diff --git a/api/CHANGELOG.md b/api/CHANGELOG.md
index 10c865aaf4..c5d62cd8a6 100644
--- a/api/CHANGELOG.md
+++ b/api/CHANGELOG.md
@@ -1,3 +1,11 @@
+## 0.36.2
+
+_01/25/2024_
+
+### Changes
+https://github.com/gear-tech/gear-js/pull/1477
+- Return support of old vouchers
+
 ## 0.36.1
 
 _01/23/2024_
diff --git a/api/package.json b/api/package.json
index 439fe6fa57..20ad31ab7d 100644
--- a/api/package.json
+++ b/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gear-js/api",
-  "version": "0.36.1",
+  "version": "0.36.2",
   "description": "A JavaScript library that provides functionality to connect GEAR Component APIs.",
   "main": "cjs/index.js",
   "module": "index.js",
diff --git a/api/src/Voucher.ts b/api/src/Voucher.ts
index edfa753519..fc81b64781 100644
--- a/api/src/Voucher.ts
+++ b/api/src/Voucher.ts
@@ -1,4 +1,3 @@
-import { stringToU8a, u8aToU8a } from '@polkadot/util';
 import { BalanceOf } from '@polkadot/types/interfaces';
 import { HexString } from '@polkadot/util/types';
 import { ISubmittableResult } from '@polkadot/types/types';
@@ -7,8 +6,9 @@ import { SubmittableExtrinsic } from '@polkadot/api/types';
 import { blake2AsHex } from '@polkadot/util-crypto';
 
 import { ICallOptions, IUpdateVoucherParams, IVoucherDetails, PalletGearVoucherInternalVoucherInfo } from './types';
+import { decodeAddress, generateVoucherId } from './utils';
 import { GearTransaction } from './Transaction';
-import { generateVoucherId } from './utils';
+import { SPEC_VERSION } from './consts';
 
 export class GearVoucher extends GearTransaction {
   /**
@@ -65,9 +65,7 @@ export class GearVoucher extends GearTransaction {
     program: HexString,
     value: number | bigint | string,
   ): { extrinsic: SubmittableExtrinsic<'promise', ISubmittableResult>; voucherId: HexString } {
-    const whoU8a = u8aToU8a(to);
-    const programU8a = u8aToU8a(program);
-    const id = Uint8Array.from([...stringToU8a('modlpy/voucher__'), ...whoU8a, ...programU8a]);
+    const id = generateVoucherId(to, program);
 
     const voucherId = blake2AsHex(id, 256);
     this.extrinsic = this._api.tx.gearVoucher.issue.call(this, to, program, value);
@@ -218,6 +216,16 @@ export class GearVoucher extends GearTransaction {
    * @returns
    */
   async exists(accountId: string, programId: HexString): Promise<boolean> {
+    if (this._api.specVersion < SPEC_VERSION.V1100) {
+      const id = generateVoucherId(decodeAddress(accountId), programId);
+
+      const balance = await this._api.balance.findOut(id);
+      if (balance.eqn(0)) {
+        return false;
+      }
+      return true;
+    }
+
     const keyPrefixes = this._api.query.gearVoucher.vouchers.keyPrefix(accountId);
 
     const keysPaged = await this._api.rpc.state.getKeysPaged(keyPrefixes, 1000, keyPrefixes);
@@ -245,8 +253,8 @@ export class GearVoucher extends GearTransaction {
    * @param accountId
    * @returns
    */
-  async getAllForAccount(accountId: string): Promise<Record<string, string[]>> {
-    const result: Record<string, string[]> = {};
+  async getAllForAccount(accountId: string, programId?: HexString): Promise<Record<string, IVoucherDetails>> {
+    const result: Record<string, IVoucherDetails> = {};
 
     const keyPrefix = this._api.query.gearVoucher.vouchers.keyPrefix(accountId);
 
@@ -270,9 +278,19 @@ export class GearVoucher extends GearTransaction {
         return;
       }
 
-      const programs = typedItem.unwrap().programs.unwrapOrDefault().toJSON() as string[];
+      const details = typedItem.unwrap();
+      const programs = details.programs.unwrapOrDefault().toJSON() as string[];
+
+      if (details.programs.isSome && programId && !programs.includes(programId)) {
+        return;
+      }
 
-      result[voucherId] = programs;
+      result[voucherId] = {
+        owner: details.owner.toHex(),
+        programs,
+        expiry: details.expiry.toNumber(),
+        codeUploading: details.codeUploading.isTrue,
+      };
     });
 
     return result;
diff --git a/api/src/utils/generate.ts b/api/src/utils/generate.ts
index 2828057c97..40b95ba86b 100644
--- a/api/src/utils/generate.ts
+++ b/api/src/utils/generate.ts
@@ -6,6 +6,7 @@ import { CreateType } from '../metadata';
 import { GearApi } from 'GearApi';
 import { SPEC_VERSION } from '../consts';
 
+const VOUCHER_PREFIX_BEFORE_1100 = stringToU8a('modlpy/voucher__');
 const VOUCHER_PREFIX = stringToU8a('voucher');
 
 export function generateCodeHash(code: Buffer | Uint8Array | HexString): HexString {
@@ -38,8 +39,20 @@ export function generateProgramId(
   return blake2AsHex(id, 256);
 }
 
-export function generateVoucherId(nonce: U8aLike): HexString {
-  const nonceU8a = u8aToU8a(nonce);
-  const id = Uint8Array.from([...VOUCHER_PREFIX, ...nonceU8a]);
+/**
+ * @deprecated
+ */
+export function generateVoucherId(who: HexString, programId: HexString): HexString;
+export function generateVoucherId(nonce: U8aLike): HexString;
+export function generateVoucherId(nonceOrWho: U8aLike | HexString, programId?: HexString): HexString {
+  const [nonce, who] = typeof nonceOrWho === 'string' && programId ? [undefined, nonceOrWho] : [nonceOrWho, undefined];
+  if (nonce) {
+    const nonceU8a = u8aToU8a(nonce);
+    const id = Uint8Array.from([...VOUCHER_PREFIX, ...nonceU8a]);
+    return blake2AsHex(id, 256);
+  }
+  const whoU8a = u8aToU8a(who);
+  const programU8a = u8aToU8a(programId);
+  const id = Uint8Array.from([...VOUCHER_PREFIX_BEFORE_1100, ...whoU8a, ...programU8a]);
   return blake2AsHex(id, 256);
 }
diff --git a/api/test/Voucher.test.ts b/api/test/Voucher.test.ts
index ef2a946259..8fd07781bc 100644
--- a/api/test/Voucher.test.ts
+++ b/api/test/Voucher.test.ts
@@ -63,7 +63,7 @@ describe('Voucher', () => {
     expect(txData).toHaveProperty('holder');
     expect(txData).toHaveProperty('program');
     expect(txData).toHaveProperty('value');
-    expect(Object.keys(txData)).toHaveLength(3);
+    expect(Object.keys(txData.toJSON())).toHaveLength(3);
     expect(txData.holder.toHuman()).toBe(charlie.address);
     expect(txData.program.toHex()).toBe(programId);
     expect(txData.value.toNumber()).toBe(100_000_000_000_000);
@@ -121,8 +121,10 @@ describe('Voucher', () => {
   test('Get all vouchers for account', async () => {
     const vouchers = await api.voucher.getAllForAccount(charlie.address);
     expect(Object.keys(vouchers)).toHaveLength(1);
-    expect(vouchers[voucher]).toHaveLength(1);
-    expect(vouchers[voucher][0]).toBe(programId);
+    expect(vouchers[voucher]).toHaveProperty('programs', [programId]);
+    expect(vouchers[voucher]).toHaveProperty('owner', decodeAddress(alice.address));
+    expect(vouchers[voucher]).toHaveProperty('expiry', validUpTo);
+    expect(vouchers[voucher]).toHaveProperty('codeUploading', true);
   });
 
   test('Get voucher details', async () => {