Hi sir,
what is the newest UHF RFID kits available today? 860-960 MHz Development kit with module, tags, antenna, software, drivers, design guide etc.
Can you share more information to me?
Can I use CC1200 EVM KIT to achieve my requirements?
Is there any upgrades or changes planned for this CC1200 development kit?
Thanks,
Regards,
For CC1200 you can find the TI official hardware development tools under https://www.ti.com/product/CC1200#design-development##hardware-development and software under 
No changes are planned to this offering.
For the TI side we have not actively looked into RFID with this device. Hence I don't have the full overview of the requirements here.
