This is a minor update compared to Ndless r2015. It introduces compatibility with the "capTIvate" touchpads found on CX II models with HW rev. AK and later.

For completeness, this is the changelog for r2015:

While the biggest change is obviously the support for the CX II models and operating systems, users of later CX calculators (HW revision W and up) can now enjoy a better LCD compatibility mode, with much better application support and performance.

Note that the needed CX (CAS) OS 4.5.3.14 is not directly available from TI’s download pages, only a special “installer” variant which formats the filesystem can be downloaded there. To avoid this needless formatting, you can download just the plain OS from a mirror on tiplanet.org: CX and CX CAS. If you are currently running 4.5.1 or 4.5.2, you need to upgrade to that version of 4.5.3.

Supported Operating Systems:

Clickpad/
Touchpad/CX | CX | CX II/CX II-T --- | --- | --- 3.1.0.392 | 4.0.3.93 | 5.2.0.771 3.6.0.546 | 4.2.0.532 3.9.0.463 | 4.4.0.532 3.9.1.38 | 4.5.0.1180   | 4.5.3.14