v5.0.0-beta.1

CHANGELOG

• #20429 [BUGFIX] TS lint-level error in mixins/-proxy.ts
• #20410 [BUGFIX] Add missing type declarations in the preview types for @ember/template-compilation
• #20379 [CLEANUP] Remove deprecated @ember/error package
• #20380 [CLEANUP] Remove deprecated assign polyfill
• #20381 [CLEANUP] Remove deprecated @ember/string package
• #20382 [CLEANUP] Remove deprecated injection
• #20402 [CLEANUP] Drop support for ember-cli-mocha and ember-mocha when generating test blueprints
• #20406 [CLEANUP] Remove deprecated auto-location
• #20413 [CLEANUP] Remove deprecated routing.transition-methods
• #20414 [CLEANUP] Add @ember/string to smoke-tests app
• #20415 [CLEANUP] Remove unused imports
• #20416 [CLEANUP] Finish cleaning up Location interface