Add changelog entry for threading MVP
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/ChangeLog.d/add_threading_changelog.txt b/ChangeLog.d/add_threading_changelog.txt
new file mode 100644
index 0000000..b6c79f0
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+++ b/ChangeLog.d/add_threading_changelog.txt
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+Features
+ * Add protection for multithreaded access to the PSA keystore and protection
+ for multithreaded access to the the PSA global state, including
+ concurrently calling psa_crypto_init() when MBEDTLS_THREADING_C and
+ MBEDTLS_THREADING_PTHREAD are defined. See
+ docs/architecture/psa-thread-safety/psa-thread-safety.md for more details.