diff --git a/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/ConfirmSwitchEnv.js b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/ConfirmSwitchEnv.js
new file mode 100644
index 000000000..715bf9e75
--- /dev/null
+++ b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/ConfirmSwitchEnv.js
@@ -0,0 +1,42 @@
+import React from 'react';
+import { IconAlertTriangle } from '@tabler/icons';
+import Modal from 'components/Modal';
+import { createPortal } from 'react-dom';
+
+const ConfirmSwitchEnv = ({ onCancel }) => {
+  return createPortal(
+    <Modal
+      size="md"
+      title="Unsaved changes"
+      confirmText="Save and Close"
+      cancelText="Close without saving"
+      disableEscapeKey={true}
+      disableCloseOnOutsideClick={true}
+      closeModalFadeTimeout={150}
+      handleCancel={onCancel}
+      onClick={(e) => {
+        e.stopPropagation();
+        e.preventDefault();
+      }}
+      hideFooter={true}
+    >
+      <div className="flex items-center font-normal">
+        <IconAlertTriangle size={32} strokeWidth={1.5} className="text-yellow-600" />
+        <h1 className="ml-2 text-lg font-semibold">Hold on..</h1>
+      </div>
+      <div className="font-normal mt-4">You have unsaved changes in this environment.</div>
+
+      <div className="flex justify-between mt-6">
+        <div>
+          <button className="btn btn-sm btn-danger" onClick={onCancel}>
+            Close
+          </button>
+        </div>
+        <div></div>
+      </div>
+    </Modal>,
+    document.body
+  );
+};
+
+export default ConfirmSwitchEnv;
diff --git a/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/EnvironmentVariables/index.js b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/EnvironmentVariables/index.js
index 1220b193a..1f36d05ea 100644
--- a/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/EnvironmentVariables/index.js
+++ b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/EnvironmentVariables/index.js
@@ -1,19 +1,19 @@
 import React from 'react';
-import toast from 'react-hot-toast';
-import cloneDeep from 'lodash/cloneDeep';
 import { IconTrash } from '@tabler/icons';
 import { useTheme } from 'providers/Theme';
 import { useDispatch } from 'react-redux';
-import { saveEnvironment } from 'providers/ReduxStore/slices/collections/actions';
 import SingleLineEditor from 'components/SingleLineEditor';
 import StyledWrapper from './StyledWrapper';
+import { uuid } from 'utils/common';
+import { maskInputValue } from 'utils/collections';
 import { useFormik } from 'formik';
 import * as Yup from 'yup';
-import { uuid } from 'utils/common';
 import { variableNameRegex } from 'utils/common/regex';
-import { maskInputValue } from 'utils/collections';
+import { saveEnvironment } from 'providers/ReduxStore/slices/collections/actions';
+import cloneDeep from 'lodash/cloneDeep';
+import toast from 'react-hot-toast';
 
-const EnvironmentVariables = ({ environment, collection }) => {
+const EnvironmentVariables = ({ environment, collection, setIsModified, originalEnvironmentVariables }) => {
   const dispatch = useDispatch();
   const { storedTheme } = useTheme();
 
@@ -46,11 +46,17 @@ const EnvironmentVariables = ({ environment, collection }) => {
         .then(() => {
           toast.success('Changes saved successfully');
           formik.resetForm({ values });
+          setIsModified(false);
         })
         .catch(() => toast.error('An error occurred while saving the changes'));
     }
   });
 
+  // Effect to track modifications.
+  React.useEffect(() => {
+    setIsModified(formik.dirty);
+  }, [formik.dirty]);
+
   const ErrorMessage = ({ name }) => {
     const meta = formik.getFieldMeta(name);
     if (!meta.error) {
@@ -80,6 +86,10 @@ const EnvironmentVariables = ({ environment, collection }) => {
     formik.setValues(formik.values.filter((variable) => variable.uid !== id));
   };
 
+  const handleReset = () => {
+    formik.resetForm({ originalEnvironmentVariables });
+  };
+
   return (
     <StyledWrapper className="w-full mt-6 mb-6">
       <div className="h-[50vh] overflow-y-auto w-full">
@@ -162,6 +172,9 @@ const EnvironmentVariables = ({ environment, collection }) => {
         <button type="submit" className="submit btn btn-md btn-secondary mt-2" onClick={formik.handleSubmit}>
           Save
         </button>
+        <button type="submit" className="ml-2 px-1 submit btn btn-md btn-secondary mt-2" onClick={handleReset}>
+          Reset
+        </button>
       </div>
     </StyledWrapper>
   );
diff --git a/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/index.js b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/index.js
index 8f58282e2..f9fca74ec 100644
--- a/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/index.js
+++ b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/EnvironmentDetails/index.js
@@ -5,7 +5,7 @@ import DeleteEnvironment from '../../DeleteEnvironment';
 import RenameEnvironment from '../../RenameEnvironment';
 import EnvironmentVariables from './EnvironmentVariables';
 
-const EnvironmentDetails = ({ environment, collection }) => {
+const EnvironmentDetails = ({ environment, collection, setIsModified }) => {
   const [openEditModal, setOpenEditModal] = useState(false);
   const [openDeleteModal, setOpenDeleteModal] = useState(false);
   const [openCopyModal, setOpenCopyModal] = useState(false);
@@ -38,7 +38,7 @@ const EnvironmentDetails = ({ environment, collection }) => {
       </div>
 
       <div>
-        <EnvironmentVariables key={environment.uid} environment={environment} collection={collection} />
+        <EnvironmentVariables environment={environment} collection={collection} setIsModified={setIsModified} />
       </div>
     </div>
   );
diff --git a/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/index.js b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/index.js
index 7dba5987e..4517bd8d3 100644
--- a/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/index.js
+++ b/packages/bruno-app/src/components/Environments/EnvironmentSettings/EnvironmentList/index.js
@@ -1,4 +1,4 @@
-import React, { useEffect, useState, forwardRef, useRef } from 'react';
+import React, { useEffect, useState } from 'react';
 import { findEnvironmentInCollection } from 'utils/collections';
 import usePrevious from 'hooks/usePrevious';
 import EnvironmentDetails from './EnvironmentDetails';
@@ -7,19 +7,23 @@ import { IconDownload, IconShieldLock } from '@tabler/icons';
 import ImportEnvironment from '../ImportEnvironment';
 import ManageSecrets from '../ManageSecrets';
 import StyledWrapper from './StyledWrapper';
+import ConfirmSwitchEnv from './ConfirmSwitchEnv';
 
-const EnvironmentList = ({ collection }) => {
+const EnvironmentList = ({ selectedEnvironment, setSelectedEnvironment, collection, isModified, setIsModified }) => {
   const { environments } = collection;
-  const [selectedEnvironment, setSelectedEnvironment] = useState(null);
   const [openCreateModal, setOpenCreateModal] = useState(false);
   const [openImportModal, setOpenImportModal] = useState(false);
   const [openManageSecretsModal, setOpenManageSecretsModal] = useState(false);
 
+  const [switchEnvConfirmClose, setSwitchEnvConfirmClose] = useState(false);
+  const [originalEnvironmentVariables, setOriginalEnvironmentVariables] = useState([]);
+
   const envUids = environments ? environments.map((env) => env.uid) : [];
   const prevEnvUids = usePrevious(envUids);
 
   useEffect(() => {
     if (selectedEnvironment) {
+      setOriginalEnvironmentVariables(selectedEnvironment.variables);
       return;
     }
 
@@ -32,7 +36,6 @@ const EnvironmentList = ({ collection }) => {
   }, [collection, environments, selectedEnvironment]);
 
   useEffect(() => {
-    // check env add
     if (prevEnvUids && prevEnvUids.length && envUids.length > prevEnvUids.length) {
       const newEnv = environments.find((env) => !prevEnvUids.includes(env.uid));
       if (newEnv) {
@@ -40,23 +43,62 @@ const EnvironmentList = ({ collection }) => {
       }
     }
 
-    // check env delete
     if (prevEnvUids && prevEnvUids.length && envUids.length < prevEnvUids.length) {
       setSelectedEnvironment(environments && environments.length ? environments[0] : null);
     }
   }, [envUids, environments, prevEnvUids]);
 
+  const handleEnvironmentClick = (env) => {
+    if (!isModified) {
+      setSelectedEnvironment(env);
+    } else {
+      setSwitchEnvConfirmClose(true);
+    }
+  };
+
   if (!selectedEnvironment) {
     return null;
   }
 
+  const handleCreateEnvClick = () => {
+    if (!isModified) {
+      setOpenCreateModal(true);
+    } else {
+      setSwitchEnvConfirmClose(true);
+    }
+  };
+
+  const handleImportClick = () => {
+    if (!isModified) {
+      setOpenImportModal(true);
+    } else {
+      setSwitchEnvConfirmClose(true);
+    }
+  };
+
+  const handleSecretsClick = () => {
+    setOpenManageSecretsModal(true);
+  };
+
+  const handleConfirmSwitch = (saveChanges) => {
+    if (!saveChanges) {
+      setSwitchEnvConfirmClose(false);
+    }
+  };
+
   return (
     <StyledWrapper>
       {openCreateModal && <CreateEnvironment collection={collection} onClose={() => setOpenCreateModal(false)} />}
       {openImportModal && <ImportEnvironment collection={collection} onClose={() => setOpenImportModal(false)} />}
       {openManageSecretsModal && <ManageSecrets onClose={() => setOpenManageSecretsModal(false)} />}
+
       <div className="flex">
         <div>
+          {switchEnvConfirmClose && (
+            <div className="flex items-center justify-between tab-container px-1">
+              <ConfirmSwitchEnv onCancel={() => handleConfirmSwitch(false)} />
+            </div>
+          )}
           <div className="environments-sidebar flex flex-col">
             {environments &&
               environments.length &&
@@ -64,28 +106,33 @@ const EnvironmentList = ({ collection }) => {
                 <div
                   key={env.uid}
                   className={selectedEnvironment.uid === env.uid ? 'environment-item active' : 'environment-item'}
-                  onClick={() => setSelectedEnvironment(env)}
+                  onClick={() => handleEnvironmentClick(env)} // Use handleEnvironmentClick to handle clicks
                 >
                   <span className="break-all">{env.name}</span>
                 </div>
               ))}
-            <div className="btn-create-environment" onClick={() => setOpenCreateModal(true)}>
+            <div className="btn-create-environment" onClick={() => handleCreateEnvClick()}>
               + <span>Create</span>
             </div>
 
             <div className="mt-auto btn-import-environment">
-              <div className="flex items-center" onClick={() => setOpenImportModal(true)}>
+              <div className="flex items-center" onClick={() => handleImportClick()}>
                 <IconDownload size={12} strokeWidth={2} />
                 <span className="label ml-1 text-xs">Import</span>
               </div>
-              <div className="flex items-center mt-2" onClick={() => setOpenManageSecretsModal(true)}>
+              <div className="flex items-center mt-2" onClick={() => handleSecretsClick()}>
                 <IconShieldLock size={12} strokeWidth={2} />
                 <span className="label ml-1 text-xs">Managing Secrets</span>
               </div>
             </div>
           </div>
         </div>
-        <EnvironmentDetails environment={selectedEnvironment} collection={collection} />
+        <EnvironmentDetails
+          environment={selectedEnvironment}
+          collection={collection}
+          setIsModified={setIsModified}
+          originalEnvironmentVariables={originalEnvironmentVariables}
+        />
       </div>
     </StyledWrapper>
   );
diff --git a/packages/bruno-app/src/components/Environments/EnvironmentSettings/index.js b/packages/bruno-app/src/components/Environments/EnvironmentSettings/index.js
index 6daccc374..0a3f7e25b 100644
--- a/packages/bruno-app/src/components/Environments/EnvironmentSettings/index.js
+++ b/packages/bruno-app/src/components/Environments/EnvironmentSettings/index.js
@@ -6,9 +6,11 @@ import StyledWrapper from './StyledWrapper';
 import ImportEnvironment from './ImportEnvironment';
 
 const EnvironmentSettings = ({ collection, onClose }) => {
+  const [isModified, setIsModified] = useState(false);
   const { environments } = collection;
   const [openCreateModal, setOpenCreateModal] = useState(false);
   const [openImportModal, setOpenImportModal] = useState(false);
+  const [selectedEnvironment, setSelectedEnvironment] = useState(null);
 
   if (!environments || !environments.length) {
     return (
@@ -48,7 +50,13 @@ const EnvironmentSettings = ({ collection, onClose }) => {
 
   return (
     <Modal size="lg" title="Environments" handleCancel={onClose} hideFooter={true}>
-      <EnvironmentList collection={collection} />
+      <EnvironmentList
+        selectedEnvironment={selectedEnvironment}
+        setSelectedEnvironment={setSelectedEnvironment}
+        collection={collection}
+        isModified={isModified}
+        setIsModified={setIsModified}
+      />
     </Modal>
   );
 };
diff --git a/packages/bruno-app/src/components/RequestPane/Auth/index.js b/packages/bruno-app/src/components/RequestPane/Auth/index.js
index f525b065c..51a1450f1 100644
--- a/packages/bruno-app/src/components/RequestPane/Auth/index.js
+++ b/packages/bruno-app/src/components/RequestPane/Auth/index.js
@@ -41,7 +41,9 @@ const Auth = ({ item, collection }) => {
                   <div>Collection level auth is: </div>
                   <div className="inherit-mode-text">{humanizeRequestAuthMode(collectionAuth?.mode)}</div>
                 </div>
-                <div className="text-sm opacity-50">Cannot inherit Oauth2 from collection.</div>
+                <div className="text-sm opacity-50">
+                  Note: You need to use scripting to set the access token in the request headers.
+                </div>
               </div>
             ) : (
               <>
diff --git a/packages/bruno-app/src/components/Sidebar/index.js b/packages/bruno-app/src/components/Sidebar/index.js
index aa2080d11..7902eac65 100644
--- a/packages/bruno-app/src/components/Sidebar/index.js
+++ b/packages/bruno-app/src/components/Sidebar/index.js
@@ -129,7 +129,7 @@ const Sidebar = () => {
                   Star
                 </GitHubButton> */}
               </div>
-              <div className="flex flex-grow items-center justify-end text-xs mr-2">v1.14.0</div>
+              <div className="flex flex-grow items-center justify-end text-xs mr-2">v1.16.1</div>
             </div>
           </div>
         </div>
diff --git a/packages/bruno-app/src/providers/App/useTelemetry.js b/packages/bruno-app/src/providers/App/useTelemetry.js
index 3e802444f..c3588c010 100644
--- a/packages/bruno-app/src/providers/App/useTelemetry.js
+++ b/packages/bruno-app/src/providers/App/useTelemetry.js
@@ -60,7 +60,7 @@ const trackStart = () => {
     event: 'start',
     properties: {
       os: platformLib.os.family,
-      version: '1.14.0'
+      version: '1.16.1'
     }
   });
 };
diff --git a/packages/bruno-app/src/utils/collections/index.js b/packages/bruno-app/src/utils/collections/index.js
index 26a120991..f59d9e2d5 100644
--- a/packages/bruno-app/src/utils/collections/index.js
+++ b/packages/bruno-app/src/utils/collections/index.js
@@ -417,7 +417,10 @@ export const transformRequestToSaveToFilesystem = (item) => {
   });
 
   if (itemToSave.request.body.mode === 'json') {
-    itemToSave.request.body.json = replaceTabsWithSpaces(itemToSave.request.body.json);
+    itemToSave.request.body = {
+      ...itemToSave.request.body,
+      json: replaceTabsWithSpaces(itemToSave.request.body.json)
+    };
   }
 
   return itemToSave;
diff --git a/packages/bruno-cli/src/runner/prepare-request.js b/packages/bruno-cli/src/runner/prepare-request.js
index cd3d77c90..8dac18764 100644
--- a/packages/bruno-cli/src/runner/prepare-request.js
+++ b/packages/bruno-cli/src/runner/prepare-request.js
@@ -63,19 +63,8 @@ const prepareRequest = (request, collectionRoot) => {
     headers: headers
   };
 
-  /**
-   * 27 Feb 2024:
-   * ['inherit', 'none'].includes(request.auth.mode)
-   * We are mainitaining the old behavior where 'none' used to inherit the collection auth.
-   *
-   * Very soon, 'none' will be treated as no auth and 'inherit' will be the only way to inherit collection auth.
-   * We will request users to update their collection files to use 'inherit' instead of 'none'.
-   * Don't want to break ongoing CI pipelines.
-   *
-   * Hoping to remove this by 1 April 2024.
-   */
   const collectionAuth = get(collectionRoot, 'request.auth');
-  if (collectionAuth && ['inherit', 'none'].includes(request.auth.mode)) {
+  if (collectionAuth && request.auth.mode === 'none') {
     if (collectionAuth.mode === 'basic') {
       axiosRequest.auth = {
         username: get(collectionAuth, 'basic.username'),
diff --git a/packages/bruno-electron/package.json b/packages/bruno-electron/package.json
index e45bcd813..866cb70ab 100644
--- a/packages/bruno-electron/package.json
+++ b/packages/bruno-electron/package.json
@@ -1,5 +1,5 @@
 {
-  "version": "v1.14.0",
+  "version": "v1.16.1",
   "name": "bruno",
   "description": "Opensource API Client for Exploring and Testing APIs",
   "homepage": "https://www.usebruno.com",
diff --git a/packages/bruno-electron/src/ipc/network/prepare-request.js b/packages/bruno-electron/src/ipc/network/prepare-request.js
index 249b1754f..fed242eb3 100644
--- a/packages/bruno-electron/src/ipc/network/prepare-request.js
+++ b/packages/bruno-electron/src/ipc/network/prepare-request.js
@@ -34,20 +34,9 @@ const parseFormData = (datas, collectionPath) => {
   return form;
 };
 
-/**
- * 27 Feb 2024:
- * ['inherit', 'none'].includes(request.auth.mode)
- * We are mainitaining the old behavior where 'none' used to inherit the collection auth.
- *
- * Very soon, 'none' will be treated as no auth and 'inherit' will be the only way to inherit collection auth.
- * We will request users to update their collection files to use 'inherit' instead of 'none'.
- * Don't want to break ongoing CI pipelines.
- *
- * Hoping to remove this by 1 April 2024.
- */
 const setAuthHeaders = (axiosRequest, request, collectionRoot) => {
   const collectionAuth = get(collectionRoot, 'request.auth');
-  if (collectionAuth && ['inherit', 'none'].includes(request.auth.mode)) {
+  if (collectionAuth && request.auth.mode === 'inherit') {
     switch (collectionAuth.mode) {
       case 'awsv4':
         axiosRequest.awsv4config = {