• fix rebar_app_info:source/1 spec
• fix the version range parser to support and/or version constraints
• IPv6 support for getting Hex packages
• CT: disable cth_readable_failonly hook when verbose option is set
• relx: do not discard command line parameters when parameter is not in config
• Support env variable substitution with defaults in rebar shell
• Improve documentation
• Return manifest macros as objects
• Expand extra src dirs recursively in manifests
• Make xref recognize apps again