[Q] what is this semaphore

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http://forum.xda-developers.com – OK so I know how to flash a new ROM on normal recoveries on my gs3, my sister who has a gs1vibrant, wants me to update her from parano1dandro1d to cm10.1 I have all the required downloads done. Then I go into recovery and it looks very similar except it has a few more options and other differences and it says semaphore cwm recovery v6.0.1.5. My question is: can I still flash as normal with this recovery? Many thanks (HowTos)