Release 2021.07

Dear RIOTers,

We are happy to announce the 28th official release of RIOT:

----------------------- * RIOT 2021.07 * -----------------------

The 2021.07 release includes:

  • Many improvements to ztimer usage
  • Added nucleo-wl55jc and Seeeduino XIAO boards
  • stm32f1 kconfig support
  • Fixed multiplication overflow in calloc, a.k.a. BadAlloc, for all supported platforms

169 pull requests, composed of 339 commits, have been merged since the last release, and 16 issues have been solved. 37 people contributed with code in 69 days. 685 files have been touched with 23625 (+) insertions and 7000 deletions (-).

You can download the RIOT release from Github by cloning the repository and checkout the release tag 1 or by downloading the tarball 2, and look up the release notes for further details 3.

A big thank you to everybody who contributed!

Best regards, Kevin

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