# What changed in anthropic

> 20 changes in anthropic 0.87 to 1 from its official release notes, upgrade guides and advisories: 2 security, 13 new APIs and options. Each one cited. Sources checked 2026-10-18. HTML: https://unstale.sh/pypi/anthropic/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## anthropic 1

### New APIs and options

- Adds between_tools to thinking types in model capabilities. (1.15.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.15.0)
- Adds the speed parameter to Messages. (1.15.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.15.0)
- Returns a Console organization's usage-tier spend cap as a read-only spend limit. (1.15.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.15.0)
- Adds usage.speed to Messages. (1.15.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.15.0)
- Set ANTHROPIC_OPEN_TELEMETRY=false to disable native OpenTelemetry support. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- Managed Agents agents now support execution_identity. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- Pass open_telemetry=False to the client to disable native OpenTelemetry support. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- An endpoint is available to test telemetry destinations. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- The Admin API now supports telemetry destinations. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- Multiagent configuration was added to Managed Agents. (1.13.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.13.0)
- Thread status filtering was added to Managed Agents. (1.13.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.13.0)
- Workflows were added to Managed Agents. (1.13.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.13.0)
- Types were added for Chat and Cowork unified analytics metrics. (1.13.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.13.0)

### Behavior and default changes

- The SDK uses a registered global tracer provider to create spans and exports them with the rest of your traces; requests also get trace context headers from the global propagator. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)

### Fixes and other changes

- Dropped streams close without waiting for the collector. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- Unknown event types pass through the message stream helpers. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- An event before message_start no longer raises "Unexpected event order". (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)
- Spend limit lists now include the organization_type_not_supported error. (1.14.0) — [release notes](https://github.com/anthropics/anthropic-sdk-python/releases/tag/v1.14.0)

## anthropic 0.87

### Security

- Claude SDK for Python has Insecure Default File Permissions in Local Filesystem Memory Tool (0.87.0) — [security advisory](https://github.com/advisories/GHSA-Q5F5-3GJM-7MFM)
- Claude SDK for Python: Memory Tool Path Validation Race Condition Allows Sandbox Escape (0.87.0) — [security advisory](https://github.com/advisories/GHSA-W828-4QHX-VXX3)