merge 3.3

diff --cc Misc/NEWS
index 909bdffcac20d5976c075c14ca19944e2abe3efb,845375d4829c6b29bdce2c966a0cb4107f7ee138..1437411c16ae80c8b4470e6a7b7df09d68d08e0b
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -18,11 -15,8 +18,11 @@@ Core and Builtin
  - Fix segfaults on setting __qualname__ on builtin types and attempting to
    delete it on any type.
  
 +- Issue #14625: Rewrite the UTF-32 decoder. It is now 3x to 4x faster. Patch
 +  written by Serhiy Storchaka.
 +
  - Issue #16345: Fix an infinite loop when ``fromkeys`` on a dict subclass
-   recieved a nonempty dict from the constructor.
+   received a nonempty dict from the constructor.
  
  - Issue #16271: Fix strange bugs that resulted from __qualname__ appearing in a
    class's __dict__ and on type.