Updated compatibility notes.

16bb498c · Jim Fulton · 35820843 · 16bb498c
Commit 16bb498c authored Apr 20, 2010 by Jim Fulton
Hide whitespace changes
Inline Side-by-side

Showing with 8 additions and 0 deletions

README.txt README.txt +8 -0

No files found.
--- a/README.txt
+++ b/README.txt
@@ -26,6 +26,14 @@ Compatibility

 ZODB 3.9 requires Python 2.4.2 or later.

+Note --
+   When using ZEO and upgrading from Python 2.4, you need to upgrade
+   clients and servers at the same time, or upgrade clients first and
+   then servers.  Clients running Python 2.5 or 2.6 will work with
+   servers running Python 2.4.  Clients running Python 2.4 won't work
+   properly with servers running Python 2.5 or later due to changes in
+   the way Python implements exceptions.
+
 ZODB ZEO clients from ZODB 3.2 on can talk to ZODB 3.9 servers.  ZODB
 ZEO Clients can talk to ZODB 3.8 and 3.9 ZEO servers.