Elastic Observability release notes

Review the changes, fixes, and more in each version of Elastic Observability.

9.0.0

Improves SLO navigation by separating details from the overview panel #212826
Enables the new Borealis theme #210468
Returns a 404 response only when the screenshot_ref is truly missing #215241
Includes the spaceId field in Service Level Indicator (SLI) documents #214278
Includes the recovery reason message in the rule context #211411
Enhances Synthetic SLOs by adding location context and correcting badge link behavior #210695
Updates the default sampling frequency to 19Hz #202278

Resolves an issue that prevented the chat feature from functioning correctly on the Alerts page #197126
Addresses a missing versioning issue in inventory_view_saved_object that could prevent the Observability Infrastructure Inventory view from loading post-upgrade #207007
Enables the use of wildcard filters in SLO queries #213119
Updates the Close project navigation label to Log out to better reflect the intended action for users in serverless environments #211463
Fixes an issue where clicking a name badge for a synthetics monitor led to a page that failed to load monitor details #210695
Fixes code scanning alert no. 456: Incomplete string escaping or encoding #193909
Fixes code scanning alert: Incomplete string escaping or encoding #193365