Version 2.1.0-beta2 Released

2.1.0-beta2 release of Herald for C++.

New features:-

• C++ herald wearable sample has much more reliable scanning, discovery, and advertising when interacting with other devices #99
• Exposure and Risk Scoring API now running and working with multiple variables per risk model (as part of #89)
• Increased the use of fixed memory containers, replacing C++ stdlib containers such as vector (as part of #89)
• Updated and fixed SampleList and AllocatableArray fixed memory types, bug fixes, increased reliability, reduced likelihood of template substitution failures (as part of #89)
• • See herald-tests/exposure-manager-tests-new.cpp for tests and samples (to be documented on the website before the full v2.1 release)

Known issues:-

• Still working on Exposure Notification (i.e. turning some humanProximity exposures into MyIckyDisease exposures) part of API (within #89)
• Still some limited use of std::vector and std::map within the Analysis API

Version 2.1.0-beta1 Released

2.1.0-beta1 release of Herald for C++.

Key features:-

• Reliable operation over 24 hours
• Various C++ dynamic memory fixes
• Payload of wearable/beacon can be read reliably
• Connect/disconnect reliable
• Logs didMeasure and didMeasureWithPayload to remote Nordic UART clients
• Tuned memory performance on nRF52832DK

Known issues:-

• Doesn't run on nRF52832DK in Release mode (fine in Debug mode)
• Still does not yet read payloads from remote devices (See #99)

Version 2.0.0 Released

2.0.0 release of Herald for C++. Our first formal C++ release.

This is the first release of the C++ API. Key features:-

• Core feature parity with Android and iOS API, except no support for Share Payload or Immediate Send messages
• C++ API will be the first API with new features moving forward. Those changes will be added to other API for the same release version.
• Includes the Herald Core API, and the Analysis API.
• Most memory management done on the stack for embedded platforms (see data.h and memory_arena.h)
• Venue beacon sample works on all DK platforms: nRF52832DK, nRF52833DK, nRF52840DK, nRF5340DK

Known issues:-

• Wearable sample stops advertising after a few minutes
• Wearable sample does not exchange its payload on read
• Wearable sample does not read remote payloads correctly for other Herald devices
• Some use of std::map and std::vector still in use (Payload Sharing (unused) and Analysis API (to be changed for v2.1)

Hex files for the DKs for all apps are in the attached zip.

Version 1.3.0-beta2 Released

Final beta branch of the new C++ API now at version 1.3.0-beta2

Features include:-

• Full base C++ Herald API the same as Java and Swift implementations
• Fixed Payload and Simple Payload implemented
• Support for TinyCrypt (default) and mbedtls security libraries, and the nRF CC3xx random generation features if available
• Implemented a new Coordinator API for multi protocol (E.g. Bluetooth, UWB, etc.) support in future
• Implemented a streaming fixed-memory size data analysis API
• C++ now becomes the reference implementation for Herald
• Tested with nRF52832DK, nRF52833DK, nRF52840DK, nRF5340DK
• Wearable and Venue Beacon samples working well
• Memory stack use variable by how many simultaneous connections are supported on each board

Known issues:-

• Memory footprint too large for nRF52832 in Debug mode (works fine for release)
• Analysis API not enabled on wearable yet (compilation issue with analysis logging delegate)
• Still some use of shared_ptr internally in the Herald API (Should only be used for Sensor Delegates)
• No removal of old devices from memory over time (so memory will fill up eventually)

Version 1.2.0-beta3 Released

This is the first Beta release of the Herald C++ native API. This API aims to bring low-cost wearables and beacons to reality to help in the fight against COVID-19.

Main features:-

• Basic compatibility with Herald for Android and iOS
• Wearables sample
• Venue Beacon (alternative to QR code scanning) sample
• Tested against nRF5340DK, nRF52840, nRF52832

This release's hex files for nRF5340 are attached. 'zephyr.hex' for the network core, 'merged.hex' for the app core.