Issues

• After a failed COMMIT of ALTER TABLE ... ADD, a SELECT through a view is not rejected in the failed transaction; a later SELECT from the table raises bugcheck 179 (follow-up to #9247 and #9273)

  FirebirdSQL/firebird#9276 · Filter by author tomaszdubiel18 opened on Nov 6, 2026

• Super/SuperClassic: after a kill of an attachment that waits for a relation lock, no other attachment on the server can be killed

  FirebirdSQL/firebird#9275 · Filter by author tomaszdubiel18 opened on Nov 6, 2026

• After a failed COMMIT of ALTER TABLE ... ADD, a SELECT ... WITH LOCK compiled earlier (prepared statement or stored procedure) still stores an empty row (follow-up to #9247)

  FirebirdSQL/firebird#9273 · Filter by author tomaszdubiel18 opened on Nov 5, 2026
  

• Typo in error message 335545336 (temp_space_invalid_pos): "positon" should be "position"

  FirebirdSQL/firebird#9272 · Filter by author AnyCPU opened on Nov 5, 2026

• Server spins at 100% CPU in get_buffer() after disk full and doesn't recover when space is freed

  FirebirdSQL/firebird#9269 · Filter by author IsabellaPlandent opened on Nov 4, 2026
  

• fb_cancel_raise is not honoured promptly for statements with DISTINCT

  FirebirdSQL/firebird#9268 · Filter by author nLeonardt95 opened on Nov 4, 2026

• IS NOT DISTINCT FROM a non-NULL literal loses the UNIQUE row bound and causes a HASH/full-scan regression in Firebird 5.0

  FirebirdSQL/firebird#9262 · Filter by author tomaszdubiel18 opened on Oct 31, 2026
  1

  

• Super: changing Forced Writes while other attachments write leaves the database unusable until all attachments disconnect

  FirebirdSQL/firebird#9259 · Filter by author tomaszdubiel18 opened on Oct 30, 2026
  2

• macOS arm64 pkg 5.0.4: wire-crypt plugin libChaCha.dylib fails to dlopen from non-framework processes (@rpath/lib deps not resolvable)

  FirebirdSQL/firebird#9252 · Filter by author satwareAG-ironMike opened on Oct 29, 2026
  1

• Remote IBatch: continuation of a stream BLOB is decoded as segmented when the default BPB is segmented (isc_net_write_err)

  FirebirdSQL/firebird#9251 · Filter by author ViktorVDev opened on Oct 29, 2026
  1

  

• "Table unknown" after DROP TRIGGER is rolled back (6.0)

  FirebirdSQL/firebird#9248 · Filter by author tomaszdubiel18 opened on Oct 29, 2026
  

• Feature: IBatch: optional per-message inserted/updated/deleted counts

  Feature

  FirebirdSQL/firebird#9240 · Filter by author GilShoshan94 opened on Oct 24, 2026
  

• Bug: IBatch: TAG_RECORD_COUNTS reports 0 for EXECUTE BLOCK messages that change rows

  Bug

  FirebirdSQL/firebird#9239 · Filter by author GilShoshan94 opened on Oct 24, 2026
  

• A query to any MON$ table waits for as long as a DROP TABLE (or RECREATE TABLE) of a table used by another attachment waits in its COMMIT

  FirebirdSQL/firebird#9236 · Filter by author tomaszdubiel18 opened on Oct 22, 2026

• Firebird Client Lockup after fork()

  FirebirdSQL/firebird#9235 · Filter by author medvedo opened on Oct 22, 2026
  2

• isc_get_segment never returns isc_segstr_eof for CAST(text BLOB AS BLOB SUB_TYPE BINARY) when the BLOB charset needs transliteration to a UTF8 connection (5.0.4)

  FirebirdSQL/firebird#9234 · Filter by author waldirpaim opened on Oct 21, 2026

• gbak: value-taking switch without a value placed before -se causes endless recursion of the embedded service manager (thousands of threads)

  FirebirdSQL/firebird#9228 · Filter by author tomaszdubiel18 opened on Oct 21, 2026

• Transaction started with SNAPSHOT AT NUMBER sees changes committed after that snapshot; parallel gbak backup is inconsistent (FK violation on restore)

  FirebirdSQL/firebird#9227 · Filter by author tomaszdubiel18 opened on Oct 21, 2026
  5

  

• Optimize the Window Functions Execution Mechanism

  component: enginetype: improvement
  FirebirdSQL/firebird#9226 · Filter by author asfernandes opened on Oct 21, 2026
  

• Reduce Profiler overhead

  component: profilertype: improvement
  FirebirdSQL/firebird#9225 · Filter by author asfernandes opened on Oct 21, 2026
  

• Regression in FB 6.0: Output message items using plain blr_text/blr_varying fail with string right truncation or malformed string on NONE/OCTETS columns over multi-byte connection charsets

  FirebirdSQL/firebird#9222 · Filter by author mariuz opened on Oct 20, 2026

• Bug: Failed COMMIT followed by ROLLBACK causes TPC bugcheck "Attempt to mark inactive transaction to be dead" (5.0.4)

  FirebirdSQL/firebird#9218 · Filter by author GilShoshan94 opened on Oct 18, 2026

• Firebird Client Deadlock

  FirebirdSQL/firebird#9214 · Filter by author slalom91 opened on Oct 13, 2026
  1

• Transaction-scoped time zone

  FirebirdSQL/firebird#9208 · Filter by author arkinform opened on Oct 9, 2026
  6

  

• Allow selecting compression library and compression level in gbak -ZIP

  rdbtype: improvement
  FirebirdSQL/firebird#9207 · Filter by author balger opened on Oct 8, 2026
  4