v1.4.0 - upstream refresh: ipykernel 6 → 7 (upstream major bump — affects the notebook/lab server process and the PyCBC Python Environment kernel; the default Python 3 (IGWN) kernel and igwn-py* variants are unaffected because they live in the CVMFS conda env). JupyterLab 4.6.1, Notebook 7.6.0. HTCondor IDTOKEN lifetime bumped to 7 days — long-running pods no longer need daily restart. Report issues to helpdesk.