These rectifications are always subjected to user responses. Whenever a Tally user finds a problem there is a mechanism in Tally by which it can be reported to the company. It would be rectified in next release which is almost after every month.
The new stat version of Tally 9 rel 2.1 which is stat 65 is also to be downloaded as major enhancements related to Bihar VAT has been done. Some minor modifications in Delhi and Kerala states has been done.