====== NIOS Bugs=====
===== 9.0.0 =====
If custom Web UI TLS certificate is installed with a certain key size, GUI will be unavailable after upgrading to 9.0.0. Go to 9.0.1 or later instead.

===== 8.6.1 =====
Possible RPZ but that in some environments causes DNS process to core dump and restart until disk is full.

===== 8.5.5 =====
When upgrading from 8.5.5., upload the NIOS bin file on the right side of the toolbar since there is a known issue with using the blue 'Upgrade' button.

===== 8.5.4 =====
Do not run a GMC promotion if running Multi-Master DNS unless you have the hotfix installed. You will split the grid.

===== 8.5.2 =====
For NIOS Grid Upgrade, the Distribute and Test buttons in the main GUI might not work. Use the side buttons on the right instead.