Transitioning from 1.x to 2.x

VOLTTRON(tm) 2.0 introduces new features such as agent packaging/verification, agent mobility, and agent resource monitoring. In addition, some existing features from 1.2 have been refactored. These changes are mostly confined to platform administration and should require minimal changes to existing agents aside from fixing imports and any hardcoded paths/topics in the code.

• “lite” has been removed from the code tree. For packages, “lite” has been replaced by “platform”.
• The agents are no longer built as eggs but are instead built as Python wheels
• There is a new package command instead of using a script to build an egg
• Agents are no longer installed with a 2 step process of “install-executable” and “load-agent”. Now the agent package is configured then installed.
• Agents are no longer distinguished by their configuration files but by a platform provided uuid and/or a user supplied tag.
• The base topic for publishing data from devices is no longer “RTU” but “devices”

The most visible changes have been to the platform commands for building and managing agents. Please see [PlatformCommands] (PlatformCommands “wikilink”) for these changes.