log4cplus/ChangeLog at master · wilx/log4cplus · GitHub

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# log4cplus 3.0.0

  - **IMPORTANT**: CMake 3.20 or later is now required.

  - **IMPORTANT**: Implementation language is now C++23.

  - **IMPORTANT**: File-based appenders on Windows now use a custom
    Win32-backed file stream. Log files can be renamed or deleted while open by
    another process, and file contents are stored as UTF-8.

  - **IMPORTANT**: Apple embedded-platform builds now use CMake's native iOS
    support. The legacy custom iOS toolchain, `IOS_PLATFORM`/`CMAKE_IOS_*`
    variables, and ARMv7/i386 build scripts have been removed. The obsolete
    Android `LIBRARY_OUTPUT_PATH_ROOT` toolchain integration has also been
    removed.

  - Added support for native CMake device and Simulator builds for iOS 15 and
    later. iOS builds default to static libraries with tests and the logging
    server disabled, and disable interprocedural optimization so that the
    installed archives can be packaged into an XCFramework.

  - Added the Android-only `log4cplus::AndroidAppender`, which writes formatted
    events to Logcat through the system `liblog`. Its `Tag` property defaults
    to `log4cplus`; tags are truncated and long messages are chunked on UTF-8
    boundaries to remain compatible with older Android releases. Android
    shared libraries now intentionally depend on the system `liblog.so`.

  - Modernized Android support around the native NDK CMake toolchain, C++23,
    API level 21, and all four current NDK ABIs. The logging server now
    defaults to disabled on Android, and `LOG4CPLUS_INFO_FORMAT` is available
    there.

  - Fixed installed static CMake packages to resolve their threading
    dependency and provide the canonical `log4cplus::log4cplus` target while
    retaining the decorated static target. Android static consumers also
    receive the required system `log` library dependency.

  - Fixed `SocketAppender` and `SysLogAppender` reconnects to preserve the
    configured IPv6 setting.

  - Improved Apple and iOS socket portability by preventing `SIGPIPE` on
    socket writes and using native descriptor and size types without narrowing
    conversions.

  - `Win32ConsoleAppender` now supports a `ColorMode` property. The new `vt`
    and `force-vt` modes can emit ANSI SGR color sequences from the existing
    `TextColor` setting, while redirected output remains plain unless
    `force-vt` is selected.

  - Added `Win32TraceLoggingAppender`, a manifest-free ETW TraceLogging
    appender for modern Windows builds with `TraceLoggingProvider.h`. It uses
    a fixed log4cplus provider and emits structured fields from each logging
    event.