Specialize repeater ACL session state, compact recent and flood records, stream Merkle proofs, and release cold OTA buffers safely. Preserve saved formats, stack sizes, table capacities, and OTA source limits. Account for lazy buffers when active and add compatibility, ARM alignment, allocation failure, and queued-response tests.
Validated six representative board/role builds, 1736 native test cases, sanitizer fixtures, and strict documentation. Document the preexisting Wio-E5 Mini flash overflow separately.
Keep Full sensors, UART2, adaptive OTA storage and the 8 KiB loop stack. Arbitrate shared SPI and OTA workspace ownership, move network waits into a worker, and use bounded queued TCP operations. Add reproducible test configs, RAM checks and regression coverage. Validated the Full build, UF2 layout and 29 sanitizer runtime scenarios.
Starting or restarting MQTT during browser OTA could remove the active AP by forcing STA mode. Defer shared MQTT startup and recovery, and Companion WiFi startup, pending credential reloads and saved-SSID retries, until the live SDK AP releases the driver. Preserve the setup owner's deliberate credential handoff and cooperative stop acknowledgement.
Validated 91 source host tests, including 20 new AP ownership cases and nine reverted controls under ASan/UBSan. Hardware and firmware build qualification remain separate; the Arduino mode snapshot is not atomic.
Protect standard access points from the shared ESP-IDF LR flag, defer incompatible raw ESP-NOW starts, and select RAM storage before LR writes. Track successful LR owners so setup and OTA access points reject a conflicting running transport before changing WiFi.
Run actual production policies, transport lifecycle methods, and WebConfig teardown branches against a shared-LR SDK model with runtime negative controls; include the regression in unit CI.
Keep the deployed SD target and layout, select qualified internal delta storage when no card is usable, and retain exact SD bootloader-update gates. Add storage, capability, transfer, recipe, and release-selection regression coverage.
Also preserve mandatory runtime packet logging in canonical XIAO images when verbose build debugging is disabled, fixing the four stopped release-matrix qualification failures.
Report the upload address and required network, honor AP switches on an existing uploader, and keep delayed WebConfig cleanup from disabling OTA WiFi. Preserve actionable startup errors and account for OTA in wireless state controls.
Exercise the production OTA lifecycle and stock website console, including power-saving idle sessions, in host regression tests.
DHCP can fill all DNS_MAX_SERVERS (3) slots, but only two were saved and restored, so a third server from one medium survived a switch to the other. link.dns now drops trailing empty slots to keep remote replies under 160 bytes.
Shows lwIP's live global DNS server list next to the DNS each medium's DHCP lease installed, so a node that is linked but failing to resolve can be diagnosed remotely.
Backport the pinned Arduino 2.0.17 HWCDC suffix and interrupt handling into a build-local source copy. Preserve unsent bytes, serialize ISR and producer rearm, and include FIFO, suffix and active writers in transport cleanup proofs without changing the loop stack allocation.
Validate zero and short writes, producer races, quarantine and stale cleanup with sanitizer-backed native tests and negative controls. Keep other frameworks and USB modes on their existing drivers; update the watchdog file mock for the existing buffer API.
Heltec V4 timing measured 2.19 seconds for recovery checks, temporary-file cleanup, open and buffer configuration combined in one lazy-save pass. Defer those startup operations across guarded companion loops while explicit durability callers still initialize synchronously.
Track ownership only after attempting to create the temporary file, preserve unowned stale files on early cancellation, and reject premature writes or commits. Cover startup faults, interruption, mutation, cache pressure and synchronous-construction negative controls with native sanitizer tests.
mikecarper
agessaman