prestonbrown/helixscreen v0.99.43

on GitHub

Niimbot B-series support (B1 / B18 / B3S) — added to the brand table with the shared 384-dot printhead profile. Previously these models were unsupported.

New label sizes — 30×20, 30×40, 40×40, 25×30, 14×40, 14×60. Fixes "feeds but prints blank" on B1 with 30×20 stock, where the printer previously defaulted to a 50×30 template and advanced 50 mm of material across 2.5 of the user's actual labels per print.

Dual-mode Bluetooth label printers no longer fail to connect — dual-mode Niimbots (D110 and siblings) enumerate as two BlueZ devices with the same name: a BR/EDR half exposing only SPP/PnP and a BLE half carrying the vendor GATT service. Discovery dedup was MAC-based, so both entries appeared in the picker and selecting the BR/EDR half always failed with 'br-connection-profile-unavailable'. Dedup now resolves same-name conflicts via the brand table and keeps the vendor's preferred transport. Users whose saved pairing points at the wrong-transport sibling are auto-migrated on the next discovery (saved MAC cleared) so a single re-pair puts them on the right half.

"(Saved)" indicator showing on every Bluetooth device — the saved-pair tag was flagging any device with a non-empty MAC (i.e., all of them); it now compares against the actual saved bt_address.

AD5M: crash reporter recursion on uncaught exception — the exception record path is now async-signal-safe. When a C++ exception escaped, the crash writer recursed and the process aborted with "std::terminate without active exception" before the report could be written. Reports from AD5M devices will now arrive intact.

Thread exhaustion crash on small devices (#837) — raw detached std::thread(...) sites are now routed through managed pools (HttpExecutor::fast/slow, BusThread) or wrapped in try/catch so pthread_create EAGAIN surfaces as a toast instead of terminating. Most visible on AD5M/CC1 under thread pressure.

WiFi panel use-after-free on scroll (#850) — the LVGL input device is now reset before clearing the network list, closing the window where the scroll indev dereferenced a freed scrollable mid-rebuild.

Overlay dismiss use-after-free (#840) — widget deletion in destroy_overlay_ui is now deferred, removing the window where a pending async callback could fire on a freed overlay.

Thermistor rediscover UAF — paired SubjectLifetime as a member next to ObserverGuard so per-sensor observers expire cleanly when dynamic temperature subjects are destroyed on reconnect.

Observer release() → reset() in widget LV_EVENT_DELETE callbacks — closes a zombie-observer class that caused rare render-state corruption behind the #579 report cluster.

Config: telemetry_enabled source-of-truth on v13→v14 migration — resolves cases where the in-app toggle state could disagree with the stored value.

Crash-handler diagnostics (#851) — queue_prev ring expanded to 4 slots for richer last-actions context; silenced an empty-name image-lookup spam path during crash capture.

Toast contrast — toast cards now sit on elevated_bg with a theme border, reading cleanly against busy backgrounds on all themes.

Printer log noise — per-tick hot-path logs only emit on an actual state change, significantly lowering journal volume on idle devices.