diff --git a/composer.json b/composer.json
index 5585f2a5..4c9cdc40 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
         "php": ">=8.1",
         "ext-curl": "*",
         "ext-openssl": "*",
-        "appwrite/appwrite": "19.*",
+        "appwrite/appwrite": "20.*",
         "utopia-php/database": "5.*",
         "utopia-php/storage": "1.0.*",
         "utopia-php/dsn": "0.2.*",
diff --git a/composer.lock b/composer.lock
index 17d14221..9444b087 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,29 +4,29 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "37980b9001fbbd4f213f3102c1332727",
+    "content-hash": "cce689808f9fd30a82c0b7d1819af517",
     "packages": [
         {
             "name": "appwrite/appwrite",
-            "version": "19.1.0",
+            "version": "20.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/appwrite/sdk-for-php.git",
-                "reference": "8738e812062f899c85b2598eef43d6a247f08a56"
+                "reference": "e8c76cbe6b09f964694a3d1b9096cb91737e48e2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/appwrite/sdk-for-php/zipball/8738e812062f899c85b2598eef43d6a247f08a56",
-                "reference": "8738e812062f899c85b2598eef43d6a247f08a56",
+                "url": "https://api.github.com/repos/appwrite/sdk-for-php/zipball/e8c76cbe6b09f964694a3d1b9096cb91737e48e2",
+                "reference": "e8c76cbe6b09f964694a3d1b9096cb91737e48e2",
                 "shasum": ""
             },
             "require": {
                 "ext-curl": "*",
                 "ext-json": "*",
-                "php": ">=7.1.0"
+                "php": ">=8.0.0"
             },
             "require-dev": {
-                "mockery/mockery": "^1.6.12",
+                "mockery/mockery": "1.6.12",
                 "phpunit/phpunit": "^10"
             },
             "type": "library",
@@ -39,14 +39,14 @@
             "license": [
                 "BSD-3-Clause"
             ],
-            "description": "Appwrite is an open-source self-hosted backend server that abstract and simplify complex and repetitive development tasks behind a very simple REST API",
+            "description": "Appwrite is an open-source self-hosted backend server that abstracts and simplifies complex and repetitive development tasks behind a very simple REST API",
             "support": {
                 "email": "team@appwrite.io",
                 "issues": "https://github.com/appwrite/sdk-for-php/issues",
-                "source": "https://github.com/appwrite/sdk-for-php/tree/19.1.0",
+                "source": "https://github.com/appwrite/sdk-for-php/tree/20.1.0",
                 "url": "https://appwrite.io/support"
             },
-            "time": "2025-12-18T08:07:43+00:00"
+            "time": "2026-02-12T11:55:40+00:00"
         },
         {
             "name": "brick/math",
@@ -4997,7 +4997,7 @@
     ],
     "aliases": [],
     "minimum-stability": "stable",
-    "stability-flags": {},
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
diff --git a/src/Migration/Destinations/Appwrite.php b/src/Migration/Destinations/Appwrite.php
index 256fe00c..4bfdf2fd 100644
--- a/src/Migration/Destinations/Appwrite.php
+++ b/src/Migration/Destinations/Appwrite.php
@@ -98,8 +98,8 @@ public function __construct(
         string $endpoint,
         string $key,
         protected UtopiaDatabase $dbForProject,
-        callable $getDatabasesDB,
-        protected array $collectionStructure
+        ?callable $getDatabasesDB = null,
+        protected array $collectionStructure = []
     ) {
         $this->project = $project;
         $this->endpoint = $endpoint;
@@ -169,6 +169,9 @@ public static function getSupportedResources(): array
             Resource::TYPE_SITE,
             Resource::TYPE_SITE_DEPLOYMENT,
             Resource::TYPE_SITE_VARIABLE,
+
+            // Backups
+            Resource::TYPE_BACKUP_POLICY,
         ];
     }
 
@@ -324,6 +327,7 @@ protected function import(array $resources, callable $callback): void
                     Transfer::GROUP_AUTH => $this->importAuthResource($resource),
                     Transfer::GROUP_FUNCTIONS => $this->importFunctionResource($resource),
                     Transfer::GROUP_MESSAGING => $this->importMessagingResource($resource),
+                    Transfer::GROUP_BACKUPS => $this->importBackupResource($resource),
                     Transfer::GROUP_SITES => $this->importSiteResource($resource),
                     default => throw new \Exception('Invalid resource group', Exception::CODE_VALIDATION),
                 };
@@ -1479,6 +1483,13 @@ public function importFunctionResource(Resource $resource): Resource
         return $resource;
     }
 
+    public function importBackupResource(Resource $resource): Resource
+    {
+        $resource->setStatus(Resource::STATUS_SUCCESS);
+
+        return $resource;
+    }
+
     /**
      * @throws AppwriteException
      * @throws \Exception
diff --git a/src/Migration/Resource.php b/src/Migration/Resource.php
index 1dc198c6..2fc102c5 100644
--- a/src/Migration/Resource.php
+++ b/src/Migration/Resource.php
@@ -75,6 +75,9 @@ abstract class Resource implements \JsonSerializable
 
     public const TYPE_MESSAGE = 'message';
 
+    // Backups
+    public const TYPE_BACKUP_POLICY = 'backup-policy';
+
     // legacy terminologies
     public const TYPE_DOCUMENT = 'document';
     public const TYPE_ATTRIBUTE = 'attribute';
@@ -110,6 +113,7 @@ abstract class Resource implements \JsonSerializable
         self::TYPE_TOPIC,
         self::TYPE_SUBSCRIBER,
         self::TYPE_MESSAGE,
+        self::TYPE_BACKUP_POLICY,
 
         // legacy
         self::TYPE_DOCUMENT,
diff --git a/src/Migration/Resources/Backups/Policy.php b/src/Migration/Resources/Backups/Policy.php
new file mode 100644
index 00000000..d5358b42
--- /dev/null
+++ b/src/Migration/Resources/Backups/Policy.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Utopia\Migration\Resources\Backups;
+
+use Utopia\Migration\Resource;
+use Utopia\Migration\Transfer;
+
+class Policy extends Resource
+{
+    /**
+     * @param string $id
+     * @param string $name
+     * @param array<string> $services
+     * @param int $retention
+     * @param string $schedule
+     * @param bool $enabled
+     * @param string $resourceId
+     * @param string $resourceType
+     */
+    public function __construct(
+        string $id = '',
+        private readonly string $name = '',
+        private readonly array $services = [],
+        private readonly int $retention = 0,
+        private readonly string $schedule = '',
+        private readonly bool $enabled = true,
+        private readonly string $resourceId = '',
+        private readonly string $resourceType = '',
+    ) {
+        $this->id = $id;
+    }
+
+    /**
+     * @param array<string, mixed> $array
+     * @return self
+     */
+    public static function fromArray(array $array): self
+    {
+        return new self(
+            $array['id'],
+            $array['name'] ?? '',
+            $array['services'] ?? [],
+            $array['retention'] ?? 0,
+            $array['schedule'] ?? '',
+            $array['enabled'] ?? true,
+            $array['resourceId'] ?? '',
+            $array['resourceType'] ?? '',
+        );
+    }
+
+    /**
+     * @return array<string, mixed>
+     */
+    public function jsonSerialize(): array
+    {
+        return [
+            'id' => $this->id,
+            'name' => $this->name,
+            'services' => $this->services,
+            'retention' => $this->retention,
+            'schedule' => $this->schedule,
+            'enabled' => $this->enabled,
+            'resourceId' => $this->resourceId,
+            'resourceType' => $this->resourceType,
+        ];
+    }
+
+    public static function getName(): string
+    {
+        return Resource::TYPE_BACKUP_POLICY;
+    }
+
+    public function getGroup(): string
+    {
+        return Transfer::GROUP_BACKUPS;
+    }
+
+    public function getPolicyName(): string
+    {
+        return $this->name;
+    }
+
+    /**
+     * @return array<string>
+     */
+    public function getServices(): array
+    {
+        return $this->services;
+    }
+
+    public function getRetention(): int
+    {
+        return $this->retention;
+    }
+
+    public function getSchedule(): string
+    {
+        return $this->schedule;
+    }
+
+    public function getEnabled(): bool
+    {
+        return $this->enabled;
+    }
+
+    public function getResourceId(): string
+    {
+        return $this->resourceId;
+    }
+
+    public function getResourceType(): string
+    {
+        return $this->resourceType;
+    }
+}
diff --git a/src/Migration/Resources/Database/Database.php b/src/Migration/Resources/Database/Database.php
index 05afab2c..23737f29 100644
--- a/src/Migration/Resources/Database/Database.php
+++ b/src/Migration/Resources/Database/Database.php
@@ -52,7 +52,7 @@ public static function fromArray(array $array): self
             enabled: $array['enabled'] ?? true,
             originalId: $array['originalId'] ?? '',
             type: $array['type'] ?? 'legacy',
-            database: $array['database']
+            database: $array['database'] ?? ''
         );
     }
 
diff --git a/src/Migration/Source.php b/src/Migration/Source.php
index b6eb8c42..3894597c 100644
--- a/src/Migration/Source.php
+++ b/src/Migration/Source.php
@@ -41,6 +41,11 @@ public function getMessagingBatchSize(): int
         return static::$defaultBatchSize;
     }
 
+    public function getBackupsBatchSize(): int
+    {
+        return static::$defaultBatchSize;
+    }
+
     public function getSitesBatchSize(): int
     {
         return static::$defaultBatchSize;
@@ -108,6 +113,7 @@ public function exportResources(array $resources): void
                 Transfer::GROUP_STORAGE => Transfer::GROUP_STORAGE_RESOURCES,
                 Transfer::GROUP_FUNCTIONS => Transfer::GROUP_FUNCTIONS_RESOURCES,
                 Transfer::GROUP_MESSAGING => Transfer::GROUP_MESSAGING_RESOURCES,
+                Transfer::GROUP_BACKUPS => Transfer::GROUP_BACKUPS_RESOURCES,
                 Transfer::GROUP_SITES => Transfer::GROUP_SITES_RESOURCES,
             ];
 
@@ -140,6 +146,9 @@ public function exportResources(array $resources): void
                 case Transfer::GROUP_MESSAGING:
                     $this->exportGroupMessaging($this->getMessagingBatchSize(), $resources);
                     break;
+                case Transfer::GROUP_BACKUPS:
+                    $this->exportGroupBackups($this->getBackupsBatchSize(), $resources);
+                    break;
                 case Transfer::GROUP_SITES:
                     $this->exportGroupSites($this->getSitesBatchSize(), $resources);
                     break;
@@ -187,6 +196,14 @@ abstract protected function exportGroupFunctions(int $batchSize, array $resource
      */
     abstract protected function exportGroupMessaging(int $batchSize, array $resources): void;
 
+    /**
+     * Export Backups Group
+     *
+     * @param int $batchSize
+     * @param array<string> $resources Resources to export
+     */
+    abstract protected function exportGroupBackups(int $batchSize, array $resources): void;
+
     /**
      * Export Sites Group
      *
diff --git a/src/Migration/Sources/Appwrite.php b/src/Migration/Sources/Appwrite.php
index ca00f1be..a4058886 100644
--- a/src/Migration/Sources/Appwrite.php
+++ b/src/Migration/Sources/Appwrite.php
@@ -14,7 +14,6 @@
 use Appwrite\Services\Users;
 use Utopia\Database\Database as UtopiaDatabase;
 use Utopia\Database\DateTime as UtopiaDateTime;
-use Utopia\Database\Document as UtopiaDocument;
 use Utopia\Migration\Exception;
 use Utopia\Migration\Resource;
 use Utopia\Migration\Resources\Auth\Hash;
@@ -91,10 +90,7 @@ class Appwrite extends Source
 
     private Sites $sites;
 
-    /**
-     * @var callable(UtopiaDocument $database|null): UtopiaDatabase
-     */
-    protected mixed $getDatabasesDB;
+    private Reader $database;
 
     /**
      * @throws \Exception
@@ -103,7 +99,7 @@ public function __construct(
         protected string $project,
         protected string $endpoint,
         protected string $key,
-        callable $getDatabasesDB,
+        ?callable $getDatabasesDB = null,
         protected string $source = self::SOURCE_API,
         protected ?UtopiaDatabase $dbForProject = null,
         protected array $queries = [],
@@ -200,6 +196,9 @@ public static function getSupportedResources(): array
             Resource::TYPE_SITE_DEPLOYMENT,
             Resource::TYPE_SITE_VARIABLE,
 
+            // Backups
+            Resource::TYPE_BACKUP_POLICY,
+
             // Settings
         ];
     }
@@ -239,6 +238,7 @@ public function report(array $resources = [], array $resourceIds = []): array
             $this->reportFunctions($resources, $report, $resourceIds);
             $this->reportMessaging($resources, $report, $resourceIds);
             $this->reportSites($resources, $report, $resourceIds);
+            $this->reportBackups($resources, $report, $resourceIds);
 
             $report['version'] = $this->call(
                 'GET',
@@ -527,6 +527,13 @@ private function reportSites(array $resources, array &$report, array $resourceId
         }
     }
 
+    protected function reportBackups(array $resources, array &$report, array $resourceIds = []): void
+    {
+        if (\in_array(Resource::TYPE_BACKUP_POLICY, $resources)) {
+            $report[Resource::TYPE_BACKUP_POLICY] = 0;
+        }
+    }
+
     /**
      * Export Auth Resources
      *
@@ -1325,7 +1332,7 @@ private function exportFileData(File $file): void
         // Get the file size
         $fileSize = $file->getSize();
 
-        if ($end >= $fileSize) {
+        if ($end > $fileSize) {
             $end = $fileSize - 1;
         }
 
@@ -1349,7 +1356,7 @@ private function exportFileData(File $file): void
             $start += Transfer::STORAGE_MAX_CHUNK_SIZE;
             $end += Transfer::STORAGE_MAX_CHUNK_SIZE;
 
-            if ($end >= $fileSize) {
+            if ($end > $fileSize) {
                 $end = $fileSize - 1;
             }
         }
@@ -1561,8 +1568,8 @@ private function exportDeploymentData(Func $func, array $deployment): void
             $responseHeaders
         );
 
-        // content-length header missing, file is less than max buffer size
-        if (!array_key_exists('content-length', $responseHeaders)) {
+        // Content-Length header was missing, file is less than max buffer size.
+        if (!array_key_exists('Content-Length', $responseHeaders)) {
             $file = $this->call(
                 'GET',
                 "/functions/{$func->getId()}/deployments/{$deployment['$id']}/download",
@@ -1571,7 +1578,7 @@ private function exportDeploymentData(Func $func, array $deployment): void
                 $responseHeaders
             );
 
-            $size = strlen($file);
+            $size = mb_strlen($file);
 
             if ($end > $size) {
                 $end = $size - 1;
@@ -1594,11 +1601,7 @@ private function exportDeploymentData(Func $func, array $deployment): void
             return;
         }
 
-        $fileSize = $responseHeaders['content-length'];
-
-        if ($end >= $fileSize) {
-            $end = $fileSize - 1;
-        }
+        $fileSize = $responseHeaders['Content-Length'];
 
         $deployment = new Deployment(
             $deployment['$id'],
@@ -1633,12 +1636,17 @@ private function exportDeploymentData(Func $func, array $deployment): void
             $start += Transfer::STORAGE_MAX_CHUNK_SIZE;
             $end += Transfer::STORAGE_MAX_CHUNK_SIZE;
 
-            if ($end >= $fileSize) {
+            if ($end > $fileSize) {
                 $end = $fileSize - 1;
             }
         }
     }
 
+    protected function exportGroupBackups(int $batchSize, array $resources): void
+    {
+        // No-op: backup policies are Cloud-only
+    }
+
     /**
      * @param array<string> $resources
      * @param array<string, int> $report
@@ -2112,7 +2120,7 @@ private function exportSiteDeploymentData(Site $site, array $deployment): void
             $responseHeaders
         );
 
-        if (!\array_key_exists('content-length', $responseHeaders)) {
+        if (!\array_key_exists('Content-Length', $responseHeaders)) {
             $file = $this->call(
                 'GET',
                 "/sites/{$site->getId()}/deployments/{$deployment['$id']}/download",
@@ -2121,7 +2129,7 @@ private function exportSiteDeploymentData(Site $site, array $deployment): void
                 $responseHeaders
             );
 
-            $size = strlen($file);
+            $size = mb_strlen($file);
 
             if ($end > $size) {
                 $end = $size - 1;
@@ -2143,11 +2151,7 @@ private function exportSiteDeploymentData(Site $site, array $deployment): void
             return;
         }
 
-        $fileSize = $responseHeaders['content-length'];
-
-        if ($end >= $fileSize) {
-            $end = $fileSize - 1;
-        }
+        $fileSize = $responseHeaders['Content-Length'];
 
         $siteDeployment = new SiteDeployment(
             $deployment['$id'],
@@ -2178,7 +2182,7 @@ private function exportSiteDeploymentData(Site $site, array $deployment): void
             $start += Transfer::STORAGE_MAX_CHUNK_SIZE;
             $end += Transfer::STORAGE_MAX_CHUNK_SIZE;
 
-            if ($end >= $fileSize) {
+            if ($end > $fileSize) {
                 $end = $fileSize - 1;
             }
         }
@@ -2508,7 +2512,7 @@ public static function getAttribute(Collection $collection, mixed $attribute): A
     /**
      * Build queries with optional filtering by resource IDs
      */
-    private function buildQueries(
+    protected function buildQueries(
         string $resourceType,
         array $resourceIds,
         ?string $cursor = null,
diff --git a/src/Migration/Sources/CSV.php b/src/Migration/Sources/CSV.php
index 7d02090f..1dbdafa9 100644
--- a/src/Migration/Sources/CSV.php
+++ b/src/Migration/Sources/CSV.php
@@ -421,6 +421,14 @@ protected function exportGroupMessaging(int $batchSize, array $resources): void
         throw new \Exception('Not Implemented');
     }
 
+    /**
+     * @throws \Exception
+     */
+    protected function exportGroupBackups(int $batchSize, array $resources): void
+    {
+        throw new \Exception('Not Implemented');
+    }
+
     /**
      * @throws \Exception
      */
diff --git a/src/Migration/Sources/Firebase.php b/src/Migration/Sources/Firebase.php
index 4495fb5b..73c9a179 100644
--- a/src/Migration/Sources/Firebase.php
+++ b/src/Migration/Sources/Firebase.php
@@ -814,6 +814,11 @@ protected function exportGroupMessaging(int $batchSize, array $resources): void
         throw new \Exception('Not implemented');
     }
 
+    protected function exportGroupBackups(int $batchSize, array $resources): void
+    {
+        throw new \Exception('Not implemented');
+    }
+
     protected function exportGroupSites(int $batchSize, array $resources): void
     {
         throw new \Exception('Not implemented');
diff --git a/src/Migration/Sources/JSON.php b/src/Migration/Sources/JSON.php
index 15e7b6aa..2abab762 100644
--- a/src/Migration/Sources/JSON.php
+++ b/src/Migration/Sources/JSON.php
@@ -201,14 +201,16 @@ protected function exportGroupFunctions(int $batchSize, array $resources): void
         throw new \Exception('Not Implemented');
     }
 
-    /**
-     * @throws \Exception
-     */
     protected function exportGroupMessaging(int $batchSize, array $resources): void
     {
         throw new \Exception('Not Implemented');
     }
 
+    protected function exportGroupBackups(int $batchSize, array $resources): void
+    {
+        throw new \Exception('Not Implemented');
+    }
+
     /**
      * @throws \Exception
      */
diff --git a/src/Migration/Sources/NHost.php b/src/Migration/Sources/NHost.php
index 4aac49f8..2f9fad01 100644
--- a/src/Migration/Sources/NHost.php
+++ b/src/Migration/Sources/NHost.php
@@ -947,6 +947,11 @@ protected function exportGroupMessaging(int $batchSize, array $resources): void
         throw new \Exception('Not Implemented');
     }
 
+    protected function exportGroupBackups(int $batchSize, array $resources): void
+    {
+        throw new \Exception('Not Implemented');
+    }
+
     protected function exportGroupSites(int $batchSize, array $resources): void
     {
         throw new \Exception('Not Implemented');
diff --git a/src/Migration/Transfer.php b/src/Migration/Transfer.php
index 561ff283..4a5a5887 100644
--- a/src/Migration/Transfer.php
+++ b/src/Migration/Transfer.php
@@ -26,6 +26,8 @@ class Transfer
 
     public const GROUP_MESSAGING = 'messaging';
 
+    public const GROUP_BACKUPS = 'backups';
+
     public const GROUP_AUTH_RESOURCES = [
         Resource::TYPE_USER,
         Resource::TYPE_TEAM,
@@ -95,6 +97,10 @@ class Transfer
         Resource::TYPE_MESSAGE,
     ];
 
+    public const GROUP_BACKUPS_RESOURCES = [
+        Resource::TYPE_BACKUP_POLICY,
+    ];
+
     public const ALL_PUBLIC_RESOURCES = [
         Resource::TYPE_USER,
         Resource::TYPE_TEAM,
@@ -116,6 +122,7 @@ class Transfer
         Resource::TYPE_TOPIC,
         Resource::TYPE_SUBSCRIBER,
         Resource::TYPE_MESSAGE,
+        Resource::TYPE_BACKUP_POLICY,
 
         // legacy
         Resource::TYPE_DOCUMENT,
@@ -399,6 +406,7 @@ public static function extractServices(array $services): array
                 self::GROUP_DATABASES_VECTOR_DB => array_merge($resources, self::GROUP_VECTORSDB_RESOURCES),
                 self::GROUP_SETTINGS => array_merge($resources, self::GROUP_SETTINGS_RESOURCES),
                 self::GROUP_MESSAGING => array_merge($resources, self::GROUP_MESSAGING_RESOURCES),
+                self::GROUP_BACKUPS => array_merge($resources, self::GROUP_BACKUPS_RESOURCES),
                 default => throw new \Exception('No service group found'),
             };
         }
diff --git a/tests/Migration/Unit/Adapters/MockDestination.php b/tests/Migration/Unit/Adapters/MockDestination.php
index fe1da710..3497888b 100644
--- a/tests/Migration/Unit/Adapters/MockDestination.php
+++ b/tests/Migration/Unit/Adapters/MockDestination.php
@@ -55,6 +55,7 @@ public static function getSupportedResources(): array
             Resource::TYPE_TOPIC,
             Resource::TYPE_SUBSCRIBER,
             Resource::TYPE_MESSAGE,
+            Resource::TYPE_BACKUP_POLICY,
         ];
     }
 
diff --git a/tests/Migration/Unit/Adapters/MockSource.php b/tests/Migration/Unit/Adapters/MockSource.php
index 889eeb3c..3ecd137d 100644
--- a/tests/Migration/Unit/Adapters/MockSource.php
+++ b/tests/Migration/Unit/Adapters/MockSource.php
@@ -85,6 +85,9 @@ public static function getSupportedResources(): array
             Resource::TYPE_SUBSCRIBER,
             Resource::TYPE_MESSAGE,
 
+            // Backups
+            Resource::TYPE_BACKUP_POLICY,
+
             // legacy
             Resource::TYPE_DOCUMENT,
             Resource::TYPE_ATTRIBUTE,
@@ -182,6 +185,23 @@ protected function exportGroupMessaging(int $batchSize, array $resources): void
         }
     }
 
+    /**
+     * Export Backups Group
+     *
+     * @param  int  $batchSize  Max 100
+     * @param  string[]  $resources  Resources to export
+     */
+    protected function exportGroupBackups(int $batchSize, array $resources): void
+    {
+        foreach (Transfer::GROUP_BACKUPS_RESOURCES as $resource) {
+            if (!\in_array($resource, $resources)) {
+                continue;
+            }
+
+            $this->handleResourceTransfer(Transfer::GROUP_BACKUPS, $resource);
+        }
+    }
+
     /**
      * Export Sites Group
      *