# Difference between build and rebuild **URL:** \ **Category:** B&R Software & Runtime\ **Tags:** automation-studio\ **Created:** [December 6, 2023, 1:55pm UTC](https://community.br-automation.com/t/difference-between-build-and-rebuild/1395 "2023-12-06T13:55:15Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![raWagner](https://avatars.discourse-cdn.com/v4/letter/r/FF8800/32.png) [@raWagner](https://community.br-automation.com/u/raWagner)\ **Post date:** [December 6, 2023, 1:55pm UTC](https://community.br-automation.com/t/difference-between-build-and-rebuild/1395/1 "2023-12-06T13:55:15Z")
I’m working the first time with the B&R Automation Studio and i don’t understand what’s the difference between build and rebuild. Can someone exlain this to me? ---
**Author:** ![marcel.krausert](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/marcel.krausert/32/98_2.png) [@marcel.krausert](https://community.br-automation.com/u/marcel.krausert)\ **Post date:** [December 6, 2023, 2:03pm UTC](https://community.br-automation.com/t/difference-between-build-and-rebuild/1395/2 "2023-12-06T14:03:00Z")
A Build will try to identify only the updated parts of the project and compile these, whereas the rebuild will remove the old binary data and compile the whole project! ---
**Author:** ![brittany.langston](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/brittany.langston/32/74_2.png) [@brittany.langston](https://community.br-automation.com/u/brittany.langston)\ **Post date:** [December 8, 2023, 7:42pm UTC](https://community.br-automation.com/t/difference-between-build-and-rebuild/1395/3 "2023-12-08T19:42:54Z")
You can also find additional details about the differences between a build and rebuild in the Help on the following pages: - [Build](https://help.br-automation.com/#/en/4/programming%2Fbuild_buildactiveconfiguration.html) - [Rebuild](https://help.br-automation.com/#/en/4/programming%2Fbuild_rebuildactiveconfiguration.html)