When a user switches between Classic and ES|QL mode in Discover, the preference is now persisted to local storage. The next time the user opens a new default Discover session, it automatically uses their last selected query mode instead of always starting in Classic mode.

Implementation PRs

• #250388 — [Discover] Persist query mode to local storage

Product issue: elastic/kibana#200765

Availability

Docs gap analysis

Using ES|QL

Section: Get started with ES|QL in Discover

Instructions say 'Select ES|QL or Try ES|QL from the application menu' to enter ES|QL mode. No mention that mode preference persists.
After this change, Discover remembers the last used query mode (Classic or ES|QL). A brief note that the mode preference persists across sessions would help users understand why Discover may open in ES|QL mode by default.