` of an `` in a `.view.xml` must carry an `id`. - Renamed ids in shipped views: inner tab bars of admin sections are now `access-control-views`, `monitoring-views`, `system-views` (before: `views`); the user-menu menu is `account-menu` (before: `account`). Overlays addressing them use `config:ref`: ``, ``. - An overlay that contributed an anonymous (key-less) entry to a keyed list and relied on merging into the base's anonymous entry now appends a second entry → give the base entry an id and address it. - See `doc:view-layer/overlays`. Detect: `grep -rn -e '` → ``. - An application scope becomes an operation on the type of the object the unit shows: `` (or on the security root without `object`). Declare the operation in ``; the role profiles assigned to the scope become `` entries of that operation. The `` configuration of `SecurityScopeService` and scope entries in `security.xml` are removed. - Command executability: - `` → `` on the command (add the channel to the command's `inputs`; omit `object` when the checked object is the one of the enclosing unit). - `` → ``. - `` → an `` check. - Custom operations used in grants, views, commands or privileged scripts must be declared on the type: ```xml ``` A grant of an undeclared custom operation is a configuration error at startup. Built-in operations `Read`, `Write`, `Create`, `Delete`, `Discover`, `Export` must not be declared. Each operation needs labels `commandGroup.` / `commandGroup..tooltip` in a resource bundle. - Entering edit mode of a form now requires `Write` on the form object unless `edit-operation` says otherwise; an `` with `` can be dropped. - `` on an empty input is disabled; a command running `` is hidden/disabled by the form's edit permission. - Access checks of commands running `` / `` are declared once on the `` (`` / ``). - Grants of command groups only checked by the classic UI do not belong in `` (the coverage check reports them as unchecked grants). - A `privileged-script` whose `security-object` yields a collection is now allowed when the user holds the command group on every element (was always denied). - See `doc:access-configuration`. Detect: ``` grep -rn -e '`. A remaining lambda head in a view script is a configuration error when the view is loaded (a per-module test `TestViewScripts` checks all `*.view.xml`). Steps: 1. **`input` → `inputs` on commands:** `input="ch"` on a command becomes `inputs="ch"`; rename with `inputs="selection as ticket, other"` or ``. `input` on other elements and on ``/`` stays a single channel (now with optional `as`). 2. **Remove lambda heads** in all view scripts (action chains, `refuse-if`, ``, `if`, `switch`/`case`, `confirm`, `notify`, `download`, `scroll-to-anchor`, `start-job`, `evaluate-script`, executability rules, derived channels, `row-class`, columns, `children`, …) and in `DisplayTargetService` configurations. Use `$` variables: - command `inputs` channels → `$` (or the `as` name); - default names of values supplied by triggers/elements: table row activation `row`, tree node `node`, `value-input` submit `value`, HTML link `link`, diagram click `element`, uploaded file `file`; drop: `objects` plus `target` / `before` / `parent` (renamable: `as`, `target-as`, `parent-as`, `before-as`); command without inputs and trigger value: `input`; - tables: `row` (`row-as`), column cell value `value` (`value-as`), dynamic column `column` (`column-as`), fixed: `members`, `left`/`right`, `params`; trees: `node` (`node-as`); object-list / kanban cards `element` (`element-as`), board column `column`, `on-reorder` also `objects`; calendar `entry` (`entry-as`), `start`/`end`/`allDay`/`title`; wizard `step` (`step-as`); switch cases see `value` (`as`); job scripts see `job` (blocks also `state`, `chunk`); derived channel `reverse` sees `value`; route parameters by their name, `reverse` the URL text as `value`. - Examples: `objects -> target -> …` → expression over `$objects`, `$target`; `row -> …` in `row-class` → `$row`; `node -> …` in `children` → `$node`; `t -> $t.…` with `inputs="selectedTicket"` → `$selectedTicket.…`; `s -> jobIsRunning($s)` with `inputs="jobState"` → `jobIsRunning($jobState)`. - An input name colliding with a supplied name is a configuration error (rename with `as`/`*-as`). 3. **Job scripts** (`start-job`): the job is `$job` instead of the first parameter. 4. **``:** an action that uses the previous action's result moves into that action's ``. The attribute `as` of an action becomes `` (default name `result`). Follow-up actions after ``/`` using their result move into the `` of the respective result action inside. Follow-ups after `` using its result move into its ``. 5. **UI-changing actions inside ``** (write channel, open/close dialog, navigation, messages, confirmations, downloads, …) move into the transaction's `` (else config error). 6. `` followed by `` to clear the selection → ``. 7. Single-value actions (``, ``, ``, ``, …) take `value=""`; default: innermost result, else the trigger's main argument. 8. `` has no result. 9. Behavior change to keep in mind: a command's executability rules (``, ``, rules of its actions) now see all named arguments (all `inputs` plus the trigger value) and are re-evaluated when any input changes (before: only the first input). `` and `label-expr` of ``/`` see the chain's arguments; targets configured in `DisplayTargetService` see the shown object as `$object`. Examples: ```xml

``` Note: lambdas *inside* an expression (e.g. `recursion(p -> …)`, `map(m -> …)`) stay; only the leading parameter head of the whole script is removed. Java API: `ViewActionChain.run`/`nest` take `ActionArguments`; `ViewCommand.Config#getInput()` removed (use `getInputs()`); `WithResultActions` has `getWithResult()` (`WithResult` with `getAs()`, `getActions()`) instead of `getAs()`/`getActions()`; `Inputs#getInputs()` returns `List` instead of `List`; `ViewExecutabilityRule` has additional `isExecutableFor(ActionArguments)`; a non-instantiable rule is now a configuration error. Reference: `doc:view-layer/channels` (section "Which names a script sees"). Detect: ``` grep -rln --include=*.view.xml -E '(expr|function|refuse-if|row-class|children|init|reverse|label-expr|visible-if|disabled-if)="[a-zA-Z_][a-zA-Z0-9_]* *->' . grep -rn --include=*.view.xml -e ' input="' -e ' as="' . ``` ### 4.2 Tile stack frames and `navigate-push` (#29942 description, migration section) - Every `` of a `` needs an `id` unique in the stack: ``. - `` → ``. The push must name a successor of the frame it is shown in (from the start view: a top-level ``), and `bind-input-to` plus `` must cover exactly the frame's parameters (route placeholders and ``s). For a value a frame receives without placeholder, declare ``. Every frame that is pushed must be declared (if needed without `route`). - Nest `` declarations the way frames are stacked; for recursion/reuse use ``. A flat list now means: each frame follows only the start view. - Display targets, ``, ``: a step that navigates into a tile stack becomes `` (bindings must cover the frame's parameters). Steps revealing embedded views keep `view="…"`. Detect: `grep -rn -e '` removed; multi-valued binaries (#29852) - `` no longer exists. Replacements: - only file input: a multi-valued binary attribute with `` (persisted), or without model attribute `` plus a command processing the files; - files stored as own composition objects: fill a channel (``) and reconcile on save via script: `` with `

`, `` with `` and refilling the channel. Template: React demo `comment.view.xml` / `comment-composer.view.xml` and `demoTicketsStoreAttachments` in `demoReactConf.config.xml`. (Note: with #29781 the `init` script has no lambda head, i.e. `init="$obj.get(…).map(a -> $a.get(…))"`.) - A `` inside a `` is now editable only in the form's edit mode; to keep it always editable set `edit-mode` to a channel holding `true`. - `max-upload-size` now limits each single file; limit whole multi-upload requests in the container (Jetty `multipart-config`). Per attribute: `` annotation on attribute/type. - Automatic migration `Ticket_29852_binary_attribute_values` (tl-element) creates tables `BinaryAttributeValue` / `BinaryAttributeValueUnversioned` and `` on `tl.core:Binary`; no data migration needed. Detect: `grep -rn -e '`, ``, `` is now `session`; `` takes `session` instead of `input`. Detect: `grep -rn -e 'getDefaultView()' -e 'getDialogView()' -e 'VIEW_BASE_PATH' -e 'ChildGroup' -e 'OpenDialogAction' -e 'design-tree' .` --- ## 5. Configuration form editors: `@ControlProvider` / `@ConfigControl` removed (#29860) — Java + XML | Old | New | |---|---| | `@ControlProvider(MultiLineText.class)` | `@MultiLine` (optional `rows = …`) | | `@ControlProvider(CommonMarkText.class)` | `@CommonMark` | | `@ControlProvider(CodeEditorControl.CPHtml.class)` / `CPXml` / `CPText` | `@Code(language = CodeLanguage.HTML)` / `XML` / `PLAIN` | | `@ControlProvider(ConfigXMLEditor.CP.class)` (with `@PropertyEditor(ConfigXMLEditor.class)`) | `@Code(language = CodeLanguage.XML)` (keep the property editor) | | `@EditorControlConfig(language = "ace/mode/json")` + `@PropertyEditor(DefaultCodeEditor.class)` | `@Code(language = CodeLanguage.JSON)` (both removed) | | `@ControlProvider(StructuredTextControlProvider.class)` | `@Html` | | `@ControlProvider(MacroControlProvider.class)` | `@Html(features = StructuredTextConfigService.FEATURE_SET_MACRO)` | | `@ControlProvider(TLScriptCodeEditorControl.PlainCP.class)` / `CP.class` on an `Expr` property | remove (value type `Expr` suffices) | | `@ControlProvider(GroupInlineControlProvider.class)` | `@Inline` | | `@ControlProvider(SelectionControlProvider.class)` on a selection | remove (selection dialog from 20 options or for tree options) | | `@ControlProvider(PasswordInputControlProvider.class)` | `@Encrypted` | | `@ConfigControl(X.class)` | own domain annotation marked `@ControlAnnotation` + entry in `` of `ConfigControlService` (SPI `ConfigAnnotationControlProvider`) | | application-specific ControlProvider via `@ControlProvider` | own domain annotation with `@ControlAnnotation`; entry in `` of the `EditorFactory` (SPI `AnnotationControlProvider`) and, if also edited in React UI, in `` of `ConfigControlService` | - XML customizations: `` or `` in `` → tags ``, ``, `

`, ``, ``.
- Own `` of `ConfigControlService` → ``. An ``
  entry for an own annotation requires `@ControlAnnotation` on it (else config loading fails).
- `MultiLineText` configuration with `rows` is removed → `@MultiLine(rows = …)`.
- Direct references to `CodeEditorControl.CPXml/CPHtml/CPText`, `ConfigXMLEditor.CP`,
  `MacroControlProvider` (wysiwyg), `EditorControlConfig`, `DefaultCodeEditor` → `@Code`/`@Html` or
  `CodeEditorControl.CP` / `StructuredTextControlProvider`.
- React WYSIWYG attributes (`tl.model.wysiwyg:Html`) are checked with SafeHTML on save; stored content
  with markup outside the whitelist (e.g. ``, custom elements) can only be saved again after
  removing that markup (data issue — inform the user, do not change data automatically).

Detect:
```
grep -rn -e 'ControlProvider' -e 'ConfigControl' -e 'EditorControlConfig' -e 'DefaultCodeEditor' \
  -e 'MultiLineText' -e 'control-provider' --include=*.java --include=*.xml .
```

---

## 6. Stylesheets: React controls moved to the design system (#29875, #29904, #29906, #29914)

Only relevant if the application has own CSS (or Java/TSX code) addressing the old `tl*` classes of
React controls. `tlReactControls.css` is deleted. General rule: **states are attributes, not classes**
(e.g. `[aria-selected="true"]`, `[aria-invalid="true"]`, `[aria-busy="true"]`, `[aria-pressed="true"]`,
`[data-tl-state~="…"]`). Complete mapping tables: design system repository, `docs/migration/altlast.md`,
sections "Welle 5a" … "Welle 5d".

Stylesheet registration (#29914): stylesheet `tl-react-controls-css` is gone → require
`tl-design-system-components` (or `tl-react-base`) instead. `tl-react-chartjs.css` is gone (block `tl-chart`).

### 6.1 Inputs (#29875)
Removed classes `tlColorInput*`, `tlIconSelect*`, `tlSlider*`; custom properties `--tlSlider-thumb`,
`--tlSlider-fill`, `--tlSlider-fill-color`, `--tlSlider-rest-color`. States: empty swatch
`[data-tl-state~="empty"]`; selected tab/palette cell/icon cell `[aria-selected="true"]`; error
`[aria-invalid="true"]`; warning `[data-tl-state~="warning"]`; mandatory `[aria-required="true"]`;
read-only renders a span instead of a button.

| Old | New |
|---|---|
| `.tlColorInput`, `__swatch`, `--noColor`, `--immutable` | `.tl-swatch.tl-swatch--color`, `[data-tl-state~="empty"]`, read-only span |
| `.tlColorInput__popup`, `__tabs`, `__tab--active` | `.tl-popover.tl-picker`, `.tl-tabs`, `[aria-selected="true"]` |
| `.tlColorInput__palette`, `__paletteCell` | `.tl-color-picker__palette`, `.tl-swatch.tl-swatch--color[role="option"]` |
| `.tlColorInput__mixer`, `__svField`, `__hueSlider` | `.tl-color-picker__mixer`, `__field`, `__hue` |
| `.tlColorInput__actions`, `__btn--ok/cancel/reset` | `.tl-button-bar.tl-picker__actions` |
| `.tlIconSelect`, `__swatch` | `.tl-swatch` |
| `.tlIconSelect__popup`, `__grid`, `__iconCell--selected` | `.tl-popover.tl-picker.tl-icon-picker`, `.tl-icon-picker__grid`, `__cell[aria-selected="true"]` |
| `.tlIconSelect__loading`, `__noResults` | `.tl-status` |
| `.tlSlider`, `--error`, `--warning`, `__input`, `__value` | `.tl-slider`, `__input[aria-invalid="true"]`, `[data-tl-state~="warning"]`, `__input`, `__value` |

### 6.2 Media (#29904)
Removed classes `tlAudioRecorder*`, `tlAudioPlayer*`, `tlPhotoCapture*`, `tlDownload*`, `tlFileChips*`,
`tlBinaryField*`, `tlImage*`, `tlPdfViewer*`, `tlHtml*`, `tlJobStatus*`, `tlCounter*`, `tl-wizard__steps`,
`tl-wizard__step-item`, `tl-wizard__disc`, `tl-wizard__step-name`. React control `TLCounter` removed.
States: recording `[aria-pressed="true"]`, uploading/loading `[aria-busy="true"]`, dragging
`[data-tl-state~="dragover"]`, empty file `[data-tl-state~="empty"]`, mirrored video
`[data-tl-state~="mirrored"]`, finished step `[data-tl-state~="done"]`, current step `[aria-current="step"]`.

| Old | New |
|---|---|
| `.tlAudioRecorder`, `__button`, `--recording`, `--uploading`, `__icon` | `.tl-upload` with part Button (`tl-button--danger`, `[aria-pressed="true"]`, `[aria-busy="true"]`) |
| `.tlAudioPlayer`, `__button`, `--playing`, `--loading` | part Button (`[aria-busy="true"]`) |
| `.tlPhotoCapture`, `__cameraBtn`, `__overlayContent`, `__overlayVideo--mirrored`, `__overlayToolbar` | `.tl-upload`, `.tl-dialog__surface`, `.tl-media__frame[data-tl-state~="mirrored"]`, `.tl-button-bar` |
| `.tlAudioRecorder__status--error`, `.tlPhotoCapture__status--error` | `.tl-file-upload__status[role="alert"]` |
| `.tlDownload`, `--empty`, `__fileName`, `__fileName--empty` | `.tl-file`, `[data-tl-state~="empty"]`, `.tl-file__name` |
| `.tlFileChips`, `--dragover`, `__add--uploading` | `.tl-chip-group`, `[data-tl-state~="dragover"]`, `[aria-busy="true"]` |
| `.tlImage`, `--fit-cover`, `--fit-contain`, `__image`, `__placeholder` | `.tl-media`, `--cover`, `--contain`, `__frame`, `__placeholder` |
| `.tlPdfViewer`, `__frame`, `__placeholder` | `.tl-media`, `__frame`, `.tl-status` |
| `.tlHtml--document`, `__frame`, `__print`, `--thumbnail`, `__page`, `--inline` | `.tl-overlay--fill`, `.tl-media--document`, `.tl-overlay__action`, `.tl-media--preview`, `.tl-media__frame`, `.tl-prose` |
| `.tlJobStatus`, `__header`, `__phases`, `__phase--done/active/pending`, `__bar`, `__error` | `.tl-job-status`, `__header`, `.tl-steps--vertical`, `[data-tl-state~="done"]` / `[aria-current="step"]`, `__bar`, `__error[role="alert"]` |
| `.tl-wizard__steps`, `__step-item`, `__disc`, `__step-name` | `.tl-steps`, `__item`, `__disc`, `__name` |

### 6.3 Calendar, kanban, dashboard, value list (#29906)
Removed classes `tlCal*` and `tlCalendar`, `tlKanbanBoard*`, `tlDashboard*`, `tlValueList*`,
`tlRowCommandCell` (now `tl-table__cell--command`, `RowCommandColumn.CSS_CLASS`), `tl-table__hint`
(now `tl-drop-hint`), custom property `--cal-ev-bg`. States: selected `[aria-selected="true"]`, today
`[aria-current="date"]`, non-working day `[data-tl-state~="nonworking"]`, other month
`[data-tl-state~="other"]`, day with events `[data-tl-state~="event"]`, preview `[data-tl-state~="preview"]`,
dragging `[data-tl-state~="dragging"]`, drop `[data-tl-state~="drop-before"|"drop-after"|"drop-onto"|"drop-refused"]`,
dashboard edit `[data-tl-state~="edit"]`, category `[data-tl-role="category-N"]`.

| Old | New (calendar classes are BEM elements of `.tl-calendar`) |
|---|---|
| `.tlCalendar`, `tlCalToolbar`, `tlCalNav`, `tlCalBtn`, `tlCalTitle`, `tlCalGranularity`, `tlCalBtn--active` | `.tl-calendar`, `.tl-toolbar.tl-calendar__toolbar`, part Button, `__title`, `.tl-segmented` (`[aria-checked="true"]`) |
| `tlCalTimeGrid`, `tlCalTimeHeader`, `tlCalDayHead`, `tlCalDayName`, `tlCalDayNum`, `tlCalGutter` | `__time-grid`, `__head`, `__day-head`, `__weekday`, `__day-number`, `__gutter` |
| `tlCalAllDayRow`, `tlCalAllDayLabel`, `tlCalAllDayCell`, `tlCalAllDayEvent` | `__all-day`, `__all-day-label`, `__all-day-cell`, `__event` |
| `tlCalScroll`, `tlCalTimeBody`, `tlCalHourAxis`, `tlCalHourLabel`, `tlCalColumns`, `tlCalCol`, `tlCalHourLine`, `tlCalWorkBand`, `tlCalNowLine` | `__scroll`, `__time-body`, `__hours`, `__hour`, `__columns`, `__column`, `__hour-line`, `__work`, `__now` |
| `tlCalEvent`, `--c`, `--default`, `--selected`, `--preview`, `--dragging`, `tlCalEventTime`, `tlCalEventTitle`, `tlCalResizeHandle`, `tlCalCreateInput`, `tlCalMonthCreate` | `__event` (`[data-tl-role="category-N"]`, states above), `__event-time`, `__event-title`, `__resize`, `.tl-field.tl-calendar__create` |
| `tlCalMonth`, `tlCalMonthHead`, `tlCalMonthWeekday`, `tlCalMonthBody`, `tlCalMonthWeek`, `tlCalMonthDays`, `tlCalMonthCell`, `tlCalMonthDayNum`, `tlCalMonthOverlay`, `tlCalMonthBar`, `tlCalChip`, `tlCalChipDot`, `tlCalChipTime`, `tlCalChipTitle`, `tlCalMore` | `__month`, `__month-head`, `__month-weekday`, `__month-body`, `__week`, `__days`, `__day`, `__day-number`, `__overlay`, `__event`, `__chip`, `__chip-dot`, `__event-time`, `__event-title`, `__more` |
| `tlCalYear`, `tlCalMini`, `tlCalMiniTitle`, `tlCalMiniGrid`, `tlCalMiniWd`, `tlCalMiniDay` | `__year`, `__mini`, `__mini-title`, `__mini-grid`, `__mini-weekday`, `__mini-day` |
| `.tlKanbanBoard`, `__column`, `__header`, `__label`, `__count`, `__cards`, `__card`, `__dropHint` | `.tl-board`, `__column`, `__header`, `__label`, part Badge, `__cards` (`role="listbox"`), `.tl-item.tl-board__card` (`role="option"`), `.tl-popover.tl-drop-hint` |
| `.tlDashboard`, `--edit`, `__grid`, `__tile`, `__tile--action`, `__tileAction`, `__overlay`, `__hide` | `.tl-dashboard`, `[data-tl-state~="edit"]`, `__grid`, `.tl-card.tl-dashboard__tile.tl-overlay.tl-overlay--fill`, `__action` (`.tl-visually-hidden`), `__cover`, `.tl-overlay__action` with part Button |
| `.tlValueList`, `--inline`, `--block`, `__item`, `__separator`, `__row`, `__handle`, `__remove`, `__add` | `.tl-value-list`, `--block`, `__item`, `.tl-select__separator`, `__row`, part Button |

Bridge API (`tl-react-bridge`): `avatarCategory` renamed to `categoryOf` (same mapping) — customer
adapters must switch. New: `textOn`, `isInteractiveTarget`, `isOperableTarget`, `kindAccepted`,
`ICON_PREVIOUS`, `ICON_NEXT`.

### 6.4 Foundation pieces and editors (#29914)
States: picking `body[data-tl-state~="picking"]`, anchor flash `[data-tl-anchor][data-tl-state~="flash"]`,
dragging `[data-tl-state~="dragging"]`, touch-drag armed `[data-tl-armed]`, interactive tooltip
`[data-tl-state~="interactive"]`, editable compact field `[data-tl-state~="edit"]`, editor error `[aria-invalid="true"]`.

| Old | New |
|---|---|
| `.tlFill` | `.tl-fill` |
| `body.tlPick--active`, `#tl-pick-highlight` | `body[data-tl-state~="picking"]`, `.tl-pick-highlight` |
| `.tlAnchor`, `.tlAnchor--flash` | `[data-tl-anchor]`, `[data-tl-anchor][data-tl-state~="flash"]` |
| `.tlDragShield`, `.tlTouchDragImage`, `[data-touch-drag]` | `.tl-drag-shield`, `.tl-drag-image`, `[data-tl-state~="dragging"]` / `[data-tl-armed]` |
| `.tl-tooltip-popover`, `-caption`, `-body`, `-arrow`, `--interactive`; `--tl-tt-padding` | `.tl-tooltip`, `__caption`, `__body`, `__arrow`, `[data-tl-state~="interactive"]`; no custom property |
| `.tlCompactField*`, `--edit`, `--view` | `.tl-compact-field`, `__preview`, `__opener`; editable: `.tl-field[data-tl-state~="edit"]` |
| `.tlWysiwygEditor*`, `.tlWysiwygToolbar*`, `--tl-wysiwyg-*` | `.tl-field.tl-rich-text`, content `.tl-prose`, toolbar `.tl-toolbar.tl-toolbar--wrap` |
| `.tlReactChart*` | `.tl-chart`, `.tl-chart__tooltip`, `.tl-chart__zoom-reset` |
| `.tlCodeEditor--error`, `.tlScriptEditor--error` | `[aria-invalid="true"]` (root classes `tlCodeEditor`, `tlCodeEditorSurface`, `tlScriptEditor` stay) |

Java API: Chart.js module drops `com.top_logic.layout.react.chartjs.Icons` (colour palette) and the
`themeColors` state of `ReactChartJsControl` (series colours come from the theme).
`ReactStackControl.setStateWords(String)` is new.

Detect (all of section 6):
```
grep -rn -E 'tl(ColorInput|IconSelect|Slider|AudioRecorder|AudioPlayer|PhotoCapture|Download|FileChips|BinaryField|Image|PdfViewer|Html|JobStatus|Counter|Cal|Calendar|KanbanBoard|Dashboard|ValueList|RowCommandCell|Fill|Pick|Anchor|DragShield|TouchDragImage|CompactField|WysiwygEditor|WysiwygToolbar|ReactChart)|tl-wizard__|tl-table__hint|tl-tooltip-popover|--tl-tt-padding|--tlSlider-|--cal-ev-bg|--tl-wysiwyg-|tl-react-controls-css|tl-react-chartjs.css|avatarCategory|TLCounter|chartjs\.Icons|themeColors' \
  --include=*.css --include=*.java --include=*.ts --include=*.tsx --include=*.xml --include=*.html .
```

---

## 7. Further notes (no `RequiresMigration` flag, but relevant)

- **First own migration of an application (#29979):** a migration module without a stored version
  in the DB is treated as new and its migrations are skipped. If the application adds its first own
  migration (e.g. for #30051) against an existing database, put the application module into
  `minimum-modules` of the `MigrationService` configuration. Since alpha12 the versions of all
  configured migration modules are stored on every start, and skipped modules are logged with this hint.
- **`update-class` with `new-name` in another module (#29980)** now also moves the class's association
  types; an application workaround (manual SQL `UPDATE META_ELEMENT`) can be removed.
- **`invert-link-table` on MySQL (#29931)** was destroying links (both ends became the destination). If
  an application ran this processor on MySQL with an earlier version, check the data.
- **Configured `` (#29742)** now take effect inside the application configuration — check for
  changed behavior if the application defines ``.
- **Configuration layering (#29865):** removing a list entry (`config:operation="remove"`) whose key the
  underlying layers do not (or no longer) define now fails the application start → remove such stale
  removals.
- **Commits of other threads (#29952):** windows follow foreign commits without configuration; this
  replaces `CommitSource` and the refresh part of `AgentViewRefreshService` — remove own wiring of those.

---

## 8. Verification checklist

1. `mvn clean install` of the application with JDK 21 (enable tests if possible: `TestAll` contains the
   polymorphic-wildcard conformance check and `TestViewScripts`).
2. Start the application (local H2: `devel-secrets.xml` in `metaConf.txt`, or set `h2_passwd`).
3. Read the startup log: no configuration errors (removed modules, `process-all-mails`,
   `llm-configuration`, undeclared operations, stale `config:operation="remove"`).
4. Log in, open every React view (views are validated on load: lambda heads, ids, frames,
   `` contents) and every classic layout with config forms.
5. Check custom styling of React controls visually (calendar, kanban, dashboard, media, color/icon
   pickers, tooltips, rich-text editor, charts).
6. Check access: users without admin rights see the expected navigation entries, tabs, tiles and commands.
7. Report to the user every step that was skipped, needed a decision, or touches data (group rename,
   SafeHTML content, mail daemon behavior).