diff --git a/app/definitions/rest/v1/omnichannel.ts b/app/definitions/rest/v1/omnichannel.ts
index 0f3162d195e..1f6915f2c39 100644
--- a/app/definitions/rest/v1/omnichannel.ts
+++ b/app/definitions/rest/v1/omnichannel.ts
@@ -136,11 +136,16 @@ export type OmnichannelEndpoints = {
 	};
 
 	'livechat/inquiries.take': {
-		POST: (params: { inquiryId: string }) => void;
+		POST: (params: { inquiryId: string; userId?: string }) => {
+			success: boolean;
+		};
 	};
 
 	'livechat/inquiries.returnAsInquiry': {
-		POST: (params: { roomId: string; departmentId?: string }) => boolean;
+		POST: (params: { roomId: string; departmentId?: string }) => {
+			result: boolean;
+			success: boolean;
+		};
 	};
 
 	'livechat/rooms': {
@@ -251,4 +256,38 @@ export type OmnichannelEndpoints = {
 			};
 		}) => void;
 	};
+	'livechat/agent.status': {
+		POST: (params: { agentId?: string }) => {
+			status: string;
+			success: boolean;
+		};
+	};
+	'livechat/room.closeByUser': {
+		POST: (params: {
+			rid: string;
+			comment?: string;
+			forceClose?: boolean;
+			tags?: string[];
+			generateTranscriptPdf?: boolean;
+			transcriptEmail?: { sendToVisitor: boolean; requestData?: { email?: string; subject?: string } };
+		}) => {
+			success: boolean;
+		};
+	};
+	'livechat/room.forward': {
+		POST: (params: { roomId: string; userId?: string; departmentId?: string }) => {
+			success: boolean;
+		};
+	};
+	'livechat/tags': {
+		GET: () => {
+			tags: ILivechatTag[];
+			success: boolean;
+		};
+	};
+	'livechat/room.resumeOnHold': {
+		POST: (params: { roomId: string }) => {
+			success: boolean;
+		};
+	};
 };
diff --git a/app/definitions/rest/v1/users.ts b/app/definitions/rest/v1/users.ts
index 751cfbf83fb..23ab993504a 100644
--- a/app/definitions/rest/v1/users.ts
+++ b/app/definitions/rest/v1/users.ts
@@ -69,4 +69,7 @@ export type UsersEndpoints = {
 	'users.deleteOwnAccount': {
 		POST: (params: { password: string; confirmRelinquish: boolean }) => { success: boolean };
 	};
+	'users.sendConfirmationEmail': {
+		POST: (params: { email: string }) => { success: boolean };
+	};
 };
diff --git a/app/ee/omnichannel/lib/index.ts b/app/ee/omnichannel/lib/index.ts
index b3cfc4a852b..60308b3cb43 100644
--- a/app/ee/omnichannel/lib/index.ts
+++ b/app/ee/omnichannel/lib/index.ts
@@ -1,12 +1,20 @@
 import sdk from '../../../lib/services/sdk';
 import { compareServerVersion } from '../../../lib/methods/helpers';
 import EventEmitter from '../../../lib/methods/helpers/events';
+import { store as reduxStore } from '../../../lib/store/auxStore';
 import subscribeInquiry from './subscriptions/inquiry';
 
 export const isOmnichannelStatusAvailable = (statusLivechat: string | undefined): boolean => statusLivechat === 'available';
 
 // RC 0.26.0
-export const changeLivechatStatus = () => sdk.methodCallWrapper('livechat:changeLivechatStatus');
+export const changeLivechatStatus = () => {
+	const serverVersion = reduxStore.getState().server.version;
+	if (compareServerVersion(serverVersion, 'greaterThanOrEqualTo', '8.0.0')) {
+		return sdk.post('livechat/agent.status');
+	}
+	// Method removed in 8.0.0
+	return sdk.methodCallWrapper('livechat:changeLivechatStatus');
+};
 
 // RC 2.4.0
 // @ts-ignore
@@ -29,7 +37,14 @@ export const takeInquiry = (inquiryId: string, serverVersion: string) => {
 };
 
 // RC 4.26
-export const takeResume = (roomId: string) => sdk.methodCallWrapper('livechat:resumeOnHold', roomId);
+export const takeResume = (roomId: string) => {
+	const serverVersion = reduxStore.getState().server.version;
+	if (compareServerVersion(serverVersion, 'greaterThanOrEqualTo', '8.0.0')) {
+		return sdk.post('livechat/room.resumeOnHold', { roomId });
+	}
+	// Method removed in 8.0.0
+	return sdk.methodCallWrapper('livechat:resumeOnHold', roomId);
+};
 
 class Omnichannel {
 	private inquirySub: { stop: () => void } | null;
diff --git a/app/lib/services/restApi.ts b/app/lib/services/restApi.ts
index fae53447715..3b0d50e2a7b 100644
--- a/app/lib/services/restApi.ts
+++ b/app/lib/services/restApi.ts
@@ -106,8 +106,14 @@ export const forgotPassword = (email: string) =>
 	// RC 0.64.0
 	sdk.post('users.forgotPassword', { email });
 
-export const sendConfirmationEmail = (email: string): Promise<{ message: string; success: boolean }> =>
-	sdk.methodCallWrapper('sendConfirmationEmail', email);
+export const sendConfirmationEmail = (email: string): Promise<{ success: boolean }> => {
+	const serverVersion = reduxStore.getState().server.version;
+	if (compareServerVersion(serverVersion, 'greaterThanOrEqualTo', '8.0.0')) {
+		return sdk.post('users.sendConfirmationEmail', { email });
+	}
+
+	return sdk.methodCallWrapper('sendConfirmationEmail', email);
+};
 
 export const spotlight = (
 	search: string,
@@ -411,11 +417,15 @@ export const getTeamListRoom = ({
 };
 
 export const closeLivechat = (rid: string, comment?: string, tags?: string[]) => {
+	const serverVersion = reduxStore.getState().server.version;
 	// RC 3.2.0
 	let params;
 	if (tags && tags?.length) {
 		params = { tags };
 	}
+	if (compareServerVersion(serverVersion, 'greaterThanOrEqualTo', '8.0.0')) {
+		return sdk.post('livechat/room.closeByUser', { rid, comment, ...params });
+	}
 	// RC 0.29.0
 	return sdk.methodCallWrapper('livechat:closeRoom', rid, comment, { clientAction: true, ...params });
 };
@@ -443,9 +453,14 @@ export const returnLivechat = (rid: string, departmentId?: string): Promise<any>
 
 export const onHoldLivechat = (roomId: string) => sdk.post('livechat/room.onHold', { roomId });
 
-export const forwardLivechat = (transferData: any) =>
+export const forwardLivechat = (transferData: any) => {
+	const serverVersion = reduxStore.getState().server.version;
+	if (compareServerVersion(serverVersion, 'greaterThanOrEqualTo', '8.0.0')) {
+		return sdk.post('livechat/room.forward', transferData);
+	}
 	// RC 0.36.0
-	sdk.methodCallWrapper('livechat:transfer', transferData);
+	return sdk.methodCallWrapper('livechat:transfer', transferData);
+};
 
 export const getDepartmentInfo = (departmentId: string) =>
 	// RC 2.2.0
@@ -489,9 +504,18 @@ export const getRoutingConfig = async (): Promise<{
 	return sdk.methodCallWrapper('livechat:getRoutingConfig');
 };
 
-export const getTagsList = (): Promise<ILivechatTag[]> =>
+export const getTagsList = async (): Promise<ILivechatTag[]> => {
+	const serverVersion = reduxStore.getState().server.version;
+	if (compareServerVersion(serverVersion, 'greaterThanOrEqualTo', '8.0.0')) {
+		const result = await sdk.get('livechat/tags');
+		if (result.success) {
+			return result.tags || [];
+		}
+		return [];
+	}
 	// RC 2.0.0
-	sdk.methodCallWrapper('livechat:getTagsList');
+	return sdk.methodCallWrapper('livechat:getTagsList');
+};
 
 export const getAgentDepartments = (uid: string) =>
 	// RC 2.4.0