What is ending
The opposite page to the preview radar. Runtimes losing support, models being retired, APIs going away, and behaviour changes with a date attached — on one countdown, nearest first.
6 inside ninety days
Inside thirty days
1This is not planning any more. If it is in production, it is this week’s work.
- in 2 days14 Sept 2026Workspace entitlement inheritance becomes mandatory Behaviour change Workspace
The enforcement date for inherited entitlements, with no opt-out left.
Check any automation that sets entitlements on system groups: that is what breaks.
This quarter
1Time to schedule the upgrade, not to start investigating it.
- in 87 days8 Dec 2026Old-format OpenSharing recipient tokens Behaviour change Discover Sharing data with OpenSharing
Tokens issued in the old format expire, at the latest, on this date.
Rotate recipient credentials before then, or the sharing partner loses access without warning.
No date, but on the way out
1Still works. Do not start anything new on it.
- no dateannounced 18 Aug 2026Deprecated system table columns and schemas Behaviour change Catalog System tables
Two lineage columns stopped being populated during 2026, and two schemas now hold empty tables.
Queries against them return nothing rather than failing, which is the worse failure mode. Check any dashboard built on them.
Dates come from the Databricks documentation and are re-checked by the agent. A runtime version is supported for roughly six months, and a long-term support version for three years from its general availability. Model retirements get at least three months of notice after the deprecation is announced.