Elastic Cloud Enterprise (ECE) 1.0.1, a minimal maintenance release, was announced to address security vulnerabilities in Kibana and Elasticsearch 5.4.0, ensuring that new ECE installations default to version 5.4.1 of these components. Users with version 1.0.0 do not need to upgrade their ECE installation but are advised to add the Elastic Stack pack for version 5.4.1 and upgrade their clusters accordingly, especially the admin-console-elasticsearch and logging-and-metrics clusters, as well as any existing 5.4.0 clusters. Although there is no supported method for deleting Elastic Stack packs, it is recommended not to create new 5.4.0 clusters. The installation process for version 1.0.1 remains the same as version 1.0.0, with further details available in the ECE installation documentation.