Hi Saket,
The above link clearly explains how to see the versions: Now you are at 1:28:1.
-> Please update your UI library version to 1.28.18 ( as Masa mentioned below )
-> Apply the above mentioned Notes mentioned by me.
This blog helps you to understand the versions and patches.
SAPUI5 Library: Understanding SP Levels, Versions and Patches
Regards,
Vijay