v2.14.0

New Features

• [core, orchestration] Add GcpVertexAiEmbeddingModel type with gemini-embedding to @sap-ai-sdk/core.
  Add GcpVertexAiEmbeddingModel to the EmbeddingModel union in @sap-ai-sdk/orchestration. (cca7edd)
• [orchestration] Add reasoning content support to the Orchestration client.
  reasoning_content fields were added on response, streaming delta, and assistant message types.
  The getReasoningContent() and getDeltaReasoningContent() convenience functions return the reasoning text from model responses. (b986b70)
• [orchestration] Added overrideConfig field to OrchestrationConfigRef to pass a PartialOrchestrationConfig that overrides parts of the stored orchestration configuration at request time.
  Streaming via .stream() now automatically sets stream.enabled = true in the partial configuration override, so clients using a stored orchestration configuration reference no longer require streaming to be pre-configured in the stored configuration. (b986b70)
• [prompt-registry] prompt-registry: Update generated client to latest specification. (a268597)

Fixed Issues

• [langchain] Skip tool and assistant messages when applying cache_control, using the last applicable message (system, user, or developer) instead.
  Some models do not support cache_control on tool messages. (4003a12)
• [openai] Fix OpenAI client types to allow passing objects with model deployment details (model name + model version, deployment ID and/or resource group) instead of just model names. (016edcd)

Improvements

• [core] Add anthropic--claude-4.5-opus, anthropic--claude-4.8-opus, gemini-3.5-flash, gemini-embedding to the available model list. (cca7edd)