- can be used to enable caching in a request without the need for any storage
- useful for example in complex console tasks that should still be independed

Docs guide russian translation: translated rest-routing.md into Russian

Fixes #4644: Added `\yii\db\Schema::createColumnSchema()` to be able to customize column schema used

Translated docs/guide/rest-controllers.md into Russian

Provide aggregate test runner

Update db-active-record.md to correct a minor typo

changed problem to problems to correct a minor typo.

Smarty improvements

Fixes #4659: adjusted nginx config in docs to serve 404 instead of "no input file specified" when accessing non-existing PHP file

Fixed typo in comments for generatePasswordHash

[skip ci] Translate docs/guide-ru/start-gii.md to russian language

[Uk][Guide] Add page translation

Grammar fixes

[ci skip][Uk][Guide] Add page translation