Stirling-PDF
Stirling PDF's 3.x line ships bulk processing, org-wide signing and fortnightly feature releases
A side-by-side editorial comparison of Apollo Config and Froxlor — release velocity, themes, recent moves, and the top alternatives to consider.
Apollo 3.0 moves to Java 17 and pitches configuration management at AI agents.
Apollo ships a feature release roughly once a year with small patches between them. 3.0.0 in October moved the server to Java 17 and Spring Boot 4.1 and began what the project calls Agent First configuration management: structured APIs, user-delegated access and machine-readable capabilities for agents. The 2.5 line before it added incremental config sync and app-level export and import, followed by two permission and authentication patches.
Froxlor's bugfix releases now describe their changes, and most are security fixes.
Froxlor is an open-source server administration panel. After two bugfix tags with nothing but a compare link, 2.3.14 to 2.3.16 carry real notes: 2.3.14 has four security fixes (theme allowlisting, control characters in FTP members, permission checks on MySQL server and cron reads, admin-scoped mail templates), 2.3.15 fixes database, nginx and SSH-key issues, and 2.3.16 adds PHP 8.5 compatibility and honours a hidden-traffic setting in the API.
Apollo ships a feature release roughly once a year with small patches between them. 3.0.0 in October moved the server to Java 17 and Spring Boot 4.1 and began what the project calls Agent First configuration management: structured APIs, user-delegated access and machine-readable capabilities for agents. The 2.5 line before it added incremental config sync and app-level export and import, followed by two permission and authentication patches.
After two years of lowering operating cost (single-process startup, incremental sync, export and import), 3.0 is the first release aimed at a new kind of client: software agents acting on a user's behalf. The platform bump to Java 17 came with it.
Expect 3.0.x patches on the new platform baseline; the entries do not yet show how the agent-facing APIs are used in practice.
Froxlor is an open-source server administration panel. After two bugfix tags with nothing but a compare link, 2.3.14 to 2.3.16 carry real notes: 2.3.14 has four security fixes (theme allowlisting, control characters in FTP members, permission checks on MySQL server and cron reads, admin-scoped mail templates), 2.3.15 fixes database, nginx and SSH-key issues, and 2.3.16 adds PHP 8.5 compatibility and honours a hidden-traffic setting in the API.
Security fixes now arrive in the regular bugfix releases rather than only in separate security releases, and the notes have returned. The issues are mostly authorization scoping inside the admin and customer API, the same class as the 2.3.11 2FA bypass. PHP 8.5 support keeps the panel installable on current distributions.
Expect further 2.3.x releases with authorization fixes in the API, given the four in 2.3.14 and another in 2.3.16.
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 Apollo Config or Froxlor.
Stirling PDF's 3.x line ships bulk processing, org-wide signing and fortnightly feature releases
OpenTofu keeps patching the 1.12 line after opening 1.13 with Symbol Libraries
Argo CD's 3.6 candidates have narrowed to cherry-picked fixes
Betaflight grew a real autopilot: waypoint missions, geofence RTH and MAVLink ground control
Barman 3.20.1 closes a CVE that let a writable catalog delete unrelated snapshots.
WildFly 42 brings virtual threads to Jakarta Concurrency.
See all Apollo Config alternatives → · See all Froxlor alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Froxlor is currently shipping more aggressively (velocity 5.0 vs 2.5), 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. Froxlor is currently shipping more aggressively (velocity 5.0 vs 2.5), 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 Apollo Config alternatives in DevOps are ranked by recent ship velocity. Browse the "Apollo Config alternatives" section above for the current picks, or visit /alternatives/apollo-config for the full list with editorial commentary on each.
Top Froxlor alternatives in DevOps are ranked by recent ship velocity. Browse the "Froxlor alternatives" section above for the current picks, or visit /alternatives/froxlor for the full list with editorial commentary on each.