diff options
| -rw-r--r-- | doc/src/sgml/release-9.1.sgml | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/doc/src/sgml/release-9.1.sgml b/doc/src/sgml/release-9.1.sgml index be8d65ae4be..6682106820c 100644 --- a/doc/src/sgml/release-9.1.sgml +++ b/doc/src/sgml/release-9.1.sgml @@ -196,7 +196,14 @@ <listitem> <para> - <emphasis>Implement a truly serializable isolation level</emphasis> + <emphasis>Implement Serializable Snapshot Isolation, in order to + provide a more robust serializable transaction mode.</emphasis> + </para> + <para> + In previous releases, the REPEATABLE READ and SERIALIZABLE isolation + levels were identical. The historical behavior of REPEATABLE READ is + unchanged in this release, but SERIALIZABLE now provides stronger + guarantees. </para> </listitem> |