Issues

• Regression: upsdrvctl shutdown skips UPSes with sdorder > 0

  bugimpacts-release-2.8.3impacts-release-2.8.4impacts-release-2.8.5Shutdowns and overrides and battery level triggers
  networkupstools/nut#3793 · Filter by author billr73 opened on Oct 21, 2026 · 2.8.6

• usbhid-ups/cps-hid: output.voltage masked to 8 bits on PowerWalker VI 2200 RLE (0764:0601) - LogMax -1 reinterpreted as 255 for 16-bit ReportID 0x12

  CyberPower (CPS)impacts-release-2.8.0Incorrect or missing readingsSynologyUSB-HID encoding/LogMin/LogMax/Exponent
  networkupstools/nut#3789 · Filter by author GrizzlyCH opened on Oct 20, 2026 · 2.8.5
  2

• [HCL] <Eaton> <3P Ellipse / 3P700UD> <usbhid-ups>

  networkupstools/nut#3785 · Filter by author ihKNJS9IH8 opened on Oct 19, 2026

• configure: --with-usb=auto does not fall back to libusb-0.1 when libusb-1.0 is too old

  CIenhancementportability
  networkupstools/nut#3781 · Filter by author nmbro opened on Oct 18, 2026 · 2.8.6

• Ugreen US2000 (2b89:ffff): telemetry is firmware-dead, real values only in a pushed HID report

  networkupstools/nut#3779 · Filter by author reklrekl opened on Oct 18, 2026

• usbhid-ups (Belkin/Liebert HID): Liebert PSA 10af:0001 battery.runtime truncated – RunTimeToEmpty inherits LogMax=100 for 16-bit field

  impacts-release-2.8.1impacts-release-2.8.5Incorrect or missing readingsUSB-HID encoding/LogMin/LogMax/ExponentVertiv/Liebert
  networkupstools/nut#3777 · Filter by author m2teusz opened on Oct 18, 2026 · 2.8.7
  2

• Ragtech Driver: can't communicate with Easy Way 1500 GT

  impacts-release-2.8.5Incorrect or missing readingsRagtechUSB
  networkupstools/nut#3755 · Filter by author pedroaugustosmribeiro opened on Oct 13, 2026 · 2.8.7
  3

• Documentation proposal: task-oriented navigation and clearer setup journeys

  networkupstools/nut#3750 · Filter by author user01010111 opened on Oct 11, 2026

• Clarify remaining TLS, discovery and driver documentation contracts

  networkupstools/nut#3747 · Filter by author user01010111 opened on Oct 11, 2026

• Consider skipping the CodeQL matrix for documentation-only pull requests

  networkupstools/nut#3746 · Filter by author user01010111 opened on Oct 11, 2026

• upsmon causes continuous systemd-logind CPU/syscall activity while idle

  bugDebian Linux ecosystemimpacts-release-2.8.5service/daemon start/stopsystemdupsmon
  networkupstools/nut#3736 · Filter by author therealsummoner opened on Oct 7, 2026 · 2.8.6
  1

• huawei-ups2000: UPS serial comm lockup triggered by 0x2B ReadDevID=0x01 + ObjectID=0x87 (reproducible "Serial port becomes unresponsive" case)

  AIdocumentation-protocolHuaweimodbus
  networkupstools/nut#3735 · Filter by author csc06 opened on Oct 7, 2026
  3

• RFE: nutauth.conf files should support hashed passwords

  enhancementHardening
  networkupstools/nut#3733 · Filter by author jimklimov opened on Oct 5, 2026 · 2.8.6

• NUT-monitor favorites entry saves base64 encoded password with newline appended

  bugHardeningpython
  networkupstools/nut#3732 · Filter by author TrevorPH opened on Oct 5, 2026 · 2.8.6
  5

• nut-server cannot bind to specific IP address configured in LISTEN statement

  Connection stability issuesdocumentationnut-driver-enumerator (NDE)questionservice/daemon start/stopsystemdupsmon
  networkupstools/nut#3731 · Filter by author vuntz opened on Oct 4, 2026 · 2.8.7
  2

• CI: New hosting needed from 2027

  CIdocumentationportability
  networkupstools/nut#3725 · Filter by author jimklimov opened on Oct 1, 2026 · 2.8.7
  2

• [Feature] Outage history

  Dockerenhancementpythonupsmon
  networkupstools/nut#3724 · Filter by author lagraviereScience opened on Sep 30, 2026 · 2.8.7
  2

• upsmon/upsclient send PASSWORD unquoted, so a password containing # can never log in (upsd cuts the word at #)

  C-strenhancementHardeningIncorrect or missing readingsNUT protocols
  networkupstools/nut#3721 · Filter by author Tycorc opened on Sep 28, 2026 · 2.8.6
  3

• [HCL] Eaton Eaton 5P supported by snmp-ups

  DDLEatonHCLimpacts-release-2.8.5Incorrect or missing readingsSNMP
  networkupstools/nut#3718 · Filter by author JaCh0o opened on Sep 27, 2026 · NUT 2.9
  

• usbhid-ups winhid backend reports wrong values for boolean usages (BatteryPresent, Charging/Discharging) on APC Back-UPS XS 1500M

  APCIncorrect or missing readingsUSBWindows
  networkupstools/nut#3717 · Filter by author fatcat opened on Sep 26, 2026 · 2.8.6
  5

• upsmon leaks TCP sockets after macOS sleep/DarkWake reconnects (2.8.5)

  Connection stability issuesimpacts-release-2.8.5upsmon
  networkupstools/nut#3715 · Filter by author macdawgnut opened on Sep 26, 2026 · 2.8.6
  5

• RFE: redesign nutdrv_qx subdriver matching to keep track of POSSIBLY_SUPPORTED driver-device pairs

  enhancementIncorrect or missing readingsneed testingQx protocol driverrefactor/fightwarnVolunteers welcome
  networkupstools/nut#3704 · Filter by author jimklimov opened on Sep 23, 2026 · NUT 2.9

• Legrand Keor DK 3k (0665:5161) — HID Power Device not matched by any subdriver, and ups.status undecodable from the hid2nut table

  Incorrect or missing readingsLegrandUSB
  networkupstools/nut#3702 · Filter by author LucVanw opened on Sep 22, 2026 · 2.8.6

• upsd: round-robin connection handling, modernize with parallel redesign?

  Connection stability issuesrefactor/fightwarn
  networkupstools/nut#3700 · Filter by author jimklimov opened on Sep 21, 2026 · 2.8.7
  1

• richcomm-svc subdriver fails on older "UPS USB MON V1.4" firmware revision (0925:1234) — baud-config report rejected with I/O Error

  AIConnection stability issuesQx protocol driverUSB
  networkupstools/nut#3667 · Filter by author DrSigma4164 opened on Sep 18, 2026 · 2.8.6
  1