browserbase/stagehand @browserbasehq/stagehand@3.4.0 on GitHub

#2080 21c78b3 Thanks @miguelg719! - Add variables support to v3 agentExecute API schema and remove experimental requirement
#2077 f437f73 Thanks @monadoid! - Fix frame registry handling for OOPIF pages
#2098 a783b99 Thanks @seanmcguire12! - bump transitive deps to patched versions
#2089 8d2f354 Thanks @shrey150! - Strengthen observe prompts so LLMs return complete encoded element IDs.
#2047 a87c1fc Thanks @tkattkat! - Set default agent mode to hybrid with auto routing to dom for non compatible models
#2101 26e6c96 Thanks @seanmcguire12! - move playwright-core, puppeteer-core, patchright-core from optional dependencies to peer dependencies
#2068 1d176c4 Thanks @filip-michalsky! - Remove the default temperature setting from v3 agent AI SDK calls so reasoning models that do not support temperature run without provider warnings.
#2040 1fa9613 Thanks @monadoid! - Prefer STAGEHAND_API_URL for Stagehand API overrides while retaining STAGEHAND_BASE_URL as a deprecated fallback.
#2065 9ff70dd Thanks @miguelg719! - Add support for CUA models: openai/gpt-5.4-mini, openai/gpt-5.5, and anthropic/claude-haiku-4-5
#2039 7640381 Thanks @monadoid! - Deprecate Browserbase project ID configuration.