Kurichan, chill.
If you don't want answers and comments (even IF they are not the answers you expected), then don't post questions.
You'll find literally hundreds of threads here where the issue was discussed in many formats before arriving at the answer.
Quote:
Connected with the BIS 2.8 upgrade?
How the heck do we know what version of BIS we're using?
How is the new Google sync functionality in 2.8 accessed?
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So if you only want specific answers to your specific questions:
Yes.
You repush your service books and it will be on 2.8