If you already have, or recently received, a 31-character license number, v5.4 is the latest version available for a free upgrade.
To update to the latest version 6.0, customers with version 5.4 or older must purchase a new activation key.
For more information and additional support, please c... https://education.ti.com/en/software/details/en/4F3C66EE2E684EDA801636D763A6184A/ti-nspirecxcas_pc_full_5_4
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