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Update the docs for v5.0.4
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‎CHANGELOG.md‎

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# v5.0.4
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## New features
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* [#8761](https://github.com/FirebirdSQL/firebird/issues/8761): Add API method `Util::convert`
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Contributor(s): Adriano dos Santos Fernandes
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## Improvements
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* [#8928](https://github.com/FirebirdSQL/firebird/issues/8928): Add limit for max value of `-PARALLEL` switch value when restoring a database
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Contributor(s): Vlad Khorsun
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* [#8922](https://github.com/FirebirdSQL/firebird/issues/8922): Update Windows distributions with _zlib_ version 1.3.2
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Contributor(s): Vlad Khorsun
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* [#8912](https://github.com/FirebirdSQL/firebird/issues/8912): Context variables clear/re-initialization support
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Contributor(s): Vlad Khorsun
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* [#8895](https://github.com/FirebirdSQL/firebird/issues/8895): 'invalid request BLR' puts actual error (and procedure where it happened) at the end where it is truncated by ISC API
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Contributor(s): Vlad Khorsun
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* [#8858](https://github.com/FirebirdSQL/firebird/pull/8858): Ensure sequences are replicated even if changed in de-facto read-only transactions
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Contributor(s): Andrey Kravchenko
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* [#8767](https://github.com/FirebirdSQL/firebird/pull/8767): Early diagnostics for the improperly re-initialized replica
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Contributor(s): Dmitry Yemanov
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* [#8746](https://github.com/FirebirdSQL/firebird/pull/8746): Allow `isc_tpb_read_consistency` to imply read committed
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Contributor(s): Dmitry Yemanov
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* [#8695](https://github.com/FirebirdSQL/firebird/issues/8695): Increase Android page size to 16KB
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Contributor(s): Adriano dos Santos Fernandes
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* [#8553](https://github.com/FirebirdSQL/firebird/pull/8553): Get the modification time of a config file with a higher precision to fix cases when it's not reloaded after modification/replacement
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Contributor(s): Ilya Eremin
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## Bugfixes
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* [#8937](https://github.com/FirebirdSQL/firebird/pull/8937): Get rid of the unnecessary permissions for implicit domains
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Contributor(s): Dmitry Yemanov
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* [#8926](https://github.com/FirebirdSQL/firebird/issues/8926): Indexes may not be used for multiple ORed conditions containing both field and non-field references
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Contributor(s): Dmitry Yemanov
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* [#8914](https://github.com/FirebirdSQL/firebird/issues/8914): `SELECT` with multiple `EXISTS` sub-queries fails in case of `SubQueryConversion = true`
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Contributor(s): Dmitry Yemanov
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* [#8911](https://github.com/FirebirdSQL/firebird/issues/8911): Wrong result in case of `SubQueryConversion = true`
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Contributor(s): Dmitry Yemanov
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* [#8901](https://github.com/FirebirdSQL/firebird/issues/8901): Bugcheck during nbackup under high load
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Contributor(s): Vlad Khorsun
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* [#8892](https://github.com/FirebirdSQL/firebird/issues/8892): `JOIN` on nested `UNION` leads in `CROSS JOIN` und Full Table Scan
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Contributor(s): Dmitry Yemanov
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* [#8891](https://github.com/FirebirdSQL/firebird/issues/8891): Regression. Result of cross join of two procedures + unioned with common datasource (e.g. rdb$database) is wrong since 5.0.3.1675
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Contributor(s): Dmitry Yemanov
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* [#8885](https://github.com/FirebirdSQL/firebird/issues/8885): AV when lock manager settings is misconfigured
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Contributor(s): Vlad Khorsun
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* [#8881](https://github.com/FirebirdSQL/firebird/issues/8881): Large amount of unnecessary privileges in `RDB$USER_PRIVILEGES` for SYSDBA
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Contributor(s): Dmitry Yemanov
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* [#8872](https://github.com/FirebirdSQL/firebird/pull/8872): fix(attachment): Avoid recursive lock of `Sync` object on worker detach
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Contributor(s): Vlad Khorsun
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* [#8871](https://github.com/FirebirdSQL/firebird/pull/8871): Fix locking error if `IN/EXISTS` is converted into a semi-join
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Contributor(s): Dmitry Yemanov
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* [#8851](https://github.com/FirebirdSQL/firebird/issues/8851): 'Internal error' when calling outer procedure after deleting unused result variable from inner procedure
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Contributor(s): Vlad Khorsun
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* [#8828](https://github.com/FirebirdSQL/firebird/issues/8828): Gstat does not open database if the system locale is not UTF-8
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Contributor(s): Vasiliy
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* [#8826](https://github.com/FirebirdSQL/firebird/pull/8826): Fixed potential endless loop inside `MET_scan_relation`
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Contributor(s): Vlad Khorsun
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* [#8821](https://github.com/FirebirdSQL/firebird/issues/8821): Regression: natural plan instead of primary/unique index
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Contributor(s): Dmitry Yemanov
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* [#8817](https://github.com/FirebirdSQL/firebird/issues/8817): Fatal lock manager error: invalid lock id
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Contributor(s): Vlad Khorsun
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* [#8815](https://github.com/FirebirdSQL/firebird/pull/8815): Restore the broken record layout optimization by gbak and extend it to the new datatypes
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Contributor(s): Dmitry Yemanov
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* [#8799](https://github.com/FirebirdSQL/firebird/issues/8799): BUGCHECK "decompression overran buffer (179)" when `WITH LOCK` clause is used
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Contributor(s): Ilya Eremin
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* [#8794](https://github.com/FirebirdSQL/firebird/issues/8794): Called procedure parameter changes during execution without assignment when deleting from updatable view
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Contributor(s): Vlad Khorsun
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* [#8772](https://github.com/FirebirdSQL/firebird/pull/8772): fix(pag): Incorrect calculation of last used page
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Contributor(s): TreeHunter
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* [#8766](https://github.com/FirebirdSQL/firebird/pull/8766): File truncation errors may happen during replication in Windows CS
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Contributor(s): Dmitry Yemanov
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* [#8755](https://github.com/FirebirdSQL/firebird/issues/8755): Replicator could produce log segments with duplicated segment numbers
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Contributor(s): Vlad Khorsun
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* [#8749](https://github.com/FirebirdSQL/firebird/issues/8749): Computed index on `RDB$RECORD_VERSION` don't work as expected
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Contributor(s):
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* [#8739](https://github.com/FirebirdSQL/firebird/issues/8739): Wrong `SQLSTATE` in case of table alias conflict
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Contributor(s): Mark Rotteveel
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* [#8737](https://github.com/FirebirdSQL/firebird/issues/8737): "Statement 0, <unknown, bug?>" in trace
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Contributor(s): Artyom Abakumov
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* [#8732](https://github.com/FirebirdSQL/firebird/pull/8732): Add support of the `IN <list>` predicate to the equality distribution logic
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Contributor(s): Dmitry Yemanov
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* [#8726](https://github.com/FirebirdSQL/firebird/issues/8726): Replication error is raised for `CREATE TABLE ... EXTERNAL` if the specified disk does not exist on the replica host
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Contributor(s): Dmitry Yemanov
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* [#8705](https://github.com/FirebirdSQL/firebird/issues/8705): UDF not working on macOS ARM64 installer
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Contributor(s): Adriano dos Santos Fernandes
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* [#8690](https://github.com/FirebirdSQL/firebird/issues/8690): On Windows 7 _isql_ exits silently right after the start
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Contributor(s): Vlad Khorsun
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* [#8688](https://github.com/FirebirdSQL/firebird/pull/8688): Add detach replica in shutdown function when error occurs during apply segment of journal
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Contributor(s): Andrey Kravchenko
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* [#8687](https://github.com/FirebirdSQL/firebird/pull/8687): Prevent race condition when `GlobalObject` destruction routine unlocks global mutex
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Contributor(s): TreeHunter
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* [#8675](https://github.com/FirebirdSQL/firebird/issues/8675): _fbclient_ incompatible to older ODS
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Contributor(s): Adriano dos Santos Fernandes
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* [#8674](https://github.com/FirebirdSQL/firebird/pull/8674): Fix crash during shutdown after unsuccessful `ping()`
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Contributor(s): Dmitry Yemanov
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* [#8673](https://github.com/FirebirdSQL/firebird/issues/8673): Error unable to allocate memory from operating system
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Contributor(s): Vlad Khorsun
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* [#8666](https://github.com/FirebirdSQL/firebird/pull/8666): Fixed crash after calling incorrectly parametrized request
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Contributor(s): Vlad Khorsun
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* [#8665](https://github.com/FirebirdSQL/firebird/issues/8665): `SHOW DEPENDENCIES` command terminates unexpectedly if there are packages in the dependencies
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Contributor(s): Adriano dos Santos Fernandes
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* [#8653](https://github.com/FirebirdSQL/firebird/issues/8653): `TRANSACTION_ROLLBACK` missing in the trace log when appropriate DB-level trigger fires
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Contributor(s): Vlad Khorsun
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* [#8644](https://github.com/FirebirdSQL/firebird/issues/8644): Connection error via `Loopback` provider if it's the first in the `Providers` parameter
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Contributor(s): Alexander Peshkov
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* [#8541](https://github.com/FirebirdSQL/firebird/issues/8541): Deadlock update conflict on replica server
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Contributor(s): Vlad Khorsun
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* [#8535](https://github.com/FirebirdSQL/firebird/issues/8535): `OuterJoinConversion = true` (i.e. default) causes performance regression since 5.0.1.1416-b4b3559
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Contributor(s): Dmitry Yemanov
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* [#8105](https://github.com/FirebirdSQL/firebird/issues/8105): Master database could miss replication segments on Windows Classic Server
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Contributor(s): Vlad Khorsun
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* [GHSA-7jq3-6j3c-5cm2](https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7jq3-6j3c-5cm2): DoS via `op_response` packet from client (CVE-2026-34232)
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Contributor(s): Artyom Ivanov
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* [GHSA-89mq-229g-x47p](https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-89mq-229g-x47p): Buffer overflow on parsing corrupted slice packet (CVE-2026-33337)
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Contributor(s): Artyom Ivanov
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* [GHSA-xrcw-wpjx-pr9](https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-xrcw-wpjx-pr9): CryptCallback DoS (CVE-2026-28224)
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Contributor(s): Ev3nt
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* [GHSA-6crx-4g37-7j49](https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-6crx-4g37-7j49): Pre-Auth DoS (CVE-2026-27890)
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Contributor(s): Artyom Ivanov
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* [GHSA-7cq5-994r-jhrf](https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7cq5-994r-jhrf): Server hangs when using specific clumplet on batch creation (CVE-2026-28214)
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Contributor(s): Artyom Ivanov
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* [GHSA-9884-9qm3-hqch](https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-9884-9qm3-hqch): One packet (`op_slice`) DoS (CVE-2026-28212)
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Contributor(s): Alexey Mochalov
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* [GHSA-mfpr-9886-xjhg](https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-mfpr-9886-xjhg): Information leak vulnerability in firebird3 client when used with newer (>= 4) server (CVE-2025-65104)
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Contributor(s): Alexander Peshkov
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# v5.0.3
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## Improvements

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