Update SQLite3MultipleCiphers to v2.2.0 (SQLite 3.50.2) (#122)

2026-09-24 16:57:19 +00:00 · 2025-07-02 17:17:57 +05:30
parent 84c2013b47
commit 4b97636617
5 changed files with 3392 additions and 1832 deletions
@@ -30,10 +30,10 @@
 #define SQLITE3MC_VERSION_H_

 #define SQLITE3MC_VERSION_MAJOR      2
-#define SQLITE3MC_VERSION_MINOR      1
-#define SQLITE3MC_VERSION_RELEASE    1
+#define SQLITE3MC_VERSION_MINOR      2
+#define SQLITE3MC_VERSION_RELEASE    0
 #define SQLITE3MC_VERSION_SUBRELEASE 0
-#define SQLITE3MC_VERSION_STRING     "SQLite3 Multiple Ciphers 2.1.1"
+#define SQLITE3MC_VERSION_STRING     "SQLite3 Multiple Ciphers 2.2.0"

 #endif /* SQLITE3MC_VERSION_H_ */
 /*** End of #include "sqlite3mc_version.h" ***/
@@ -179,7 +179,7 @@ extern "C" {
 **
 ** Since [version 3.6.18] ([dateof:3.6.18]),
 ** SQLite source code has been stored in the
-** <a href="http://www.fossil-scm.org/">Fossil configuration management
+** <a href="http://fossil-scm.org/">Fossil configuration management
 ** system</a>.  ^The SQLITE_SOURCE_ID macro evaluates to
 ** a string which identifies a particular check-in of SQLite
 ** within its configuration management system.  ^The SQLITE_SOURCE_ID
@@ -192,9 +192,9 @@ extern "C" {
 ** [sqlite3_libversion_number()], [sqlite3_sourceid()],
 ** [sqlite_version()] and [sqlite_source_id()].
 */
-#define SQLITE_VERSION        "3.49.2"
-#define SQLITE_VERSION_NUMBER 3049002
-#define SQLITE_SOURCE_ID      "2025-05-07 10:39:52 17144570b0d96ae63cd6f3edca39e27ebd74925252bbaf6723bcb2f6b4861fb1"
+#define SQLITE_VERSION        "3.50.2"
+#define SQLITE_VERSION_NUMBER 3050002
+#define SQLITE_SOURCE_ID      "2025-06-28 14:00:48 2af157d77fb1304a74176eaee7fbc7c7e932d946bf25325e9c26c91db19e3079"

 /*
 ** CAPI3REF: Run-Time Library Version Numbers
@@ -1209,6 +1209,12 @@ struct sqlite3_io_methods {
 ** the value that M is to be set to. Before returning, the 32-bit signed
 ** integer is overwritten with the previous value of M.
 **
+** <li>[[SQLITE_FCNTL_BLOCK_ON_CONNECT]]
+** The [SQLITE_FCNTL_BLOCK_ON_CONNECT] opcode is used to configure the
+** VFS to block when taking a SHARED lock to connect to a wal mode database.
+** This is used to implement the functionality associated with
+** SQLITE_SETLK_BLOCK_ON_CONNECT.
+**
 ** <li>[[SQLITE_FCNTL_DATA_VERSION]]
 ** The [SQLITE_FCNTL_DATA_VERSION] opcode is used to detect changes to
 ** a database file.  The argument is a pointer to a 32-bit unsigned integer.
@@ -1305,6 +1311,7 @@ struct sqlite3_io_methods {
 #define SQLITE_FCNTL_CKSM_FILE              41
 #define SQLITE_FCNTL_RESET_CACHE            42
 #define SQLITE_FCNTL_NULL_IO                43
+#define SQLITE_FCNTL_BLOCK_ON_CONNECT       44

 /* deprecated names */
 #define SQLITE_GET_LOCKPROXYFILE      SQLITE_FCNTL_GET_LOCKPROXYFILE
@@ -2035,13 +2042,16 @@ struct sqlite3_mem_methods {
 **
 ** [[SQLITE_CONFIG_LOOKASIDE]] <dt>SQLITE_CONFIG_LOOKASIDE</dt>
 ** <dd> ^(The SQLITE_CONFIG_LOOKASIDE option takes two arguments that determine
-** the default size of lookaside memory on each [database connection].
+** the default size of [lookaside memory] on each [database connection].
 ** The first argument is the
-** size of each lookaside buffer slot and the second is the number of
-** slots allocated to each database connection.)^  ^(SQLITE_CONFIG_LOOKASIDE
-** sets the <i>default</i> lookaside size. The [SQLITE_DBCONFIG_LOOKASIDE]
-** option to [sqlite3_db_config()] can be used to change the lookaside
-** configuration on individual connections.)^ </dd>
+** size of each lookaside buffer slot ("sz") and the second is the number of
+** slots allocated to each database connection ("cnt").)^
+** ^(SQLITE_CONFIG_LOOKASIDE sets the <i>default</i> lookaside size.
+** The [SQLITE_DBCONFIG_LOOKASIDE] option to [sqlite3_db_config()] can
+** be used to change the lookaside configuration on individual connections.)^
+** The [-DSQLITE_DEFAULT_LOOKASIDE] option can be used to change the
+** default lookaside configuration at compile-time.
+** </dd>
 **
 ** [[SQLITE_CONFIG_PCACHE2]] <dt>SQLITE_CONFIG_PCACHE2</dt>
 ** <dd> ^(The SQLITE_CONFIG_PCACHE2 option takes a single argument which is
@@ -2278,31 +2288,50 @@ struct sqlite3_mem_methods {
 ** [[SQLITE_DBCONFIG_LOOKASIDE]]
 ** <dt>SQLITE_DBCONFIG_LOOKASIDE</dt>
 ** <dd> The SQLITE_DBCONFIG_LOOKASIDE option is used to adjust the
-** configuration of the lookaside memory allocator within a database
+** configuration of the [lookaside memory allocator] within a database
 ** connection.
 ** The arguments to the SQLITE_DBCONFIG_LOOKASIDE option are <i>not</i>
 ** in the [DBCONFIG arguments|usual format].
 ** The SQLITE_DBCONFIG_LOOKASIDE option takes three arguments, not two,
 ** so that a call to [sqlite3_db_config()] that uses SQLITE_DBCONFIG_LOOKASIDE
 ** should have a total of five parameters.
-** ^The first argument (the third parameter to [sqlite3_db_config()] is a
+** <ol>
+** <li><p>The first argument ("buf") is a
 ** pointer to a memory buffer to use for lookaside memory.
-** ^The first argument after the SQLITE_DBCONFIG_LOOKASIDE verb
-** may be NULL in which case SQLite will allocate the
-** lookaside buffer itself using [sqlite3_malloc()]. ^The second argument is the
-** size of each lookaside buffer slot.  ^The third argument is the number of
-** slots.  The size of the buffer in the first argument must be greater than
-** or equal to the product of the second and third arguments.  The buffer
-** must be aligned to an 8-byte boundary.  ^If the second argument to
-** SQLITE_DBCONFIG_LOOKASIDE is not a multiple of 8, it is internally
-** rounded down to the next smaller multiple of 8.  ^(The lookaside memory
+** The first argument may be NULL in which case SQLite will allocate the
+** lookaside buffer itself using [sqlite3_malloc()].
+** <li><P>The second argument ("sz") is the
+** size of each lookaside buffer slot.  Lookaside is disabled if "sz"
+** is less than 8.  The "sz" argument should be a multiple of 8 less than
+** 65536.  If "sz" does not meet this constraint, it is reduced in size until
+** it does.
+** <li><p>The third argument ("cnt") is the number of slots. Lookaside is disabled
+** if "cnt"is less than 1.  The "cnt" value will be reduced, if necessary, so
+** that the product of "sz" and "cnt" does not exceed 2,147,418,112.  The "cnt"
+** parameter is usually chosen so that the product of "sz" and "cnt" is less
+** than 1,000,000.
+** </ol>
+** <p>If the "buf" argument is not NULL, then it must
+** point to a memory buffer with a size that is greater than
+** or equal to the product of "sz" and "cnt".
+** The buffer must be aligned to an 8-byte boundary.
+** The lookaside memory
 ** configuration for a database connection can only be changed when that
 ** connection is not currently using lookaside memory, or in other words
-** when the "current value" returned by
-** [sqlite3_db_status](D,[SQLITE_DBSTATUS_LOOKASIDE_USED],...) is zero.
+** when the value returned by [SQLITE_DBSTATUS_LOOKASIDE_USED] is zero.
 ** Any attempt to change the lookaside memory configuration when lookaside
 ** memory is in use leaves the configuration unchanged and returns
-** [SQLITE_BUSY].)^</dd>
+** [SQLITE_BUSY].
+** If the "buf" argument is NULL and an attempt
+** to allocate memory based on "sz" and "cnt" fails, then
+** lookaside is silently disabled.
+** <p>
+** The [SQLITE_CONFIG_LOOKASIDE] configuration option can be used to set the
+** default lookaside configuration at initialization.  The
+** [-DSQLITE_DEFAULT_LOOKASIDE] option can be used to set the default lookaside
+** configuration at compile-time.  Typical values for lookaside are 1200 for
+** "sz" and 40 to 100 for "cnt".
+** </dd>
 **
 ** [[SQLITE_DBCONFIG_ENABLE_FKEY]]
 ** <dt>SQLITE_DBCONFIG_ENABLE_FKEY</dt>
@@ -3039,6 +3068,44 @@ SQLITE_API int sqlite3_busy_handler(sqlite3*,int(*)(void*,int),void*);
 */
 SQLITE_API int sqlite3_busy_timeout(sqlite3*, int ms);

+/*
+** CAPI3REF: Set the Setlk Timeout
+** METHOD: sqlite3
+**
+** This routine is only useful in SQLITE_ENABLE_SETLK_TIMEOUT builds. If
+** the VFS supports blocking locks, it sets the timeout in ms used by
+** eligible locks taken on wal mode databases by the specified database
+** handle. In non-SQLITE_ENABLE_SETLK_TIMEOUT builds, or if the VFS does
+** not support blocking locks, this function is a no-op.
+**
+** Passing 0 to this function disables blocking locks altogether. Passing
+** -1 to this function requests that the VFS blocks for a long time -
+** indefinitely if possible. The results of passing any other negative value
+** are undefined.
+**
+** Internally, each SQLite database handle store two timeout values - the
+** busy-timeout (used for rollback mode databases, or if the VFS does not
+** support blocking locks) and the setlk-timeout (used for blocking locks
+** on wal-mode databases). The sqlite3_busy_timeout() method sets both
+** values, this function sets only the setlk-timeout value. Therefore,
+** to configure separate busy-timeout and setlk-timeout values for a single
+** database handle, call sqlite3_busy_timeout() followed by this function.
+**
+** Whenever the number of connections to a wal mode database falls from
+** 1 to 0, the last connection takes an exclusive lock on the database,
+** then checkpoints and deletes the wal file. While it is doing this, any
+** new connection that tries to read from the database fails with an
+** SQLITE_BUSY error. Or, if the SQLITE_SETLK_BLOCK_ON_CONNECT flag is
+** passed to this API, the new connection blocks until the exclusive lock
+** has been released.
+*/
+SQLITE_API int sqlite3_setlk_timeout(sqlite3*, int ms, int flags);
+
+/*
+** CAPI3REF: Flags for sqlite3_setlk_timeout()
+*/
+#define SQLITE_SETLK_BLOCK_ON_CONNECT 0x01
+
 /*
 ** CAPI3REF: Convenience Routines For Running Queries
 ** METHOD: sqlite3
@@ -4058,7 +4125,7 @@ SQLITE_API sqlite3_file *sqlite3_database_file_object(const char*);
 **
 ** The sqlite3_create_filename(D,J,W,N,P) allocates memory to hold a version of
 ** database filename D with corresponding journal file J and WAL file W and
-** with N URI parameters key/values pairs in the array P.  The result from
+** an array P of N URI Key/Value pairs.  The result from
 ** sqlite3_create_filename(D,J,W,N,P) is a pointer to a database filename that
 ** is safe to pass to routines like:
 ** <ul>
@@ -4739,7 +4806,7 @@ typedef struct sqlite3_context sqlite3_context;
 ** METHOD: sqlite3_stmt
 **
 ** ^(In the SQL statement text input to [sqlite3_prepare_v2()] and its variants,
-** literals may be replaced by a [parameter] that matches one of following
+** literals may be replaced by a [parameter] that matches one of the following
 ** templates:
 **
 ** <ul>
@@ -4784,7 +4851,7 @@ typedef struct sqlite3_context sqlite3_context;
 **
 ** [[byte-order determination rules]] ^The byte-order of
 ** UTF16 input text is determined by the byte-order mark (BOM, U+FEFF)
-** found in first character, which is removed, or in the absence of a BOM
+** found in the first character, which is removed, or in the absence of a BOM
 ** the byte order is the native byte order of the host
 ** machine for sqlite3_bind_text16() or the byte order specified in
 ** the 6th parameter for sqlite3_bind_text64().)^
@@ -4804,7 +4871,7 @@ typedef struct sqlite3_context sqlite3_context;
 ** or sqlite3_bind_text16() or sqlite3_bind_text64() then
 ** that parameter must be the byte offset
 ** where the NUL terminator would occur assuming the string were NUL
-** terminated.  If any NUL characters occurs at byte offsets less than
+** terminated.  If any NUL characters occur at byte offsets less than
 ** the value of the fourth parameter then the resulting string value will
 ** contain embedded NULs.  The result of expressions involving strings
 ** with embedded NULs is undefined.
@@ -5016,7 +5083,7 @@ SQLITE_API const void *sqlite3_column_name16(sqlite3_stmt*, int N);
 ** METHOD: sqlite3_stmt
 **
 ** ^These routines provide a means to determine the database, table, and
-** table column that is the origin of a particular result column in
+** table column that is the origin of a particular result column in a
 ** [SELECT] statement.
 ** ^The name of the database or table or column can be returned as
 ** either a UTF-8 or UTF-16 string.  ^The _database_ routines return
@@ -5154,7 +5221,7 @@ SQLITE_API const void *sqlite3_column_decltype16(sqlite3_stmt*,int);
 ** other than [SQLITE_ROW] before any subsequent invocation of
 ** sqlite3_step().  Failure to reset the prepared statement using
 ** [sqlite3_reset()] would result in an [SQLITE_MISUSE] return from
-** sqlite3_step().  But after [version 3.6.23.1] ([dateof:3.6.23.1],
+** sqlite3_step().  But after [version 3.6.23.1] ([dateof:3.6.23.1]),
 ** sqlite3_step() began
 ** calling [sqlite3_reset()] automatically in this circumstance rather
 ** than returning [SQLITE_MISUSE].  This is not considered a compatibility
@@ -5585,8 +5652,8 @@ SQLITE_API int sqlite3_reset(sqlite3_stmt *pStmt);
 **
 ** For best security, the [SQLITE_DIRECTONLY] flag is recommended for
 ** all application-defined SQL functions that do not need to be
-** used inside of triggers, view, CHECK constraints, or other elements of
-** the database schema.  This flags is especially recommended for SQL
+** used inside of triggers, views, CHECK constraints, or other elements of
+** the database schema.  This flag is especially recommended for SQL
 ** functions that have side effects or reveal internal application state.
 ** Without this flag, an attacker might be able to modify the schema of
 ** a database file to include invocations of the function with parameters
@@ -5617,7 +5684,7 @@ SQLITE_API int sqlite3_reset(sqlite3_stmt *pStmt);
 ** [user-defined window functions|available here].
 **
 ** ^(If the final parameter to sqlite3_create_function_v2() or
-** sqlite3_create_window_function() is not NULL, then it is destructor for
+** sqlite3_create_window_function() is not NULL, then it is the destructor for
 ** the application data pointer. The destructor is invoked when the function
 ** is deleted, either by being overloaded or when the database connection
 ** closes.)^ ^The destructor is also invoked if the call to
@@ -6017,7 +6084,7 @@ SQLITE_API unsigned int sqlite3_value_subtype(sqlite3_value*);
 ** METHOD: sqlite3_value
 **
 ** ^The sqlite3_value_dup(V) interface makes a copy of the [sqlite3_value]
-** object D and returns a pointer to that copy.  ^The [sqlite3_value] returned
+** object V and returns a pointer to that copy.  ^The [sqlite3_value] returned
 ** is a [protected sqlite3_value] object even if the input is not.
 ** ^The sqlite3_value_dup(V) interface returns NULL if V is NULL or if a
 ** memory allocation fails. ^If V is a [pointer value], then the result
@@ -6055,7 +6122,7 @@ SQLITE_API void sqlite3_value_free(sqlite3_value*);
 ** allocation error occurs.
 **
 ** ^(The amount of space allocated by sqlite3_aggregate_context(C,N) is
-** determined by the N parameter on first successful call.  Changing the
+** determined by the N parameter on the first successful call.  Changing the
 ** value of N in any subsequent call to sqlite3_aggregate_context() within
 ** the same aggregate function instance will not resize the memory
 ** allocation.)^  Within the xFinal callback, it is customary to set
@@ -6217,7 +6284,7 @@ SQLITE_API void sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (*)(voi
 **
 ** Security Warning:  These interfaces should not be exposed in scripting
 ** languages or in other circumstances where it might be possible for an
-** an attacker to invoke them.  Any agent that can invoke these interfaces
+** attacker to invoke them.  Any agent that can invoke these interfaces
 ** can probably also take control of the process.
 **
 ** Database connection client data is only available for SQLite
@@ -6331,7 +6398,7 @@ typedef void (*sqlite3_destructor_type)(void*);
 ** pointed to by the 2nd parameter are taken as the application-defined
 ** function result.  If the 3rd parameter is non-negative, then it
 ** must be the byte offset into the string where the NUL terminator would
-** appear if the string where NUL terminated.  If any NUL characters occur
+** appear if the string were NUL terminated.  If any NUL characters occur
 ** in the string at a byte offset that is less than the value of the 3rd
 ** parameter, then the resulting string will contain embedded NULs and the
 ** result of expressions operating on strings with embedded NULs is undefined.
@@ -6389,7 +6456,7 @@ typedef void (*sqlite3_destructor_type)(void*);
 ** string and preferably a string literal. The sqlite3_result_pointer()
 ** routine is part of the [pointer passing interface] added for SQLite 3.20.0.
 **
-** If these routines are called from within the different thread
+** If these routines are called from within a different thread
 ** than the one containing the application-defined function that received
 ** the [sqlite3_context] pointer, the results are undefined.
 */
@@ -6795,7 +6862,7 @@ SQLITE_API sqlite3 *sqlite3_db_handle(sqlite3_stmt*);
 ** METHOD: sqlite3
 **
 ** ^The sqlite3_db_name(D,N) interface returns a pointer to the schema name
-** for the N-th database on database connection D, or a NULL pointer of N is
+** for the N-th database on database connection D, or a NULL pointer if N is
 ** out of range.  An N value of 0 means the main database file.  An N of 1 is
 ** the "temp" schema.  Larger values of N correspond to various ATTACH-ed
 ** databases.
@@ -6890,7 +6957,7 @@ SQLITE_API int sqlite3_txn_state(sqlite3*,const char *zSchema);
 ** <dd>The SQLITE_TXN_READ state means that the database is currently
 ** in a read transaction.  Content has been read from the database file
 ** but nothing in the database file has changed.  The transaction state
-** will advanced to SQLITE_TXN_WRITE if any changes occur and there are
+** will be advanced to SQLITE_TXN_WRITE if any changes occur and there are
 ** no other conflicting concurrent write transactions.  The transaction
 ** state will revert to SQLITE_TXN_NONE following a [ROLLBACK] or
 ** [COMMIT].</dd>
@@ -6899,7 +6966,7 @@ SQLITE_API int sqlite3_txn_state(sqlite3*,const char *zSchema);
 ** <dd>The SQLITE_TXN_WRITE state means that the database is currently
 ** in a write transaction.  Content has been written to the database file
 ** but has not yet committed.  The transaction state will change to
-** to SQLITE_TXN_NONE at the next [ROLLBACK] or [COMMIT].</dd>
+** SQLITE_TXN_NONE at the next [ROLLBACK] or [COMMIT].</dd>
 */
 #define SQLITE_TXN_NONE  0
 #define SQLITE_TXN_READ  1
@@ -7050,6 +7117,8 @@ SQLITE_API int sqlite3_autovacuum_pages(
 **
 ** ^The second argument is a pointer to the function to invoke when a
 ** row is updated, inserted or deleted in a rowid table.
+** ^The update hook is disabled by invoking sqlite3_update_hook()
+** with a NULL pointer as the second parameter.
 ** ^The first argument to the callback is a copy of the third argument
 ** to sqlite3_update_hook().
 ** ^The second callback argument is one of [SQLITE_INSERT], [SQLITE_DELETE],
@@ -7178,7 +7247,7 @@ SQLITE_API int sqlite3_db_release_memory(sqlite3*);
 ** CAPI3REF: Impose A Limit On Heap Size
 **
 ** These interfaces impose limits on the amount of heap memory that will be
-** by all database connections within a single process.
+** used by all database connections within a single process.
 **
 ** ^The sqlite3_soft_heap_limit64() interface sets and/or queries the
 ** soft limit on the amount of heap memory that may be allocated by SQLite.
@@ -7236,7 +7305,7 @@ SQLITE_API int sqlite3_db_release_memory(sqlite3*);
 ** </ul>)^
 **
 ** The circumstances under which SQLite will enforce the heap limits may
-** changes in future releases of SQLite.
+** change in future releases of SQLite.
 */
 SQLITE_API sqlite3_int64 sqlite3_soft_heap_limit64(sqlite3_int64 N);
 SQLITE_API sqlite3_int64 sqlite3_hard_heap_limit64(sqlite3_int64 N);
@@ -7351,8 +7420,8 @@ SQLITE_API int sqlite3_table_column_metadata(
 ** ^The entry point is zProc.
 ** ^(zProc may be 0, in which case SQLite will try to come up with an
 ** entry point name on its own.  It first tries "sqlite3_extension_init".
-** If that does not work, it constructs a name "sqlite3_X_init" where the
-** X is consists of the lower-case equivalent of all ASCII alphabetic
+** If that does not work, it constructs a name "sqlite3_X_init" where
+** X consists of the lower-case equivalent of all ASCII alphabetic
 ** characters in the filename from the last "/" to the first following
 ** "." and omitting any initial "lib".)^
 ** ^The sqlite3_load_extension() interface returns
@@ -7423,7 +7492,7 @@ SQLITE_API int sqlite3_enable_load_extension(sqlite3 *db, int onoff);
 ** ^(Even though the function prototype shows that xEntryPoint() takes
 ** no arguments and returns void, SQLite invokes xEntryPoint() with three
 ** arguments and expects an integer result as if the signature of the
-** entry point where as follows:
+** entry point were as follows:
 **
 ** <blockquote><pre>
 ** &nbsp;  int xEntryPoint(
@@ -7587,7 +7656,7 @@ struct sqlite3_module {
 ** virtual table and might not be checked again by the byte code.)^ ^(The
 ** aConstraintUsage[].omit flag is an optimization hint. When the omit flag
 ** is left in its default setting of false, the constraint will always be
-** checked separately in byte code.  If the omit flag is change to true, then
+** checked separately in byte code.  If the omit flag is changed to true, then
 ** the constraint may or may not be checked in byte code.  In other words,
 ** when the omit flag is true there is no guarantee that the constraint will
 ** not be checked again using byte code.)^
@@ -7613,7 +7682,7 @@ struct sqlite3_module {
 ** The xBestIndex method may optionally populate the idxFlags field with a
 ** mask of SQLITE_INDEX_SCAN_* flags. One such flag is
 ** [SQLITE_INDEX_SCAN_HEX], which if set causes the [EXPLAIN QUERY PLAN]
-** output to show the idxNum has hex instead of as decimal.  Another flag is
+** output to show the idxNum as hex instead of as decimal.  Another flag is
 ** SQLITE_INDEX_SCAN_UNIQUE, which if set indicates that the query plan will
 ** return at most one row.
 **
@@ -7754,7 +7823,7 @@ struct sqlite3_index_info {
 ** the implementation of the [virtual table module].   ^The fourth
 ** parameter is an arbitrary client data pointer that is passed through
 ** into the [xCreate] and [xConnect] methods of the virtual table module
-** when a new virtual table is be being created or reinitialized.
+** when a new virtual table is being created or reinitialized.
 **
 ** ^The sqlite3_create_module_v2() interface has a fifth parameter which
 ** is a pointer to a destructor for the pClientData.  ^SQLite will
@@ -7919,7 +7988,7 @@ typedef struct sqlite3_blob sqlite3_blob;
 ** in *ppBlob. Otherwise an [error code] is returned and, unless the error
 ** code is SQLITE_MISUSE, *ppBlob is set to NULL.)^ ^This means that, provided
 ** the API is not misused, it is always safe to call [sqlite3_blob_close()]
-** on *ppBlob after this function it returns.
+** on *ppBlob after this function returns.
 **
 ** This function fails with SQLITE_ERROR if any of the following are true:
 ** <ul>
@@ -8039,7 +8108,7 @@ SQLITE_API int sqlite3_blob_close(sqlite3_blob *);
 **
 ** ^Returns the size in bytes of the BLOB accessible via the
 ** successfully opened [BLOB handle] in its only argument.  ^The
-** incremental blob I/O routines can only read or overwriting existing
+** incremental blob I/O routines can only read or overwrite existing
 ** blob content; they cannot change the size of a blob.
 **
 ** This routine only works on a [BLOB handle] which has been created
@@ -8189,7 +8258,7 @@ SQLITE_API int sqlite3_vfs_unregister(sqlite3_vfs*);
 ** ^The sqlite3_mutex_alloc() routine allocates a new
 ** mutex and returns a pointer to it. ^The sqlite3_mutex_alloc()
 ** routine returns NULL if it is unable to allocate the requested
-** mutex.  The argument to sqlite3_mutex_alloc() must one of these
+** mutex.  The argument to sqlite3_mutex_alloc() must be one of these
 ** integer constants:
 **
 ** <ul>
@@ -8422,7 +8491,7 @@ SQLITE_API int sqlite3_mutex_notheld(sqlite3_mutex*);
 ** CAPI3REF: Retrieve the mutex for a database connection
 ** METHOD: sqlite3
 **
-** ^This interface returns a pointer the [sqlite3_mutex] object that
+** ^This interface returns a pointer to the [sqlite3_mutex] object that
 ** serializes access to the [database connection] given in the argument
 ** when the [threading mode] is Serialized.
 ** ^If the [threading mode] is Single-thread or Multi-thread then this
@@ -8545,7 +8614,7 @@ SQLITE_API int sqlite3_test_control(int op, ...);
 ** CAPI3REF: SQL Keyword Checking
 **
 ** These routines provide access to the set of SQL language keywords
-** recognized by SQLite.  Applications can uses these routines to determine
+** recognized by SQLite.  Applications can use these routines to determine
 ** whether or not a specific identifier needs to be escaped (for example,
 ** by enclosing in double-quotes) so as not to confuse the parser.
 **
@@ -8713,7 +8782,7 @@ SQLITE_API void sqlite3_str_reset(sqlite3_str*);
 ** content of the dynamic string under construction in X.  The value
 ** returned by [sqlite3_str_value(X)] is managed by the sqlite3_str object X
 ** and might be freed or altered by any subsequent method on the same
-** [sqlite3_str] object.  Applications must not used the pointer returned
+** [sqlite3_str] object.  Applications must not use the pointer returned by
 ** [sqlite3_str_value(X)] after any subsequent method call on the same
 ** object.  ^Applications may change the content of the string returned
 ** by [sqlite3_str_value(X)] as long as they do not write into any bytes
@@ -8799,7 +8868,7 @@ SQLITE_API int sqlite3_status64(
 ** allocation which could not be satisfied by the [SQLITE_CONFIG_PAGECACHE]
 ** buffer and where forced to overflow to [sqlite3_malloc()].  The
 ** returned value includes allocations that overflowed because they
-** where too large (they were larger than the "sz" parameter to
+** were too large (they were larger than the "sz" parameter to
 ** [SQLITE_CONFIG_PAGECACHE]) and allocations that overflowed because
 ** no space was left in the page cache.</dd>)^
 **
@@ -8883,28 +8952,29 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
 ** [[SQLITE_DBSTATUS_LOOKASIDE_HIT]] ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_HIT</dt>
 ** <dd>This parameter returns the number of malloc attempts that were
 ** satisfied using lookaside memory. Only the high-water value is meaningful;
-** the current value is always zero.)^
+** the current value is always zero.</dd>)^
 **
 ** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE]]
 ** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE</dt>
-** <dd>This parameter returns the number malloc attempts that might have
+** <dd>This parameter returns the number of malloc attempts that might have
 ** been satisfied using lookaside memory but failed due to the amount of
 ** memory requested being larger than the lookaside slot size.
 ** Only the high-water value is meaningful;
-** the current value is always zero.)^
+** the current value is always zero.</dd>)^
 **
 ** [[SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL]]
 ** ^(<dt>SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL</dt>
-** <dd>This parameter returns the number malloc attempts that might have
+** <dd>This parameter returns the number of malloc attempts that might have
 ** been satisfied using lookaside memory but failed due to all lookaside
 ** memory already being in use.
 ** Only the high-water value is meaningful;
-** the current value is always zero.)^
+** the current value is always zero.</dd>)^
 **
 ** [[SQLITE_DBSTATUS_CACHE_USED]] ^(<dt>SQLITE_DBSTATUS_CACHE_USED</dt>
 ** <dd>This parameter returns the approximate number of bytes of heap
 ** memory used by all pager caches associated with the database connection.)^
 ** ^The highwater mark associated with SQLITE_DBSTATUS_CACHE_USED is always 0.
+** </dd>
 **
 ** [[SQLITE_DBSTATUS_CACHE_USED_SHARED]]
 ** ^(<dt>SQLITE_DBSTATUS_CACHE_USED_SHARED</dt>
@@ -8913,10 +8983,10 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
 ** memory used by that pager cache is divided evenly between the attached
 ** connections.)^  In other words, if none of the pager caches associated
 ** with the database connection are shared, this request returns the same
-** value as DBSTATUS_CACHE_USED. Or, if one or more or the pager caches are
+** value as DBSTATUS_CACHE_USED. Or, if one or more of the pager caches are
 ** shared, the value returned by this call will be smaller than that returned
 ** by DBSTATUS_CACHE_USED. ^The highwater mark associated with
-** SQLITE_DBSTATUS_CACHE_USED_SHARED is always 0.
+** SQLITE_DBSTATUS_CACHE_USED_SHARED is always 0.</dd>
 **
 ** [[SQLITE_DBSTATUS_SCHEMA_USED]] ^(<dt>SQLITE_DBSTATUS_SCHEMA_USED</dt>
 ** <dd>This parameter returns the approximate number of bytes of heap
@@ -8926,6 +8996,7 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
 ** schema memory is shared with other database connections due to
 ** [shared cache mode] being enabled.
 ** ^The highwater mark associated with SQLITE_DBSTATUS_SCHEMA_USED is always 0.
+** </dd>
 **
 ** [[SQLITE_DBSTATUS_STMT_USED]] ^(<dt>SQLITE_DBSTATUS_STMT_USED</dt>
 ** <dd>This parameter returns the approximate number of bytes of heap
@@ -8962,7 +9033,7 @@ SQLITE_API int sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int r
 ** been written to disk in the middle of a transaction due to the page
 ** cache overflowing. Transactions are more efficient if they are written
 ** to disk all at once. When pages spill mid-transaction, that introduces
-** additional overhead. This parameter can be used help identify
+** additional overhead. This parameter can be used to help identify
 ** inefficiencies that can be resolved by increasing the cache size.
 ** </dd>
 **
@@ -9442,7 +9513,7 @@ typedef struct sqlite3_backup sqlite3_backup;
 ** external process or via a database connection other than the one being
 ** used by the backup operation, then the backup will be automatically
 ** restarted by the next call to sqlite3_backup_step(). ^If the source
-** database is modified by the using the same database connection as is used
+** database is modified by using the same database connection as is used
 ** by the backup operation, then the backup database is automatically
 ** updated at the same time.
 **
@@ -9459,7 +9530,7 @@ typedef struct sqlite3_backup sqlite3_backup;
 ** and may not be used following a call to sqlite3_backup_finish().
 **
 ** ^The value returned by sqlite3_backup_finish is [SQLITE_OK] if no
-** sqlite3_backup_step() errors occurred, regardless or whether or not
+** sqlite3_backup_step() errors occurred, regardless of whether or not
 ** sqlite3_backup_step() completed.
 ** ^If an out-of-memory condition or IO error occurred during any prior
 ** sqlite3_backup_step() call on the same [sqlite3_backup] object, then
@@ -10529,7 +10600,7 @@ SQLITE_API void sqlite3_stmt_scanstatus_reset(sqlite3_stmt*);
 ** METHOD: sqlite3
 **
 ** ^If a write-transaction is open on [database connection] D when the
-** [sqlite3_db_cacheflush(D)] interface invoked, any dirty
+** [sqlite3_db_cacheflush(D)] interface is invoked, any dirty
 ** pages in the pager-cache that are not currently in use are written out
 ** to disk. A dirty page may be in use if a database cursor created by an
 ** active SQL statement is reading from it, or if it is page 1 of a database
@@ -11532,9 +11603,10 @@ SQLITE_API void sqlite3session_table_filter(
 ** is inserted while a session object is enabled, then later deleted while
 ** the same session object is disabled, no INSERT record will appear in the
 ** changeset, even though the delete took place while the session was disabled.
-** Or, if one field of a row is updated while a session is disabled, and
-** another field of the same row is updated while the session is enabled, the
-** resulting changeset will contain an UPDATE change that updates both fields.
+** Or, if one field of a row is updated while a session is enabled, and
+** then another field of the same row is updated while the session is disabled,
+** the resulting changeset will contain an UPDATE change that updates both
+** fields.
 */
 SQLITE_API int sqlite3session_changeset(
  sqlite3_session *pSession,      /* Session object */
@@ -11606,8 +11678,9 @@ SQLITE_API sqlite3_int64 sqlite3session_changeset_size(sqlite3_session *pSession
 ** database zFrom the contents of the two compatible tables would be
 ** identical.
 **
-** It an error if database zFrom does not exist or does not contain the
-** required compatible table.
+** Unless the call to this function is a no-op as described above, it is an
+** error if database zFrom does not exist or does not contain the required
+** compatible table.
 **
 ** If the operation is successful, SQLITE_OK is returned. Otherwise, an SQLite
 ** error code. In this case, if argument pzErrMsg is not NULL, *pzErrMsg
@@ -11742,7 +11815,7 @@ SQLITE_API int sqlite3changeset_start_v2(
 ** The following flags may passed via the 4th parameter to
 ** [sqlite3changeset_start_v2] and [sqlite3changeset_start_v2_strm]:
 **
-** <dt>SQLITE_CHANGESETAPPLY_INVERT <dd>
+** <dt>SQLITE_CHANGESETSTART_INVERT <dd>
 **   Invert the changeset while iterating through it. This is equivalent to
 **   inverting a changeset using sqlite3changeset_invert() before applying it.
 **   It is an error to specify this flag with a patchset.
@@ -12057,19 +12130,6 @@ SQLITE_API int sqlite3changeset_concat(
  void **ppOut                    /* OUT: Buffer containing output changeset */
 );

-
-/*
-** CAPI3REF: Upgrade the Schema of a Changeset/Patchset
-*/
-SQLITE_API int sqlite3changeset_upgrade(
-  sqlite3 *db,
-  const char *zDb,
-  int nIn, const void *pIn,       /* Input changeset */
-  int *pnOut, void **ppOut        /* OUT: Inverse of input */
-);
-
-
-
 /*
 ** CAPI3REF: Changegroup Handle
 **
@@ -366,6 +366,8 @@ struct sqlite3_api_routines {
  /* Version 3.44.0 and later */
  void *(*get_clientdata)(sqlite3*,const char*);
  int (*set_clientdata)(sqlite3*, const char*, void*, void(*)(void*));
+  /* Version 3.50.0 and later */
+  int (*setlk_timeout)(sqlite3*,int,int);
 };

 /*
@@ -699,6 +701,8 @@ typedef int (*sqlite3_loadext_entry)(
 /* Version 3.44.0 and later */
 #define sqlite3_get_clientdata         sqlite3_api->get_clientdata
 #define sqlite3_set_clientdata         sqlite3_api->set_clientdata
+/* Version 3.50.0 and later */
+#define sqlite3_setlk_timeout          sqlite3_api->setlk_timeout
 #endif /* !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION) */

 #if !defined(SQLITE_CORE) && !defined(SQLITE_OMIT_LOAD_EXTENSION)
@@ -21,8 +21,8 @@
 # ===

 YEAR="2025"
-VERSION="3490200"
-SQLITE3MC_VERSION="v2.1.1"
+VERSION="3500200"
+SQLITE3MC_VERSION="v2.2.0"

 # Defines below are sorted alphabetically
 DEFINES="
@@ -43,7 +43,7 @@ If you're using a SQLite encryption extension that is a drop-in replacement for

 # Bundled configuration

-By default, this distribution currently uses SQLite **version 3.49.2** with the following [compilation options](https://www.sqlite.org/compile.html):
+By default, this distribution currently uses SQLite **version 3.50.2** with the following [compilation options](https://www.sqlite.org/compile.html):

 ```
 HAVE_INT16_T=1