Changelog

2026-07-13

• FlexRIC support retired: removed the flexric_compat_timestamps KPM interop flag (KPM colletStartTime now decodes strictly per RFC 5905 NTP), the FLEXRIC_COMPAT_TIMESTAMPS container env var, and the flexric-ho interop-demo xApp
• Dropped stale references to the removed skip_e2_removal_on_shutdown flag

2026-04-11

• Project restructured: FlexRIC removed, airpuls is now independent
• xApp dynamic configuration library (RicXappConfig)
• PLMN config changed from hex to decimal MCC/MNC
• ric_client_connect now accepts optional config parameter
• src/xapp/ renamed to src/sdk/
• Official xApps moved to xapps/ directory
• Docker Compose deployment: RIC + E2 emulator + xApp
• build_docker.sh script for building all images

2026-04-10

• RIC notification channel (RicNotification)
• KPM measurement validation at subscribe time
• Ping/Pong RTT measurement (0.49 ms median on TCP loopback)
• TCP_NODELAY + G_PRIORITY_HIGH latency tuning
• xApp disconnect subscription cleanup
• FlexRIC timestamp compatibility flag
• node_ref routing for xApp IPC
• SM plugin R1-R4 refinements

2026-04-09

• TCP transport for xApp IPC
• Release Dockerfile
• E2E test harness with FlexRIC emulator
• RIC Control round-trip (M4.6.a)
• Reactive capabilities changed (M4.6.b)
• KPM snapshot convenience (M4.6.c)

2026-04-07–08

• All 13 E2AP procedures implemented (spec-complete)
• Security audit: 4 HIGH findings fixed
• libFuzzer harness
• Criticality framework