Fix a performance issue in Decimal.pow. Thanks Stefan Krah for finding this.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4ec9ec9..369eaff 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -470,6 +470,10 @@
Library
-------
+- Fix extreme speed issue in Decimal.pow when the base is an exact
+ power of 10 and the exponent is tiny (for example,
+ Decimal(10) ** Decimal('1e-999999999')).
+
- Issue #9186: Fix math.log1p(-1.0) to raise ValueError, not OverflowError.
- Issue #9130: Fix validation of relative imports in parser module.