Scalingo
Scalingo is back to routine runtime updates after its October router incident.
Comparison · DevOps
QGroundControl vs Stirling-PDF
A side-by-side editorial comparison of QGroundControl and Stirling-PDF — release velocity, themes, recent moves, and the top alternatives to consider.
QGroundControl vs Stirling-PDF: at a glance
What is QGroundControl?
QGroundControl's v5.1.5 patch restores mission commands lost to a translation bug.
QGroundControl v5.1 went stable on August 20 after two release candidates, with a corrected HUD pitch direction as the headline behavior change. Patches followed: v5.1.4 with nineteen fixes on August 30, and v5.1.5 on October 1, which restores mission commands lost to broken enum translations, fixes ArduPilot takeoff when already armed, and repairs log downloads and camera controls. A v5.2 development base was tagged on September 19.
What is Stirling-PDF?
Stirling PDF's 3.x line ships bulk processing, org-wide signing and fortnightly feature releases
Stirling PDF 3.0 in late September added the PDF Processor for running tools across folders, FTP or S3 sources, optional AI classification and extraction, free OAuth SSO and a free allowance of 1,000 automated PDFs a month. Releases since have arrived about every two weeks: 3.1.0 made group signing (Stirling Sign) default for new users and trialled an embedded Office converter, 3.2.0 replaced the multi-tool with a Page Editor and let password-protected PDFs be used without removing the password, and 3.2.1 and 3.2.2 added viewer and annotation features.
QGroundControl vs Stirling-PDF: editorial side-by-side
QGroundControl
0.0DEVOPS
QGroundControl's v5.1.5 patch restores mission commands lost to a translation bug.
◆ Current state
QGroundControl v5.1 went stable on August 20 after two release candidates, with a corrected HUD pitch direction as the headline behavior change. Patches followed: v5.1.4 with nineteen fixes on August 30, and v5.1.5 on October 1, which restores mission commands lost to broken enum translations, fixes ArduPilot takeoff when already armed, and repairs log downloads and camera controls. A v5.2 development base was tagged on September 19.
◆ Where it's heading
The v5.1 line is in repair mode with fixes on a monthly rhythm, while v5.2 work has opened in daily builds. No v5.2 features are described in the feed yet.
◆ Prediction
Another v5.1 patch is likely before any v5.2 release candidate; the v5.2 schedule is unclear.
Stirling-PDF
5.0DEVOPS
Stirling PDF's 3.x line ships bulk processing, org-wide signing and fortnightly feature releases
◆ Current state
Stirling PDF 3.0 in late September added the PDF Processor for running tools across folders, FTP or S3 sources, optional AI classification and extraction, free OAuth SSO and a free allowance of 1,000 automated PDFs a month. Releases since have arrived about every two weeks: 3.1.0 made group signing (Stirling Sign) default for new users and trialled an embedded Office converter, 3.2.0 replaced the multi-tool with a Page Editor and let password-protected PDFs be used without removing the password, and 3.2.1 and 3.2.2 added viewer and annotation features.
◆ Where it's heading
The product is moving from a self-hosted toolbox to an automation and workflow platform with metered hosted services attached. Feature releases come quickly, with visible regressions fixed in the next point release.
◆ Prediction
Expect Stirling Office Convert to move toward default and native desktop, as the 3.1.0 notes say is planned, plus continued Processor work.
Alternatives to QGroundControl and Stirling-PDF
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 QGroundControl or Stirling-PDF.
Mapnik
Mapnik 4.3.2 is a performance release from one contributor, with line dash fixes.
Eclipse OpenJ9
OpenJ9 0.63 patches CVEs and hardens JITServer against malformed messages.
OpenWrt
OpenWrt's releases are still set by security fixes, now mostly on the 25.12 branch.
OSRM
OSRM follows plaza routing with driving-side detection and turn costs against traffic.
Meta Box
Meta Box builds out custom models: a Builder UI in September, a Custom Model field in October.
See all QGroundControl alternatives → · See all Stirling-PDF alternatives →
Recent activity from QGroundControl and Stirling-PDF
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9d agoStirling-PDF3.2.2 new annotations and other minor changes and improvements
- 11d agoStirling-PDF3.2.1 Viewer improvements and bug fixes
- 17d agoStirling-PDF3.2.0 New Multi-tool, better passworded PDFs and lots of improvements
- 27d agoStirling-PDF3.1.0 Stirling Sign, signature improvements, Stirling Office Convert (beta) and text editor upgrades
- 1mo agoStirling-PDF3.0.2 bug fixes and dependency updates
- 1mo agoQGroundControlv5.1.5: lost mission commands restored, ArduPilot takeoff fix
- 1mo agoStirling-PDF3.0.1 hotfix for windows desktop bugs
- 1mo agoQGroundControlv5.2 development base tagged
- 2mo agoQGroundControlv5.1.4 patch: 19 fixes, PX4 v1.17 gripper detection
- 2mo agoQGroundControlv5.1 goes stable; HUD pitch indicator direction corrected
- 2mo agoQGroundControlv5.1 RC2: GPS reassembly, airspeed, and FTP fixes
- 3mo agoQGroundControlv5.1 first release candidate
Frequently asked questions
What is the difference between QGroundControl and Stirling-PDF?
They serve adjacent needs but don't currently overlap on shipped themes. Stirling-PDF 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 QGroundControl better than Stirling-PDF?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Stirling-PDF 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 QGroundControl?
Top QGroundControl alternatives in DevOps are ranked by recent ship velocity. Browse the "QGroundControl alternatives" section above for the current picks, or visit /alternatives/qgroundcontrol for the full list with editorial commentary on each.
What are the best alternatives to Stirling-PDF?
Top Stirling-PDF alternatives in DevOps are ranked by recent ship velocity. Browse the "Stirling-PDF alternatives" section above for the current picks, or visit /alternatives/stirling-pdf for the full list with editorial commentary on each.