diff --git a/libs/LuaJIT/.gitignore b/libs/LuaJIT/.gitignore
index 1a07bf75..9fb0222c 100644
--- a/libs/LuaJIT/.gitignore
+++ b/libs/LuaJIT/.gitignore
@@ -3,6 +3,7 @@
*.obj
*.lib
*.exp
+*.pdb
*.dll
*.exe
*.manifest
diff --git a/libs/LuaJIT/.relver b/libs/LuaJIT/.relver
index 685bddbc..b5c311d4 100644
--- a/libs/LuaJIT/.relver
+++ b/libs/LuaJIT/.relver
@@ -1 +1 @@
-1762386122
+1781602682
diff --git a/libs/LuaJIT/COPYRIGHT b/libs/LuaJIT/COPYRIGHT
index a192ae49..955d0d1e 100644
--- a/libs/LuaJIT/COPYRIGHT
+++ b/libs/LuaJIT/COPYRIGHT
@@ -1,7 +1,7 @@
===============================================================================
LuaJIT -- a Just-In-Time Compiler for Lua. https://luajit.org/
-Copyright (C) 2005-2025 Mike Pall. All rights reserved.
+Copyright (C) 2005-2026 Mike Pall. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
diff --git a/libs/LuaJIT/Makefile b/libs/LuaJIT/Makefile
index c41b3345..2e97ed6a 100644
--- a/libs/LuaJIT/Makefile
+++ b/libs/LuaJIT/Makefile
@@ -10,7 +10,7 @@
# For MSVC, please follow the instructions given in src/msvcbuild.bat.
# For MinGW and Cygwin, cd to src and run make with the Makefile there.
#
-# Copyright (C) 2005-2025 Mike Pall. See Copyright Notice in luajit.h
+# Copyright (C) 2005-2026 Mike Pall. See Copyright Notice in luajit.h
##############################################################################
MAJVER= 2
diff --git a/libs/LuaJIT/README b/libs/LuaJIT/README
index 201f1b72..0406567d 100644
--- a/libs/LuaJIT/README
+++ b/libs/LuaJIT/README
@@ -5,7 +5,7 @@ LuaJIT is a Just-In-Time (JIT) compiler for the Lua programming language.
Project Homepage: https://luajit.org/
-LuaJIT is Copyright (C) 2005-2025 Mike Pall.
+LuaJIT is Copyright (C) 2005-2026 Mike Pall.
LuaJIT is free software, released under the MIT license.
See full Copyright Notice in the COPYRIGHT file or in luajit.h.
diff --git a/libs/LuaJIT/doc/bluequad-print.css b/libs/LuaJIT/doc/bluequad-print.css
index 5bfda5d3..c0c37c38 100644
--- a/libs/LuaJIT/doc/bluequad-print.css
+++ b/libs/LuaJIT/doc/bluequad-print.css
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004-2025 Mike Pall.
+/* Copyright (C) 2004-2026 Mike Pall.
*
* You are welcome to use the general ideas of this design for your own sites.
* But please do not steal the stylesheet, the layout or the color scheme.
diff --git a/libs/LuaJIT/doc/bluequad.css b/libs/LuaJIT/doc/bluequad.css
index 5334a759..45ba2d57 100644
--- a/libs/LuaJIT/doc/bluequad.css
+++ b/libs/LuaJIT/doc/bluequad.css
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004-2025 Mike Pall.
+/* Copyright (C) 2004-2026 Mike Pall.
*
* You are welcome to use the general ideas of this design for your own sites.
* But please do not steal the stylesheet, the layout or the color scheme.
diff --git a/libs/LuaJIT/doc/contact.html b/libs/LuaJIT/doc/contact.html
index d8d34a69..d5bbb75d 100644
--- a/libs/LuaJIT/doc/contact.html
+++ b/libs/LuaJIT/doc/contact.html
@@ -3,7 +3,7 @@
Contact
-
+
@@ -94,7 +94,7 @@ don't like that, please complain to Google or Microsoft, not me.
@@ -384,6 +386,24 @@ type.
Conversions not listed above will raise an error. E.g. it's not
possible to convert a pointer to a complex number or vice versa.
+
+* Some conversions from double have a larger defined range to
+allow for mixed-signedness conversions, which are common in C code.
+E.g. initializing an int32_t field with 0xffffffff
+or initializing an uint32_t or uint64_t field with
+-1. Under strict conversion rules, these assignments would
+give undefined results, since Lua numbers are doubles. The extended
+ranges make these conversions defined. Lua numbers that are even
+outside that range give an architecture-specific result.
+
+
+Please note that doubles do not have the precision to represent the
+whole signed or unsigned 64 bit integer range. Beware of large hex
+constants in particular: e.g. 0xffffffffffffffff is a double
+rounded up to 0x1p64 during parsing. This will not
+convert to a defined 64 bit integer value. Use the 64 bit literal
+syntax instead, i.e. 0xffffffffffffffffULL.
+