Rana Release Notes

April 17th

## Features

  • Add map fullscreen button for draw study area (#3832)

  • In admin panel make active the default filter (some more small improvements) (#3902) (#3918)

  • Add “list all tenants” to org switcher (#3916)

  • Add estimated time for running processes (#3952)

  • User can add configurable unit of measurement for rasters (#3332)

  • Add filtering on processes list (#3217)

  • Add styling to GWSW data extracted from catalog (#3760) (#3923) TOPDESK 2602 0075

  • Added AHN2 t/m 6 source data to the catalog (#3468)

  • Improve Interpolate DEM process; any catalog entry or file can be used as input (#3468)

  • Add AHN to catalog, fix extract dataset, and modify prepare digital elevation process (#3961)

  • Move OGC 3D Tiles computation from Lizard to Rana (#3958)

## Publications 2.0:

  • Improved layer validity check when creating a publication version (#3866)

  • Support RDC backwards compatibility for styling endpoints (#4008)

  • Add migrate publication to version endpoint (#3738)

  • Improve user flow for empty files in publication (#2939)

  • Improve file layer selection table (#3888)

  • Show scenario layers in publications v2 (#3894)

  • Show styles from the RDC for publications (#3805)

  • Make shared links to publications v2 actually work (#3911)

  • Add profile stack to comments (#3497)

  • Handle version conflicts correctly (#3914)

  • Bug when duplicate sprite files are conflicting (#3760)

  • UX improvements for Publication Map V2 (#3905)

  • Show 2 study area’s on 1 map (#3756)

  • Don’t show open viewer button when user is viewing publication map (#3903)

  • Handle style.json being a string instead of parsed JSON (#4028)

  • Correctly position map scale (#3879)

  • Legends scenario not correctly mapped (#4027)

  • Improvements publication detail page (#3903)

  • Users can navigate to file detail by layer context menu (#3803)

  • Use rana popup for comments (#3945)

  • Improvement UI changes before publication V2 release (#4018)

  • Lock map center to popup location (#3226)

  • Give error for incorrect publiations ID in style endpoints (#3944)

  • Add data_type back in publication version files after API regression (#4005)

  • fix get styles using publication API key on endpoints not nested under publication (#4033)

  • Add style-in-publication check for v2 (#4035)

## Fixes

  • Make interpolate chunk size computation more strict when processing AHN (#3974) (#4006)

  • Remove DEM from simulation results, so that file sizes are much less (#3544) (#4004)

  • Make sure an HCC organisation can only be attached to 1 tenant (#3012)

  • Prevent treating API-keys ID as user ID to avoid authorization conflict (#3904)

  • Scenario recognition when aggregate_results_3di.nc is present

  • Processes that use the DEM after they have ben removed from scenario’s (#3954)

  • Processes using results netcdf when aggregation netcdf is present (#4012)

  • Drawing study area with touch device (#3892)

  • Change helvetica to roboto font (#3951)

  • Show extent when scenario has no layers (#3732)

  • Not fetch last revision in schematisation list (#3038)

## Other

  • Diminish the data usage in Lizard for simulation results (removed netcdf, gridadmin, DEM) (#3544)

  • Add process tags to OpenAPI schema (#4011)

  • Default job ordering from new to old (#3899)

  • Bump backend dependencies (#3940) (#4013)

  • Suppress threedi user sync issue during e2e test teardown (#3948)

  • Update API client (#3246)

  • Update info icon (#3250)

  • Add a clear query state button on test (#3257)

  • Add id to templates table (#3265)

  • Hide folder in process run results (#3261)

  • Job process time improvements (#3971)

April 3rd 2026

Features

  • Connect comments to maps (#3624)

  • Switch between published and draft versions (#3800)

  • Publication viewer mode (#3625)

  • Add legends for raster, vector and scenario layers in publication (#3355)

  • Improve bounds calculation, implement Zoom To (#3802)

  • Rerun processes with previous job (#3871)

  • Remove ref from publication style upload (#3876)

  • Accept HCC scenarios without DEM (#3864)

  • Add service desk role with read-only permissions (#3843)

  • Collaborator can comment with map_id on unpublished publication (#3872)

  • Handle publication version conflicts (#3920)

  • Directly fill in aggregation settings in create 2d flood model (#3747)

  • Button to publish the current publication version (#3800)

Fixes

  • Remove change version in add files to layers modal (#3816)

  • Add discrete item support to raster popup (#3767)

  • Disable mouse scroll on number input (#3611)

  • Bug fix vector legend (#3877)

  • Typo in path of style endpoints (#3865)

  • Adjust Clearly.hub billing integration to fix renamed redirect field (#3907)

  • Adjust to changed billing component in Clearly.hub (#3912)

  • Not automatically creating HCC users for Rana guest users (#3811)

  • Update descriptions simulate rainfall processes (#3833)

  • other process docs improvements

  • Remove outputs from JobRead (#3900)

Other

  • Use new (Prefect) workpool for rana test & staging in s_kub cluster (#3896)

  • Remove old publication map code, adapt everything that breaks (#3195)

  • Hotfix ordering string no initial (#3216)

  • Refetch job on mount when running (#3224)

March 26th 2026

Features

  • file-descriptor API access, v1 stable version, and in use check (#3817)

  • support pagination and filtering on a tag for processes (#3830)

  • Add clearly subscription login support (#3688)

Fixes

  • default ordering in process list endpoint (#3844)

  • RDC uses limit=1000 for process endpoint (#3848)

  • Renamed QML files of default styling files to correspond to the right layer (#3835) (#3836)

  • Prefect processes internal limit 200 (#3853)

  • Vector processing restore missing ID attribute in preview (#3852)

  • Last folder not being selectable in processes (#3786)

March 17th 2026

Features

  • Always compute the envelope of the scenario (#3754)

  • Add Stable (V1) endpoints for DT acogo (#3792)

Fixes

  • Add missing tag from dt acogo process

Other

  • Stop automatic module prefixing of OpenAPI schema types (#3742)

March 11th 2026

Processes

  • Process scenarios without preview (no 2D, or too large) (#3711)

  • Small improvements to prepare DEM from AHN process (#3702)

  • Added max water depth process

  • Add analyse flood duration process

Features

  • Add endpoint to retrieve share key for sharke key users (#3679)

  • Support for vector styling for individual layers in a publication (#3660) (#3666) (#3663)

  • Introduce deduplication of styles based on hash value of style files (#3671)

Fixes

  • Backwards compatibility of “User” type (creator fields) (#3701)

  • Building flood risk uses correct Lizard task endpoint (#3713)

  • Don’t allow creating api keys in tenant A for tenant B (#3725)

  • Decrease the chance of hitting HCC ratelimit in simulation tracker process

  • Check for name already exists before running Create 2D flood model 2602 0097 (#3575)

  • make sure create 2d flood model process makes a model too

  • Small improvements (#3570) (#3552)

  • Fixed mapping of styling required for gwsw layers (#3151)

  • Use last share as default and fix date warnings (#3141)

  • Let project map bounds be independent of list filters (#3633)

  • Publications v2: Remove metadata tab, add expiry date shared publication and publication size (#3581)

  • ‘Created at’ treated as derived object (#3668)

  • Small pagination bug fix (#3145)

  • File detail page for schematisations that don’t exist anymore (#3513)

  • Always fetch descriptor for file metdata (#3165)

  • Keep selected contributor in session (#3606)

Other

  • Adjustments for Publication type changes

February 24th 2026

Features

  • Add file layers to publication v2 (#3352)

  • Define study area add default filename based on selected area (#3585)

  • Use Prefect k8s workers in production to prevent interuption during release (#3521)

  • Proxy 3D tiles through Nginx with auth handeling to lower backend load (#3613, #3629, #3636)

Fixes

  • Backwards compatible Map ID in comments (#3648, #3655)

  • Simulation name has incorrectly calculated duration (#3634)

  • Constant timeseries rainfall event not working (#3628)

  • Draw study area is not working (#3601)

  • Draw study area POLYGON is not GEOJSON compliant (#3585)

February 18th 2026

Fixes

  • Make clear we use binary method (IEC) for calculating file sizes (#3549)

  • Draw define study area (#3601)

February 17th 2026

Features

  • Use Rana authentication in HCC frontends (#3427)

  • Add study area search (#2960)

  • Add support for styling of rasters (#3385)

  • Add calculate floor level process (#3480)

  • Processes to use 2025 friction and infiltration rasters as default (#3483)

  • Improve digital elevation description (#3479)

  • Minor improvements simulate historical rainfall events (#3492)

  • Prepopulate code field based on project name (#3246)

  • Prepopulate file name when create study area (#3103)

Fixes

  • Set correct size limit of scenarios (#3506)

  • Multiple files drag and drop upload invalidation improvements (#3424)

  • Broken URL param for tabs (#3546)

  • File URLs missing correct Rana tabs data (#3546)

  • Copy file link and processes description styling (#3469) (#3466)

  • Select scenario use tanstack and cleanup useeffects (#3311)

  • Alignment of login modal (#3347)

February 5th 2026

Catalogue

  • Added friction and infiltration maps for 2024 and 2025

January 28th 2026

Processes

  • Add Copenhagen flashflood rainfall event of 2011 (#3356)

Catalogue

Added the following maps:

  • Land cover: 2023, 2025

  • Land use: 2023, 2025, 2021, 2020, 2019, 2018, < 2018

  • Elevation: AHN2 WSS, AHN2 ruw, AHN3 WSS, AHN5AHN2 WSS

January 5th

As of this day, Rana has taken a big step forward.

3Di has fully transitioned into Rana. This means you can run the most advanced hydrodynamic water analyses more easily than ever. In addition, the website has been renewed, the Rana Training Center is now open, and more releases are coming soon.

Hydrodynamic modelling in Rana

3Di has transitioned into Rana, making the most advanced hydrodynamic analyses available through the platform. This step opens up hydrodynamic modelling to a wider audience and gives modellers more support than ever.

Existing 3Di users can log in to Rana with their current credentials. You will receive a separate email with your personal Rana organisation code, which is also required.

Through the Rana platform, Rana users can now build models in the browser, run scenarios, assess flood impacts, and analyse and share results. Using the Rana Catalogue, you collect the required data; Rana Processes guide your analysis; and with Rana Publications you share map outputs with others.

New: Rana HCC and Rana Live

In the familiar left-hand sidebar of the platform, you will now find two new features: Rana HCC and Rana Live.

In Rana HCC, you manage your own schematisations, models, API keys, and simulations, and monitor the progress of all simulations within your organisation. This gives you more control and ownership over your models and results.

Rana Live lets you start, follow, and adjust live interactive simulations. It is an effective way to quickly and collaboratively gain insight into the water system and the structure of your model.

Rana Desktop Client

The 3Di Modeller Interface has transitioned into the Rana Desktop Client. All plugins have been updated. Editing and result analysis work as you are used to, now in a renewed environment. The Models & Simulations workspace is fully integrated into the Rana plugin.

Especially for 3Di users, we have created a short video showing how Rana provides better support and more possibilities.