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-rw-r--r--Doc/whatsnew/3.10.rst6
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index eeb0c29..2d8bb28 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -1243,6 +1243,12 @@ Optimizations
for more details. (Contributed by Victor Stinner and Pablo Galindo in
:issue:`38980`.)
+* Use a new output buffer management code for :mod:`bz2` / :mod:`lzma` /
+ :mod:`zlib` modules, and add ``.readall()`` function to
+ ``_compression.DecompressReader`` class. bz2 decompression 1.09x ~ 1.17x
+ faster, lzma decompression 1.20x ~ 1.32x faster, ``GzipFile.read(-1)`` 1.11x
+ ~ 1.18x faster. (Contributed by Ma Lin, reviewed by Gregory P. Smith, in :issue:`41486`)
+
* Function parameters and their annotations are no longer computed at runtime,
but rather at compilation time. They are stored as a tuple of strings at the
bytecode level. It is now around 2 times faster to create a function with