Spectra T1 test environment upgrade

Dear Derivatives market test environment users,

After evening clearing session (14:15) on May 19^th and until May 21^st 2020 the Spectra T1 test environment will be shut down for upgrade to a new version. The list of changes in the new version will be published in several days. Previously announced derivatives market release date and scope have changed, the next release is scheduled for July 6th 2020.