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1. v6.6.3 [2024/08/15]

1.1 Beta Feature

• AutoTracing
  • When the TraceID is present in the protocol header, support disabling eBPF syscall_trace_id calculation (via configuration syscall_trace_id_disabled) to reduce the impact on business performance.
  • Automatically correct minor clock deviations between different machines in the distributed tracing flame graph.
• AutoTagging
  • Support using Lua Plugin to customize K8s workload abstraction rules, documentation.
• Agent
  • Support completely disabling cBPF data collection (via configuration tap_interface_regex as an empty string) to reduce memory overhead.
  • Support deepflow-agent to use a single socket to transmit all observability data, and this feature can be disabled via the multiple_sockets_to_ingester configuration item to use multiple sockets to improve transmission performance.

1.2 Stable Feature

• AutoProfiling
  • Support viewing DeepFlow eBPF On-CPU Profiling data in the Grafana Panel, Demo (opens new window).
• AutoMetrics
  • Support aligning timestamps of request and response metrics in the same session to help AIOps systems better achieve root cause localization (thanks to pegasusljn：FR (opens new window)).
• AutoTagging
  • Correctly mark the Universal Tag for loopback network card traffic on K8s Node.
• Agent
  • Reduce the number of sockets used by deepflow-agent to send data.
    • Merge the sockets used to transmit open_telemetry and open_telemetry_compressed data when integrating OpenTelemetry.
    • Merge the sockets used to transmit deepflow_stats and agent_log data for agent self-monitoring.
    • Merge the sockets used to transmit prometheus and telegraf metrics when integrating Prometheus and Telegraf.

2. v6.6.2 [2024/08/01]

2.1 Beta Feature

• AutoMetrics
  • Support aligning timestamps of request and response metrics in the same session to help AIOps systems better achieve root cause localization (thanks to pegasusljn：FR (opens new window)).

2.2 Stable Feature

• AutoTracing
  • Optimize the default values of configuration parameters for NTP clock offset (host_clock_offset_us) and network transmission delay (network_delay_us) used in network Span tracing to reduce the probability of mismatches.

3. v6.6.1 [2024/07/18]

3.1 Beta Feature

• AutoTagging
  • Correctly mark the Universal Tag for loopback network card traffic on K8s Node.

3.2 Stable Feature

• AutoTracing
  • Added URL desensitization capability for HTTP protocol, Redis protocol desensitization enabled by default.
• AutoTagging
  • Support synchronizing Volcengine resource tags, documentation.
  • Cancel synchronization of Pods in K8s Evicted state to reduce resource overhead.
• Integration
  • Optimize the mapping of fields such as schema/target in OTel Span to l7_flow_log, documentation.
• Agent
  • Support aggregating and collecting traffic from multiple member physical network cards of the Open vSwitch bond interface.

4. v6.6.0 [2024/07/04]

4.1 Backward Incompatible Change

• AutoProfiling
  • Use Dataframe return format to compress response size and improve API performance, PR (opens new window), documentation.

	#Functions	Response Size (Byte)	Download Time
Before	450,000	21.9M	6.16s
After	450,000	3.07M	0.78s

4.2 Beta Feature

• AutoTagging
  • Support synchronizing Volcengine resource tags, documentation.
• Agent
  • Support aggregating and collecting traffic from multiple member physical network cards of the Open vSwitch bond interface.