# IDA 8.4sp1

**IDA 8.4.240320 (SP1)** ***March 20, 2024***

This Service Pack of IDA 8.4 is primarily a bugfix release.

**Improvements:**

* \+ PC: improve AVX-512 instructions support (BF16, BITALG, FP16, GFNI, VBMI2, VNNI, VP2INTERSECT, VPCLMULQDQ)
* \+ TEAMS: don't match types from LOCAL and REMOTE databases by ordinal if they're not present in BASE
* \+ UI: renamed 'Copy struct type' action to 'Duplicate struct type' to better represent its behavior

**Bugfixes:**

* BUGFIX: cvt64: idb->i64 conversion didn't work if WORKDIR was set in ida.cfg
* BUGFIX: cvt64: some ASM struct member records were not handled when convering .idb to .i64
* BUGFIX: debugger: "Disable ASLR" didn't behave properly in UI on Windows
* BUGFIX: decompiler: fixed interr 50898 when editing structure member types from Pseudocode view
* BUGFIX: eh\_parse: loading PE files with functions having 0 unwind codes could cause IDA to crash on macOS
* BUGFIX: ELF: relocations were sometimes not processed for PIE files without dynamic symbols
* BUGFIX: golang: loading files with corrupted metadata could lead to hanging/frozen IDA
* BUGFIX: IDA could crash if decompiler intialization failed for current database
* BUGFIX: IDAPython: reintroduce dummy ida\_kernwin.CH\_NOIDB for backwards compatibility with old scripts
* BUGFIX: IDC: IDA could crash when calling a non-existing IDC function
* BUGFIX: installer: IDA Demo and Free would not display SVG action icons
* BUGFIX: installer: IDA Home ARM did not include arm\_sys\_reg.cfg which would lead to missing symbolic names for A64 MSRs
* BUGFIX: installer: private Lumina server installer now offers to specify a port to listen on
* BUGFIX: installer: uninstaller was not deleting libpython3.link.dylib and pycache files on macOS, leaving empty .app bundle behind
* BUGFIX: kernel: \_\_ptr32/\_\_ptr64 modifiers were rejected in function prototypes when used for the function return type
* BUGFIX: objc: fixed potential crash on exit
* BUGFIX: PC: function prologs using VEX-encoded SSE instructions were not analyzed properly
* BUGFIX: PDB: IDA could produce "Failed to calculate struct member alignment" and "the maximum recursion level was reached" warnings on large PDBs
* BUGFIX: plugins: correctly pass the argument from plugins.cfg to plugmod\_t::run when there are no flags defined for the entry
* BUGFIX: teams: fixed interr 1846 in some situations
* BUGFIX: teams: fixed multiple issues when merging types
* BUGFIX: teams: hvui: in Local files and Vault files the first line could be empty after opening
* BUGFIX: teams: it was possible to edit types in Local Types during merging, which could lead to corrupted idb
* BUGFIX: TRICORE: not16 instruction was being incorrectly disassembled as nor16
* BUGFIX: UI: correcly retrieve library name for custom signatures files
* BUGFIX: UI: fixed several cases where IDA would open the deprecated Structures view instead of Local Types
* BUGFIX: UI: IDA could crash when enabling "merge environment" in instant debugger (without database)
* BUGFIX: UI: IDA could crash when opening Debugger > Process Options dialog
* BUGFIX: UI: it was not possible to jump from IDA View to Local Types for types with name longer than 23 characters
* BUGFIX: UI: jumping to a structure from IDA View would end up at the end of the structure instead of the start
* BUGFIX: UI: Load SIG and Load TIL buttons would open a "Save file..." instead of "Open file..." dialog
* BUGFIX: UI: Local Types bookmarks could not be organized in folders
* BUGFIX: UI: Local Types editor didn't support ymmword and zmmword in MakeData
* BUGFIX: UI: MakeData (D) carousel would stop working if some steps were disabled
* BUGFIX: UI: MakeData (D) on a 'full' bitfield would lead to interr
* BUGFIX: windbg: IDA UI could lock up when attaching to kernel debugger on a blocked port