Release V26.3
Built on Windows Server 2019 Standard
MSBuild v17.0
MSI: Wix v1.14.2
Released on: 6/5/2026
If .NET Framework 4.7.1 or greater is not present on the system, it must be installed prior to installation.
Features
Axiom
Logs debug messages for communication in and out of Axiom to troubleshoot performance issues
More FontSize Options for font-based controls
Historian
Calculations: Improved support for custom static functions through plugins
Store and Forward
Ability to proxy over unencrypted channels when configured
Configurable data directory paths for operational data such as the buffer directory
Receiver
Bug Fixes
Administrator
Email settings EAL message contains encrypted credentials string
Email alert fails on whitespace email entry
Email alerts being sent multiple times for the same event
Adding empty log filter in messages and then unchecking its parent prevents saving changes
Calculations: Using the "!" denotation causes the filter to become case sensitive again
Calculations: "Backfill Some" filtering deselects selected assets
Admin Client: Cannot connect to Administrator service lower than 26.1
Admin Client: Cannot logon to collector machine on 26.3 with Identity service on pre-26.1 version
Identity: (Axiom Security) Adding a path starting with different casing from previous entries causes client to crash.
Identity: (Axiom Security) If a path has a space at the end of it, it sorts the entry to the bottom of the list
Identity: (Axiom Security) Sometimes displays the wrong user in the edit dialog
Identity: Crashes when adding Axiom Security permissions for a path which is not already in the list
Identity: Adding two users then removing one causes no user changes to be saved
Identity: Unable to add multiple unsaved entities to any ACL
Identity: Removing unsaved Canary Group can clear unrelated External Group changes
Identity: Removing unsaved Canary User can remove unrelated External Users
Identity: Does not show Tag Security permissions for any existing node except the root
Identity: External user is removed if you link it to a different user then remove the original user
Identity: After creating a new Canary user or group, it is not available to be used in the Axiom Security screen until the Identity tile is closed and reopened
Identity: Remove "remotely" from the Admin Logon ACL description
Identity: Making multiple changes in Groups before applying causes issues
OPC: CSV test browse says successful when save fails
Publisher: Interval EAL changes are not formatted correctly
Views: Metrics do not update for the Activity table for Views>Diagnostics
Views: Refresh Analytics button does not actually refresh analytics
Views: Appears to hang when its unable to retrieve data
Axiom
Startbound aggregate in Axiom charts not displaying correctly
Color selection does not persist the first time when trying to change the color for State drawing in trends
Asset grids still show column calculations even if there are no assets showing as a result of a filter expression
ListBox radio button mode allows unselecting
Scripting fails when a control name starts with a number
NCalc null exception error on load when using if() expressions
Print Screen does not draw/print screen correctly
ListBox OnSelectionChange cannot update selection in script
Script for EventTable OnClick was not setting event context
DataTable no longer displaying aggregated data in descending order
State Drawing mode is not matching cursor value when line thickness is greater than 0
Asset instance application using Button control results in error
Legend strings formatted as numbers
Properties column in Event Table no longer there
Collectors
CSV: Does not parse decimal correctly for non-English OS
CSV: Logs error when stopped
CSV: Change sort order on file import to alphanumeric
MQTT: Some EAL messages contain no changes or return multiple EAL messages
OPC UA: EAL for group SampleInterval setting not formatted correctly
OPC UA: Tag disappearance when configuring duplicate tags
Excel Add-in
The Value At function returns an empty cell whenever it encounters a NoData quality in the Historian
Historian
Crashes during file recovery when an older HDB file has a creation time that is ambiguous due to daylight savings
Calculations: Renaming events results in losing old event data
Calculations: Logs Views error message when request to Views fails
Calculations: Ensure duplicate expression variables are unique for migration to batch
ODBC: Cannot connect to ODBC service with API token credentials
Views: Caching sometimes prevents Historian dataset node from being rebuilt when dataset changes
Views: Virtual views for a local Historian with non "localhost" source (i.e. machine name) do not rebuild when source changes
Views: Removing node recursively does not work
Views: Cannot Edit or Delete View when grayed out
Views: API Documentation lists "non-bad" option for quality parameter but it does not work
Views: API Error returned for getTagData2 call when setting useTimeExtension
Identity
DHS error occurs at startup on fresh install
Installer
Migration does not run for unattended install through the exe
Logger does not install properly when either doing a repair/change or when the username contains a space on a standard install
License
Race condition where license file cannot be loaded
Store and Forward
Scenario where data can be discarded indefinitely due to sessions not shutting down if the Collector is unexpectedly shutoff
Deadband should not discard elements with the same value because elements may need to extend their time duration
API: DataSet with a space on the end of the name throws error
