1.27.0-rc1

Features

• Merge 2.x and 3.x compose formats and align with COMPOSE_SPEC schema (version field is optional)
• Implement service mode for ipc
• Pass COMPOSE_PROJECT_NAME environment variable in container mode
• Make run behave in the same way as up

Bugs

• Ignore build context path validation when building is not required

Miscellaneous

• Drop support for Python 2.7
• Bump docker-py to 4.3.0
• Bump tox to 3.19.0
• Bump virtualenv to 20.0.30