If you didn't update your wallet and you have funds blocked in Stratis QT Wallet , here are the steps  to follow to recover them.Thanks to Dev0tion here are the steps that you need to follow :

If you want to get funds out of QT wallet and move them to NEW CORE wallet  you need to follow these steps:

• be sure to have the latest version of QT wallet . You can download it from here : https://github.com/stratisproject/stratisX/releases/tag/v2.0.0.5
• Open notepad and add the following :
  addnode=108.7.36.183
  addnode=116.126.141.21
  addnode=142.93.140.208
  addnode=144.76.162.50
  addnode=148.251.20.133
  addnode=155.133.206.152
  addnode=167.86.77.3
  addnode=173.249.20.167
  addnode=176.117.65.140
  addnode=178.197.232.189
  addnode=24.13.229.203
  addnode=50.47.142.1
  addnode=69.73.78.26
  addnode=73.26.166.78
  addnode=78.182.15.57
  addnode=82.146.153.138
  addnode=82.228.240.150
  addnode=94.13.193.183

 Save the file under the name : stratis.conf  (be sure to be .conf and not .conf.txt)

Then move the file to :  %appdata%/Stratis (overwrite it ) .

While you do this , make sure that your wallet is closed. Open the wallet again after you added the file.

 Wait your wallet to be 100% sync and your balance will be OK.