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# v4.0 Beta 1 (unreleased)
# v4.0 Beta 2 (unreleased)
## New features
* [CORE-6287](http://tracker.firebirdsql.org/browse/CORE-6287): SET BIND OF type1 TO type2
Reference(s): [/doc/sql.extensions/README.set_bind.md](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.set_bind.md)
Contributor(s): Alex Peshkoff
* [CORE-6285](http://tracker.firebirdsql.org/browse/CORE-6285): SQL-level replication management
Reference(s): [/doc/README.replication.md](https://github.com/FirebirdSQL/firebird/raw/master/doc/replication.md), [/doc/sql.extensions/README.ddl.txt](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.ddl.txt)
Contributor(s): Dmitry Yemanov
* [CORE-6109](http://tracker.firebirdsql.org/browse/CORE-6109): Changed FLOAT to a SQL standard compliant FLOAT datatype
Reference(s): [/doc/sql.extensions/README.floating_point_types.md](https://github.com/FirebirdSQL/firebird/raw/master/doc/doc/sql.extensions/README.floating_point_types.md)
Contributor(s): Mark Rotteveel
* [CORE-6018](http://tracker.firebirdsql.org/browse/CORE-6018): Make it possible to start multiple transactions (possibly in different attachments) using the same initial transaction snapshot
Reference(s): [/doc/README.transaction_at_snapshot.md](https://github.com/FirebirdSQL/firebird/raw/master/doc/README.transaction_at_snapshot.md)
Contributor(s): Adriano dos Santos Fernandes
* [CORE-4933](http://tracker.firebirdsql.org/browse/CORE-4933): Add better transaction control to ISQL
Reference(s): [/doc/README.isql_enhancements.txt](https://github.com/FirebirdSQL/firebird/raw/master/doc/README.isql_enhancements.txt)
Contributor(s): Vlad Khorsun
* [CORE-3435](http://tracker.firebirdsql.org/browse/CORE-3435): Lateral derived tables
Reference(s): [/doc/sql.extensions/README.derived_tables.txt](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.derived_tables.txt)
Contributor(s): Dmitry Yemanov
## Improvements
* [CORE-6286](http://tracker.firebirdsql.org/browse/CORE-6286): Make usage of TIMESTAMP/TIME WITH TIME ZONE convenient for users when appropriate ICU library is not installed on the client side
Reference(s): [/doc/sql.extensions/README.time_zone.md](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.README.time_zone.md), [/doc/sql.extensions/README.set_bind.md](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.README.set_bind.md)
Contributor(s): Alex Peshkoff
* [CORE-6279](http://tracker.firebirdsql.org/browse/CORE-6279): Put options in user management statements in any order
Reference(s): [/doc/sql.extensions/README.user_management](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.user_management)
Contributor(s): Alex Peshkoff
* [CORE-6278](http://tracker.firebirdsql.org/browse/CORE-6278): Efficient table scans for DBKEY-based range conditions
Contributor(s): Dmitry Yemanov
* [CORE-6274](http://tracker.firebirdsql.org/browse/CORE-6274): Increase parse speed of long queries
Note(s): Backported into v3.0.6
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6268](http://tracker.firebirdsql.org/browse/CORE-6268): Add methods to set various names (field, relation, etc.) in metadata builder
Reference(s): [/doc/Using_OO_API.html](https://github.com/FirebirdSQL/firebird/raw/master/doc/Using_OO_API.html)
Contributor(s): Alex Peshkoff
* [CORE-6239](http://tracker.firebirdsql.org/browse/CORE-6239): Procedures and EXECUTE BLOCK without RETURNS should not be allowed to use SUSPEND
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6237](http://tracker.firebirdsql.org/browse/CORE-6237): Performance problem when using SRP plugin
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6220](http://tracker.firebirdsql.org/browse/CORE-6220): Enable delivery of known to the client key to any connection to the server
Contributor(s): Alex Peshkoff
* [CORE-6219](http://tracker.firebirdsql.org/browse/CORE-6219): Add support for special (inf/nan) values when sorting DECFLOAT values
Contributor(s): Alex Peshkoff
* [CORE-6095](http://tracker.firebirdsql.org/browse/CORE-6095): Extend trace record for COMMIT/ROLLBACK RETAINING to allow chaining of transaction ids
Note(s): Backported into v3.0.6
Contributor(s): Vlad Khorsun
* [CORE-6069](http://tracker.firebirdsql.org/browse/CORE-6069): Show OS-specific error when entrypont is not found in dynamic library
Contributor(s): Alex Peshkoff
* [CORE-6058](http://tracker.firebirdsql.org/browse/CORE-6058): Change behavior of skipped and repeated wall times within time zones
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6057](http://tracker.firebirdsql.org/browse/CORE-6057): Bind setting for Firebird 4 extended precision numeric/decimal
Contributor(s): Alex Peshkoff
* [CORE-6049](http://tracker.firebirdsql.org/browse/CORE-6049): Builtin functions converting binary string to hexadecimal representation and vice versa
Reference(s): [/doc/sql.extensions/README.builtin_functions.txt](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.builtin_functions.txt)
Contributor(s): Alex Peshkoff
* [CORE-6048](http://tracker.firebirdsql.org/browse/CORE-6048): Provide ability to see current state of DB encryption
Reference(s): [/doc/README.monitoring_tables](https://github.com/FirebirdSQL/firebird/raw/master/doc/README.monitoring_tables)
Contributor(s): Alex Peshkoff
* [CORE-6032](http://tracker.firebirdsql.org/browse/CORE-6032): Add DPB properties for time zone bind and decfloat configuration
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6017](http://tracker.firebirdsql.org/browse/CORE-6017): Add transaction info fb\_info\_tra\_snapshot\_number
Contributor(s): Vlad Khorsun
* [CORE-5658](http://tracker.firebirdsql.org/browse/CORE-5658): Execute statement with excess parameters
Reference(s): [/doc/sql.extensions/README.execute_statement2](https://github.com/FirebirdSQL/firebird/raw/master/doc/sql.extensions/README.execute_statement2)
Contributor(s): Vlad Khorsun
* [CORE-5538](http://tracker.firebirdsql.org/browse/CORE-5538): Add ability to backup/restore only those (several) tables which are enumerated as command line argument (pattern)
Reference(s): [/doc/README.gbak](https://github.com/FirebirdSQL/firebird/raw/master/doc/README.gbak)
Contributor(s): Dimitry Sibiryakov
* [CORE-4726](http://tracker.firebirdsql.org/browse/CORE-4726): Implement REcreate user <user_name> password <user_pwd>
Contributor(s): Alex Peshkoff
* [CORE-4579](http://tracker.firebirdsql.org/browse/CORE-4579): Distribute separate header files instead merged one
Contributor(s): Dimitry Sibiryakov
* [CORE-4462](http://tracker.firebirdsql.org/browse/CORE-4462): Make it possible to restore compressed .nbk files without explicitly decompressing them
Contributor(s): Alex Peshkoff
## Bugfixes
* [CORE-6283](http://tracker.firebirdsql.org/browse/CORE-6283): isNullable() in message metadata, returned by metadata builder, does not match with datatype set by setType() in metadata builder
Contributor(s): Alex Peshkoff
* [CORE-6282](http://tracker.firebirdsql.org/browse/CORE-6282): Change type of MON$ATTACHMENTS.MON$IDLE\_TIMER and MON$STATEMENTS.MON$STATEMENT\_TIMER to TIMESTAMP WITH TIME ZONE
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6281](http://tracker.firebirdsql.org/browse/CORE-6281): Invalid timestamp errors with RDB$TIME\_ZONE_UTIL.TRANSITIONS
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6280](http://tracker.firebirdsql.org/browse/CORE-6280): MERGE statement loses parameters in WHEN (NOT) MATCHED clause that will never be matched, crashes server in some situations
Note(s): Backported into v3.0.6
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6272](http://tracker.firebirdsql.org/browse/CORE-6272): Failed attach to a database is not traced
Contributor(s): Alex Peshkoff
* [CORE-6266](http://tracker.firebirdsql.org/browse/CORE-6266): Deleting records from MON$ATTACHMENTS using ORDER BY clause doesn't close the corresponding attachments
Note(s): Backported into v3.0.6
Contributor(s): Dmitry Yemanov
* [CORE-6265](http://tracker.firebirdsql.org/browse/CORE-6265): Mapping rules are destroyed by backup / restore
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6264](http://tracker.firebirdsql.org/browse/CORE-6264): GBAK with PIPE to stdout: invalid content if user '-se <host>:service_mgr' command switch
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6262](http://tracker.firebirdsql.org/browse/CORE-6262): SHOW DOMAIN/TABLE does not display character set of system objects
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6260](http://tracker.firebirdsql.org/browse/CORE-6260): Warnings are not always displayed in ISQL
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6254](http://tracker.firebirdsql.org/browse/CORE-6254): Server crashes when using SET TRANSACTION and ON TRANSACTION START trigger uses EXECUTE STATEMENT against current transaction
Note(s): Backported into v3.0.6
Contributor(s): Vlad Khorsun
* [CORE-6253](http://tracker.firebirdsql.org/browse/CORE-6253): Crash caused by the locked fb_lock file
Note(s): Backported into v3.0.6
Contributor(s): Vlad Khorsun
* [CORE-6252](http://tracker.firebirdsql.org/browse/CORE-6252): UNIQUE CONSTRAINT violation
Note(s): Backported into v3.0.6
Contributor(s): Vlad Khorsun
* [CORE-6251](http://tracker.firebirdsql.org/browse/CORE-6251): Crash when built-in function LEFT or RIGHT is missing its 2nd argument
Note(s): Backported into v3.0.6
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6250](http://tracker.firebirdsql.org/browse/CORE-6250): Signature mismatch when creating package body on identical packaged procedure header
Note(s): Backported into v3.0.6
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6248](http://tracker.firebirdsql.org/browse/CORE-6248): A number of errors when database name is longer than 255 symbols
Contributor(s): Alex Peshkoff
* [CORE-6243](http://tracker.firebirdsql.org/browse/CORE-6243): Regression: v4 Beta 1 rejects POSITION element of v2.5 defined SQL2003 CREATE TRIGGER syntax
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6241](http://tracker.firebirdsql.org/browse/CORE-6241): Values greater than number of days between 01.01.0001 and 31.12.9999 (=3652058) can be added or subtracted from DATE
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6238](http://tracker.firebirdsql.org/browse/CORE-6238): DECFLOAT: subtraction Num1 - Num2 leads to "Decimal float overflow" if Num2 is specified in scientific notation and less than max double (1.7976931348623157e308)
Contributor(s): Alex Peshkoff
* [CORE-6236](http://tracker.firebirdsql.org/browse/CORE-6236): RDB$TIME_ZONE_UTIL package has wrong privilege for PUBLIC
Contributor(s): Adriano dos Santos Fernandes, Dmitry Yemanov
* [CORE-6233](http://tracker.firebirdsql.org/browse/CORE-6233): Wrong dependencies of stored function on view after backup/restore
Note(s): Backported into v3.0.6
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6231](http://tracker.firebirdsql.org/browse/CORE-6231): Server crashes on shutdown of XNET connection to a local database when events have been registered
Note(s): Backported into v3.0.6
Contributor(s): Vlad Khorsun
* [CORE-6230](http://tracker.firebirdsql.org/browse/CORE-6230): Unable to connect with database if security.db reference is removed from databases.conf file
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6227](http://tracker.firebirdsql.org/browse/CORE-6227): isc\_info\_svc\_user\_dbpath always returns alias of main security database
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6224](http://tracker.firebirdsql.org/browse/CORE-6224): Server crash: re-destruction of the rem_port object
Note(s): Backported into v3.0.6
Contributor(s): Dmitry Kovalenko, Alex Peshkoff
* [CORE-6221](http://tracker.firebirdsql.org/browse/CORE-6221): Incorrect (throw-based) allocFunc for zlib1: memory leak is possible
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6218](http://tracker.firebirdsql.org/browse/CORE-6218): COUNT(DISTINCT <DECFLOAT_FIELD>) leads FB to crash when there are duplicate values of this field
Contributor(s): Alex Peshkoff
* [CORE-6217](http://tracker.firebirdsql.org/browse/CORE-6217): [inet.cpp] Dangerous work with pointer: delete ptr; ptr=new ;
Note(s): Backported into v3.0.6
Contributor(s): Dmitry Kovalenko, Alex Peshkoff
* [CORE-6214](http://tracker.firebirdsql.org/browse/CORE-6214): Update outdated tzdata version
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6212](http://tracker.firebirdsql.org/browse/CORE-6212): Authentication plugin on server may get garbage data from client instead empty packet
Contributor(s): Alex Peshkoff
* [CORE-6211](http://tracker.firebirdsql.org/browse/CORE-6211): Command "ISQL -X" can not extract ROLE name when use multi-byte charset for connection
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6208](http://tracker.firebirdsql.org/browse/CORE-6208): Grant lost in security.db after backup/restore cycle
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6207](http://tracker.firebirdsql.org/browse/CORE-6207): Modifications needed to complile Firebird.pas under FPC
Contributor(s): Alex Peshkoff
* [CORE-6206](http://tracker.firebirdsql.org/browse/CORE-6206): VARCHAR of insufficient length used for set bind of decfloat to varchar
Contributor(s): Vlad Khorsun
* [CORE-6205](http://tracker.firebirdsql.org/browse/CORE-6205): Generate proper error for UNION DISTINCT with more than 255 columns
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6186](http://tracker.firebirdsql.org/browse/CORE-6186): Original content of column which is involved into ENCRYPT() is displayed as distorted view after this call
Contributor(s): Alex Peshkoff
* [CORE-6181](http://tracker.firebirdsql.org/browse/CORE-6181): Operations when using "SET DECFLOAT BIND BIGINT,n" with result of 11+ digits, fail with "Decimal float invalid operation"
Contributor(s): Alex Peshkoff
* [CORE-6174](http://tracker.firebirdsql.org/browse/CORE-6174): ibase.h is missing from nightly builds
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6170](http://tracker.firebirdsql.org/browse/CORE-6170): Cannot install on CentOS 8 because version of LibTomMath and LibNCurses library
Contributor(s): Alex Peshkoff
* [CORE-6166](http://tracker.firebirdsql.org/browse/CORE-6166): Problems with long object names (> 255 bytes)
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6160](http://tracker.firebirdsql.org/browse/CORE-6160): SUBSTRING of non-text/-blob is described to return NONE character set in DSQL
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6159](http://tracker.firebirdsql.org/browse/CORE-6159): SUBSTRING SIMILAR is described with wrong data type in DSQL
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6130](http://tracker.firebirdsql.org/browse/CORE-6130): Creating backup to stdout using service manager is broken
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-6116](http://tracker.firebirdsql.org/browse/CORE-6116): Metadata script extracted using ISQL of a database restored from a v2.5.9 backup is invalid when table has COMPUTED BY fields
Note(s): Backported into v3.0.6
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6110](http://tracker.firebirdsql.org/browse/CORE-6110): 64-bit transaction IDs are not stored properly in status vector
Contributor(s): Ilya Eremin
* [CORE-6080](http://tracker.firebirdsql.org/browse/CORE-6080): Attempt to drop existing user randomly fails with "336723990 : record not found for user"
Contributor(s): Vlad Khorsun
* [CORE-6071](http://tracker.firebirdsql.org/browse/CORE-6071): Restore of encrypted backup of database with SQL dialect 1 fails
Contributor(s): Alex Peshkoff
* [CORE-6061](http://tracker.firebirdsql.org/browse/CORE-6061): Building with --with-builtin-tommath doesn't work
Contributor(s): Alex Peshkoff
* [CORE-6056](http://tracker.firebirdsql.org/browse/CORE-6056): Overflow warnings when building some collations
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6046](http://tracker.firebirdsql.org/browse/CORE-6046): Incorrect time zone parsing reads garbage in memory
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6044](http://tracker.firebirdsql.org/browse/CORE-6044): ISQL issues with increased identifier length
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6034](http://tracker.firebirdsql.org/browse/CORE-6034): The original time zone should be set to the current time zone at routine invocation
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6033](http://tracker.firebirdsql.org/browse/CORE-6033): SUBSTRING(CURRENT_TIMESTAMP) does not work
Contributor(s): Adriano dos Santos Fernandes
* [CORE-6019](http://tracker.firebirdsql.org/browse/CORE-6019): Wire compression does not work without MSVC 2010 runtime installation
Contributor(s): Vlad Khorsun
* [CORE-5976](http://tracker.firebirdsql.org/browse/CORE-5976): GBAK multi-database file restore uses wrong minimum number of pages for first database file
Contributor(s): Mark Rotteveel
* [CORE-5972](http://tracker.firebirdsql.org/browse/CORE-5972): External engine trigger crashing server if table have computed field
Note(s): Backported into v3.0.6
Contributor(s): Adriano dos Santos Fernandes
* [CORE-5957](http://tracker.firebirdsql.org/browse/CORE-5957): Bug in SIMILAR TO when adding numeric quantifier as bound for repetetion of expression leads to empty resultset
Contributor(s): Adriano dos Santos Fernandes
* [CORE-5931](http://tracker.firebirdsql.org/browse/CORE-5931): SIMILAR TO does not return result when invalid pattern is used
Contributor(s): Adriano dos Santos Fernandes
* [CORE-5892](http://tracker.firebirdsql.org/browse/CORE-5892): SQL SECURITY DEFINER context is not properly evaluated for monitoring tables
Contributor(s): Roman Simakov
* [CORE-5697](http://tracker.firebirdsql.org/browse/CORE-5697): Conversion from numeric literals to DECFLOAT adds precision that is not originally present
Contributor(s): Alex Peshkoff
* [CORE-5696](http://tracker.firebirdsql.org/browse/CORE-5696): Conversion from zero numeric literals to DECFLOAT results in incorrect value
Contributor(s): Alex Peshkoff
* [CORE-5691](http://tracker.firebirdsql.org/browse/CORE-5691): File description on Firebird executables should be specific
Contributor(s): Vlad Khorsun
* [CORE-5664](http://tracker.firebirdsql.org/browse/CORE-5664): SIMILAR TO is substantially (500-700x) slower than LIKE on trivial pattern matches with VARCHAR data
Contributor(s): Adriano dos Santos Fernandes
* [CORE-5445](http://tracker.firebirdsql.org/browse/CORE-5445): Cannot install on Debian Stretch/Testing because version of LibTomMath library
Contributor(s): Alex Peshkoff
* [CORE-5364](http://tracker.firebirdsql.org/browse/CORE-5364): gfix -online normal <db> (executed in session #1) does not produce error when there is a SYSDBA-owned session #2
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
* [CORE-4893](http://tracker.firebirdsql.org/browse/CORE-4893): SIMILAR-TO leads FB to crash when matching blob with size > 2Gb to a string literal
Contributor(s): Adriano dos Santos Fernandes
* [CORE-4874](http://tracker.firebirdsql.org/browse/CORE-4874): Infinite "SIMILAR TO" matching
Contributor(s): Adriano dos Santos Fernandes
* [CORE-4739](http://tracker.firebirdsql.org/browse/CORE-4739): Accent insensitive comparison: diacritical letters with DIAGONAL crossing stroke pass only test on EQUALITY to their non-accented forms
Contributor(s): Adriano dos Santos Fernandes
* [CORE-3858](http://tracker.firebirdsql.org/browse/CORE-3858): Very poor performance of SIMILAR TO on some arguments
Contributor(s): Adriano dos Santos Fernandes
* [CORE-3380](http://tracker.firebirdsql.org/browse/CORE-3380): Disable reading from the newly created BLOB
Contributor(s): Adriano dos Santos Fernandes
* [CORE-2251](http://tracker.firebirdsql.org/browse/CORE-2251): GBAK doesn't return error code
Note(s): Backported into v3.0.6
Contributor(s): Alex Peshkoff
# v4.0 Beta 1 (20-Feb-2019)
## New features