What alibaba/loongcollector shipped
Written by FoxPlug from public releases; not affiliated with Com. An automatic summary of the public release, pull request and commit data of github.com/alibaba/loongcollector. Com did not write it and does not use or endorse FoxPlug. Every line links to the public change it describes.
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Week of September 14, 2026
What shipped
- v3.4.1 released with enhancements to LLM observability (AgentSight), eBPF CPU Profiling, native/Go hybrid pipelines, and self-monitoring feedback loop. Release
- v3.3.5 released introducing AgentSight for LLM observability, Windows ETW collection, restored Linux arm64 artifacts, and enhanced multi-line
whole_fileprocessing. Release - v3.2.6 released with Host Monitor and one-time collection improvements, native Kafka/Doris Flusher support, and compatibility with Docker v29+ and containerd v2.0+ (container image issue noted). Release
- Fixed incomplete config scan diff that caused pipeline deletion when directory scanning failed in versions 3.3.9 and 3.3.11. Pull request #2703
- Fixed checkpoint key collision handling to preserve active file checkpoints during dump, preventing stale deleted readers from overwriting active ones. Pull request #2646
- Fixed FlusherSLS to skip sending empty package lists when batch groups have zero content or all compression fails. Pull request #2685
- Fixed profile detection using safe EndWith suffix matching for logstores ending with
shennong_metricsto prevent SIGSEGV on empty categories. Pull request #2706 - Updated VictoriaMetrics dependency to v1.83.5-ilogtail.2 for nil-safe String methods in graphite templates. Pull request #2702
- Added E2E test gate for inode reuse with config reload to prevent regressions in file rotation scenarios. Pull request #2707
Why it matters
v3.4.1 ships multiple stability improvements and fixes critical bugs in checkpoint handling, config scanning, and profile detection that affected production deployments. The LLM observability expansion and CPU profiling enhancements extend collection capabilities for modern application observability use cases.
Changelog entry
- v3.4.1: Enhanced LLM observability (AgentSight), eBPF CPU Profiling, native/Go hybrid pipelines, self-monitoring feedback loop; fixed file collection, Checkpoint, Kubernetes, and security issues Release
- v3.3.5: Introduced AgentSight (LLM observability via eBPF), Windows ETW collection, restored Linux arm64 artifacts, enhanced multi-line
whole_fileand K8s entity support Release - v3.2.6: Improved Host Monitor and one-time collection, added native Kafka/Doris Flusher, compatible with Docker v29+ and containerd v2.0+ Release
- Fixed: Config scan completion check to prevent running pipelines from being deleted on directory listing failures Pull request #2703
- Fixed: Checkpoint dump now preserves active file checkpoints instead of allowing stale readers to overwrite them on key collision Pull request #2646
- Fixed: FlusherSLS empty package list transmission when batch groups have no content or all compression fails Pull request #2685
- Fixed: Profile detection using safe suffix matching to prevent crashes on empty logstore categories Pull request #2706
- Updated: VictoriaMetrics dependency for nil-safe graphite template String methods Pull request #2702
LoongCollector v3.4.1 is out. Checkpoint collision fix, safe config scanning, and AgentSight enhancements improve stability and LLM observability.
LoongCollector v3.4.1 released with critical production fixes: checkpoint key collision protection, incomplete config scan handling, and LLM observability (AgentSight) enhancements. Also includes eBPF CPU profiling and native/Go hybrid pipelines. Covers 48 commits of stability and capability improvements.