Hello Selvakumar,
The KDS and CW will not be updated for kinetis products,
If you have used the CW, you can continue using it. CW not only support kinetis , but also other products, 8-bits,
16-bits and so on.
The KDS and MCUXpresso IDE are free , yes , if you want to merge to KDS, You'd better use MCUXpresso IDE,
MCUXpresso IDE is the IDE for LPC and Kinetis going forward.For new or future projects it is recommended to use the MCUXpresso IDE.
You can find and download it at here :
MCUXpresso IDE|NXP
Hope it helps
Have a great day,
TIC
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