Commit d29473ef for libheif

commit d29473ef2ee86a73cf04c2378011f2c5f56204f6
Author: Dirk Farin <dirk.farin@gmail.com>
Date:   Mon Apr 13 01:27:07 2026 +0200

    clarify in README that experimental features should not be enabled in release builds

diff --git a/README.md b/README.md
index 26607f26..36bf02d8 100644
--- a/README.md
+++ b/README.md
@@ -187,9 +187,9 @@ Further options are:
    Note that header compression is not widely supported yet.
 * `WITH_LIBSHARPYUV`: enables high-quality YCbCr/RGB color space conversion algorithms (requires `libsharpyuv`,
    e.g. from the `third-party` directory).
-* `ENABLE_EXPERIMENTAL_FEATURES`: enables functions that are currently in development and for which the API is not stable yet.
-   When this is enabled, a header `heif_experimental.h` will be installed that contains this unstable API.
-   Distributions that rely on a stable API should not enable this.
+* `ENABLE_EXPERIMENTAL_FEATURES`: enables functions that are currently in development and for which the API is not stable yet
+   and may contain security risks. When this is enabled, a header `heif_experimental.h` will be installed that contains this
+   unstable API. Distributions should not enable this in release or production builds.
 * `ENABLE_MULTITHREADING_SUPPORT`: can be used to disable any multithreading support, e.g. for embedded platforms.
 * `ENABLE_PARALLEL_TILE_DECODING`: when enabled, libheif will decode tiled images in parallel to speed up compilation.
 * `PLUGIN_DIRECTORY`: the directory where libheif will search for dynamic plugins when the environment