[Python-checkins] Mention backports (GH-18715)

[Stefan Krah]

https://github.com/python/cpython/commit/0b0d29fce568e61e0d7d9f4a362e6dbf1e7fb80a
commit: 0b0d29fce568e61e0d7d9f4a362e6dbf1e7fb80a
branch: master
author: Stefan Krah <skrah at bytereef.org>
committer: GitHub <noreply at github.com>
date: 2020-02-29T22:39:23+01:00
summary:

Mention backports (GH-18715)

files:
M Doc/library/decimal.rst

diff --git a/Doc/library/decimal.rst b/Doc/library/decimal.rst
index 9e317816abb50..69a20fca17898 100644
--- a/Doc/library/decimal.rst
+++ b/Doc/library/decimal.rst
@@ -1485,7 +1485,7 @@ are also included in the pure Python version for compatibility.
    the C version uses a thread-local rather than a coroutine-local context and the value
    is ``False``.  This is slightly faster in some nested context scenarios.
 
-.. versionadded:: 3.9
+.. versionadded:: 3.9 backported to 3.7 and 3.8.
 
 
 Rounding modes