Update release notes for 2026.02

Adds realization filter documentation
Adds user-defined percentile statistics curves
COMPLUMP
Adds documentation for surface display mode
Viz welsegs

Author: magnesj

content/3d-main-window/Surfaces.md

@@ -41,18 +41,30 @@ To make it easier to organize the surfaces you import into your project, ResInsi
 
 ## Surface Results
 
-Per default, ResInsight maps current **Cell Result** on a given surface. 
+Per default, ResInsight maps current **Cell Result** on a given surface.
 If another result is to be displayed, specify the result under **Surface Results** as shown below.
 
 ![](/images/3d-main-window/SurfacesSeparateSurfaceResults.png)
 
-Clicking a surface of a **View** in the **Project Tree** activates the Property Editor for allowing view settings as shown below. 
+Clicking a surface of a **View** in the **Project Tree** activates the Property Editor for allowing view settings as shown below.
 
 To change result displayed on the surface, please specify the desired result in the **Result Reference**
 section of the **Property Editor**.
 
 ![](/images/3d-main-window/SurfacesViewPropertyEditor.png)
 
+## Surface Display Mode
+
+When a surface cuts through a grid model, result values are mapped onto the surface geometry. Areas of the surface that fall outside the grid model are colored using the surface color. To avoid z-fighting and visual noise caused by overlapping geometries, the display mode can be controlled at both the surface collection level and per individual surface.
+
+The following display modes are available:
+
+- **Surface** -- The surface is drawn using a single uniform surface color
+- **Results** -- The surface is colored using mapped result values only
+- **Both** -- Both the surface color and result colors are shown (default)
+
+The display mode can be set on the top-level **Surfaces** folder in the **Project Tree** to apply to all surfaces, or overridden per individual surface in the **Property Editor**.
+
 
 ## Reloading Surfaces
 

content/Wells-and-Completions/WellPaths.md

@@ -70,6 +70,16 @@ The well path property editor lets the user control the appearance of the well p
 - **Well Info group** -- Metadata for the well path
 - **Well Picks group** -- Information about imported [well picks]({{% relref "formations" %}}#well-picks) file containing data for the current well path
 
+## Visualization of Well Segments (WELSEGS)
+
+ResInsight can visualize the well segments defined by the `WELSEGS` keyword. This makes it possible to inspect the exact start and end positions of each segment along the well path trajectory for QC purposes, without running a full simulation.
+
+This option is available in the **Property Editor** of the top level **Wells** object. In the group "MSW Segment Visualization", select the grid model to be used, and click the button "Update Segments".
+
+Clicking on an individual segment in the 3D view opens the **Result Info** window, which shows detailed information for that segment.
+
+Segment start and end positions can also be displayed as annotations in [Well Log Plots]({{% relref "welllogsandplots" %}}), in the same manner as well path casing data. This is useful for correlating segment boundaries with formation tops and simulation results.
+
 ### Casing Design
 Some Casing Design elements can be assigned to the well path by selecting **Create Casign Design** from the right-click menu of the well path.
 

content/import/EnsembleFileDialog.md

@@ -25,6 +25,7 @@ The dialog consists of the following fields:
 - **File Type**: The available file types will depend on the type of data to import. When importing summary data, there will be several items, and one with **SMSPEC**. 
 - **File Extensions**: List of file extensions, ie ".EGRID .GRID". The extension text is independent to the file type defined above, e.g. _CSV_ data can be imported from a file with extension "TXT"
 - Use 'realization-*' in filter : Replace the text "realization-12" with "realization-\*"
+- **Realization Filter**: Specify which realization numbers to include or exclude. Ranges are defined with `-`, multiple entries are separated by `,`, and exclusions are prefixed with `!`. For example, `1-7, !4-5` produces the list [1, 2, 3, 6, 7].
 - Ensemble grouping : Group ensemble by Main folder or Sub Folder (Used by FMU workflow)
 - **Effective Filter**: The effective filter displays the resulting full path search pattern. It is updated on the fly as the user edits the pattern fields. A text string of "..." indicates a complete recursive directory search.
 

content/plot-window/EnsemblePlotting.md

@@ -89,6 +89,10 @@ If the number of curves in a curve set is sufficient, ResInsight will calculate
 
 Statistics curves may be toggled on or off in the curve set's property editor.
 
+**User-Defined Percentiles**
+
+In addition to the default P10, P50, and P90 curves, custom percentile values can be defined in the curve set's property editor. Enter one or more percentile values (0–100) separated by commas. ResInsight will compute and display a statistics curve for each specified value.
+
 ## Delta Ensemble
 A new ensemble can be created based on calculations on two or more ensembles. 
 Such an ensemble is called an **Delta Ensemble**. 

content/releases/release-notes/releasenotes_2025_12.md

@@ -3,7 +3,6 @@ title = "What's New in 2025.12"
 weight = 97
 hidden = false
 search_ignore = true
-aliases = ["/releases/release-notes/latest/"]
 +++
 
 ## Radial Grid

content/releases/release-notes/releasenotes_2026_02.md

@@ -0,0 +1,50 @@
++++
+title = "What's New in 2026.02"
+weight = 96
+hidden = false
+search_ignore = true
+aliases = ["/releases/release-notes/latest/"]
++++
+
+## Ensemble Import
+
+Realizations can now be excluded when importing ensembles using `!`. For example, the expression `1-7, !4-5` produces the list `[1, 2, 3, 6, 7]`.
+
+See [Ensemble File Dialog]({{% relref "ensemblefiledialog" %}}) for details.
+
+## Validation and Consistency
+A valid range can now be defined for variables in the project file. During import, values outside the specified range will be clamped to the valid range.
+
+## Telemetry and Log Reporting
+**ResInsight** produces log messages, warnings, errors, and crash reports. These have previously been stored on the local file system. They can now optionally be sent to a cloud logging service, improving visibility into error situations and enabling an overview of selected application usage metrics.
+
+## Visualization of Well Segments
+**WELSEGS** can be exported from ResInsight. It is now possible to visualize the segments along the well path for QC purposes. Clicking a segment displays segment data as text. Segment boundaries can also be shown as annotations in well log plots. See [Visualization of Well Segments]({{% relref "wellpaths" %}}#visualization-of-well-segments-welsegs) for details.
+
+## Calculator Expressions
+- Improved handling of mixed upper and lower case
+- Fixed issue with nested aggregation functions. The following expression now works correctly: `a := min(if(b>3, 5), 50)`
+
+## Simulation Modeling Improvements
+- Added support for **WSEGSICD**
+- Added support for **COMPLUMP** https://github.com/OPM/ResInsight/issues/13254
+
+## Summary Plotting
+- Added support for calculation of block vectors in the form **BPR:15,28,1**
+- Fixed issue for **_DIFF** vectors when only the Mean statistics curve was visible
+- Improved interpretation and display of network summary vectors
+- Fixed issue when switching to "Time From Simulation Start" for ensemble realizations
+- Custom ensemble percentiles are now supported. See [User-Defined Percentiles]({{% relref "ensembleplotting" %}}#statistics-curves) for details.
+- Avoid time axis zoom when stepping vectors for ensemble curves
+
+## Surface Display Mode
+
+When a surface cuts through a grid model, z-fighting and visual noise can occur where the surface and result geometry overlap. A new **Surface Display Mode** setting has been added at both the surface collection level and per individual surface, allowing control over whether to show the surface color, result colors, or both. See [Surface Display Mode]({{% relref "3d-main-window/surfaces" %}}#surface-display-mode) for details.
+
+## Fixes and Improvements
+- Dual Porosity: When computing COMPDAT for dual porosity models, ResInsight now reads all input values from the **Fracture** result section. When exporting COMPDAT and similar data to file, the K index for fracture results is used.
+- Fixed issues with field units in VFP plots
+- Fixed issue for RMS well paths with spaces in the name
+- Fixed issue with the user interface for statistical ensemble surfaces
+- Fixed issue with formation dip for fractures
+