diff --git a/README.md b/README.md
index 591bba7..440efd4 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@ while being easy to understand for people without knowledge of the jsonapi stand
 The JSON:API standard makes it easy for clients to fetch multiple resources in one call and understand the relations between them.
 Read more about it at [jsonapi.org](https://jsonapi.org/).
 
+The library's code uses strict typing and is checked against a high standard in phpstan and rector. It is tested extensively with 99% coverage.
+
 
 ## Installation
 
@@ -19,9 +21,9 @@ composer require alsvanzelf/jsonapi
 
 The library requires php 8.2. Use the latest [v2.x release](/releases/tag/v2.5.0) for lower php versions.
 
-#### Upgrading from v1
+#### Upgrading from v1 or v2
 
-If you used v1 of this library, see [UPGRADE_1_TO_2.md](/UPGRADE_1_TO_2.md) on how to upgrade.
+If you used v1 or v2 of this library, see [UPGRADE_1_TO_2.md](/UPGRADE_1_TO_2.md) or [UPGRADE_2_TO_3.md](/UPGRADE_1_TO_2.md) on how to upgrade.
 
 
 
diff --git a/UPGRADE_2_TO_3.md b/UPGRADE_2_TO_3.md
index 8940a24..cc8e1e0 100644
--- a/UPGRADE_2_TO_3.md
+++ b/UPGRADE_2_TO_3.md
@@ -1,43 +1,70 @@
 # Upgrade from library v2 to v3
 
-## Checking links, ...
+## Enums
 
-Objects more often use uninitialized properties. `has*()` helper methods have been added to support the new flow.
+All constants have been replaced by enums.
 
-- `$object->links` to `if ($object->hasLinks()) $object->links`
+Content types:
+- `Document::CONTENT_TYPE_OFFICIAL` (`'application/vnd.api+json'`) to `ContentTypeEnum::Official`
+- `Document::CONTENT_TYPE_DEBUG` (`'application/json'`) to `ContentTypeEnum::Debug`
+- `Document::CONTENT_TYPE_JSONP` (`'application/javascript'`) to `ContentTypeEnum::Jsonp`
 
-## Interfaces
+Jsonapi versions:
+- `Document::JSONAPI_VERSION_1_0` (`'1.0'`) to `JsonapiVersionEnum::V_1_0`
+- `Document::JSONAPI_VERSION_1_1` (`'1.1'`) to `JsonapiVersionEnum::V_1_1`
+- `Document::JSONAPI_VERSION_LATEST` (`'1.1'`) to `JsonapiVersionEnum::latest()` (still refering to v1.1)
 
-When extending interfaces, you'll have to add method argument types and return types.
+Document levels:
+- `Document::LEVEL_ROOT` (`'root'`) to `DocumentLevelEnum::Root`
+- `Document::LEVEL_JSONAPI` (`'jsonapi'`) to `DocumentLevelEnum::Jsonapi`
+- `Document::LEVEL_Resource` (`'resource'`) to `DocumentLevelEnum::Resource`
 
-Check [all interfaces](/src/interfaces) for the correct typing.
+Sorting orders (as return value in the `order` field from `RequestParser->getSortFields()`):
+- `RequestParser::SORT_ASCENDING` (`'ascending'`) to `SortOrderEnum::Ascending`
+- `RequestParser::SORT_DESCENDING` (`'descending'`) to `SortOrderEnum::Descending`
 
-## Enums
+Relationship types:
+- `RelationshipObject::TO_ONE` (`'one'`) to `RelationshipTypeEnum::ToOne`
+- `RelationshipObject::TO_MANY` (`'many'`) to `RelationshipTypeEnum::ToMany`
 
-Content types:
-- `Document::CONTENT_TYPE_OFFICIAL` to `ContentTypeEnum::Official`
-- `Document::CONTENT_TYPE_DEBUG` to `ContentTypeEnum::Debug`
-- `Document::CONTENT_TYPE_JSONP` to `ContentTypeEnum::Jsonp`
+Validator object containers (only used internally):
+- `Validator::OBJECT_CONTAINER_*` to `ObjectContainerEnum::*`
 
-Jsonapi versions:
-- `Document::JSONAPI_VERSION_1_0` to `JsonapiVersionEnum::V_1_0`
-- `Document::JSONAPI_VERSION_1_1` to `JsonapiVersionEnum::V_1_1`
-- `Document::JSONAPI_VERSION_LATEST` to `JsonapiVersionEnum::Latest`
 
-Document levels:
-- `Document::LEVEL_ROOT` to `DocumentLevelEnum::Root`
-- `Document::LEVEL_JSONAPI` to `DocumentLevelEnum::Jsonapi`
-- `Document::LEVEL_Resource` to `DocumentLevelEnum::Resource`
+## Strict type checking
 
-Sorting orders:
-- `RequestParser->getSortFields()` returns a `SortOrderEnum` instead of `string` for the `order` field
+When using the library you shouldn't notice this unless passing values of the wrong type. When extending the library you probably will notice this when overriding methods.
 
-Relationship types:
-- `RelationshipObject::TO_ONE` to `RelationshipTypeEnum::ToOne`
-- `RelationshipObject::TO_MANY` to `RelationshipTypeEnum::ToMany`
+In both cases the upgrade is relatively easy, you can just follow php's type errors. Using phpstan will also help you find typing mismatches.
 
-## Internal
+Some invalid types were already checked at run-time and threw library exceptions. This now changed into php type errors.
 
-Enums:
-- `RequestParser::SORT_*` to `SortOrderEnum::*`
-- `Validator::OBJECT_CONTAINER_*` to `ObjectContainerEnum::*`
+
+## Object properties are uninitialized by default
+
+Objects more often use uninitialized properties. In some cases, `has*()` helper methods have been added to support the new flow. Otherwise, an `isset()` can be used if needed.
+
+_This should only affect you when you extend the libraries classes. Otherwise you can just use the library methods to handle these properties._
+
+- `->links`, on `Document`, `ErrorObject`, `RelationshipObject`, `ResourceObject`, can be checked with `->hasLinks()`
+- `Document`: `->httpStatusCode`, `->jsonapi`, `->meta`
+- `ErrorObject`: `->id`, `->code`, `->title`, `->detail`, `->meta`, `->httpStatusCode`
+- `JsonapiObject`: `->meta`, `->version`
+- `LinkObject`: `->href`, `->rel`, `->describedby`, `->title`, `->type`, `->meta`
+- `RelationshipObject`: `->meta`, `->resource`, `->type`
+- `ResourceDocument`: `->resource`
+- `ResourceIdentifierObject`: `->type`, `->id`, `->lid`, `->meta`, `->validator`
+- `ResourceObject`: `->attributes`, `->relationships`
+
+
+## Json encoding and decoding errors
+
+The default encoding options changed to also include `JSON_THROW_ON_ERROR`. Failure to encode already used to throw an exception, but now it will default to a `\JsonException`.
+
+
+## Removed deprecations
+
+- Old v1-style classes (`base.php`, `collection.php`, `error.php`, `errors.php`, `exception.php`, `resource.php`, `response.php`)
+- Array-style links (`->appendLink()`, `->addLinksArray()`, `->appendLinkObject()`, `ErrorObject->appendTypeLink()`, `LinksArray`, `LinksObject->append()`)
+- `CursorPaginationProfile->getKeyword()`
+- `Converter::mergeProfilesInContentType()`, use `Converter::prepareContentType()` instead
diff --git a/composer.lock b/composer.lock
index c3d435c..9371fd3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -69,16 +69,16 @@
         },
         {
             "name": "nikic/php-parser",
-            "version": "v5.6.2",
+            "version": "v5.7.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/PHP-Parser.git",
-                "reference": "3a454ca033b9e06b63282ce19562e892747449bb"
+                "reference": "dca41cd15c2ac9d055ad70dbfd011130757d1f82"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/3a454ca033b9e06b63282ce19562e892747449bb",
-                "reference": "3a454ca033b9e06b63282ce19562e892747449bb",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/dca41cd15c2ac9d055ad70dbfd011130757d1f82",
+                "reference": "dca41cd15c2ac9d055ad70dbfd011130757d1f82",
                 "shasum": ""
             },
             "require": {
@@ -121,9 +121,9 @@
             ],
             "support": {
                 "issues": "https://github.com/nikic/PHP-Parser/issues",
-                "source": "https://github.com/nikic/PHP-Parser/tree/v5.6.2"
+                "source": "https://github.com/nikic/PHP-Parser/tree/v5.7.0"
             },
-            "time": "2025-10-21T19:32:17+00:00"
+            "time": "2025-12-06T11:56:16+00:00"
         },
         {
             "name": "phar-io/manifest",
@@ -293,11 +293,11 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.32",
+            "version": "2.1.33",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e126cad1e30a99b137b8ed75a85a676450ebb227",
-                "reference": "e126cad1e30a99b137b8ed75a85a676450ebb227",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/9e800e6bee7d5bd02784d4c6069b48032d16224f",
+                "reference": "9e800e6bee7d5bd02784d4c6069b48032d16224f",
                 "shasum": ""
             },
             "require": {
@@ -342,7 +342,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-11-11T15:18:17+00:00"
+            "time": "2025-12-05T10:24:31+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",
@@ -393,16 +393,16 @@
         },
         {
             "name": "phpstan/phpstan-phpunit",
-            "version": "2.0.8",
+            "version": "2.0.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan-phpunit.git",
-                "reference": "2fe9fbeceaf76dd1ebaa7bbbb25e2fb5e59db2fe"
+                "reference": "5e30669bef866eff70db8b58d72a5c185aa82414"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/2fe9fbeceaf76dd1ebaa7bbbb25e2fb5e59db2fe",
-                "reference": "2fe9fbeceaf76dd1ebaa7bbbb25e2fb5e59db2fe",
+                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/5e30669bef866eff70db8b58d72a5c185aa82414",
+                "reference": "5e30669bef866eff70db8b58d72a5c185aa82414",
                 "shasum": ""
             },
             "require": {
@@ -440,9 +440,9 @@
             "description": "PHPUnit extensions and rules for PHPStan",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan-phpunit/issues",
-                "source": "https://github.com/phpstan/phpstan-phpunit/tree/2.0.8"
+                "source": "https://github.com/phpstan/phpstan-phpunit/tree/2.0.11"
             },
-            "time": "2025-11-11T07:55:22+00:00"
+            "time": "2025-12-19T09:05:35+00:00"
         },
         {
             "name": "phpstan/phpstan-strict-rules",
@@ -494,23 +494,23 @@
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "12.5.0",
+            "version": "12.5.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "bca180c050dd3ae15f87c26d25cabb34fe1a0a5a"
+                "reference": "4a9739b51cbcb355f6e95659612f92e282a7077b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/bca180c050dd3ae15f87c26d25cabb34fe1a0a5a",
-                "reference": "bca180c050dd3ae15f87c26d25cabb34fe1a0a5a",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/4a9739b51cbcb355f6e95659612f92e282a7077b",
+                "reference": "4a9739b51cbcb355f6e95659612f92e282a7077b",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-libxml": "*",
                 "ext-xmlwriter": "*",
-                "nikic/php-parser": "^5.6.2",
+                "nikic/php-parser": "^5.7.0",
                 "php": ">=8.3",
                 "phpunit/php-file-iterator": "^6.0",
                 "phpunit/php-text-template": "^5.0",
@@ -518,10 +518,10 @@
                 "sebastian/environment": "^8.0.3",
                 "sebastian/lines-of-code": "^4.0",
                 "sebastian/version": "^6.0",
-                "theseer/tokenizer": "^1.3.1"
+                "theseer/tokenizer": "^2.0.1"
             },
             "require-dev": {
-                "phpunit/phpunit": "^12.4.4"
+                "phpunit/phpunit": "^12.5.1"
             },
             "suggest": {
                 "ext-pcov": "PHP extension that provides line coverage",
@@ -559,7 +559,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
                 "security": "https://github.com/sebastianbergmann/php-code-coverage/security/policy",
-                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/12.5.0"
+                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/12.5.2"
             },
             "funding": [
                 {
@@ -579,7 +579,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-11-29T07:15:54+00:00"
+            "time": "2025-12-24T07:03:04+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -828,16 +828,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "12.4.4",
+            "version": "12.5.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "9253ec75a672e39fcc9d85bdb61448215b8162c7"
+                "reference": "4ba0e923f9d3fc655de22f9547c01d15a41fc93a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/9253ec75a672e39fcc9d85bdb61448215b8162c7",
-                "reference": "9253ec75a672e39fcc9d85bdb61448215b8162c7",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/4ba0e923f9d3fc655de22f9547c01d15a41fc93a",
+                "reference": "4ba0e923f9d3fc655de22f9547c01d15a41fc93a",
                 "shasum": ""
             },
             "require": {
@@ -851,7 +851,7 @@
                 "phar-io/manifest": "^2.0.4",
                 "phar-io/version": "^3.2.1",
                 "php": ">=8.3",
-                "phpunit/php-code-coverage": "^12.4.0",
+                "phpunit/php-code-coverage": "^12.5.1",
                 "phpunit/php-file-iterator": "^6.0.0",
                 "phpunit/php-invoker": "^6.0.0",
                 "phpunit/php-text-template": "^5.0.0",
@@ -873,7 +873,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "12.4-dev"
+                    "dev-main": "12.5-dev"
                 }
             },
             "autoload": {
@@ -905,7 +905,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/12.4.4"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/12.5.4"
             },
             "funding": [
                 {
@@ -929,7 +929,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-11-21T07:39:11+00:00"
+            "time": "2025-12-15T06:05:34+00:00"
         },
         {
             "name": "psr/http-message",
@@ -986,21 +986,21 @@
         },
         {
             "name": "rector/rector",
-            "version": "2.2.9",
+            "version": "2.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/rectorphp/rector.git",
-                "reference": "0b8e49ec234877b83244d2ecd0df7a4c16471f05"
+                "reference": "f7166355dcf47482f27be59169b0825995f51c7d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/rectorphp/rector/zipball/0b8e49ec234877b83244d2ecd0df7a4c16471f05",
-                "reference": "0b8e49ec234877b83244d2ecd0df7a4c16471f05",
+                "url": "https://api.github.com/repos/rectorphp/rector/zipball/f7166355dcf47482f27be59169b0825995f51c7d",
+                "reference": "f7166355dcf47482f27be59169b0825995f51c7d",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.4|^8.0",
-                "phpstan/phpstan": "^2.1.32"
+                "phpstan/phpstan": "^2.1.33"
             },
             "conflict": {
                 "rector/rector-doctrine": "*",
@@ -1034,7 +1034,7 @@
             ],
             "support": {
                 "issues": "https://github.com/rectorphp/rector/issues",
-                "source": "https://github.com/rectorphp/rector/tree/2.2.9"
+                "source": "https://github.com/rectorphp/rector/tree/2.3.0"
             },
             "funding": [
                 {
@@ -1042,7 +1042,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-11-28T14:21:22+00:00"
+            "time": "2025-12-25T22:00:18+00:00"
         },
         {
             "name": "rector/swiss-knife",
@@ -2121,23 +2121,23 @@
         },
         {
             "name": "theseer/tokenizer",
-            "version": "1.3.1",
+            "version": "2.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "b7489ce515e168639d17feec34b8847c326b0b3c"
+                "reference": "7989e43bf381af0eac72e4f0ca5bcbfa81658be4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/b7489ce515e168639d17feec34b8847c326b0b3c",
-                "reference": "b7489ce515e168639d17feec34b8847c326b0b3c",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/7989e43bf381af0eac72e4f0ca5bcbfa81658be4",
+                "reference": "7989e43bf381af0eac72e4f0ca5bcbfa81658be4",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-tokenizer": "*",
                 "ext-xmlwriter": "*",
-                "php": "^7.2 || ^8.0"
+                "php": "^8.1"
             },
             "type": "library",
             "autoload": {
@@ -2159,7 +2159,7 @@
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
             "support": {
                 "issues": "https://github.com/theseer/tokenizer/issues",
-                "source": "https://github.com/theseer/tokenizer/tree/1.3.1"
+                "source": "https://github.com/theseer/tokenizer/tree/2.0.1"
             },
             "funding": [
                 {
@@ -2167,7 +2167,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-11-17T20:03:58+00:00"
+            "time": "2025-12-08T11:19:18+00:00"
         }
     ],
     "aliases": [],
diff --git a/rector.php b/rector.php
index 4d2b6b9..9502f76 100644
--- a/rector.php
+++ b/rector.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-use Rector\CodeQuality\Rector\FuncCall\SortNamedParamRector;
+use Rector\CodeQuality\Rector\FuncCall\SortCallLikeNamedArgsRector;
 use Rector\CodeQuality\Rector\FunctionLike\SimplifyUselessVariableRector;
 use Rector\CodeQuality\Rector\Identical\FlipTypeControlToUseExclusiveTypeRector;
 use Rector\CodeQuality\Rector\If_\SimplifyIfReturnBoolRector;
@@ -45,7 +45,7 @@
 		DocblockGetterReturnArrayFromPropertyDocblockVarRector::class,
 		
 		// better readability using function declaration sorting
-		SortNamedParamRector::class,
+		SortCallLikeNamedArgsRector::class,
 		
 		// explicit testing private properties
 		RemoveUnusedPrivatePropertyRector::class => [
diff --git a/src/Document.php b/src/Document.php
index 3af54d9..d21df25 100644
--- a/src/Document.php
+++ b/src/Document.php
@@ -274,7 +274,7 @@ public function toJson(array $options=[]): string {
 		
 		// we can't use exceptions because $options['encodeOptions'] might be overridden to silence them
 		if ($json === false) {
-			throw new Exception('failed to encode json: '.json_last_error_msg());
+			throw new Exception('failed to generate json: '.json_last_error_msg());
 		}
 		
 		if ($options['jsonpCallback'] !== null) {
@@ -309,7 +309,6 @@ public function sendResponse(array $options=[]): void {
 	/**
 	 * @return array<string, mixed>
 	 */
-	#[\ReturnTypeWillChange]
 	public function jsonSerialize(): array {
 		return $this->toArray();
 	}
diff --git a/src/enums/JsonapiVersionEnum.php b/src/enums/JsonapiVersionEnum.php
index 1a7186a..3d1d5cd 100644
--- a/src/enums/JsonapiVersionEnum.php
+++ b/src/enums/JsonapiVersionEnum.php
@@ -7,5 +7,16 @@
 enum JsonapiVersionEnum: string {
 	case V_1_0  = '1.0';
 	case V_1_1  = '1.1';
-	case Latest = self::V_1_1->value;
+	
+	/**
+	 * @internal for public use {@see self::latest()}
+	 * 
+	 * this value is used as a default value for JsonapiObject's constructor
+	 * since (enum) functions can't be used as default argument values
+	 */
+	case Latest = 'latest';
+	
+	public static function latest(): self {
+		return self::V_1_1;
+	}
 }
diff --git a/src/enums/ObjectContainerEnum.php b/src/enums/ObjectContainerEnum.php
index d2258c0..c5f61ae 100644
--- a/src/enums/ObjectContainerEnum.php
+++ b/src/enums/ObjectContainerEnum.php
@@ -7,10 +7,10 @@
 /**
  * @internal
  */
-enum ObjectContainerEnum: string {
-	case Type          = 'type';
-	case Id            = 'id';
-	case Lid           = 'lid';
-	case Attributes    = 'attributes';
-	case Relationships = 'relationships';
+enum ObjectContainerEnum {
+	case Type;
+	case Id;
+	case Lid;
+	case Attributes;
+	case Relationships;
 }
diff --git a/src/helpers/Validator.php b/src/helpers/Validator.php
index 981168c..c9fef0f 100644
--- a/src/helpers/Validator.php
+++ b/src/helpers/Validator.php
@@ -56,7 +56,7 @@ public function claimUsedFields(array $fieldNames, ObjectContainerEnum $objectCo
 				continue;
 			}
 			
-			throw new DuplicateException('field name "'.$fieldName.'" already in use at "data.'.$this->usedFields[$fieldName]->value.'"');
+			throw new DuplicateException('field name "'.$fieldName.'" already in use at "data.'.$this->usedFields[$fieldName]->name.'"');
 		}
 	}
 	
diff --git a/src/objects/JsonapiObject.php b/src/objects/JsonapiObject.php
index 1ee5197..68d4671 100644
--- a/src/objects/JsonapiObject.php
+++ b/src/objects/JsonapiObject.php
@@ -95,6 +95,10 @@ public function toArray(): array {
 			$array = [...$array, ...$this->getExtensionMembers()];
 		}
 		if (isset($this->version)) {
+			if ($this->version === JsonapiVersionEnum::Latest) {
+				$this->version = JsonapiVersionEnum::latest();
+			}
+			
 			$array['version'] = $this->version->value;
 		}
 		if ($this->extensions !== []) {
diff --git a/tests/DocumentTest.php b/tests/DocumentTest.php
index c166f27..9a31efe 100644
--- a/tests/DocumentTest.php
+++ b/tests/DocumentTest.php
@@ -309,7 +309,7 @@ public function testToJson_InvalidUtf8CustomException(): void {
 		$options = ['array' => ['foo' => "\xB1\x31"], 'encodeOptions' => JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE];
 		
 		$this->expectException(Exception::class);
-		$this->expectExceptionMessage('failed to encode json: Malformed UTF-8 characters, possibly incorrectly encoded');
+		$this->expectExceptionMessage('failed to generate json: Malformed UTF-8 characters, possibly incorrectly encoded');
 		
 		$this->document->toJson($options);
 	}