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AetherSDR 26.11.1

Linux-native SmartSDR client for FlexRadio (FLEX-6000/8600) - Qt6 + C++20

filecart Windows Updated Nov 03, 2026
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About AetherSDR

A Linux-native client for FlexRadio Systems transceivers.

AetherSDR brings FlexRadio operation to Linux without Wine or virtual machines. Built from the
ground up with Qt6 and C++20, it speaks the SmartSDR protocol natively and aims to replicate the
full SmartSDR experience.

License: GPL-3.0
Release info Update on Nov 01, 2026
Release notes 44 merged changes from 11 human contributors. AetherSDR now installs its own updates: the Updates window downloads the newest release and swaps it in as AetherSDR exits, on Windows, on macOS and on Linux from an install that AetherSDR --install or Install for updates makes, and every release carries the signed tarballs the update manifest names. Remote Access signs a radio in to a tailnet with a QR code and reaches FLEX-6000 radios as a legacy waveform, and the Waveforms window edits a SmartSDR 4.3 container's environment and shows the radio's free storage, memory and CPU. AetherLab drives a RigExpert Stick Pro as an experimental vector network analyzer. Eight more windows move to the canon, the TCI server speaks protocol 2.1 for sample types, squelch and split, and a lapsed SmartSDR+ subscription keeps the features released before it expired.

In-app updates
• Install update on Windows (#6777). RFC #5304 Phase 3. The Updates window's primary button becomes Install update, with an inline progress bar and Cancel, then Restart to update; an update that is ready also installs when AetherSDR quits, and the title-bar badge reads RESTART TO UPDATE until it does. On the next launch the status bar says for 10 seconds whether it updated or rolled back, and a rolled-back release is never downloaded again. Skip this version discards a downloaded update. Nothing is handed over while radio firmware is being written. Get AetherSDR stays wherever an in-place update is not possible: Store installs, running as administrator, a folder the user cannot write to, or no AetherSDRUpdater.exe beside the app. The first in-place update runs from this release to the next one, because earlier releases predate the helper's self-test.
• Install update on macOS (#6927, #6930). RFC #5304 Phase 4. A Mac running AetherSDR from a writable folder gets Install update: the new bundle is checked with codesign against the running app's Developer ID team, swapped in as AetherSDR exits, and the previous…
Related tags amateur-radio cpp flex-6000 flex-8600 flexradio
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