Release Date

April 9, 2020 (Final)

February 10, 2020 (Planned)

Important Notes

New Features

Support for Bluetooth Core Specification 5.1

  • Support for Periodic Advertising Sync Transfer (PAST) - both transmission and reception
  • Periodic advertising scanner improvements

New blestress test application

This application allows for automated stress and performance testing of the stack.

Dialog DA1469x CMAC driver

This driver was moved from Mynewt repository.

Support for LE Secure Connections out-of-band (OOB) association model

This allows to use OOB pairing with LE Secure Connections (previously only legacy OOB pairing was supported).

Support for automated generation of syscfg for ports

This allows to easily keep ports configuration up-to-date.

Enhancement/Fixes to existing features 

  • Qualification related bugfixes
  • BLE Mesh improvements - fixes and resync with latest Zephyr code
  • RIOT OS port fixes and improvements
  • btshell sample application improvements
  • improvements for bttester application
  • Controller duplicates filtering improvements
  • Multi PHY support improvements
  • Memory and CPU usage optimizations
  • Use of packed structs for HCI (code size reduction)
  • Linux sample improvements
  • PTS test instructions updates
  • Clock managements improvements in controller

Known Issues and Limitations

  • GATT Long Write is failing on nRF51


  • No labels