0.7.0

Breaking and upgrade notes

Read these before upgrading from 0.6.0.

• nessy_agent_turn has a new label VARCHAR(1000) NOT NULL column. The schema never alters
  an existing table, so a database created by 0.6.0 must drop and recreate nessy_agent_turn (or
  be recreated) before 0.7.0 starts; otherwise every turn's ending fails to commit. An application
  with nessy.initialize-schema=false must add the column itself.
• AgentTurn has a new label component after trajectoryJson. A custom AgentTurns
  implementation must store it and return it.
• A label is a category. inputLabel names the kind of work an input starts, from a small set
  of values, and is stored plain, unencrypted. An application whose label carries input content
  must change it before upgrading: from 0.7.0 the label is written in plain text to
  nessy_agent_turn. A label containing NUL, or an unpaired surrogate, is stored with U+FFFD in that
  character's place.

Added

• The task label on every turn row. The label an application gives an input is stored in
  nessy_agent_turn.label, so trajectories group by the kind of work.