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-rw-r--r--Doc/library/hashlib.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/library/hashlib.rst b/Doc/library/hashlib.rst
index 955afb8..36f386c 100644
--- a/Doc/library/hashlib.rst
+++ b/Doc/library/hashlib.rst
@@ -105,6 +105,12 @@ A hash object has the following methods:
concatenation of all the arguments: ``m.update(a); m.update(b)`` is
equivalent to ``m.update(a+b)``.
+ .. versionchanged:: 2.7
+
+ The Python GIL is released to allow other threads to run while
+ hash updates on data larger than 2048 bytes is taking place when
+ using hash algorithms supplied by OpenSSL.
+
.. method:: hash.digest()