httpuv
httpuv ships almost nothing, which is what you want from the web server under Shiny
Comparison · DevOps
promises vs Zeebe
A side-by-side editorial comparison of promises and Zeebe — release velocity, themes, recent moves, and the top alternatives to consider.
promises vs Zeebe: at a glance
What is promises?
promises drops R6 for plain environments and wires async work into OpenTelemetry
promises supplies the async primitives behind Shiny and plumber. After years of small domain and future() fixes, the last two releases changed both what a promise costs and what it can report: 1.4.0 corrected nested domain ordering and added the first OpenTelemetry integration, and 1.5.0 replaced the R6 promise class with a classed environment while stabilizing the tracing API.
What is Zeebe?
Camunda's 8.10 alpha threads business IDs through the stack while the tag feed fills with CI noise.
Zeebe's public tag stream is dominated by monorepo automation: renovate dependency bumps, backport tags and CI hardening published as `0.0.0-dryrun-*` releases. The substantive work sits in the 8.10.0-alpha4 line, where late business ID assignment landed across the engine, REST, gRPC and the Java client at once. Maintenance branches 8.7 through 8.9 continue to take security and stability backports in parallel.
promises vs Zeebe: editorial side-by-side
promises
0.0DEVOPS
promises drops R6 for plain environments and wires async work into OpenTelemetry
◆ Current state
promises supplies the async primitives behind Shiny and plumber. After years of small domain and future() fixes, the last two releases changed both what a promise costs and what it can report: 1.4.0 corrected nested domain ordering and added the first OpenTelemetry integration, and 1.5.0 replaced the R6 promise class with a classed environment while stabilizing the tracing API.
◆ Where it's heading
Two things are being fixed at once. Promise domains - the mechanism that carries context across async boundaries - have been the source of nearly every bug in this window, and they are now being used deliberately as the vehicle for tracing rather than just for error handling. Meanwhile the object itself is being made cheap enough to create in volume.
◆ Prediction
Expect the OpenTelemetry surface to lose its experimental label and pick up the same span coverage Shiny would need end to end; the deprecated ospan function names should be removed in a following release.
Zeebe
5.0DEVOPS
Camunda's 8.10 alpha threads business IDs through the stack while the tag feed fills with CI noise.
◆ Current state
Zeebe's public tag stream is dominated by monorepo automation: renovate dependency bumps, backport tags and CI hardening published as `0.0.0-dryrun-*` releases. The substantive work sits in the 8.10.0-alpha4 line, where late business ID assignment landed across the engine, REST, gRPC and the Java client at once. Maintenance branches 8.7 through 8.9 continue to take security and stability backports in parallel.
◆ Where it's heading
Camunda is building 8.10 as a correlation-identity release: business IDs propagate from job completion through the engine into secondary storage, which is the groundwork for tracing a process instance by a domain key rather than an internal one. The alpha4 line has now moved from rc1 through rc2 to a full alpha with the same feature set, so the surface is stabilising rather than expanding. Four supported branches receiving concurrent backports signals the enterprise support burden is shaping release cadence as much as new capability.
◆ Prediction
Expect 8.10.0-alpha5 or a beta that consolidates the business ID surface and starts exercising it in Operate and Tasklist queries. Whether anything beyond business IDs is targeted for 8.10 is not visible in these entries.
Alternatives to promises and Zeebe
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 promises or Zeebe.
withr
withr rebuilt defer() on base R's own on.exit(), and got much faster for it
htmltools
htmltools spends three releases walking back its own fill-layout opinions
xml2
xml2 relicensed to MIT, then moved its hot accessors from S3 into C
httr
httr's last releases are housekeeping - the package now points users at httr2
magrittr
magrittr rewrote its pipe in C, then base R shipped one and the releases stopped
See all promises alternatives → · See all Zeebe alternatives →
Recent activity from promises and Zeebe
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 18h agoZeebeWebapp client picks up TanStack router patch bumps
- 18h agoZeebeAlpha-channel twin of the same dependency bump tag
- 2d agoZeebeBackport to 8.9: release the backup store on retention change
- 2d agoZeebeSkip memory-leaking Operate history panel tests on 8.8
- 3d agoZeebeCI: block the pull_request_target trigger on 8.7
- 7d agoZeebe8.10 alpha: business IDs reach the engine, APIs and FEEL
- 9mo agopromisesOpenTelemetry spans across async work; R6 dropped for environments ⚡
- 9mo agopromisesNested promise domains fixed; then() gains a tee argument
- 1y agopromisesRealigns future object creation with the future package
- 1y agopromisesFixes stack overflow on long promise chains
- 1y agopromisesFixes domains forgotten inside nested handlers
- 3y agopromisesfuture_promise() returns early when workers are exhausted
Frequently asked questions
What is the difference between promises and Zeebe?
They serve adjacent needs but don't currently overlap on shipped themes. Zeebe 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 promises better than Zeebe?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Zeebe 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 DevOps products to evaluate alongside.
What are the best alternatives to promises?
Top promises alternatives in DevOps are ranked by recent ship velocity. Browse the "promises alternatives" section above for the current picks, or visit /alternatives/promises for the full list with editorial commentary on each.
What are the best alternatives to Zeebe?
Top Zeebe alternatives in DevOps are ranked by recent ship velocity. Browse the "Zeebe alternatives" section above for the current picks, or visit /alternatives/zeebe for the full list with editorial commentary on each.