Log message:
libxml2: update to 2.15.1.

docs disabled (which is the default) because after changes in 2.15
(see below) they need doxygen + libxslt, introducing a dependency
cycle.

v2.15.1: Oct 16 2025

### Regressions

- parser: Fix attribute normalization and standalone check

### Build

- io: Handle clashing error codes on AIX
- Fixed compilation error on GCC versions prior to 4.5 (Lars Erik Wik)
- meson: Fix install dir of man pages

### Deprecations

- tree: Undeprecate several struct members
- io: Undeprecate xmlOutputBuffer members
- valid: Undeprecate xmlValidGetPotentialChildren

v2.15.0: Sep 15 2025

### Major changes

The API documentation is now generated with Doxygen. Building the
documentation requires the new --with-docs configuration option as well
as Doxygen, xsltproc and the DocBook 4 XSLT stylesheets.

The Python bindings are disabled by default now. Building the bindings
also requires Doxygen.

Support for Schematron is now disabled by default.

The parser option XML_PARSE_UNZIP is now required to read compressed data.

HTML serialization and handling of character encodings is more in line
with the HTML5 spec now.

More accessors for xmlParserCtxt were added.

### Deprecations

More internal functions and struct members were deprecated.

### Removals

The built-in HTTP client and support for LZMA compression were removed.

The custom Windows build system in `win32` was removed in favor of CMake.

### Planned removals

The Python bindings and support for Schematron validation are planned to
be removed in the 2.16 release.

The following features are considered for removal:

- Modules API (xmlmodule.h)
- Support for zlib compressed file I/O

RELAX NG support is still in a bad state and a long-term removal
candidate.

Log message:
*: recursive bump for icu 78.1

Log message:
textproc/libxml2: remove unknown configure options, update homepage

Log message:
libxml2: updated to 2.14.6

v2.14.6: Sep 8 2025

Regressions

- valid: Don't add ids when validating entity content
- Fix initGenericErrorDefaultFunc(NULL) (Samuel Thibault)
- valid: Undeprecate xmlAdd*Decl
- globals: Include HTMLparser.h, fixing Windows build
- io: Fix reading from pipes like stdin on Windows

Security

- regexp: Avoid integer overflow and OOB array access
- tree: Guard against atype corruption

Improvements

- parser: Fix xmlSaturatedAddSizeT argument type

Log message:
libxml2: updated to 2.14.5

v2.14.5: Jul 10 2025

Regressions

- html: Don't abort on encoding errors
- parser: Fix handling of invalid char refs in recovery mode
- xmllint: Print document even in case of XInclude errors
- xmllint: Fix --xinclude --path

Security

- schematron: Fix memory safety issues in xmlSchematronReportOutput
- Schematron: Fix null pointer dereference leading to DoS (Michael Mann)
- Fix potential buffer overflows of interactive shell (Michael Mann)

Improvements

- parser: Fix xmlCtxtIsStopped

Build systems and portability

- schemas: Fix compilation with pre-C99 MSVC
- cmake: Add missing endif() in libxml2-config.cmake.in
- Fix CMake iconv handling after change to private dependency (Markus Rickert)

Log message:
libxml2 py-libxml2: updated to 2.14.4

2.14.4

Regressions

- parser: Fix parsing of PublicIds and VersionNums
- parser: Fix custom SAX parsers without cdataBlock handler
- error: Fix initGenericErrorDefaultFunc compatibility macro again
- io: Make xmlOutputBufferCreate* not free encoder on error
- reader: Fix null deref on malloc failure
- Revert "meson: Install libxml2.py"

Security

- tree: Fix integer overflow in xmlBuildQName

Improvements

- parser: Use parser context as default in resource loader
- parser: Only validate EnumerationTypes when requested
- parser: Undeprecate some parser context members

Build systems

- cmake: Avoid overlinking with non-CMake libxml2-config.cmake
- cmake: Make iconv a private dependency

Log message:
libxml2 py-libxml2: updated to 2.14.3

v2.14.3: May 13 2025

Regressions

- reader: Fix reading compressed data
- parser: Make undeclared entities in XML content fatal
- save: Fix XML escape table
- save: Fix xmlSave with NULL encoding
- Revert "valid: Remove duplicate error messages when streaming"

Bug fixes

- save: Fix serialization of attribute defaults containing <
- io: Fix linkage of __xml*BufferCreateFilename functions

Build systems

- cmake: Fix installation directories in libxml2-config.cmake
- meson: Install libxml2.py

Improvements

- parser: Make xmlCtxtGetValidCtxt depend on VALID_ENABLED
- html: Avoid HTML_PARSE_HTML5 clashing with XML_PARSE_NOENT

Log message:
libxml2: fix Tiger build.