v12.0.3

## v12.0.3 (2026-09-15)

#### Bug fixes
* `microservices`
  * [#17766](https://github.com/nestjs/nest/pull/17766) fix(microservices): always run the kafka processing end hook ([@kamilmysliwiec](https://github.com/kamilmysliwiec))
  * [#17757](https://github.com/nestjs/nest/pull/17757) fix(microservices): fail pending requests on client close ([@hktitof](https://github.com/hktitof))
  * [#17746](https://github.com/nestjs/nest/pull/17746) fix(microservices): bound memory held for a TCP peer ([@kamilmysliwiec](https://github.com/kamilmysliwiec))
  * [#17745](https://github.com/nestjs/nest/pull/17745) fix(microservices): destroy open TCP sockets on shutdown ([@kamilmysliwiec](https://github.com/kamilmysliwiec))
* `common`
  * [#17738](https://github.com/nestjs/nest/pull/17738) fix(common): validate uuid version and variant when no version is set ([@otnc](https://github.com/otnc))
  * [#17761](https://github.com/nestjs/nest/pull/17761) fix(common): invoke proto-key stripping hook via this in transform ([@koreahghg](https://github.com/koreahghg))

#### Dependencies
* `platform-express`
  * [#17762](https://github.com/nestjs/nest/pull/17762) fix(deps): update dependency multer to v2.4.0 ([@renovate[bot]](https://github.com/apps/renovate))
* `common`
  * [#17753](https://github.com/nestjs/nest/pull/17753) fix(deps): update dependency file-type to v22.1.0 ([@renovate[bot]](https://github.com/apps/renovate))

#### Committers: 4
- Abdellatif Anaflous ([@hktitof](https://github.com/hktitof))
- Kamil Mysliwiec ([@kamilmysliwiec](https://github.com/kamilmysliwiec))
- otoneko. ([@otnc](https://github.com/otnc))
- 한국 ([@koreahghg](https://github.com/koreahghg))