Release Notes of twinstudio

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

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