Release version 1.13.0-alpha8
Prepare release 1.13.0-alpha7
Prepare release 1.13.0-alpha6
Prepare release 1.12.6
Prepare release 1.12.6-beta1
Prepare release 1.12.3-alpha8
Prepare release 1.12.3-alpha7
Prepare release 1.12.3-alpha6
Prepare release 1.12.3-alpha4
Prepare release 1.12.3-alpha3