diff --git a/README.md b/README.md
index e87124c..5c838ac 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ The **performance measurement tool** can be compiled with:
 
 ````g++ -std=c++20 -mavx -Ofast tiny_bvh_speedtest.cpp -o tiny_bvh_speedtest````
 
-# Version 1.2.2
+# Version 1.2.3
 
 Version 1.1.0 introduced a <ins>change to the API</ins>. The single BVH class with multiple layouts has been replaced with a BVH class per layout. You can simply instantiate the desired layout; conversion (and data ownership) is then handled properly by the library. Examples:
 
@@ -113,6 +113,7 @@ This version of the library includes the following functionality:
 * Binned SAH BVH builder
 * Fast binned SAH BVH builder using AVX intrinsics
 * Fast binned SAH BVH builder using NEON intrinsices, by [wuyakuma](https://github.com/wuyakuma)
+* TLAS builder with instancing and TLAS/BLAS traversal
 * Double-precision binned SAH BVH builder
 * Spatial Splits ([SBVH](https://www.nvidia.in/docs/IO/77714/sbvh.pdf), Stich et al., 2009) builder, including "unsplitting"
 * 'Compressed Wide BVH' (CWBVH) data structure
diff --git a/tiny_bvh.h b/tiny_bvh.h
index 7180b74..d7fd37d 100644
--- a/tiny_bvh.h
+++ b/tiny_bvh.h
@@ -135,7 +135,7 @@ THE SOFTWARE.
 // library version
 #define TINY_BVH_VERSION_MAJOR	1
 #define TINY_BVH_VERSION_MINOR	2
-#define TINY_BVH_VERSION_SUB	2
+#define TINY_BVH_VERSION_SUB	3
 
 // ============================================================================
 //