These release notes have been generated from the commit log of the 4.x stream and the associated bugzillas.
The first commit is ec600fa4de45f6a6ada27232942811622ac77bd1 in the master branch.
The last commit is 6b26e3e7937f803ea959a5e72e88e657d6f591c5 in the master branch.
The previous build of the 4.x stream is R20210308-1312.