to each other rather than independent bugs.
◆ Prediction
Zone-aware routing looks like the source of the recent memory attention, so expect further tuning around route storage and the hash computation done on every pull, which the release's second benchmark already isolates. The OIDC cookie change is the second link in an auth chain that started with the grant-auth fix, and is likely to draw another follow-up.
stRoke
0.0INFRA · APIS
Split itself in two, keeping the stroke-trial functions and exporting the rest
◆ Current state
stRoke is now deliberately narrow: functions for handling clinical stroke trial data, mostly questionnaire scoring such as pase_calc() for PASE and mfi_calc() for MFI domain scores. It reached that state by subtraction — the 24.10.1 release moved eight general-purpose helpers out to a separate package, project.aid, and stated the change of focus in the notes. The most recent release, 25.9.1, is an eighty-character note about accommodating upcoming ggplot2 changes.
◆ Where it's heading
The package uses calendar versioning and its history is one of scope being repeatedly redrawn: ds2dd() went to REDCapCAST in 2023, then the general data and project management helpers went to project.aid in 2024. What remains is domain-specific and slow-moving, and the past eleven months produced a single compatibility release. The maintainer's visible effort has moved to the sibling packages.
◆ Prediction
Expect further questionnaire scoring functions if the maintainer's own trials need them and compatibility releases otherwise; on the pattern set in 24.10.1, more of the remaining general-purpose functions could still migrate to project.aid.
Alternatives to Skipper and stRoke
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 Skipper or stRoke.
Kinsta
Kinsta is moving MyKinsta's controls into its API, one surface per month
Verdaccio
Verdaccio's 7.0 line is subtraction — forks dropped, toolchain swapped, tags mostly empty
ToolJet
Observability lands on OpenTelemetry semconv in the LTS train
Honeycomb
Canvas agents gain memory, and onboarding moves into the editor
GitHub
Security and governance controls catch up to the Copilot build-out
See all Skipper alternatives → · See all stRoke alternatives →
Recent activity from Skipper and stRoke
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 14h agoSkipperMove OIDC flow protection from Referer to cookies
- 14h agoSkipperv0.27.63: Store routes compressed-only, decompress on demand (#4198)
- 1d agoSkipperEskip predicates and filters accept negative numbers
- 1d agoSkipperFix token introspection handling
- 1d agoSkipperFix grant auth flow
- 1d agoSkipperUpdate outdated golang.org/x dependencies
- 10mo agostRokeCompatibility update for upcoming ggplot2 changes
- 1y agostRokeScope narrowed to stroke trials; eight helpers moved to project.aid ⚡
- 2y agostRokeChunking, string extraction and padding helpers added
- 3y agostRokeFix for ds2dd() after first practical use
- 3y agostRokePASE questionnaire scoring with data-quality checks
- 3y agostRokeFirst release: color_plot() built on contrast_text()
Frequently asked questions
What is the difference between Skipper and stRoke?
They serve adjacent needs but don't currently overlap on shipped themes. Skipper is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Skipper better than stRoke?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Skipper is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Skipper?
Top Skipper alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Skipper alternatives" section above for the current picks, or visit /alternatives/skipper for the full list with editorial commentary on each.
What are the best alternatives to stRoke?
Top stRoke alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "stRoke alternatives" section above for the current picks, or visit /alternatives/stroke for the full list with editorial commentary on each.