Version 1.3.2

Author: madler

CMakeLists.txt

@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.12...3.31)
 project(
     zlib
     LANGUAGES C
-    VERSION 1.3.1.2
+    VERSION 1.3.2
     HOMEPAGE_URL "https://zlib.net/"
     DESCRIPTION "a general-purpose lossless data-compression library")
 

ChangeLog

@@ -1,6 +1,31 @@
 
                 ChangeLog file for zlib
 
+Changes in 1.3.2 (17 Feb 2026)
+- Continued rewrite of CMake build [Vollstrecker]
+- Various portability improvements
+- Various github workflow additions and improvements
+- Check for negative lengths in crc32_combine functions
+- Copy only the initialized window contents in inflateCopy
+- Prevent the use of insecure functions without an explicit request
+- Add compressBound_z and deflateBound_z functions for large values
+- Use atomics to build inflate fixed tables once
+- Add definition of ZLIB_INSECURE to build tests with c89 and c94
+- Add --undefined option to ./configure for UBSan checker
+- Copy only the initialized deflate state in deflateCopy
+- Zero inflate state on allocation
+- Remove untgz from contrib
+- Add _z versions of the compress and uncompress functions
+- Vectorize the CRC-32 calculation on the s390x
+- Set bit 11 of the zip header flags in minizip if UTF-8
+- Update OS/400 support
+- Add a test to configure to check for a working compiler
+- Check for invalid NULL pointer inputs to zlib operations
+- Add --mandir to ./configure to specify manual directory
+- Add LICENSE.Info-Zip to contrib/minizip
+- Remove vstudio projects in lieu of cmake-generated projects
+- Replace strcpy() with memcpy() in contrib/minizip
+
 Changes in 1.3.1.2 (8 Dec 2025)
 - Improve portability to RISC OS
 - Permit compiling contrib/minizip/unzip.c with decryption

LICENSE

@@ -1,6 +1,6 @@
 Copyright notice:
 
- (C) 1995-2025 Jean-loup Gailly and Mark Adler
+ (C) 1995-2026 Jean-loup Gailly and Mark Adler
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

Makefile.in

@@ -1,5 +1,5 @@
 # Makefile for zlib
-# Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
+# Copyright (C) 1995-2026 Jean-loup Gailly, Mark Adler
 # For conditions of distribution and use, see copyright notice in zlib.h
 
 # To compile and test, type:
@@ -31,7 +31,7 @@ VGFMAFLAG=
 
 STATICLIB=libz.a
 SHAREDLIB=libz.so
-SHAREDLIBV=libz.so.1.3.1.2
+SHAREDLIBV=libz.so.1.3.2
 SHAREDLIBM=libz.so.1
 LIBS=$(STATICLIB) $(SHAREDLIBV)
 

README

@@ -1,6 +1,6 @@
 ZLIB DATA COMPRESSION LIBRARY
 
-zlib 1.3.1.2 is a general purpose data compression library.  All the code is
+zlib 1.3.2 is a general purpose data compression library.  All the code is
 thread safe (though see the FAQ for caveats).  The data format used by the zlib
 library is described by RFCs (Request for Comments) 1950 to 1952 at
 https://datatracker.ietf.org/doc/html/rfc1950 (zlib format), rfc1951 (deflate
@@ -31,7 +31,7 @@ Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan.  1997
 issue of Dr.  Dobb's Journal; a copy of the article is available at
 https://zlib.net/nelson/ .
 
-The changes made in version 1.3.1.2 are documented in the file ChangeLog.
+The changes made in version 1.3.2 are documented in the file ChangeLog.
 
 Unsupported third party contributions are provided in directory contrib/ .
 
@@ -81,7 +81,7 @@ Acknowledgments:
 
 Copyright notice:
 
- (C) 1995-2025 Jean-loup Gailly and Mark Adler
+ (C) 1995-2026 Jean-loup Gailly and Mark Adler
 
   This software is provided 'as-is', without any express or implied
   warranty.  In no event will the authors be held liable for any damages

compress.c

@@ -1,5 +1,5 @@
 /* compress.c -- compress a memory buffer
- * Copyright (C) 1995-2005, 2014, 2016 Jean-loup Gailly, Mark Adler
+ * Copyright (C) 1995-2026 Jean-loup Gailly, Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 

contrib/delphi/ZLib.pas

@@ -152,7 +152,7 @@ procedure DecompressToUserBuf(const InBuf: Pointer; InBytes: Integer;
   const OutBuf: Pointer; BufSize: Integer);
 
 const
-  zlib_version = '1.3.1.2';
+  zlib_version = '1.3.2';
 
 type
   EZlibError = class(Exception);

contrib/dotzlib/DotZLib/UnitTests.cs

@@ -156,7 +156,7 @@ public class InfoTests
         public void Info_Version()
         {
             Info info = new Info();
-            Assert.AreEqual("1.3.1.2", Info.Version);
+            Assert.AreEqual("1.3.2", Info.Version);
             Assert.AreEqual(32, info.SizeOfUInt);
             Assert.AreEqual(32, info.SizeOfULong);
             Assert.AreEqual(32, info.SizeOfPointer);

contrib/infback9/inftree9.c

@@ -1,5 +1,5 @@
 /* inftree9.c -- generate Huffman trees for efficient decoding
- * Copyright (C) 1995-2025 Mark Adler
+ * Copyright (C) 1995-2026 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
@@ -9,7 +9,7 @@
 #define MAXBITS 15
 
 const char inflate9_copyright[] =
-   " inflate9 1.3.1.2 Copyright 1995-2025 Mark Adler ";
+   " inflate9 1.3.2 Copyright 1995-2026 Mark Adler ";
 /*
   If you use the zlib library in a product, an acknowledgment is welcome
   in the documentation of your product. If for some reason you cannot
@@ -59,7 +59,7 @@ int inflate_table9(codetype type, unsigned short FAR *lens, unsigned codes,
     static const unsigned short lext[31] = { /* Length codes 257..285 extra */
         128, 128, 128, 128, 128, 128, 128, 128, 129, 129, 129, 129,
         130, 130, 130, 130, 131, 131, 131, 131, 132, 132, 132, 132,
-        133, 133, 133, 133, 144, 64, 204};
+        133, 133, 133, 133, 144, 199, 75};
     static const unsigned short dbase[32] = { /* Distance codes 0..31 base */
         1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49,
         65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073,

contrib/minizip/MiniZip64_info.txt

@@ -1,4 +1,4 @@
-MiniZip - Copyright (c) 1998-2010 - by Gilles Vollant - version 1.1 64 bits from Mathias Svensson
+MiniZip - Copyright (c) 1998-2026 - by Gilles Vollant - version 1.1 64 bits from Mathias Svensson
 
 Introduction
 ---------------------