diff --git a/packages/devextreme/js/__internal/core/m_action.ts b/packages/devextreme/js/__internal/core/m_action.ts
index e8e2a5622fe7..13690cdfc35b 100644
--- a/packages/devextreme/js/__internal/core/m_action.ts
+++ b/packages/devextreme/js/__internal/core/m_action.ts
@@ -144,11 +144,11 @@ const createValidatorByTargetElement = (condition) => (e) => {
 // @ts-expect-error expect name and executor
 Action.registerExecutor({
   disabled: {
-    validate: createValidatorByTargetElement(($target) => $target.is('@js/coredx-state-disabled, .dx-state-disabled *')),
+    validate: createValidatorByTargetElement(($target) => $target.is('.dx-state-disabled, .dx-state-disabled *')),
   },
 
   readOnly: {
-    validate: createValidatorByTargetElement(($target) => $target.is('@js/coredx-state-readonly, .dx-state-readonly *:not(.dx-state-independent)')),
+    validate: createValidatorByTargetElement(($target) => $target.is('.dx-state-readonly, .dx-state-readonly *:not(.dx-state-independent)')),
   },
   undefined: {
     execute: (e) => {
diff --git a/packages/devextreme/js/__internal/core/m_config.ts b/packages/devextreme/js/__internal/core/m_config.ts
index 61237342052b..4532433c9216 100644
--- a/packages/devextreme/js/__internal/core/m_config.ts
+++ b/packages/devextreme/js/__internal/core/m_config.ts
@@ -8,8 +8,8 @@ const config = {
   defaultCurrency: 'USD',
   defaultUseCurrencyAccountingStyle: true,
   oDataFilterToLower: true,
-  serverDecimalSeparator: '@js/core',
-  decimalSeparator: '@js/core',
+  serverDecimalSeparator: '.',
+  decimalSeparator: '.',
   thousandsSeparator: ',',
   forceIsoDateParsing: true,
   wrapActionsBeforeExecute: true,
diff --git a/packages/devextreme/js/__internal/core/utils/m_date_serialization.ts b/packages/devextreme/js/__internal/core/utils/m_date_serialization.ts
index 45792ca211ab..09ffd2877370 100644
--- a/packages/devextreme/js/__internal/core/utils/m_date_serialization.ts
+++ b/packages/devextreme/js/__internal/core/utils/m_date_serialization.ts
@@ -10,7 +10,7 @@ const DATETIME_SERIALIZATION_FORMAT = 'yyyy/MM/dd HH:mm:ss';
 const ISO8601_PATTERN = /^(\d{4,})(-)?(\d{2})(-)?(\d{2})(?:T(\d{2})(:)?(\d{2})?(:)?(\d{2}(?:\.(\d{1,3})\d*)?)?)?(Z|([+-])(\d{2})(:)?(\d{2})?)?$/;
 const ISO8601_TIME_PATTERN = /^(\d{2}):(\d{2})(:(\d{2}))?$/;
 
-const ISO8601_PATTERN_PARTS = ['', 'yyyy', '', 'MM', '', 'dd', 'THH', '', 'mm', '', 'ss', '@js/core/utilsSSS'];
+const ISO8601_PATTERN_PARTS = ['', 'yyyy', '', 'MM', '', 'dd', 'THH', '', 'mm', '', 'ss', '.SSS'];
 const DATE_SERIALIZATION_PATTERN = /^(\d{4})\/(\d{2})\/(\d{2})$/;
 
 const MILLISECOND_LENGHT = 3;
diff --git a/packages/devextreme/js/__internal/core/utils/m_error.ts b/packages/devextreme/js/__internal/core/utils/m_error.ts
index 92ca1af56213..252f307ffbb6 100644
--- a/packages/devextreme/js/__internal/core/utils/m_error.ts
+++ b/packages/devextreme/js/__internal/core/utils/m_error.ts
@@ -4,7 +4,7 @@ import { extend } from '@js/core/utils/extend';
 import { format } from '@js/core/utils/string';
 import { version } from '@js/core/version';
 
-const ERROR_URL = `https://js.devexpress.com/error/${version.split('@js/core/utils').slice(0, 2).join('_')}/`;
+const ERROR_URL = `https://js.devexpress.com/error/${version.split('.').slice(0, 2).join('_')}/`;
 
 function error(baseErrors, errors?) {
   const exports = {
diff --git a/packages/devextreme/js/__internal/core/utils/m_inflector.ts b/packages/devextreme/js/__internal/core/utils/m_inflector.ts
index f8f417be6412..6f077391e7c0 100644
--- a/packages/devextreme/js/__internal/core/utils/m_inflector.ts
+++ b/packages/devextreme/js/__internal/core/utils/m_inflector.ts
@@ -55,7 +55,7 @@ export const captionize = function (name) {
   for (i = 0; i < name.length; i++) {
     char = name.charAt(i);
     isNewWord = (char === char.toUpperCase() && char !== '-' && char !== ')' && char !== '/') || (char in DIGIT_CHARS);
-    if (char === '_' || char === '@js/core/utils') {
+    if (char === '_' || char === '.') {
       char = ' ';
       isNewWord = true;
     } else if (i === 0) {
diff --git a/packages/devextreme/js/__internal/core/utils/m_math.ts b/packages/devextreme/js/__internal/core/utils/m_math.ts
index f259edf09843..f4745378b13e 100644
--- a/packages/devextreme/js/__internal/core/utils/m_math.ts
+++ b/packages/devextreme/js/__internal/core/utils/m_math.ts
@@ -54,7 +54,7 @@ function isEdgeBug() {
 
 function adjust(value, interval) {
   let precision = getPrecision(interval || 0) + 2;
-  const separatedValue = value.toString().split('@js/core/utils');
+  const separatedValue = value.toString().split('.');
   const sourceValue = value;
   const absValue = Math.abs(value);
   let separatedAdjustedValue;
@@ -76,7 +76,7 @@ function adjust(value, interval) {
   precision = (isEdgeBug() && (getExponent(value) > 6)) || precision > 7 ? 15 : 7; // fix toPrecision() bug in Edge (T570217)
 
   if (!isExponentValue) {
-    separatedAdjustedValue = parseFloat(value.toPrecision(precision)).toString().split('@js/core/utils');
+    separatedAdjustedValue = parseFloat(value.toPrecision(precision)).toString().split('.');
     if (separatedAdjustedValue[0] === integerPart.toString()) {
       return parseFloat(`${separatedValue[0]}.${separatedAdjustedValue[1]}`);
     }
@@ -87,11 +87,11 @@ function adjust(value, interval) {
 function getPrecision(value) {
   const str = value.toString();
 
-  if (str.indexOf('@js/core/utils') < 0) {
+  if (str.indexOf('.') < 0) {
     return 0;
   }
 
-  const mantissa = str.split('@js/core/utils');
+  const mantissa = str.split('.');
   const positionOfDelimiter = mantissa[1].indexOf('e');
 
   return positionOfDelimiter >= 0 ? positionOfDelimiter : mantissa[1].length;
@@ -175,7 +175,7 @@ function getRemainderByDivision(dividend, divider, digitsCount) {
 function getExponentLength(value) {
   const valueString = value.toString();
 
-  return valueString.split('@js/core/utils')[1]?.length
+  return valueString.split('.')[1]?.length
         || parseInt(valueString.split('e-')[1], 10)
         || 0;
 }
diff --git a/packages/devextreme/js/__internal/core/utils/m_view_port.ts b/packages/devextreme/js/__internal/core/utils/m_view_port.ts
index e41b7dc38312..7c21fb978506 100644
--- a/packages/devextreme/js/__internal/core/utils/m_view_port.ts
+++ b/packages/devextreme/js/__internal/core/utils/m_view_port.ts
@@ -24,7 +24,7 @@ const value = (function (...args) {
 }());
 
 ready(() => {
-  value('@js/core/utilsdx-viewport');
+  value('.dx-viewport');
 });
 
 export {