Release candidate
Release candidate is a version that will soon be released as a new stable version. For example, before 1.7.0 is released, there is 1.7.0-RC version, which is a release candidate - it has all new features and is available for testing.
How to switch existing installation to release candidate
Run those commands in webui directory:
How to switch back to stable version in master branch:
Run those commands in webui directory:
How to get release candidate in a new webui installation
Run those commands (this will create a directory called webuirc - you can use a different name, and you can also rename the directory afterwards):