Minecraft wiki entry for Development_versions, associated text: MCL-11253 - Long version names are cut off in the "Edit installation" dropdown
MCL-11440 - Can't edit or delete launcher profiles installed by mod installers
MCL-11958 - While in "Create new Installation" dialog, Version Picking Screen is Blank
MCL-12035 - The new Instalation panel doesn´t let me change the version
MCL-12066 - Minecraft Launcher Game Directory does not know how to cope with a linux file format
MCL-12077 - Cannot launch minecraft on latest beta launcher.