Originally Posted by 24left

It would be helpful to keep all questions and experiences related to Star Alliance Upgrades in a single thread. Easier to search ...instead of starting a new one each time.

These are other threads and their start dates:
March 2016 Aeroplan upgrade awards?
February 2016 Aeroplan miles to upgrade star alliance flight?
March 2015 Star Alliance upgrades on Air Canada
June 2014 Star Alliance Upgrade using Aeroplan Questions

Plus there are other threads from 2013, 2012, and 2011