--- ibx/trunk/changelog	2021/02/25 11:27:14	314
+++ ibx/trunk/changelog	2021/02/25 11:56:36	315
@@ -1,3 +1,64 @@
+IBX Change Log  version (2.4-0 Build 12473) Wed, 17 Feb 2021 10:49:57 +0000
+
+1. Firebird 4 support added.
+
+2. New FB4 data types TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, DECFLOAT and
+   extended precision NUMERIC fields are supported.
+
+3. TFmtBCDField is used to support access to DECFLOAT and extended precision NUMERIC fields.
+
+4. TIBDateTimeField and TIBTimeField are introduced in support of TIMESTAMP WITH TIME ZONE
+   and TIME WITH TIME ZONE fields. These inherit from TDateTimeField.
+
+5. IBExtract now supports FB4 enhancements:
+   - new data types as above
+   - Identity column extensions
+   - Default user role
+   - SQL Security clause for Database, Tables, Procedures, Functions and Triggers
+   - Internal Functions
+
+6. IBExtract: new event: OnExtractLines.
+
+7. IBExtract: revert create trigger to legacy syntax see Firebird CORE-6243, CORE-5545 and DOC-145
+
+8. IBXServices: Server version no. parsing now allows any letter before major version number
+   and is no longer restricted to 'V' e.g. "LI-T4.0.0.1436 Firebird 4.0 Beta 1"
+
+9. TIBDataSet and TIBQuery: new property TZTextOption. Used to determine the default
+   format for rendering a time zone.
+
+10. TIBDataSet and TIBQuery: new property DefaultTZDate. Used to provide the default date
+     to convert TIME WITH TIME ZONE data type values to and from GMT.
+
+11. Unit name IBTypes changed to IBInternals. Internal interfaces TIBGUIInterface and TIBTimerInf renamed to
+    IIBGUIInterface and IIBTimerInf respectively.
+
+12. Constants: DPBPrefix and TPBPrefix moved to IB unit. DPBConstantNames and TPBConstantNames
+    now accessible as properties of TIBDatabase and TIBTransaction respectively.
+
+13. String Fields: when a fixed character with (CHAR) field is returned, it is now
+    truncated to its fixed character width rather than being right padded with
+    white space to the maximum data size.
+
+14. TIBTable.Empty table. In additional to deleting all records in the underlying
+    table, the internal buffers are now also flushed ensuring that the TIBTable is
+    also empty.
+
+15. TBatchSQLStatementReader: Line buffer is now cleared on call to reset.
+
+16. TIBXControlService descendents: DatabaseName may now be set using a database
+    connect string. The database name is extracted from the connect string.
+
+17. DBControlGrid: Minor bug fixes. avoid AV on form closure, avoid black panel
+
+18. TIBExtract: Data type of COMPUTED By columns is no longer included in SQL.
+
+19. Local database on Linux and with legacy API and FB 2.5 embedded server: fixed problem with password
+    not being present as required.
+
+20. IBTreeView split into DBTreeView and IBTreeView. This former is an IBX indepedent
+    version that can be customised to work with other database drivers.
+
 IBX Change Log  version (2.3-5 Build 12350) Tue, 25 Aug 2020 16:11:02 +0100
 
 1.  TIBStringField: when a string value is read from a dataset buffer, if the
@@ -10,7 +71,7 @@ IBX Change Log  version (2.3-5 Build 123
     SQLFilterParams property is assumed to be a SQL condition clause and
     ANDed into the Where clause of the SQL Select statement provided as a
     dataset property. Each such SQL condition thus acts as an additional filter
-    on the dataset. (Not yet tested)
+    on the dataset.
 
 3.  The Filtered property inherited from TDataset is no longer used for SQL (server
     side filters).
@@ -45,12 +106,32 @@ IBX Change Log  version (2.3-5 Build 123
     added back in.
 
 12. IBCustomDataSet: CanInsert, CanEdit, CanDelete and CanRefresh updated to return
-    false if query contains white space and not just empty.
+    false if query contains only white space and not just empty.
 
 12. IBCustomDataset: Blob data is now cleared when TDataSet.Cancel is called. This
     should ensure that (e.g.) a TDBMemo is correctly refreshed after a dataset edit
     is cancelled.
 
+13. IBCustomDataset: SetArrayIntf should no longer cause an access violation if
+    called on a null field.
+
+14. IBCustomDataSet: An access violation should no longer occur when calling CancelUpdates
+    results in an empty dataTC86		Client side Filtered Dataset	1	X
+set.
+
+15. IBCustomDataSet: OnUpdateError should now be called in all circumstances when
+    a cached update is applied and an exception is raised.
+
+16. IBCustomDataSet: Avoid access violation when SetBookmarkData called with nil pointer.
+
+17. Console Mode Local Database support: backup/restore should now work correctly.
+
+18. Local Database Support: if an upgrade fails, a downgrade is now performed if
+    possible and an exception raised.
+
+19. MinimumVersionNo added to Local Database Support. Database will not open if
+    below this version no. and upgrade not possible.
+
 IBX Change Log  version (2.3-4 Build 12041) Fri, 17 Apr 2020 14:00:32 +0100
 
 1.  TIBXDataSet and Generators: Generator Names that are not all upper case or