# config items

**URL:** <https://forums.freertos.org/t/config-items/1612>\
**Category:** Kernel\
**Created:** [October 14, 2008, 5:29am UTC](https://forums.freertos.org/t/config-items/1612 "2008-10-14T05:29:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\
**Post date:** [October 14, 2008, 5:29am UTC](https://forums.freertos.org/t/config-items/1612/1 "2008-10-14T05:29:20Z")

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**[tns1](https://sourceforge.net/u/tns1/)** wrote on [Tuesday, October 14, 2008](https://sourceforge.net/p/freertos/discussion/382005/thread/4c5894db/#b309):

Is there some reason the freertosconfig.h file does not contain all the options available in freertos.h ?  
I was trying to use mutexes and had to hunt down the config item.

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**Author:** ![rtel](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/rtel/32/31_2.png) [@rtel](https://forums.freertos.org/u/rtel)\
**Post date:** [October 19, 2008, 11:38am UTC](https://forums.freertos.org/t/config-items/1612/2 "2008-10-19T11:38:00Z")

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**[rtel](https://sourceforge.net/u/rtel/)** wrote on [Sunday, October 19, 2008](https://sourceforge.net/p/freertos/discussion/382005/thread/4c5894db/#b309/5df1):

New releases often contain new config items for which default values are provided within the core code to maintain backward compatibility and ensure project still compile.&nbsp; New config items are not necessarily added to all the exiting demo projects.

Regards.