Scheduled - Qubole will be performing an upgrade of Rails from v3.2 to v4.2 in the Qubole application backend.

As part of this change, we will upgrade the Qubole application backend which includes command processing infrastructure and many background jobs that provide infrastructure management and monitoring capabilities such as cluster lifecycle management, reporting, etc. We do not expect any impact to these capabilities during the change and we will be closely monitoring performance across our customer base during and after the maintenance.
For details, please refer: https://docs.qubole.com/en/latest/security-guide/ror-upgrade.html
Jun 17, 01:12 PDT

Scheduled - As we get ready to ship our next major release R56 on gcp.qubole.com, we are excited about several new capabilities. You can find R56 release notes here - https://docs.qubole.com/en/latest/release-notes/releasenotes-GCP-R56/release-highlights.html

This activity will take place on Monday, June 03, 2019, 01:30:00 AM PST and last approximately 3 hours including maintenance execution and verification. We do not expect any downtime during the upgrade process.
May 28, 03:57 PDT