Stirling-PDF
Stirling PDF's 3.x line ships bulk processing, org-wide signing and fortnightly feature releases
Comparison · DevOps
Apollo Config vs WildFly
A side-by-side editorial comparison of Apollo Config and WildFly — release velocity, themes, recent moves, and the top alternatives to consider.
Apollo Config vs WildFly: at a glance
What is Apollo Config?
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.
What is WildFly?
WildFly 42 brings virtual threads to Jakarta Concurrency.
WildFly is a Jakarta EE application server on a regular train of Beta, Final and patch releases. WildFly 42.0.0.Final (October 22) supports virtual threads in the Jakarta Concurrency 3.1 implementation, promotes idle time-based eviction for distributable sessions, SFSBs and timers to default stability, and adds automatic meter management for resources added at runtime. 41.0.1 in August was a security patch closing three IIOP CVEs.
Apollo Config vs WildFly: editorial side-by-side
Apollo Config
2.5DEVOPS
Apollo 3.0 moves to Java 17 and pitches configuration management at AI agents.
◆ Current state
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.
◆ Where it's heading
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.
◆ Prediction
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.
WildFly
5.0DEVOPS
WildFly 42 brings virtual threads to Jakarta Concurrency.
◆ Current state
WildFly is a Jakarta EE application server on a regular train of Beta, Final and patch releases. WildFly 42.0.0.Final (October 22) supports virtual threads in the Jakarta Concurrency 3.1 implementation, promotes idle time-based eviction for distributable sessions, SFSBs and timers to default stability, and adds automatic meter management for resources added at runtime. 41.0.1 in August was a security patch closing three IIOP CVEs.
◆ Where it's heading
WildFly moves features through stability levels release by release; 42 promotes the eviction configuration that first arrived in 39. The bug list also shows continuing cleanup of XML parsing issues (CWE-611) and clustering edge cases.
◆ Prediction
Expect 42.0.1.Final next, consolidating fixes and component upgrades as 41.0.1 did.
Alternatives to Apollo Config and WildFly
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 WildFly.
OpenTofu
OpenTofu keeps patching the 1.12 line after opening 1.13 with Symbol Libraries
Argo CD
Argo CD's 3.6 candidates have narrowed to cherry-picked fixes
Betaflight
Betaflight grew a real autopilot: waypoint missions, geofence RTH and MAVLink ground control
Barman
Barman 3.20.1 closes a CVE that let a writable catalog delete unrelated snapshots.
Libreswan
Libreswan patches four CVEs on two lines, two of them credited to Claude and Ada Logics.
See all Apollo Config alternatives → · See all WildFly alternatives →
Recent activity from Apollo Config and WildFly
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 10d agoWildFlyWildFly 42: virtual threads for Jakarta Concurrency
- 24d agoWildFlyWildFly 42 Beta1: virtual threads and session eviction
- 1mo agoApollo ConfigApollo 3.0.0 Release
- 2mo agoWildFlyWildFly 41.0.1 closes three IIOP CVEs and a Mojarra advisory
- 3mo agoWildFlyWildFly 41 promotes OIDC scope and request-object support
- 3mo agoApollo ConfigAccessKey app ID validation during client authentication
- 4mo agoWildFlyWildFly 41 Beta adds transactions during graceful shutdown
- 4mo agoWildFlyWildFly 40.0.1 moves container images to JDK 25, drops JDK 17
- 7mo agoApollo ConfigSuper admin included in unified permission checks
- 8mo agoApollo ConfigIncremental config sync, app-level export and import
- 1y agoApollo ConfigGlobal key and value search, AccessKey observer mode, namespace limits
- 2y agoApollo ConfigWhole server system starts in a single process without MySQL
Frequently asked questions
What is the difference between Apollo Config and WildFly?
They serve adjacent needs but don't currently overlap on shipped themes. WildFly 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.
Is Apollo Config better than WildFly?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. WildFly 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.
What are the best alternatives to Apollo Config?
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.
What are the best alternatives to WildFly?
Top WildFly alternatives in DevOps are ranked by recent ship velocity. Browse the "WildFly alternatives" section above for the current picks, or visit /alternatives/wildfly for the full list with editorial commentary on each.