diff --git a/README.md b/README.md
index 01aba26..1e14a2a 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ A FullCalendar component for Angular.
 
 ## Supported Angular Versions
 
-`@talentia/fullcalendar` version `4.4.12` supports Angular 18.
+`@talentia/fullcalendar` version `4.4.13` supports Angular 18.
 
 # FullCalendar Angular Component [![Build Status](https://travis-ci.com/fullcalendar/fullcalendar-angular.svg?branch=master)](https://travis-ci.com/fullcalendar/fullcalendar-angular)
 
diff --git a/package-lock.json b/package-lock.json
index b7cc834..48eb66c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "fullcalendar",
-  "version": "4.4.12",
+  "version": "4.4.13",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "fullcalendar",
-      "version": "4.4.12",
+      "version": "4.4.13",
       "dependencies": {
         "@angular/animations": "19.2.15",
         "@angular/common": "19.2.15",
diff --git a/package.json b/package.json
index 980238b..fa06e0e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fullcalendar",
-  "version": "4.4.12",
+  "version": "4.4.13",
   "scripts": {
     "ng": "ng",
     "build": "npm-run-all -s clean:build build:prod",
diff --git a/projects/fullcalendar/README.md b/projects/fullcalendar/README.md
index 01aba26..1e14a2a 100644
--- a/projects/fullcalendar/README.md
+++ b/projects/fullcalendar/README.md
@@ -5,7 +5,7 @@ A FullCalendar component for Angular.
 
 ## Supported Angular Versions
 
-`@talentia/fullcalendar` version `4.4.12` supports Angular 18.
+`@talentia/fullcalendar` version `4.4.13` supports Angular 18.
 
 # FullCalendar Angular Component [![Build Status](https://travis-ci.com/fullcalendar/fullcalendar-angular.svg?branch=master)](https://travis-ci.com/fullcalendar/fullcalendar-angular)
 
diff --git a/projects/fullcalendar/package.json b/projects/fullcalendar/package.json
index 2653b62..c66d8ca 100644
--- a/projects/fullcalendar/package.json
+++ b/projects/fullcalendar/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@talentia/fullcalendar",
-  "version": "4.4.12",
+  "version": "4.4.13",
   "title": "FullCalendar Angular Component",
   "description": "A FullCalendar component for Angular",
   "license": "MIT",
diff --git a/projects/fullcalendar/src/lib/fullcalendar.component.ts b/projects/fullcalendar/src/lib/fullcalendar.component.ts
index ab195ac..d69b155 100644
--- a/projects/fullcalendar/src/lib/fullcalendar.component.ts
+++ b/projects/fullcalendar/src/lib/fullcalendar.component.ts
@@ -1,5 +1,5 @@
 import deepEqual from 'fast-deep-equal';
-import { Component, ElementRef, SimpleChanges, AfterViewInit, DoCheck, OnChanges, AfterContentChecked, OnDestroy, input, output, inject } from '@angular/core';
+import { Component, ElementRef, SimpleChanges, AfterViewInit, DoCheck, OnChanges, AfterContentChecked, OnDestroy, inject, Input, Output, EventEmitter } from '@angular/core';
 import { Calendar, BusinessHoursInput, ConstraintInput, EventApi, PluginDef } from '@fullcalendar/core';
 import { INPUT_NAMES, INPUT_IS_DEEP, OUTPUT_NAMES } from './fullcalendar-options';
 import { deepCopy } from './utils';
@@ -31,8 +31,7 @@ type EventSourceSuccessResponseHandler = any;
 export class FullCalendarComponent implements AfterViewInit, DoCheck, OnChanges, AfterContentChecked, OnDestroy {
   private element = inject(ElementRef);
 
-
-  readonly deepChangeDetection = input<boolean>();
+  @Input() deepChangeDetection?: boolean;
 
   private calendar: Calendar;
   private dirtyProps: any = {};
@@ -58,7 +57,7 @@ export class FullCalendarComponent implements AfterViewInit, DoCheck, OnChanges,
 
       if (inputVal !== undefined) { // unfortunately FC chokes when some props are set to undefined
 
-        if (this.deepChangeDetection() && INPUT_IS_DEEP[inputName]) {
+        if (this.deepChangeDetection && INPUT_IS_DEEP[inputName]) {
           inputVal = deepCopy(inputVal);
           this.deepCopies[inputName] = inputVal; // side effect!
         }
@@ -75,7 +74,7 @@ export class FullCalendarComponent implements AfterViewInit, DoCheck, OnChanges,
   called much more often than ngOnChanges.
   */
   ngDoCheck() {
-    if (this.calendar && this.deepChangeDetection()) { // not the initial render AND we do deep-mutation checks
+    if (this.calendar && this.deepChangeDetection) { // not the initial render AND we do deep-mutation checks
       const { deepCopies } = this;
 
       for (const inputName in INPUT_IS_DEEP) {
@@ -139,169 +138,169 @@ export class FullCalendarComponent implements AfterViewInit, DoCheck, OnChanges,
   since the properties will be programmatically generated, better to put them after.
   */
 
-  readonly header = input<boolean | ToolbarInput>();
-  readonly footer = input<boolean | ToolbarInput>();
-  readonly customButtons = input<{ [name: string]: CustomButtonInput }>();
-  readonly buttonIcons = input<boolean | ButtonIconsInput>();
-  readonly themeSystem = input<'standard' | string>();
-  readonly bootstrapFontAwesome = input<boolean | ButtonIconsInput>();
-  readonly firstDay = input<number>();
-  readonly dir = input<'ltr' | 'rtl' | 'auto'>();
-  readonly weekends = input<boolean>();
-  readonly hiddenDays = input<number[]>();
-  readonly fixedWeekCount = input<boolean>();
-  readonly weekNumbers = input<boolean>();
-  readonly weekNumbersWithinDays = input<boolean>();
-  readonly weekNumberCalculation = input<'local' | 'ISO' | ((m: Date) => number)>();
-  readonly businessHours = input<BusinessHoursInput>();
-  readonly showNonCurrentDates = input<boolean>();
-  readonly height = input<number | 'auto' | 'parent' | (() => number)>();
-  readonly contentHeight = input<number | 'auto' | (() => number)>();
-  readonly aspectRatio = input<number>();
-  readonly handleWindowResize = input<boolean>();
-  readonly windowResizeDelay = input<number>();
-  readonly eventLimit = input<boolean | number>();
-  readonly eventLimitClick = input<'popover' | 'week' | 'day' | string | ((cellinfo: CellInfo, jsevent: Event) => void)>();
-  readonly timeZone = input<string | boolean>();
-  readonly now = input<DateInput | (() => DateInput)>();
-  readonly defaultView = input<string>();
-  readonly allDaySlot = input<boolean>();
-  readonly allDayText = input<string>();
-  readonly slotDuration = input<DurationInput>();
-  readonly slotLabelFormat = input<FormatterInput>();
-  readonly slotLabelInterval = input<DurationInput>();
-  readonly snapDuration = input<DurationInput>();
-  readonly scrollTime = input<DurationInput>();
-  readonly minTime = input<DurationInput>();
-  readonly maxTime = input<DurationInput>();
-  readonly slotEventOverlap = input<boolean>();
-  readonly listDayFormat = input<FormatterInput | boolean>();
-  readonly listDayAltFormat = input<FormatterInput | boolean>();
-  readonly noEventsMessage = input<string>();
-  readonly defaultDate = input<DateInput>();
-  readonly nowIndicator = input<boolean>();
-  readonly visibleRange = input<((currentDate: Date) => DateRangeInput) | DateRangeInput>();
-  readonly validRange = input<DateRangeInput>();
-  readonly dateIncrement = input<DurationInput>();
-  readonly dateAlignment = input<string>();
-  readonly duration = input<DurationInput>();
-  readonly dayCount = input<number>();
-  readonly locales = input<RawLocale[]>();
-  readonly locale = input<LocaleSingularArg>();
-  readonly eventTimeFormat = input<FormatterInput>();
-  readonly columnHeader = input<boolean>();
-  readonly columnHeaderFormat = input<FormatterInput>();
-  readonly columnHeaderText = input<string | ((date: DateInput) => string)>();
-  readonly columnHeaderHtml = input<string | ((date: DateInput) => string)>();
-  readonly titleFormat = input<FormatterInput>();
-  readonly weekLabel = input<string>();
-  readonly displayEventTime = input<boolean>();
-  readonly displayEventEnd = input<boolean>();
-  readonly eventLimitText = input<string | ((eventCnt: number) => string)>();
-  readonly dayPopoverFormat = input<FormatterInput>();
-  readonly navLinks = input<boolean>();
-  readonly selectable = input<boolean>();
-  readonly selectMirror = input<boolean>();
-  readonly unselectAuto = input<boolean>();
-  readonly unselectCancel = input<string>();
-  readonly defaultAllDayEventDuration = input<DurationInput>();
-  readonly defaultTimedEventDuration = input<DurationInput>();
-  readonly cmdFormatter = input<string>();
-  readonly defaultRangeSeparator = input<string>();
-  readonly selectConstraint = input<ConstraintInput>();
-  readonly selectOverlap = input<boolean | OverlapFunc>();
-  readonly selectAllow = input<AllowFunc>();
-  readonly selectMinDistance = input<number>();
-  readonly editable = input<boolean>();
-  readonly eventStartEditable = input<boolean>();
-  readonly eventDurationEditable = input<boolean>();
-  readonly eventConstraint = input<ConstraintInput>();
-  readonly eventOverlap = input<boolean | OverlapFunc>();
-  readonly eventAllow = input<AllowFunc>();
-  readonly eventClassName = input<string[] | string>();
-  readonly eventClassNames = input<string[] | string>();
-  readonly eventBackgroundColor = input<string>();
-  readonly eventBorderColor = input<string>();
-  readonly eventTextColor = input<string>();
-  readonly eventColor = input<string>();
-  readonly events = input<EventSourceInput>();
-  readonly eventSources = input<EventSourceInput[]>();
-  readonly allDayDefault = input<boolean>();
-  readonly startParam = input<string>();
-  readonly endParam = input<string>();
-  readonly lazyFetching = input<boolean>();
-  readonly nextDayThreshold = input<DurationInput>();
-  readonly eventOrder = input<string | ((a: EventApi, b: EventApi) => number) | (string | ((a: EventApi, b: EventApi) => number))[]>();
-  readonly rerenderDelay = input<number | null>();
-  readonly dragRevertDuration = input<number>();
-  readonly dragScroll = input<boolean>();
-  readonly longPressDelay = input<number>();
-  readonly eventLongPressDelay = input<number>();
-  readonly droppable = input<boolean>();
-  readonly dropAccept = input<string | ((draggable: any) => boolean)>();
-  readonly eventDataTransform = input<EventInputTransformer>();
-  readonly allDayMaintainDuration = input<boolean>();
-  readonly eventResizableFromStart = input<boolean>();
-  readonly timeGridEventMinHeight = input<number>();
-  readonly allDayHtml = input<string>();
-  readonly eventDragMinDistance = input<number>();
-  readonly eventSourceFailure = input<EventSourceErrorResponseHandler>();
-  readonly eventSourceSuccess = input<EventSourceSuccessResponseHandler>();
-  readonly forceEventDuration = input<boolean>();
-  readonly progressiveEventRendering = input<boolean>();
-  readonly selectLongPressDelay = input<number>();
-  readonly timeZoneParam = input<string>();
-  readonly titleRangeSeparator = input<string>();
+  @Input() header?: boolean | ToolbarInput;
+  @Input() footer?: boolean | ToolbarInput;
+  @Input() customButtons?: { [name: string]: CustomButtonInput };
+  @Input() buttonIcons?: boolean | ButtonIconsInput;
+  @Input() themeSystem?: 'standard' | string;
+  @Input() bootstrapFontAwesome?: boolean | ButtonIconsInput;
+  @Input() firstDay?: number;
+  @Input() dir?: 'ltr' | 'rtl' | 'auto';
+  @Input() weekends?: boolean;
+  @Input() hiddenDays?: number[];
+  @Input() fixedWeekCount?: boolean;
+  @Input() weekNumbers?: boolean;
+  @Input() weekNumbersWithinDays?: boolean;
+  @Input() weekNumberCalculation?: 'local' | 'ISO' | ((m: Date) => number);
+  @Input() businessHours?: BusinessHoursInput;
+  @Input() showNonCurrentDates?: boolean;
+  @Input() height?: number | 'auto' | 'parent' | (() => number);
+  @Input() contentHeight?: number | 'auto' | (() => number);
+  @Input() aspectRatio?: number;
+  @Input() handleWindowResize?: boolean;
+  @Input() windowResizeDelay?: number;
+  @Input() eventLimit?: boolean | number;
+  @Input() eventLimitClick?: 'popover' | 'week' | 'day' | string | ((cellinfo: CellInfo, jsevent: Event) => void);
+  @Input() timeZone?: string | boolean;
+  @Input() now?: DateInput | (() => DateInput);
+  @Input() defaultView?: string;
+  @Input() allDaySlot?: boolean;
+  @Input() allDayText?: string;
+  @Input() slotDuration?: DurationInput;
+  @Input() slotLabelFormat?: FormatterInput;
+  @Input() slotLabelInterval?: DurationInput;
+  @Input() snapDuration?: DurationInput;
+  @Input() scrollTime?: DurationInput;
+  @Input() minTime?: DurationInput;
+  @Input() maxTime?: DurationInput;
+  @Input() slotEventOverlap?: boolean;
+  @Input() listDayFormat?: FormatterInput | boolean;
+  @Input() listDayAltFormat?: FormatterInput | boolean;
+  @Input() noEventsMessage?: string;
+  @Input() defaultDate?: DateInput;
+  @Input() nowIndicator?: boolean;
+  @Input() visibleRange?: ((currentDate: Date) => DateRangeInput) | DateRangeInput;
+  @Input() validRange?: DateRangeInput;
+  @Input() dateIncrement?: DurationInput;
+  @Input() dateAlignment?: string;
+  @Input() duration?: DurationInput;
+  @Input() dayCount?: number;
+  @Input() locales?: RawLocale[];
+  @Input() locale?: LocaleSingularArg;
+  @Input() eventTimeFormat?: FormatterInput;
+  @Input() columnHeader?: boolean;
+  @Input() columnHeaderFormat?: FormatterInput;
+  @Input() columnHeaderText?: string | ((date: DateInput) => string);
+  @Input() columnHeaderHtml?: string | ((date: DateInput) => string);
+  @Input() titleFormat?: FormatterInput;
+  @Input() weekLabel?: string;
+  @Input() displayEventTime?: boolean;
+  @Input() displayEventEnd?: boolean;
+  @Input() eventLimitText?: string | ((eventCnt: number) => string);
+  @Input() dayPopoverFormat?: FormatterInput;
+  @Input() navLinks?: boolean;
+  @Input() selectable?: boolean;
+  @Input() selectMirror?: boolean;
+  @Input() unselectAuto?: boolean;
+  @Input() unselectCancel?: string;
+  @Input() defaultAllDayEventDuration?: DurationInput;
+  @Input() defaultTimedEventDuration?: DurationInput;
+  @Input() cmdFormatter?: string;
+  @Input() defaultRangeSeparator?: string;
+  @Input() selectConstraint?: ConstraintInput;
+  @Input() selectOverlap?: boolean | OverlapFunc;
+  @Input() selectAllow?: AllowFunc;
+  @Input() selectMinDistance?: number;
+  @Input() editable?: boolean;
+  @Input() eventStartEditable?: boolean;
+  @Input() eventDurationEditable?: boolean;
+  @Input() eventConstraint?: ConstraintInput;
+  @Input() eventOverlap?: boolean | OverlapFunc;
+  @Input() eventAllow?: AllowFunc;
+  @Input() eventClassName?: string[] | string;
+  @Input() eventClassNames?: string[] | string;
+  @Input() eventBackgroundColor?: string;
+  @Input() eventBorderColor?: string;
+  @Input() eventTextColor?: string;
+  @Input() eventColor?: string;
+  @Input() events?: EventSourceInput;
+  @Input() eventSources?: EventSourceInput[];
+  @Input() allDayDefault?: boolean;
+  @Input() startParam?: string;
+  @Input() endParam?: string;
+  @Input() lazyFetching?: boolean;
+  @Input() nextDayThreshold?: DurationInput;
+  @Input() eventOrder?: string | ((a: EventApi, b: EventApi) => number) | (string | ((a: EventApi, b: EventApi) => number))[];
+  @Input() rerenderDelay?: number | null;
+  @Input() dragRevertDuration?: number;
+  @Input() dragScroll?: boolean;
+  @Input() longPressDelay?: number;
+  @Input() eventLongPressDelay?: number;
+  @Input() droppable?: boolean;
+  @Input() dropAccept?: string | ((draggable: any) => boolean);
+  @Input() eventDataTransform?: EventInputTransformer;
+  @Input() allDayMaintainDuration?: boolean;
+  @Input() eventResizableFromStart?: boolean;
+  @Input() timeGridEventMinHeight?: number;
+  @Input() allDayHtml?: string;
+  @Input() eventDragMinDistance?: number;
+  @Input() eventSourceFailure?: EventSourceErrorResponseHandler;
+  @Input() eventSourceSuccess?: EventSourceSuccessResponseHandler;
+  @Input() forceEventDuration?: boolean;
+  @Input() progressiveEventRendering?: boolean;
+  @Input() selectLongPressDelay?: number;
+  @Input() timeZoneParam?: string;
+  @Input() titleRangeSeparator?: string;
   // compound OptionsInput...
-  readonly buttonText = input<ButtonTextCompoundInput>();
-  readonly views = input<{ [viewId: string]: ViewOptionsInput }>();
-  readonly plugins = input<(PluginDef | string)[]>();
+  @Input() buttonText?: ButtonTextCompoundInput;
+  @Input() views?: { [viewId: string]: ViewOptionsInput };
+  @Input() plugins?: (PluginDef | string)[];
   // scheduler...
-  readonly schedulerLicenseKey = input<string>();
-  readonly resources = input<any>();
-  readonly resourceLabelText = input<string>();
-  readonly resourceOrder = input<any>();
-  readonly filterResourcesWithEvents = input<any>();
-  readonly resourceText = input<any>();
-  readonly resourceGroupField = input<any>();
-  readonly resourceGroupText = input<any>();
-  readonly resourceAreaWidth = input<any>();
-  readonly resourceColumns = input<any>();
-  readonly resourcesInitiallyExpanded = input<any>();
-  readonly slotWidth = input<any>();
-  readonly datesAboveResources = input<any>();
-  readonly googleCalendarApiKey = input<string>();
-  readonly refetchResourcesOnNavigate = input<boolean>();
-  readonly eventResourceEditable = input<boolean>();
+  @Input() schedulerLicenseKey?: string;
+  @Input() resources?: any;
+  @Input() resourceLabelText?: string;
+  @Input() resourceOrder?: any;
+  @Input() filterResourcesWithEvents?: any;
+  @Input() resourceText?: any;
+  @Input() resourceGroupField?: any;
+  @Input() resourceGroupText?: any;
+  @Input() resourceAreaWidth?: any;
+  @Input() resourceColumns?: any;
+  @Input() resourcesInitiallyExpanded?: any;
+  @Input() slotWidth?: any;
+  @Input() datesAboveResources?: any;
+  @Input() googleCalendarApiKey?: string;
+  @Input() refetchResourcesOnNavigate?: boolean;
+  @Input() eventResourceEditable?: boolean;
 
-  readonly windowResize = output<any>();
-  readonly dateClick = output<any>();
-  readonly eventClick = output<any>();
-  readonly eventMouseEnter = output<any>();
-  readonly eventMouseLeave = output<any>();
-  readonly select = output<any>();
-  readonly unselect = output<any>();
-  readonly loading = output<any>();
-  readonly eventPositioned = output<any>();
-  readonly eventDragStart = output<any>();
-  readonly eventDragStop = output<any>();
-  readonly eventDrop = output<any>();
-  readonly eventResizeStart = output<any>();
-  readonly eventResizeStop = output<any>();
-  readonly eventResize = output<any>();
-  readonly drop = output<any>();
-  readonly eventReceive = output<any>();
-  readonly eventLeave = output<any>();
-  readonly _destroyed = output<any>();
-  readonly navLinkDayClick = output<any>();
-  readonly navLinkWeekClick = output<any>();
+  @Output() windowResize = new EventEmitter<any>();
+  @Output() dateClick = new EventEmitter<any>();
+  @Output() eventClick = new EventEmitter<any>();
+  @Output() eventMouseEnter = new EventEmitter<any>();
+  @Output() eventMouseLeave = new EventEmitter<any>();
+  @Output() select = new EventEmitter<any>();
+  @Output() unselect = new EventEmitter<any>();
+  @Output() loading = new EventEmitter<any>();
+  @Output() eventPositioned = new EventEmitter<any>();
+  @Output() eventDragStart = new EventEmitter<any>();
+  @Output() eventDragStop = new EventEmitter<any>();
+  @Output() eventDrop = new EventEmitter<any>();
+  @Output() eventResizeStart = new EventEmitter<any>();
+  @Output() eventResizeStop = new EventEmitter<any>();
+  @Output() eventResize = new EventEmitter<any>();
+  @Output() drop = new EventEmitter<any>();
+  @Output() eventReceive = new EventEmitter<any>();
+  @Output() eventLeave = new EventEmitter<any>();
+  @Output() _destroyed = new EventEmitter<any>();
+  @Output() navLinkDayClick = new EventEmitter<any>();
+  @Output() navLinkWeekClick = new EventEmitter<any>();
   // TODO: make these inputs...
-  readonly viewSkeletonRender = output<any>();
-  readonly viewSkeletonDestroy = output<any>();
-  readonly datesRender = output<any>();
-  readonly datesDestroy = output<any>();
-  readonly dayRender = output<any>();
-  readonly eventRender = output<any>();
-  readonly eventDestroy = output<any>();
-  readonly resourceRender = output<any>();
+  @Output() viewSkeletonRender = new EventEmitter<any>();
+  @Output() viewSkeletonDestroy = new EventEmitter<any>();
+  @Output() datesRender = new EventEmitter<any>();
+  @Output() datesDestroy = new EventEmitter<any>();
+  @Output() dayRender = new EventEmitter<any>();
+  @Output() eventRender = new EventEmitter<any>();
+  @Output() eventDestroy = new EventEmitter<any>();
+  @Output() resourceRender = new EventEmitter<any>();
 }