Release Notes of twinstudio

Our twinstudio follows the semantic versioning format in the form major.minor.patch: https://semver.org/ ⧉.

Studio 0.10

Released on 07-August-2026.

New Features:

[General]
- Studio now provides the ability to duplicate existing drafts.
- Extended the functionality to duplicate existing twins for type twins. Until now, users could only duplicate instance twins. Now, they can duplicate twins of any kind (type, not-applicable).
[Builder]
- Add support for the creation/manipulation/deletion of arbitrary properties if a submodel provides these (e.g. Technical Data 2.0, Digital Nameplate 2.0).
- Add automatic deduction of property attributes from concept descriptions for arbitrary properties.

Fixes:

[General]
- Several style inconsistency fixes for UI elements across all parts of studio.
- Fixed text fields to be single line only, where multi line inputs are not sensible.
[Catalog]
- Digital Nameplate submodels could not be filtered correctly, due to an error in the semantic id used for the search. Adjusted the search filter so that they appear in search.
[Builder]
- The builder would resolve the invalid SMT for some submodels (Handover Documentation in particular), if multiple SMTs use the same semantic ID. Use template ID to uniquely identify the correct SMT.
- The "Add Documents" button would be shown for all submodels, regardless whether it was sensible there, or not. Fixed it to appear only in Handover Documentation submodels.

Studio 0.9

Released on 20-July-2026.

New Features:

[General]
- Realize ABAC rules in twinstudio, honoring read/write permissions for data access and providing the user only with the operations matching to their role.
[Catalog]
- Introduce new card view of the twin & submodel catalog.
- Enhance catalog to display what submodel template a submodel instances is based on.
- Clicking into the locked SpecificAssetID form now directly opens the unlock dialog.
- The concept description inspection dialog now is directly accessible via its data specification.
[TwinBuilder]
- Add AI-assisted document classification for Handover Documentation 2.0. This functionality automatically derives meta-data, such as classification from uploaded documents.

Studio 0.8

Released on 19-May-2026.

New Features:

[TwinBuilder]:
- Enhanced "edit submodels" dialog
  - Add multiple instances from one template
  - Add existing SM of another twin - as reference or copy
  - Add existing SM by ID - as reference or copy

Fixes:

[TwinBuilder] Fixed overlapping label of RelationshipElements
[TwinBuilder] Show ModelReference to other Twin works again and not only darkens screen
[Catalog] Tenant content now gets properly reloaded after session expiration

Studio 0.7

Released on 01-Apr-2026.

New Features:

[General]:
- Enhanced toast messages and notifications for improved user feedback.
- New export dialog for configuring the scope, format and target of exports.
[TwinBuilder]:
- Added form support for submodel elements of type RelationshipElement.
- Introduced icons in the navigation tree representing different submodel element (SME) types [experimental].
- Values of a FormChoices template qualifiers are now offered as dropdown options in forms.
- Boolean datatypes of Property SMEs are now represented as dropdown options in forms.
- Enhanced support for ReferenceElement enabling pointing to elements of other twins (ModelReference) and to external resources (ExternalReference).
[Statistics]:
- Introduced Tenant Statistics page, providing a beautiful dashboard with visualizations of tenant-level usage data.

Fixes:

[TwinBuilder] Fixed wrong tooltip displayed on submodels with unavailable template.
[TwinBuilder] Removing items from a SubmodelElementList now removes the selected element instead of always removing the first one.

Studio 0.6

Released on 04-Feb-2026.

New Features:

[General]:
- Added help button (?) to app menu in upper right corner which opens twinstudio documentation in new tab.
- ID generator offers new {ASSET-ULID} token that allows the same ULID to be used for generating asset IDs and AAS IDs.
[TwinBuilder]:
- Added form support for submodel element type Entity (represented as tree node) with following limitations:
  - Only globalAssetIds are supported for referencing self-managed entities, no support for specificAssetIds yet.
  - Limited support for co-managed entities: No adding statements that are not specified by the template in use.
- Enhanced source selection search when creating a new twins by duplicating an existing instance.
- Moved "Edit Submodels" action to right side of shell selection button above navigation tree.
- Added "Edit Submodels" option to more menu (three vertical dots).
[Catalog]:
- Introduced Catalog of Files:
  - List all files stored in twinsphere's File Repository.
  - Applying filter criteria to catalog view like file size, creation date, classification, file/display name or any custom attribute value.
  - Editing of file properties including display name, classification and custom attributes.
  - Upload of new files to twinsphere and setting their properties.
  - Download of file.
  - Copy twinsphere File Path to clipboard (aka TFP, reference to file to be used in a File submodel element).
- Removed dummy source selection button in upper left catalog corner (no function so far).

Fixes:

[TwinBuilder] Builder now opens also twins with IDs that have encoded urlsafe characters.
[TwinBuilder] Long twin names are now truncated with "..." at the end when displayed in the shell button.

Studio 0.5

Released on 14-Jan-2026.

New Features:

[General]:
- Introduced user settings menu in top right corner.
  - Shows info of currently logged-in user account.
  - Moved language settings and tenant switch from sidebar to the settings menu.
- Displayed value of MLP form elements can now be selected by clicking on the respective language tag
[TwinBuilder]:
- Added status bar representing the save state of the current twin ("published" / "draft saved" / "unsaved changes")
- Export Twin as AASX Package directly from within editor (available for twins in "published" state only)
- Added view button to open twin in AAS-Viewer (available for twins in "published" state only)
- Replaced very technical fill-in pattern of date and time values by comfortable and localized selection via UI component (valueType of property in SMT has to be XS:date, xs:time or xs:datetime)
- Introduction of deep links to directly open a certain twin in TwinBuilder by adding URL query parameter twinid, orgid and tenantid
[Catalog]:
- Export of twins as AASX Package available in "more" menu
- Deletion of Twins in Twin Catalog with and without its SMs
  - Deletion of SMs also referenced by other twins is prohibited

Fixes:

[General] Menu headings haven been harmonized in their formatting
[Catalog] Fixed display of SM details on twins with zero submodels in twin catalog
[TwinBuilder] Cancel on edit twin modal doesn't lead to endless spinner anymore
[TwinBuilder] Fixed display of long twin names in AAS button

Studio 0.4

Released on 21-Nov-2025.

New Features:

[General]:
- Established consistent behavior of popup dialogs
[TwinBuilder]:
- Added initial form support for submodel elements of type ReferenceElement.
  - For now only setting and display of references to elements of the currently opened twin are supported.
- Export Twin as XML or JSON to File or Clipboard from within Twin Builder
- New option to open a twin from file for editing (AASX, JSON, XML) available in Dashboard
- Build with twinstudio signature added to AAS and submodels (via extensions)
[Catalog]:
- Added export (JSON/XML) to file or clipboard in more menu of
  - Twin Catalog
  - Submodel Catalog
  - Submodel Template Catalog
  - Concept Description Catalog
  - Draft Catalog

Fixes:

[TwinBuilder]:
- Proper handling of all optional submodel elements (deletion and adding)
- It is possible to open empty twins (shell without any SM references)
- Text in File submodel-element is capped to max editor width
- Fixed broken layout by enabling multiline form elements for MLPs and Properties
- It is possible to add/remove elements to submodels which structurally do not adhere to their referenced template

Studio 0.3

Released on 30-Oct-2025.

New Features:

[General]:
- Submitting feedback is now possible for everyone (no need for Jira login)
[TwinBuilder]:
- Editing of further shell properties (globalAssetId, assetKind, specificAssetId(s))
- Display of assetType property and possibility to open referenced type twin in AAS Viewer
- Selection of assetKind in Creation Wizard
[Catalog]:
- Added buttons for creation of new twin directly in Twin and Draft Catalog
- New Catalog of Concept Descriptions, including display of IEC61360 properties

Fixes:

[General]:
- Upload of files >1MB is possible now

Studio 0.2 (MVP)

Released on 02-Oct-2025.

General Features
- Login with twinsphere ID Account (same as for Cloud)
- Language Settings
  - EN and DE as UI Language for app labels
  - Any Data Language for value display of multi language properties
- ID Generator Basic: configurable patterns for GlobalAssetID, AAS-ID & SM-ID
- Tenant Switch: Users may connect to any tenant of their assigned organizations
- Studio Storage for non-twinsphere data (e.g., drafts, app settings)
- Feedback Button to collect valuable customer feedback
Rudimentary dashboard, purely for navigation purposes
Twin Catalog
- List twins (AAS+SM) from repo
- List referenced SMs of an AAS
- List submodel instances from repo
- Quick filter for AAS by type/instance
- First simple filters for AAS (mainly nameplate properties)
- "View": Open twin or its SM in viewer
- "Edit": Edit twin in Twin Builder
- Instance-AAS > “Duplicate Twin” > Twin Builder (Clone AAS including SMs)
Submodel Template Catalog
- List SMTs from Repo
Draft Catalog
- List all Twin Drafts
- "Edit": Continue editing a Twin Draft
- "Publish": Transfer Draft Twins to Repo
- "Delete": Delete Twin Draft
Twin Builder
- Creation Wizard for new twins
  - ...from scratch
  - ...based on an existing twin (duplication)
- Maintenance of selected shell properties, including thumbnails
- Add/remove submodels (SMTs from repo)
- Filling in/editing values of SME of type Property, MultiLanguageProperty, File, and Range (other types to follow)
- Comfort display and maintenance of MLPs, including transparency on applied display logic
- Support for external links and upload of twinsphere files on SME of type "File"
- Indication if SMT of submodels are resolvable and accessible
- Marking mandatory fields with (*)
- Issue list with validation errors based on Metamodel
- Template qualifiers from SMT (cardinalities)
- MLP and Range value checks
- Inserting and removing ToMany SMEs (cardinality ..ToMany)
- Editing DisplayNames of all tree nodes (AAS, SM, SMC, SML)
- Saving drafts
- Publishing edited twins to the twinsphere repos