Problem with an updating of some addons


Hello group,
Today I have found out, that some addons are available. When I wanted to download the addon Systrai list, Nvda said, that a new version is not compatible with version of Nvda 2019.2.1.
When I wanted update Nvda 2019.3, I found out, that no update is available.
What can I do for I could have a new version of Nvda?
Is a new version of Nvda stable version?


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