Update changelog

solidpixel · solidpixel · commit f9ca1471cb23 · 2026-03-25T21:18:48.000Z
diff --git a/Docs/ChangeLog-5x.md b/Docs/ChangeLog-5x.md
@@ -6,6 +6,19 @@ release of the 5.x series.
 All performance data on this page is measured on an Intel Core i5-9600K
 clocked at 4.2 GHz, running `astcenc` using AVX2 and 6 threads.
 
+<!-- ---------------------------------------------------------------------- -->
+## 5.5.0
+
+**Status:** In development.
+
+The 5.4.0 release is a minor maintenance release.
+
+* **General:**
+  * **Improvement:** Decompressor (`astcdec`) builds, which lack compression
+    support, now use a smaller `block_size_descriptor` by omitting fields that
+    are only needed for compression. This reduces the size of a decompressor
+    context by more than 10MB!
+
 <!-- ---------------------------------------------------------------------- -->
 ## 5.3.0
 
