The third pull request updates the 'unstable_isConcurrent' prop to 'isConcurrent' in the ReactTestRenderer and makes several other modifications. The fourth request updates the act function to use react-dom/test-utils as a fallback for React 17. The final pull request introduces enhancements to the DevTools feature flags and hook indices, including adding new functions and modifying variables and conditions. It also includes changes to build scripts for different environments and adds new feature flags and a new environment variable.
Key takeaways:
- The first pull request updates URLs for the assertions to use markdown reference links and adds a new parameter 'include_schema' to the 'assert_queries_count' and 'assert_no_queries' assertions.
- The second pull request makes several changes related to database configuration and logging, including removing custom logging classes and related methods, and adding a new initializer to handle deprecated configurations.
- The third pull request updates the 'unstable_isConcurrent' prop to 'isConcurrent' in multiple places within the ReactTestRenderer, and adds a new property 'isConcurrent' to the TestRendererOptions type.
- The fourth pull request updates the act function to use react-dom/test-utils as a fallback for React 17 and adds comments to explain the fallback usage.