Falcon LogScale 1.251.0 GA (2026-07-28)
| Version? | Type? | Release Date? | Availability? | End of Support | Security Updates | Upgrades From? | Downgrades To? | Config. Changes? |
|---|---|---|---|---|---|---|---|---|
| 1.251.0 | GA | 2026-07-28 | Cloud | Next LTS | No | 1.177.0 | 1.177.0 | No |
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Use docker pull humio/humio-core:1.251.0 to download the latest version
Bug fixes and updates
Breaking Changes
The following items create a breaking change in the behavior, response or operation of this release.
Functions
LogScale LTS version 1.258 will include a breaking change to subquery semantics for the
worldMap()andsankey()functions. Result fields will no longer be automatically detected, and results must be assigned to a specific field - magnitude forworldMap()and weight forsankey()respectively.This change avoids unpredictable behavior in sub-queries, and allows further development on related systems. The following is an example of a query that is impacted by this change:
logscaleworldMap(lat=lat,lon=lon,magnitude={ w_squared := w*w | sum(w_squared) | magnitude := math:sqrt(_sum) })Currently, the query will be interpreted as:
logscaleworldMap(lat=lat,lon=lon,magnitude={ w_squared := w*w | magnitude := sum(w_squared) })From version 1.258, the
math:sqrtpart of the query will no longer be discarded.
Advance Warning
The following items are due to change in a future release.
Documentation
Our documentation homepage, functionality, and content will undergo a series of improvements before the end of August 2026. As the volume of content on the site has grown significantly, we recognize that finding the right information can be challenging. These changes are designed to improve navigation, make content easier to find, and provide clearer distinctions between content areas.
Functionality and Navigation
New Default Homepage โ Improved navigation and organization to help you find information more quickly. The existing legacy homepage will remain available.
Curated Content Pages โ Topic-specific pages that provide key resources tailored to different areas of the documentation. Each page includes:
Search scoped to that specific content area
Highlights of new and recently updated pages
Guided Workflow Pages โ Step-by-step, page-by-page guides to help you learn about specific areas of LogScale.
Bookmark Groups โ Organize bookmarks into custom groups to create your own categorized link collections.
Page Watching and Notifications โ Monitor pages and content for changes, so you're always aware of updates to the content you use most.
Custom Homepage โ Set a Curated Content page as your homepage, so visiting library.humio.com takes you directly to your preferred content area.
Content Improvements
New CrowdStrike Query Language (CQL) Manual โ A standalone manual covering:
Query structure and execution context
Internal data representation
Datatypes used in queries and functions
Function types, input and output values, and related functions
Common query patterns organized by use case and challenge
Guides for translating SQL to CQL
New Getting Data Out Manual โ Covers the different ways to extract information from LogScale, including APIs, the search interface, dashboards, and automation.
New Getting Data In Manual โ Covers the methods, tools, and integrations available for ingesting data into LogScale.
New Administration Manuals โ Separate, dedicated manuals for Self-Hosted and Cloud customers.
We will provide updates as each improvement becomes available โ we welcome your feedback as the changes roll out.
API
Starting in version 1.258, the
queryjobsendpoint will always use pagination, even when no pagination arguments have been given. When no arguments are provided, the endpoint will return the maximum page size and an offset of 0. Unless the dynamic configuration parameterQueryResultRowCountLimithas been raised from its default value, this will initially be the entire result.All clients should begin transitioning to use the paginated polling method ahead of version 1.258.
Deprecation
Items that have been deprecated and may be removed in a future release.
The userId parameter for the updateDashboardToken GraphQL mutation has been deprecated and will be removed in version 1.273.
Behavior Changes
Scripts or environment which make use of these tools should be checked and updated for the new configuration:
GraphQL API
After an organization is soft deleted using the removeOrganization mutation, you can now only call the following mutations on that organization:
recoverOrganization โ Restores the organization to visible state.
rollbackOrganization โ Fully deletes the organization under certain conditions and permissions.
Previously, you could call any mutation on a soft-deleted organization.
Configuration
The rollout of the feature covered by the feature flag
UseInMemorySegmentOwnerHostshas been reverted due to performance issues occurring in certain configurations.The following feature flags have been removed and the mechanisms they cover have been disabled:
UseInMemorySegmentOwnerHosts
EnableInMemorySegmentOwnerHostsFeatureJob
UseWeightedOwnerHostsForBucketedSegmentsWhen rollout restarts for this feature, a new feature flag will be used.
Ingestion
Externally supplied tag values for the field #humioAutoshard will now be dropped at ingest preparation. The tag is removed from any events where this is the case, and an error will be recorded on the affected event.
New features and improvements
Configuration
The optional configuration variable
FILE_INPUT_STREAM_READ_TIMEOUThas been added to configure the idle read timeout of uploaded files. If the variable is not present, the Pekko default of 5 seconds will be used instead.For more information, see Relative Time Syntax.
Queries
LogScale's query editor now provides auto-completion suggestions for known saved queries within the current view when entering
$. Note that cross-view saved queries are currently not suggested.
Fleet Management
The collector instance details dialog now displays whether a Log Collector instance supports manual or remote updates.
Fixed in this release
User Interface
Fixed an issue where a user's assets would not display in sandbox view if the user ID was removed from the URL.
Storage
Fixed an issue with Google Cloud Storage (GCS) bucketing and proxy settings, where GCS bucketing was using an HTTP proxy based only on the environment variable
HTTP_PROXY_HOSTwhen it should have also included the environment variableGCP_STORAGE_USE_HTTP_PROXY. This issue has now been resolved.
Known Issues
Storage
For clusters using secondary storage where the primary storage on some nodes in the cluster may be getting filled (that is, the storage usage on the primary disk is halfway between
PRIMARY_STORAGE_PERCENTAGEandPRIMARY_STORAGE_MAX_FILL_PERCENTAGE), those nodes may fail to transfer segments from other nodes. The failure will be indicated by the error java.nio.file.AtomicMoveNotSupportedException with message "Invalid cross-device link".This does not corrupt data or cause data loss, but will prevent the cluster from being fully healthy, and could also prevent data from reaching adequate replication.
Improvement
Storage
The
DELETE /api/v1/bucket-storage-targetAPI has been updated to account for uploaded lookup files and baled uploaded lookup files.The following behaviors now apply:
If any uploaded lookup files exist, the deletion will be blocked.
If the deletion is forced by the user, the files will have their respective bucket references removed in the same manner as segments are currently handled. The files will still exist in Global Snapshot and on local disk.
Configuration
The size limit on LogScale
stdoutlogs in the default log configuration has been increased from 16KB to 512KB.
Fleet Management
A toggle has been added to the page to group similar errors by replacing IP addresses with
addrand UUIDs withuuid. This reduces clutter from many unique but similar error messages. The toggle is enabled by default.