Undertow
Undertow 2.4.0 clears three CVEs and finally lands long-open HTTP/2 and timeout requests
A side-by-side editorial comparison of Pelican and Z-Wave JS — release velocity, themes, recent moves, and the top alternatives to consider.
Pelican now ships roughly once a year, and 4.12 is theme housekeeping
Pelican is a mature Python static site generator in low-cadence maintenance: 4.12.0 in April 2026 followed 4.11.0 by fifteen months, which itself followed 4.10.0 by sixteen. Nearly all recent work lands in the bundled notmyidea and Simple themes, in summary generation, and in the file-watching and logging plumbing. The contributor pattern is telling — a handful of names carry most merged PRs, and the changelogs read as accumulated small fixes rather than planned feature arcs.
Z-Wave driver where the hard problems are now smart locks and device quirks.
Z-Wave JS is the driver layer underneath most open-source Z-Wave integrations, and its releases follow a tight weekly-to-fortnightly rhythm mixing three things: protocol correctness, device config files, and developer surface. The current focus is clearly credential handling on smart locks — several consecutive releases fix stale cached credentials, bulk user deletion timeouts, and locks misreporting progress during credential learning. Alongside that, inclusion reliability got direct attention, with ongoing interviews now paused during inclusion and security bootstrapping.
Pelican is a mature Python static site generator in low-cadence maintenance: 4.12.0 in April 2026 followed 4.11.0 by fifteen months, which itself followed 4.10.0 by sixteen. Nearly all recent work lands in the bundled notmyidea and Simple themes, in summary generation, and in the file-watching and logging plumbing. The contributor pattern is telling — a handful of names carry most merged PRs, and the changelogs read as accumulated small fixes rather than planned feature arcs.
The project is stable rather than growing: the last genuinely structural changes were switching the build tool to PDM and moving file watching to watchfiles back in 4.9.0, and nothing since has altered how Pelican works. Recent releases invest in making the bundled themes usable as inheritance bases — more template blocks, CSS_FILE support, dark mode — which pushes customization toward theme authors instead of core. Expect continuity, not reinvention.
The entries show no roadmap signal beyond incremental theme and Python-version support, so the next release most likely follows the same pattern: another year-scale gap, more Simple-theme inheritance hooks, and test-matrix updates for a newer Python.
Z-Wave JS is the driver layer underneath most open-source Z-Wave integrations, and its releases follow a tight weekly-to-fortnightly rhythm mixing three things: protocol correctness, device config files, and developer surface. The current focus is clearly credential handling on smart locks — several consecutive releases fix stale cached credentials, bulk user deletion timeouts, and locks misreporting progress during credential learning. Alongside that, inclusion reliability got direct attention, with ongoing interviews now paused during inclusion and security bootstrapping.
The protocol work is moving from getting commands through to getting them right under adversarial timing — S2 delivery verification, split multi-frame reports, and optimistic value updates now distinguishing actuator from non-actuator command classes. The other steady stream is the device database, which absorbs manufacturer inconsistencies so integrations above it do not have to.
User Code and User Credential handling should keep generating fixes, since each release surfaces another lock firmware that deviates from the spec in a new way.
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 Pelican or Z-Wave JS.
Undertow 2.4.0 clears three CVEs and finally lands long-open HTTP/2 and timeout requests
Betaflight grew a real autopilot: waypoint missions, geofence RTH and MAVLink ground control
OceanBase is rebuilding itself as a RAG backend without giving up the HTAP story
QGroundControl rebuilt its flight UI around touch screens, then went quiet for ten months
WildFly's quarterly train is really a stability ladder, and OIDC keeps climbing it
Jakarta REST implementation in pure maintenance across two parallel branches.
See all Pelican alternatives → · See all Z-Wave JS alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Z-Wave JS 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.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Z-Wave JS 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.
Top Pelican alternatives in DevOps are ranked by recent ship velocity. Browse the "Pelican alternatives" section above for the current picks, or visit /alternatives/pelican for the full list with editorial commentary on each.
Top Z-Wave JS alternatives in DevOps are ranked by recent ship velocity. Browse the "Z-Wave JS alternatives" section above for the current picks, or visit /alternatives/zwave-js for the full list with editorial commentary on each.