diff --git a/README.md b/README.md
index ba3d924..4b57b4b 100644
--- a/README.md
+++ b/README.md
@@ -162,11 +162,12 @@ The encoding library and command line tool have no required 3rd party dependenci
 
 We build and test under:
 - Windows x86/x64 using Visual Studio 2026, MSVC or clang
-- Windows ARM using Visual Studio 2022 ARM v17.13.0 or later
-- macOS (M1) with clang v16.0.0
-- Ubuntu Linux with gcc v11.4 or clang v14
-- Arch Linux ARM, on a [Pinebook Pro](https://pine64.org/devices/pinebook_pro/), with gcc v12.1.
+- Windows ARM using Visual Studio 2022 ARM 17.13.0
+- Ubuntu Linux 24.04.3 LTS (noble) with gcc 13.3.0 or clang 18.1.3 
+- macOS (M1) with clang 16.0.0
+- Arch Linux ARM, on a [Pinebook Pro](https://pine64.org/devices/pinebook_pro/), with gcc 12.1.
 - Ubuntu Linux 24.04 on RISC-V (Orange PI RV2)
+- cmake: 3.28.3, mcc: v4.0.19
 
 Under Windows with Visual Studio you can use the included `basisu.sln` file. Alternatively, you can use cmake to create new VS solution/project files.