diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 8f3e0a4..b4e9013 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.15.0"
+  ".": "0.16.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index fdcf3f0..178efec 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 5
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/isaacus%2Fisaacus-3cce91df023b807a4471d16453720e5962966b270abd3eee54711d74cfbd092e.yml
-openapi_spec_hash: 5d9892dfcf03fd24c38775951636e5fb
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/isaacus%2Fisaacus-a9cacf65cf152a5f4fdd8de8d28c979452c67c28a7e765075638b817d330d121.yml
+openapi_spec_hash: 8343f878342e9d128695b85fecb93dc5
 config_hash: 7b8cddc2fa896f9ab05e6b05055c7f27
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d347780..0d660ee 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.16.0 (2026-02-04)
+
+Full Changelog: [v0.15.0...v0.16.0](https://github.com/isaacus-dev/isaacus-python/compare/v0.15.0...v0.16.0)
+
+### Features
+
+* **api:** add `children` fields to hierarchical ILGS entities ([38c909c](https://github.com/isaacus-dev/isaacus-python/commit/38c909ccd36352f6d774081c4184b117ef26911a))
+
 ## 0.15.0 (2026-02-04)
 
 Full Changelog: [v0.14.0...v0.15.0](https://github.com/isaacus-dev/isaacus-python/compare/v0.14.0...v0.15.0)
diff --git a/pyproject.toml b/pyproject.toml
index ae463ce..0ea4b13 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "isaacus"
-version = "0.15.0"
+version = "0.16.0"
 description = "The official Python library for the isaacus API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/isaacus/_version.py b/src/isaacus/_version.py
index 4f531e6..d65d638 100644
--- a/src/isaacus/_version.py
+++ b/src/isaacus/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "isaacus"
-__version__ = "0.15.0"  # x-release-please-version
+__version__ = "0.16.0"  # x-release-please-version
diff --git a/src/isaacus/types/ilgs/v1/location.py b/src/isaacus/types/ilgs/v1/location.py
index 6f4bbd1..facd492 100644
--- a/src/isaacus/types/ilgs/v1/location.py
+++ b/src/isaacus/types/ilgs/v1/location.py
@@ -46,6 +46,12 @@ class Location(BaseModel):
     is a non-negative incrementing integer starting from zero.
     """
 
+    children: List[str]
+    """
+    The unique identifiers of any 'child' locations having this location as their
+    immediate parent.
+    """
+
     mentions: List[Span]
     """
     An array of one or more spans within the document's text where the location is
diff --git a/src/isaacus/types/ilgs/v1/person.py b/src/isaacus/types/ilgs/v1/person.py
index 42384a7..3b1855f 100644
--- a/src/isaacus/types/ilgs/v1/person.py
+++ b/src/isaacus/types/ilgs/v1/person.py
@@ -182,6 +182,12 @@ class Person(BaseModel):
     `{index}` is a non-negative incrementing integer starting from zero.
     """
 
+    children: List[str]
+    """
+    The unique identifiers of any persons having this person as their immediate
+    parent.
+    """
+
     residence: Optional[str] = None
     """
     A unique identifier for a location in the format `loc:{index}` where `{index}`
diff --git a/src/isaacus/types/ilgs/v1/segment.py b/src/isaacus/types/ilgs/v1/segment.py
index f99e505..3ca21d2 100644
--- a/src/isaacus/types/ilgs/v1/segment.py
+++ b/src/isaacus/types/ilgs/v1/segment.py
@@ -1,6 +1,6 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
-from typing import Optional
+from typing import List, Optional
 from typing_extensions import Literal
 
 from .span import Span
@@ -188,6 +188,12 @@ class Segment(BaseModel):
     a non-negative incrementing integer starting from zero.
     """
 
+    children: List[str]
+    """
+    The unique identifiers of any segments having this segment as their immediate
+    parent.
+    """
+
     level: int
     """
     The level of the segment within the document's segment hierarchy starting from