Hi @K-Zanaty, V1.20 is the latest LTS (long term support) release, these versions are published once a year end of July. In between LTS versions we got early adopter releases, that are published every 4 months. See more information about our release cycle in: Release cycle of ctrlX OS, apps and engineering software.
If you want to get access to the early adopter releases, see here how to do that: FAQ for ctrlX Store.
You can still use V1.20 SDK and App Build Environment if you like, but there is one issue, when you want to use the App Build Environment and SDK V1.20. See my post in the forum.
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