A VIEW may now reference undefined tables and functions when
+ initially created. Missing tables and functions are reported when
+ the VIEW is used in a query.
+
The query planner is now able to use partial indexes that contain
+ AND-connected terms in the WHERE clause.
+
The sqlite3_analyzer.exe utility is updated to report the depth of
+ each btree and to show the average fanout for indexes and
+ WITHOUT ROWID tables.
+
The sqlite3_memory_alarm() interface, which has been deprecated and
+ undocumented for 8 years, is changed into a no-op.
+
Important fixes:
+
Fixed a critical bug in the
+ SQLite Encryption Extension that
+ could cause the database to become unreadable and unrecoverable if a VACUUM command
+ changed the size of the encryption nonce.
+
Added a memory barrier in the implementation of
+ sqlite3_initialize() to help ensure that it is thread-safe.
+
Fix the OR optimization so that it always ignores subplans that
+ do not use an index.
+
Do not apply the WHERE-clause pushdown optimization on terms that originate
+ in the ON or USING clause of a LEFT JOIN. Fix for ticket
+ c2a19d81652f40568c.
+
+