Update NEWS file the 0.7 release.

Note the addition of the sub-file incrementals feature, and include a
script for upgrading the local database to the new format.

diff --git a/NEWS b/NEWS
index cbcb48d..aee1b11 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -1,7 +1,15 @@
 0.7 [??]
+    - LOCAL DATABASE CHANGE: The addition of subfile incrementals has
+      requires an extension to the local database.  The upgrade script
+      contrib/upgrade0.7-localdb.sql should be run prior to running
+      backups with this version.
     - Initial support for direct backups to remote storage.  A sample
       script is provided for backing up to Amazon S3.  Other scripts
       should be simple to write.
+    - Support for efficient subfile incremental backups.  Changes to a
+      small portion of a file do not require re-uploading substantially
+      all of the file, even in cases where there is an insertion or
+      deletion that shifts most of the file contents.
     - Allow selected files/directories to be restored, not simply an
       entire snapshot.  Additionally, restore files in an order that
       should optimize performance (restore files based on how they are

diff --git a/contrib/upgrade0.7-localdb.sql b/contrib/upgrade0.7-localdb.sql
new file mode 100644 (file)
index 0000000..a7bf056
--- /dev/null
+++ b/contrib/upgrade0.7-localdb.sql
@@ -0,0 +1,13 @@
+-- SQL script for upgrading the local database to the format expected for LBS
+-- version 0.7 (from a version 0.6 database).
+--
+-- This script should be loaded after connecting to the database to be
+-- upgraded.
+
+-- The subblock_signatures table was added to store a signature for old blocks
+-- for performing subfile incremental backups.
+create table subblock_signatures (
+    blockid integer primary key,
+    algorithm text not null,
+    signatures blob not null
+);