Log Message:
Changes 3.8.11:
Added the experimental RBU extension. Note that this extension is experimental \ 
and subject to change in incompatible ways.
Added the experimental FTS5 extension. Note that this extension is experimental \ 
and subject to change in incompatible ways.
Added the sqlite3_value_dup() and sqlite3_value_free() interfaces.
Enhance the spellfix1 extension to support ON CONFLICT clauses.
The IS operator is now able to drive indexes.
Enhance the query planner to permit automatic indexing on FROM-clause subqueries \ 
that are implemented by co-routine.
Disallow the use of "rowid" in common table expressions.
Added the PRAGMA cell_size_check command for better and earlier detection of \ 
database file corruption.
Added the matchinfo 'b' flag to the matchinfo() function in FTS3.
Improved fuzz-testing of database files, with fixes for problems found.
Add the fuzzcheck test program and automatically run this program using both SQL \ 
and database test cases on "make test".
Added the SQLITE_MUTEX_STATIC_VFS1 static mutex and use it in the Windows VFS.
The sqlite3_profile() callback is invoked (by sqlite3_reset() or \ 
sqlite3_finalize()) for statements that did not run to completion.
Enhance the page cache so that it can preallocate a block of memory to use for \ 
the initial set page cache lines. Set the default preallocation to 100 pages. \ 
Yields about a 5% performance increase on common workloads.
Miscellaneous micro-optimizations result in 22.3% more work for the same number \ 
of CPU cycles relative to the previous release. SQLite now runs twice as fast as \ 
version 3.8.0 and three times as fast as version 3.3.9. (Measured using \ 
cachegrind on the speedtest1.c workload on Ubuntu 14.04 x64 with gcc 4.8.2 and \ 
-Os. Your performance may vary.)
Added the sqlite3_result_zeroblob64() and sqlite3_bind_zeroblob64() interfaces.