chore: bump version to 4.0.6

- Update CHANGELOG with Elixir publish and PHP fixes
- Sync version across all package manifests
- Fix cargo publish version requirements
- Fix Elixir Hex.pm checksum generation
- Fix PHP ext-php-rs class registration panic

Author: Goldziher

CHANGELOG.md

@@ -7,6 +7,31 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [4.0.6] - 2026-01-14
+
+### Fixed
+
+#### Publish Workflow
+- **Cargo publish version requirements**: Added version specifications to path dependencies in `kreuzberg` and `kreuzberg-cli` crates to resolve crates.io publishing failures
+  - `kreuzberg-tesseract` now includes `version = "4.0"` alongside path dependency
+  - `kreuzberg` dependency in CLI now includes version requirement
+  - Resolves "all dependencies must have a version requirement specified when publishing" error
+
+#### Elixir
+- **Hex.pm publish checksums**: Fixed checksum file generation for precompiled NIFs during Hex.pm publishing
+  - Renamed checksum file to `checksum-Elixir.Kreuzberg.Native.exs` to match rustler_precompiled expectations
+  - Added `mix compile --force` step before checksum generation to create required metadata
+  - Updated `mix.exs` to reference correct checksum filename
+  - Resolves "precompiled NIF file does not exist in the checksum file" error during Hex.pm publish
+
+#### PHP
+- **ext-php-rs class registration**: Fixed runtime panic by registering missing `ChunkMetadata` and `Keyword` classes
+  - Both classes are now properly registered in `get_module()` before their containing types
+  - Resolves "Attempted to retrieve class entry before it has been stored" panic
+  - Users can now access chunk metadata and keyword objects in PHP without errors
+
+---
+
 ## [4.0.5] - 2026-01-14
 
 ### Added

Cargo.lock

@@ -22,7 +22,7 @@ kreuzberg = { path = "crates/kreuzberg" }
 kreuzberg-tesseract = { path = "crates/kreuzberg-tesseract" }
 
 [workspace.package]
-version = "4.0.5"
+version = "4.0.6"
 edition = "2024"
 rust-version = "1.91"
 authors = ["Na'aman Hirschfeld <nhirschfeld@gmail.com>"]

Cargo.toml

@@ -1,7 +1,7 @@
 {
     "name": "kreuzberg/kreuzberg",
     "description": "High-performance document intelligence for PHP. Extract text, metadata, and structured information from PDFs, Office documents, images, and 56 formats. Powered by Rust core for 10-50x speed improvements.",
-    "version": "4.0.5",
+    "version": "4.0.6",
     "type": "php-ext",
     "license": "MIT",
     "keywords": [

composer.json

@@ -13,7 +13,7 @@ keywords = ["document", "extraction", "cli", "tool", "parser"]
 categories = ["command-line-utilities", "text-processing"]
 
 [dependencies]
-kreuzberg = { path = "../kreuzberg", version = "4.0", features = ["cli", "bundled-pdfium"] }
+kreuzberg = { path = "../kreuzberg", version = "4.0.6", features = ["cli", "bundled-pdfium"] }
 clap = { workspace = true }
 tokio = { workspace = true }
 anyhow = { workspace = true }

crates/kreuzberg-cli/Cargo.toml

@@ -1,6 +1,6 @@
 {
 	"name": "@kreuzberg/node-darwin-arm64",
-	"version": "4.0.5",
+	"version": "4.0.6",
 	"cpu": [
 		"arm64"
 	],

crates/kreuzberg-node/npm/darwin-arm64/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@kreuzberg/node-darwin-x64",
-	"version": "4.0.5",
+	"version": "4.0.6",
 	"cpu": [
 		"x64"
 	],

crates/kreuzberg-node/npm/darwin-x64/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@kreuzberg/node-linux-arm-gnueabihf",
-	"version": "4.0.5",
+	"version": "4.0.6",
 	"cpu": [
 		"arm"
 	],

crates/kreuzberg-node/npm/linux-arm-gnueabihf/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@kreuzberg/node-linux-arm64-gnu",
-	"version": "4.0.5",
+	"version": "4.0.6",
 	"cpu": [
 		"arm64"
 	],

crates/kreuzberg-node/npm/linux-arm64-gnu/package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@kreuzberg/node-linux-x64-gnu",
-	"version": "4.0.5",
+	"version": "4.0.6",
 	"cpu": [
 		"x64"
 	],