neohiro/dnscrypt-proxy-gui v1.0.4 on GitHub

DNSCrypt Proxy GUI 1.0.4

A major robustness release focused on protecting your existing network configuration.

Your DNS settings are now safe. Before any change, the GUI snapshots your current system DNS configuration and restores it exactly on deactivation or exit - manually configured servers are no longer replaced by DHCP defaults. A new Restore DNS button is always available as a safety hatch.
Crash-safe by design: if the GUI is force-killed, the proxy child process is cleaned up automatically (Windows Job Object / POSIX watchdog) instead of leaving your DNS pointed at a dead port.
Visible errors: a rotating log file now records what happens (%LOCALAPPDATA%\DNSCryptClientGUI\logs, ~/Library/Logs/DNSCryptClientGUI, ~/.cache/dnscryptclientgui/logs), and proxy start failures show their actual error output.
Honest session persistence: explicit Deactivate stays deactivated across restarts; settings persist even when the resolver list cannot be fetched offline.
Correct configs: relay mappings that reference relays which no longer exist upstream are dropped instead of producing configs dnscrypt-proxy rejects; stale-relay and parser behaviour covered by a new automated test suite.
Faster refreshes: server/relay lists use conditional downloads - unchanged lists cost almost nothing.
Better UX on modern systems: crisp text on high-DPI Windows displays, dark-theme-friendly table rows, window size/position remembered, modal relay selector, single-instance guard, cache fields validated (and correctly labelled as entries).

New CI pipeline: lint + unit tests (Python 3.11/3.12) + headless GUI smoke test on every PR/push.
Release archives now ship with SHA256SUMS.txt; Linux builds target glibc 2.35 for wider distro compatibility.

macOS builds remain unsigned - right-click → Open on first launch (or allow in Privacy & Security).
Place the official dnscrypt-proxy executable next to the GUI, or set its path under Configuration → System Paths.

Robustness overhaul: exact DNS backup/restore, crash-safety, UX & CI hardening by @neohiro in #6

Full Changelog: v1.0.3...v1.0.4