Bump version to v0.2.2-alpha

Updates version across documentation files and header.

Changes in v0.2.2-alpha:
- GLOB operator for text metadata columns (asg017#191)
- IS/IS NOT/IS NULL/IS NOT NULL operators (asg017#190)
- All compilation warnings fixed

Co-Authored-By: Claude <noreply@anthropic.com>

Author: vlasky

CHANGELOG.md

@@ -2,6 +2,32 @@
 
 All notable changes to this community fork will be documented in this file.
 
+## [0.2.2-alpha] - 2025-12-02
+
+### Added
+
+- **GLOB operator for text metadata columns** ([#191](https://github.com/asg017/sqlite-vec/issues/191))
+  - Standard SQL pattern matching with `*` (any characters) and `?` (single character) wildcards
+  - Case-sensitive matching (unlike LIKE)
+  - Fast path optimization for prefix-only patterns (e.g., `'prefix*'`)
+  - Full pattern matching with `sqlite3_strglob()` for complex patterns
+
+- **IS/IS NOT/IS NULL/IS NOT NULL operators for metadata columns** ([#190](https://github.com/asg017/sqlite-vec/issues/190))
+  - **Note**: sqlite-vec metadata columns do not currently support NULL values. These operators provide syntactic compatibility within this limitation.
+  - `IS` behaves like `=` (all metadata values are non-NULL)
+  - `IS NOT` behaves like `!=` (all metadata values are non-NULL)
+  - `IS NULL` always returns false (no NULL values exist in metadata)
+  - `IS NOT NULL` always returns true (all metadata values are non-NULL)
+  - Works on all metadata types: INTEGER, FLOAT, TEXT, and BOOLEAN
+
+### Fixed
+
+- **All compilation warnings eliminated**
+  - Fixed critical logic bug: `metadataInIdx` type corrected from `size_t` to `int` (prevented -1 wrapping to SIZE_MAX)
+  - Fixed 5 sign comparison warnings with proper type casts
+  - Fixed 7 uninitialized variable warnings by adding initializers and default cases
+  - Clean compilation with `-Wall -Wextra` (zero warnings)
+
 ## [0.2.1-alpha] - 2025-12-02
 
 ### Added

CLAUDE.md

@@ -7,7 +7,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 > [!NOTE]
 > This is a community fork of [`asg017/sqlite-vec`](https://github.com/asg017/sqlite-vec) created to merge pending upstream PRs and provide continued support while the original author is unavailable.
 
-`sqlite-vec` is a lightweight, fast vector search SQLite extension written in pure C with no dependencies. It's a pre-v1 project (current: v0.2.1-alpha) that provides vector similarity search capabilities for SQLite databases across all platforms where SQLite runs.
+`sqlite-vec` is a lightweight, fast vector search SQLite extension written in pure C with no dependencies. It's a pre-v1 project (current: v0.2.2-alpha) that provides vector similarity search capabilities for SQLite databases across all platforms where SQLite runs.
 
 Key features:
 - Supports float, int8, and binary vector types via `vec0` virtual tables
@@ -203,6 +203,7 @@ Code uses preprocessor directives to select implementations. Distance calculatio
 - Vector format: JSON arrays `'[1,2,3]'` or raw bytes via helper functions
 
 **Fork-specific notes:**
+- Version v0.2.2-alpha includes: GLOB operator for text metadata (#191), IS/IS NOT/IS NULL/IS NOT NULL operators (#190), all compilation warnings fixed (including critical logic bug)
 - Version v0.2.1-alpha includes: LIKE operator for text metadata (#197), locale-independent JSON parsing (#241), musl libc compilation fix
 - Version v0.2.0-alpha merged upstream PRs: #166 (distance constraints), #210 (optimize), #203 (ALTER TABLE RENAME), #212 (cosine distance for binary), #243 (delete memory leak fix), #228 (CI/CD updates)
 - See CHANGELOG.md for complete list of changes from original v0.1.7-alpha.2

VERSION

@@ -1 +1 @@
-0.2.1-alpha
+0.2.2-alpha

sqlite-vec.h

@@ -17,15 +17,15 @@
   #endif
 #endif
 
-#define SQLITE_VEC_VERSION "v0.2.1-alpha"
+#define SQLITE_VEC_VERSION "v0.2.2-alpha"
 // TODO rm
-#define SQLITE_VEC_DATE "2025-11-28T18:49:17Z+1100"
-#define SQLITE_VEC_SOURCE "50840e1b6c72518964658b2ce0251b8d6b70516c"
+#define SQLITE_VEC_DATE "2025-12-02T19:22:08Z+1100"
+#define SQLITE_VEC_SOURCE "2dfe8859ca55d5561a4c6e36521f24272fc5d4aa"
 
 
 #define SQLITE_VEC_VERSION_MAJOR 0
 #define SQLITE_VEC_VERSION_MINOR 2
-#define SQLITE_VEC_VERSION_PATCH 0
+#define SQLITE_VEC_VERSION_PATCH 2
 
 #ifdef __cplusplus
 extern "C" {