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-rw-r--r--release_docs/RELEASE.txt11
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diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
index 5ce9368..601f6ed 100644
--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -455,6 +455,17 @@ Bug Fixes since HDF5-1.10.7 release
===================================
Library
-------
+ - Detection of simple data transform function "x"
+
+ In the case of the simple data transform function "x" the (parallel)
+ library recognizes this is the same as not applying this data transform
+ function. This improves the I/O performance. In the case of the parallel
+ library, it also avoids breaking to independent I/O, which makes it
+ possible to apply a filter when writing or reading data to or from
+ teh HDF5 file.
+
+ (JWSB - 2021/09/13)
+
- Fixed CVE-2018-14460
The tool h5repack produced a segfault when the rank in dataspace