Command
serve
Is this a regression?
The previous version in which this bug was not present was
18.0.1
Description
After upgrading my project from Angular 18 to Angular 19 using ng update, I've noticed a significant performance degradation with ng serve. Previously, rebuilds were much faster, but now they take up to 10 seconds or more.
Minimal Reproduction
https://github.com/Oussemasahbeni/saha-meter-frontend
I made the repo public until the issue got resolved, its a close source project for my company
Please check the clean-up branch
Exception or Error
Your Environment
Angular CLI: 19.0.2
Node: 22.11.0
Package Manager: npm 10.9.0
OS: win32 x64
Angular: 19.0.1
... animations, cdk, common, compiler, compiler-cli, core, forms
... material, material-luxon-adapter, platform-browser
... platform-browser-dynamic, router, service-worker
... youtube-player
Package Version
---------------------------------------------------------
@angular-devkit/architect 0.1900.2
@angular-devkit/build-angular 19.0.2
@angular-devkit/core 19.0.2
@angular-devkit/schematics 19.0.2
@angular/build 19.0.2
@angular/cli 19.0.2
@schematics/angular 19.0.2
rxjs 7.8.1
typescript 5.6.3
zone.js 0.15.0
Anything else relevant?
I managed to make it a little bit faster by disabling aot in development
"development": {
"optimization": false,
"extractLicenses": false,
"aot":false,
"sourceMap": true
}
but still a lot of people told that is not a solution but a workaround and it can hurt the project in the long term
Command
serve
Is this a regression?
The previous version in which this bug was not present was
18.0.1
Description
After upgrading my project from Angular 18 to Angular 19 using ng update, I've noticed a significant performance degradation with ng serve. Previously, rebuilds were much faster, but now they take up to 10 seconds or more.
Minimal Reproduction
https://github.com/Oussemasahbeni/saha-meter-frontend
I made the repo public until the issue got resolved, its a close source project for my company
Please check the clean-up branch
Exception or Error
Your Environment
Anything else relevant?
I managed to make it a little bit faster by disabling aot in development
but still a lot of people told that is not a solution but a workaround and it can hurt the project in the long term