v1.16.0

Release v1.16.0

CLI

• aitools install now registers the official Claude marketplace if it is missing before installing the Databricks Claude plugin. (#6485)
• databricks aitools install --output json now reports an error_category for a failed or skipped install (per agent, and at the top level for a failure with no per-agent entry), giving coding agents and CI a stable classification of why an install did not complete. (#6482)
• databricks aitools install honors --output json, emitting a structured {scope, agents[...]} document that reports each agent's delivery and install status so coding agents and CI can consume the result without scraping the text output. JSON mode requires --scope and --agents so the command runs without interactive prompts. (#6481)
• databricks bundle sync now prints sync progress (Action: PUT, Uploaded ...) by default, matching databricks sync. Previously it was silent unless --output was passed. Use --output json for machine-readable output. (#6568)
• Support major-only DBR runtime versions such as 19.x-scala2.13 in the cluster picker used by databricks auth login --configure-cluster and databricks labs. (#6574)
• Deprecated the databricks environments setup-local --constraints-only flag in favour of the orthogonal --no-dbconnect; the flag still works as a hidden alias but is hidden from --help and prints a one-line deprecation notice, and will be removed in a later release. (#6470)
• Add orthogonal --no-constraints and --no-dbconnect flags to databricks environments setup-local: --no-constraints skips writing the remote Python-version and dependency pins, and --no-dbconnect skips the databricks-connect dependency. (#6464)
• databricks environments setup-local now reports a distinct E_PROVISION_CONFLICT error code in --output json when the project's dependencies conflict with the pins written for the target environment, making the requirements unsatisfiable (the same conflict surfaced as a W_USER_CONSTRAINT_CONFLICT warning); it is reported after the project files are written, without attempting the doomed provisioning, while other provisioning failures continue to report E_PROVISION. (#6479)
• databricks ssh connect and ssh setup now verify the tunnel's SSH host key against the key the workspace published for the connection, recorded in ~/.databricks/ssh-tunnel-known-hosts/<name> instead of ~/.ssh/known_hosts. Reconnecting with a name used before no longer fails with Host key verification failed when the compute behind that name changed, and no longer needs a manual ssh-keygen -R; host blocks written by an earlier databricks ssh setup pick this up once you re-run it. (#6557)
• Stop databricks ssh connect --ide from adding a duplicate entry to the IDE's Remote Explorer on every connect: the remote authority is now the SSH host alias alone, instead of embedding the per-instance remote OS user. (#6550)
• Add --max-clients and --server-timeout flags to databricks ssh setup, and --server-timeout to databricks ssh connect. Both are fixed when the SSH tunnel server job is submitted, so ssh setup now serializes them into the generated ProxyCommand instead of falling back to the built-in defaults. (#6547)
• ssh connect sessions no longer end when the tunnel's websocket connection is lost. The CLI reattaches to the running session and replays the bytes that were missed, so the shell and everything running in it stay intact, and a transient failure to open a replacement connection for the periodic auth refresh is retried rather than ending the session. Reattaching requires an SSH server started by a CLI that supports it; against an older server the connection behaves as before. (#6558)

Bundles

• Added PyDABs (Python) support for secrets: Resources.add_secret and the secret_mutator decorator. (#6553)
• Fix job and pipeline environment dependencies with a * version wildcard (e.g. numpy==2.5.*) being treated as local file paths. (#6555)
• Add the postgres_snapshot_schedules bundle resource for managing a Lakebase Postgres branch's automatic-snapshot schedule (direct deployment engine only). (#6449)

Dependency Updates

• Bump github.com/databricks/databricks-sdk-go from v0.175.0 to v0.177.0. (#6448)
• Bump Terraform provider from v1.128.0 to v1.131.0. (#6544)