0.21.0

What's Changed

• refactor: remove crewai_coding_crew template by @allen-stephen in #509
• fix: improve A2A inspector local testing guidance by @eliasecchig in #513
• Fix remove streamlit deps by @eliasecchig in #514
• feat: update telemetry and standardize feedback model by @eliasecchig in #516
• fix: add missing feedback_logs_filter variable to main Terraform config by @eliasecchig in #518
• fix: refresh locks by @eliasecchig in #519
• Update GitHub PAT secret version reference by @eliasecchig in #520
• Refactor: Use substitution variable for secrets project ID by @eliasecchig in #521
• build(deps): bump js-yaml in /agent_starter_pack/frontends/adk_live_react/frontend by @dependabot[bot] in #511
• Migrate Cloud Run sessions to Cloud SQL and remove AlloyDB by @eliasecchig in #517
• Fix duplicate feedback_logs_filter variable declaration by @eliasecchig in #522
• Remove Streamlit frontend by @eliasecchig in #523
• Fix Cloud SQL dependencies in Cloud Run Terraform by @eliasecchig in #524
• feat: bump version to 0.21.0 by @eliasecchig in #525
• feat: add A2A agent support to register-gemini-enterprise command by @allen-stephen in #508
• Add Cloud SQL Admin API to required services for ADK Cloud SQL sessions by @eliasecchig in #526
• chore: bump inspector version by @allen-stephen in #527
• Fix Cloud SQL password encoding to handle special characters by @eliasecchig in #528

Full Changelog: 0.20.4...0.21.0