2.0.0 (2026-07-16)

Features

• worker: migrate agent runtime from Claude Agent SDK to pi harness (#389) (5ff40f8), closes #356 #377 #383 #388

BREAKING CHANGES

• worker: Google Vertex AI is no longer a supported provider. The
  CLAUDE_CODE_USE_VERTEX, ANTHROPIC_VERTEX_PROJECT, CLOUD_ML_REGION, and
  GOOGLE_APPLICATION_CREDENTIALS environment variables, along with the
  use_vertex, vertex_project, and cloud_ml_region config.toml keys, are
  removed. Vertex users must switch to Anthropic, AWS Bedrock, or a custom
  Anthropic-compatible base URL.

The CLAUDE_CODE_MAX_OUTPUT_TOKENS environment variable and the
max_output_tokens config.toml key are also removed.