diff --git a/src/apify_client/_models.py b/src/apify_client/_models.py
index bda16b58..feb9fefa 100644
--- a/src/apify_client/_models.py
+++ b/src/apify_client/_models.py
@@ -206,7 +206,7 @@ class ActorDefinition(BaseModel):
     storages: Storages | None = None
     default_memory_mbytes: str | int | None = None
     """
-    Specifies the default amount of memory in megabytes to be used when the Actor is started. Can be an integer or a [dynamic memory expression](https://docs.apify.com/platform/actors/development/actor-definition/dynamic-actor-memory).
+    Specifies the default amount of memory in megabytes to be used when the Actor is started. Can be an integer or a [dynamic memory expression](https://docs.apify.com/actors/development/actor-definition/dynamic-actor-memory).
     """
     min_memory_mbytes: Annotated[int | None, Field(ge=128)] = None
     """
@@ -852,7 +852,7 @@ class Dataset(BaseModel):
         ),
     ] = None
     """
-    Defines the schema of items in your dataset, the full specification can be found in [Apify docs](https://docs.apify.com/platform/actors/development/actor-definition/dataset-schema)
+    Defines the schema of items in your dataset, the full specification can be found in [Apify docs](https://docs.apify.com/actors/development/actor-definition/dataset-schema)
     """
     console_url: Annotated[AnyUrl, Field(examples=['https://console.apify.com/storage/datasets/27TmTznX9YPeAYhkC'])]
     items_public_url: Annotated[
@@ -2043,31 +2043,33 @@ class Plan(BaseModel):
         populate_by_name=True,
         alias_generator=to_camel,
     )
-    id: Annotated[str, Field(examples=['Personal'])]
-    description: Annotated[str, Field(examples=['Cost-effective plan for freelancers, developers and students.'])]
-    is_enabled: Annotated[bool, Field(examples=[True])]
-    monthly_base_price_usd: Annotated[float, Field(examples=[49])]
-    monthly_usage_credits_usd: Annotated[float, Field(examples=[49])]
+    id: Annotated[str | None, Field(examples=['Personal'])] = None
+    description: Annotated[
+        str | None, Field(examples=['Cost-effective plan for freelancers, developers and students.'])
+    ] = None
+    is_enabled: Annotated[bool | None, Field(examples=[True])] = None
+    monthly_base_price_usd: Annotated[float | None, Field(examples=[49])] = None
+    monthly_usage_credits_usd: Annotated[float | None, Field(examples=[49])] = None
     usage_discount_percent: Annotated[float | None, Field(examples=[0])] = None
     enabled_platform_features: Annotated[
-        list[str], Field(examples=[['ACTORS', 'STORAGE', 'PROXY_SERPS', 'SCHEDULER', 'WEBHOOKS']])
-    ]
-    max_monthly_usage_usd: Annotated[float, Field(examples=[9999])]
-    max_actor_memory_gbytes: Annotated[float, Field(examples=[32])]
-    max_monthly_actor_compute_units: Annotated[float, Field(examples=[1000])]
-    max_monthly_residential_proxy_gbytes: Annotated[float, Field(examples=[10])]
-    max_monthly_proxy_serps: Annotated[int, Field(examples=[30000])]
-    max_monthly_external_data_transfer_gbytes: Annotated[float, Field(examples=[1000])]
-    max_actor_count: Annotated[int, Field(examples=[100])]
-    max_actor_task_count: Annotated[int, Field(examples=[1000])]
-    data_retention_days: Annotated[int, Field(examples=[14])]
+        list[str] | None, Field(examples=[['ACTORS', 'STORAGE', 'PROXY_SERPS', 'SCHEDULER', 'WEBHOOKS']])
+    ] = None
+    max_monthly_usage_usd: Annotated[float | None, Field(examples=[9999])] = None
+    max_actor_memory_gbytes: Annotated[float | None, Field(examples=[32])] = None
+    max_monthly_actor_compute_units: Annotated[float | None, Field(examples=[1000])] = None
+    max_monthly_residential_proxy_gbytes: Annotated[float | None, Field(examples=[10])] = None
+    max_monthly_proxy_serps: Annotated[int | None, Field(examples=[30000])] = None
+    max_monthly_external_data_transfer_gbytes: Annotated[float | None, Field(examples=[1000])] = None
+    max_actor_count: Annotated[int | None, Field(examples=[100])] = None
+    max_actor_task_count: Annotated[int | None, Field(examples=[1000])] = None
+    data_retention_days: Annotated[int | None, Field(examples=[14])] = None
     available_proxy_groups: dict[str, int]
     """
     The number of available proxies in this group.
     """
-    team_account_seat_count: Annotated[int, Field(examples=[1])]
-    support_level: Annotated[str, Field(examples=['COMMUNITY'])]
-    available_add_ons: Annotated[list[str], Field(examples=[[]])]
+    team_account_seat_count: Annotated[int | None, Field(examples=[1])] = None
+    support_level: Annotated[str | None, Field(examples=['COMMUNITY'])] = None
+    available_add_ons: Annotated[list[str] | None, Field(examples=[[]])] = None
     tier: Annotated[str | None, Field(examples=['FREE'])] = None
     api_rate_limit_boosts: Annotated[int | None, Field(examples=[0])] = None
     max_schedule_count: Annotated[int | None, Field(examples=[100])] = None
@@ -3268,8 +3270,8 @@ class StoreListActor(BaseModel):
     title: Annotated[str, Field(examples=['My Public Actor'])]
     name: Annotated[str, Field(examples=['my-public-actor'])]
     username: Annotated[str, Field(examples=['jane35'])]
-    user_full_name: Annotated[str, Field(examples=['Jane H. Doe'])]
-    description: Annotated[str, Field(examples=['My public actor!'])]
+    user_full_name: Annotated[str | None, Field(examples=['Jane H. Doe'])] = None
+    description: Annotated[str | None, Field(examples=['My public actor!'])] = None
     categories: Annotated[list[str] | None, Field(examples=[['MARKETING', 'LEAD_GENERATION']])] = None
     notice: str | None = None
     picture_url: Annotated[AnyUrl | None, Field(examples=['https://...'])] = None
@@ -3584,7 +3586,7 @@ class UpdateLimitsRequest(BaseModel):
     """
     data_retention_days: Annotated[int | None, Field(examples=[90])] = None
     """
-    Apify securely stores your ten most recent Actor runs indefinitely, ensuring they are always accessible. Unnamed storages and other Actor runs are automatically deleted after the retention period. If you're subscribed, you can change it to keep data for longer or to limit your usage. [Lear more](https://docs.apify.com/platform/storage/usage#data-retention).
+    Apify securely stores your ten most recent Actor runs indefinitely, ensuring they are always accessible. Unnamed storages and other Actor runs are automatically deleted after the retention period. If you're subscribed, you can change it to keep data for longer or to limit your usage. [Lear more](https://docs.apify.com/storage#data-retention).
 
     """
 
@@ -3681,14 +3683,14 @@ class UserPrivateInfo(BaseModel):
         populate_by_name=True,
         alias_generator=to_camel,
     )
-    id: Annotated[str, Field(examples=['YiKoxjkaS9gjGTqhF'])]
+    id: Annotated[str | None, Field(examples=['YiKoxjkaS9gjGTqhF'])] = None
     username: Annotated[str, Field(examples=['myusername'])]
-    profile: Profile
-    email: Annotated[EmailStr, Field(examples=['bob@example.com'])]
+    profile: Profile | None = None
+    email: Annotated[EmailStr | None, Field(examples=['bob@example.com'])] = None
     proxy: Proxy
     plan: Plan
     effective_platform_features: EffectivePlatformFeatures
-    created_at: Annotated[AwareDatetime, Field(examples=['2022-11-29T14:48:29.381Z'])]
+    created_at: Annotated[AwareDatetime | None, Field(examples=['2022-11-29T14:48:29.381Z'])] = None
     is_paying: Annotated[bool, Field(examples=[True])]
 
 
@@ -3757,7 +3759,7 @@ class Version(BaseModel):
     """
     build_tag: Annotated[str | None, Field(examples=['latest'])] = None
     """
-    The tag name to apply to a successful build of this version.
+    The tag name to apply to a successful build of this version. Can be `null` when the version has no build tag.
     """
     source_files: Annotated[list[SourceCodeFile | SourceCodeFolder] | None, Field(title='VersionSourceFiles')] = None
     """