Allow Auto, SSD1306 or SH1106 through display.controller on display-enabled RAK4631 and RAK3401 roles. Persist the choice before restart without changing the active screen policy, and let saved Auto override legacy build defaults.
Share checked settings I/O and the existing atomic writer to keep Full Companion within its flash boundary while retaining features and existing record formats. Cover save failures, backup recovery, startup selection and ambiguous OLED replies.
Validation: 35 targeted host tests passed. RAK4631 Full Companion and RAK3401 unified LoRa OTA repeater build and package checks passed with release-length version strings.
Bring in Wio Tracker L2 Pro, RAK3401/TrackerV2 RS232 recipes and explicit FEM-on defaults. Keep qualified runtime FEM ownership and GPS semantics; retain old V4 target aliases and Bash build entry points. Pin the upstream RadioLib 7.8.1 release exactly instead of an open-ended dependency range.
Use a 960-byte constant-time Ed25519 base table, compact hash/scalar code and unused-library trims while retaining Reader, BLE P-256 and the 8 KiB stack. RAK4631 Full saves 57,496 flash bytes and 3,152 static RAM bytes versus preview3.
Support complete chapters and verse ranges with bounded app continuation replies and cooperative terminal output. Use nonblocking TCP writes under reader backpressure. Add scalar/signature comparisons and a linked ARM crypto/stack CI gate.
Validated clean RAK4631, T1000-E, T096 and V4 Full builds, host regressions, and physical RAK chapter/reconnect and signing comparisons. Physical signing averages 35.9 ms versus 14.4 ms with the original table.
Enroll a private channel and publisher public key on repeaters and room servers. Local Companion fleet sends sign targeted or whole-fleet commands, with expiry, durable replay protection, and a restricted command allowlist. Preserve exact transmitted-reply barriers for secondary-radio changes, bound validation and replies, and qualify crypto, persistence, transport scope, role permissions, and compact-profile exclusions with regression tests.
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.
Use a bounded uzlib-derived block encoder with the existing strict tinf decoder, qualify infrastructure roles, budget temporary RAM, and cache running-image metadata. Add self-serve CLI and policy, USB host-loss sleep grace, hardware test harnesses, regression tests, and CI coverage.
Keep Companion and Terminal Chat profiles unchanged; retain full-sensor and reduced-sensor OTA builds. Add compact crypto and OTA names, qualified display asset compression, font license packaging, and scope regression tests.
Import Airoha GPS RTC backup sleep, 24 contact search results, and the T-Echo Lite USB companion target. Preserve existing GPS telemetry and power-saving controls, crypto alignment checks, ESP32 RTC recovery, and RAK11310 dynamic-preference compatibility.
Validate GPS sleep acknowledgments with their NMEA checksum and add six native regression tests covering retry, drain, corruption, grace timeout, and timer rollover.
Verified: 1648 native and KISS modem tests; targeted nRF52, companion routing, one-key DM, and clock checks; T1000-E BLE, MeshTracker X1 USB, and T-Echo Lite USB companion builds.
Add acknowledged SetFs and packet-cache shortcuts for SX1262, extend the LR1110 FS-mode fast path with buffered SPI, and keep the expander-backed Indicator on its previous path. Include HIL fixtures, validation notes, and regression tests.
The major rev from 19.x to 20.x breaks Radiolab, so pin it for now. This should fix the failing wio-e5-mini_repeater builds.
ltoa is removed upstream, so it was replaced with snprintf. The p[] buffer is always 16 bytes. Copy/paste for why claude thinks this is fine below, but also if this is broken it wouldn't be new.
```
exp2 in [23, 30] (int_part = mantissa << (exp2 - 23)): this is where int_part can reach its true max, up to 2,147,483,520 — 10 digits. That's what the snprintf bound of 11 (10 digits + NUL) is sized for. But in this branch frac_part is never assigned anything other than its initial 0, so only *p++ = '0' runs for the fraction — 1 char, not 7.
exp2 in [0, 22] (int_part = mantissa >> (23 - exp2)): this is the only branch where frac_part can also be nonzero and enter the 7-digit loop. Here int_part < 2^23 by construction, so it's capped at 7 digits, never 10.
```
Integrate ExpressLRS TX module support and its stacked ESP32 heap changes.
Use the approved Linkflow calibration (17-30 dBm), preserve the PA drive
and output path after radio recovery, and keep LoRa OTA enabled.
Preserve stored ACLs and filters on allocation failure, release owned
client/filter buffers, service heap OTA contexts on Companions, release
self-serving workspaces after TempRadio, and reset staged-resume state
when a context is released. Keep manual staging and active operations
alive. Account for all moved allocations in the runtime RAM gate.
Validation: 1,393 native cases; radio-power, heap-context, ACL persistence,
shared-queue transfer, display/inbox, radio receive, and memory regressions.
Firmware builds passed for Linkflow, Heltec V2 Companion, T-Beam MQTT
repeater, Heltec V4 R8 MQTT repeater, RAK4631 repeater, and Indicator Full.
Physical verification awaits access to the currently offline lab Pi.
Persist separate display modes and timeouts in seconds for battery and USB power, expose four controls in WebConfig and CLI, and apply one shared policy across display-equipped roles.
Detect R8 external power from a USB host or calibrated battery voltage above 4.21 V, with cached sampling and hysteresis. Add policy, persistence, browser, and R8 power-detection regression coverage.
mikecarper
Daniel Ekman
agessaman
Elektr0Vodka
Blake Latchford
Kevin Le