- Add global Axios configuration through HttpModule.register and support DynamicModule in NestFactory.create;
- Introduce @Optional decorator, enhance ExternalContextCreator, enable ModuleRef to access imported providers and hierarchical module resolution;
- Fix bugs including multiple FileInterceptor instances, custom decorator parameter requirement, Fastify middleware wildcards, inherited guards, NATS subject wrapping, and recursive OnModuleDestroy in testing modules
v5.2.0
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Fixed early return issue causing Server-Sent Events (SSE) aborts in core
Fixed multiple core, common, and fastify issues: shared singleton providers, regex file type matching, route wildcard conversion, middleware prefix handling, lazy module scanning, and enum validation.
Added an override mimetype option to the file‑type validator and introduced SSE comment support in the core module