Hi Deeksha, It seems as though the timestamp is different on the two versions by about 9.5 days <https://www.google.ca/search?q=1433876744+-+1434691675&oq=1433876744+-+1434691675&aqs=chrome..69i57j69i64.13623j0j4&sourceid=chrome&es_sm=122&ie=UTF-8#q=(1434691675+-+1433876744)+%2F+(60+*+60+*+24)>, so the new version your computer is notifying you of is likely a patch released a few days after the other more recent release. You should definitely download the latest version despite both being "1.9.23", since continuing to use the unpatched SDK might result in some issues for you.
Best wishes, Nick On Sunday, July 19, 2015 at 4:58:34 AM UTC-4, Deeksha Mishra wrote: > > > <https://lh3.googleusercontent.com/-C1rwrCF9wwY/VatmZnA5qYI/AAAAAAAAHvM/j6LO_NAYQC4/s1600/Screenshot_4.png> > I UPDATED AAPENGINE BUT STILL IT SHOW THIS MESSAGE > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/b75923ac-b59d-473a-85a1-cd368b3f6017%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.