diff --git a/.gitignore b/.gitignore
index 4c847ef9..680d5e33 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 /dist
 /coverage
 /.nyc_output
+/.vscode
 tsdoc-metadata.json
 package-lock.json
 .eslintcache
diff --git a/.npmignore b/.npmignore
index 826ea157..6a268798 100644
--- a/.npmignore
+++ b/.npmignore
@@ -7,6 +7,7 @@
 /coverage
 /.nyc_output
 /.github
+/.vscode
 /bin
 .eslintcache
 .eslintignore
diff --git a/CHANGES.md b/CHANGES.md
index db78cbf9..9bd439b6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,8 +1,24 @@
 
 Version ?.?.? - yyyy-mm-dd
 
-- The maximum number of issues that are reported for a single glTF asset is now limited (via [#291](https://github.com/CesiumGS/3d-tiles-validator/pull/291)).
-- When the number of bytes that are required for a certain property texture property did not match the number of `channels`, then the validator reported this as an `ERROR`, with the type `TEXTURE_CHANNELS_OUT_OF_RANGE`. This could cause errors to be reported for the case of 16-bit channels in textures, where these numbers do not have to match. Now, these cases are only reported as a `WARNING`, of the type `TEXTURE_CHANNELS_SIZE_MISMATCH`.
+- ...
+
+Version 0.5.1 - 2024-12-05
+
+- The maximum number of issues that are reported for a single glTF asset is now limited ([#291](https://github.com/CesiumGS/3d-tiles-validator/pull/291)).
+- When the number of bytes that are required for a certain property texture property did not match the number of `channels`, then the validator reported this as an `ERROR`, with the type `TEXTURE_CHANNELS_OUT_OF_RANGE`. This could cause errors to be reported for the case of 16-bit channels in textures, where these numbers do not have to match. Now, these cases are only reported as a `WARNING`, of the type `TEXTURE_CHANNELS_SIZE_MISMATCH` ([#293](https://github.com/CesiumGS/3d-tiles-validator/pull/293)).
+- The `refine` property for tiles is optional in general, but _required_ for the root tile. The validator did not check this. Now, it reports a  `TILE_REFINE_MISSING_IN_ROOT` error when the `refine` property is missing in a root tile ([#303](https://github.com/CesiumGS/3d-tiles-validator/pull/303)).
+- When encountering an invalid alignment in the binary data of legacy tile content files, the validator stopped the validation of these files, and only reported a `BINARY_INVALID_ALIGNMENT` error. Now, it will try to process the data despite the invalid alignment, and perform further validation steps, for example, of the binary glTF data ([#304](https://github.com/CesiumGS/3d-tiles-validator/pull/304)).
+- Fixed a bug where the validator erroneously reported validation error when external tilesets did not use extensions that had been declared in the `extensionsUsed` of the containing tileset ([#305](https://github.com/CesiumGS/3d-tiles-validator/pull/305)).
+- Added a convenience function to the `ValidationResult` class, to easily deserialize and post-process validation reports ([#307](https://github.com/CesiumGS/3d-tiles-validator/pull/307)).
+- Fixed a bug where the default value for `texCoord` properties of property texture was not handled properly ([#309](https://github.com/CesiumGS/3d-tiles-validator/pull/309)).
+- Added the option to define a severity threshold for content validation issues. Setting the `contentValidationIssueSeverity` in the validation config file will omit all content validation issues that are below this severity threshold ([#310](https://github.com/CesiumGS/3d-tiles-validator/pull/310)).
+- Fixed a bug where the validator reported an error for binary `.subtree` files that did not contain any buffers ([#313](https://github.com/CesiumGS/3d-tiles-validator/pull/313)).
+- Added support for the validation of the `NGA_gpm_local` glTF extension ([#316](https://github.com/CesiumGS/3d-tiles-validator/pull/316)).
+- Added support for the validation of the `NGA_gpm` 3D Tiles extension ([#319](https://github.com/CesiumGS/3d-tiles-validator/pull/319)).
+- Fixed a bug where the validator erroneously reported a `BOUNDING_VOLUMES_INCONSISTENT` error when a tile with a `transform` contained a `content` with a `boundingVolume` ([#322](https://github.com/CesiumGS/3d-tiles-validator/pull/322)).
+- Updated the underlying `3d-tiles-tools` dependency to include a fix for a bug where the validator reported an `INTERNAL_ERROR` when trying to validate a tileset that contains glTF that use the `EXT_meshopt_compression` extension ([#323](https://github.com/CesiumGS/3d-tiles-validator/issues/323)).
+- Fixed a bug where the semantics that are referred to as 'General Semantics' in the 3D Metadata Semantic Reference had been reported to be unknown with a `METADATA_SEMANTIC_UNKNOWN` message ([#325](https://github.com/CesiumGS/3d-tiles-validator/pull/325)).
 
 Version 0.5.0 - 2023-10-24
 
diff --git a/ThirdParty.json b/ThirdParty.json
index 5670710e..60e6a524 100644
--- a/ThirdParty.json
+++ b/ThirdParty.json
@@ -4,7 +4,7 @@
     "license": [
       "Apache-2.0"
     ],
-    "version": "0.4.2",
+    "version": "0.4.4",
     "url": "https://www.npmjs.com/package/3d-tiles-tools"
   },
   {
@@ -36,7 +36,7 @@
     "license": [
       "Apache-2.0"
     ],
-    "version": "1.117.0",
+    "version": "1.124.0",
     "url": "https://www.npmjs.com/package/cesium"
   },
   {
@@ -44,7 +44,7 @@
     "license": [
       "Apache-2.0"
     ],
-    "version": "2.0.0-dev.3.9",
+    "version": "2.0.0-dev.3.10",
     "url": "https://www.npmjs.com/package/gltf-validator"
   },
   {
diff --git a/package.json b/package.json
index b53fbf4e..d5aee43c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "3d-tiles-validator",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "license": "Apache-2.0",
   "description": "Tools for validating 3D Tiles tilesets.",
   "keywords": [
@@ -15,7 +15,7 @@
     "url": "https://github.com/CesiumGS/3d-tiles-validator/issues"
   },
   "engines": {
-    "node": ">=14.0.0"
+    "node": ">=18.0.0"
   },
   "main": "./build/index.js",
   "types": "./build/index.d.ts",