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Release Notes - Version 15.6

Written by Stefano Gridelli

Features

Server

  • Block upgrades to Beezkeeper version 20 and above unless DISABLE_NEXTGEN_UPDATES is explicitly set to false.

  • Patch CVE-2026-98432 (Linux kernel IPv4 TCP use-after-free) by updating the host OS through the Ubuntu update scripts.

Agent

Wi-Fi

  • Direct authentication reconnects are handled cleanly.

  • Scan results now include security, protocols per BSSID, channel utilization, and channel width. macOS scans also include PMF, using authorized data from the desktop app.

  • Supplicant log rotation and its Bookworm install are fixed.

  • The daemon runs background scan sweeps.

  • IEEE reason codes 2 and 3 are reported separately.

Tests, interfaces, and reliability

  • networkd agents report the live wlan0 gateway, and a global IPv6 address is preferred over link-local.

  • Wired Path Analysis on wireless agents runs in the interface namespace.

  • The fast.com speed test reports upload, latency, and client metadata.

  • The TCP decoder is bounded, and namespace routing is repaired when the host table is flushed or wired IPv4 returns.

  • dig 9.18 no longer deadlocks when the test interface has no source IP, or on IPv6.

  • fping children are reaped before the backoff sleep, and a failed fping start is reported to the dashboard.

  • Upgrades sync before the root filesystem is remounted read-only.

  • A merge race, a websocket bind failure, and a registration timeout are fixed, along with leaked resources and reused descriptors closed too early.

Windows

  • execCmdAsUser output parsing and address-list walks are hardened.

  • WLAN query allocations are freed, and disabled location services are reported.

Legacy OS upgrades

  • Kernel modules and namespace downloads are protected during an OS upgrade.

  • The legacy wlan0 supplicant is stopped during the move to networkd.

  • Listener hardening and the Bookworm 6.12.115 kernel are included.

  • A legacy-fleet upgrade bundle was prepared at 20.0.5.

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