* Provide basic implementation for ``FrozenImporter.get_source()`` that
allows reading source from ``.py`` files that are collected by hooks as
data files. (:issue:`[#5697](https://github.com/pyinstaller/pyinstaller/issues/5697)`)
* Raise the maximum allowed size of ``CArchive`` (and consequently ``onefile``
executables) from 2 GiB to 4 GiB. (:issue:`[#3939](https://github.com/pyinstaller/pyinstaller/issues/3939)`)
* The `unbuffered stdio` mode (the ``u`` option) now sets the
``Py_UnbufferedStdioFlag``
flag to enable unbuffered stdio mode in Python library. (:issue:`[#1441](https://github.com/pyinstaller/pyinstaller/issues/1441)`)
* Windows: Set EXE checksums. Reduces false-positive detection from antiviral
software. (:issue:`[#5579](https://github.com/pyinstaller/pyinstaller/issues/5579)`)
* Add new command-line options that map to collect functions from hookutils:
``--collect-submodules``, ``--collect-data``, ``--collect-binaries``,
``--collect-all``, and ``--copy-metadata``. (:issue:`[#5391](https://github.com/pyinstaller/pyinstaller/issues/5391)`)
* Add new hook utility :func:`~PyInstaller.utils.hooks.collect_entry_point` for
collecting plugins defined through setuptools entry points. (:issue:`[#5734](https://github.com/pyinstaller/pyinstaller/issues/5734)`)
Bugfix
* (macOS) Fix ``Bad CPU type in executable`` error in helper-spawned python
processes when running under ``arm64``-only flavor of Python on Apple M1.
(:issue:`[#5640](https://github.com/pyinstaller/pyinstaller/issues/5640)`)
* (OSX) Suppress missing library error messages for system libraries as
those are never collected by PyInstaller and starting with Big Sur,
they are hidden by the OS. (:issue:`[#5107](https://github.com/pyinstaller/pyinstaller/issues/5107)`)
* (Windows) Change default cache directory to ``LOCALAPPDATA``
(from the original ``APPDATA``).
This is to make sure that cached data
doesn't get synced with the roaming profile.
For this and future versions ``AppData\Roaming\pyinstaller``
might be safely deleted. (:issue:`[#5537](https://github.com/pyinstaller/pyinstaller/issues/5537)`)
* (Windows) Fix ``onefile`` builds not having manifest embedded when icon is
disabled via ``--icon NONE``. (:issue:`[#5625](https://github.com/pyinstaller/pyinstaller/issues/5625)`)
* (Windows) Fix the frozen program crashing immediately with
``Failed to execute script pyiboot01_bootstrap`` message when built in
``noconsole`` mode and with import logging enabled (either via
``--debug imports`` or ``--debug all`` command-line switch). (:issue:`[#4213](https://github.com/pyinstaller/pyinstaller/issues/4213)`)
* ``CArchiveReader`` now performs full back-to-front file search for
``MAGIC``, allowing ``pyi-archive_viewer`` to open binaries with extra
appended data after embedded package (e.g., digital signature).
(:issue:`[#2372](https://github.com/pyinstaller/pyinstaller/issues/2372)`)
* Fix ``MERGE()`` to properly set references to nested resources with their
full shared-package-relative path instead of just basename. (:issue:`[#5606](https://github.com/pyinstaller/pyinstaller/issues/5606)`)
</tr></table>
</code></pre>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/e20e74c03768d432d48665b8ef1e02511b16e4be"><code>e20e74c</code></a> release 4.3</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/4a08839dfc98dc2f2e1662f608e26e3ab79cdca4"><code>4a08839</code></a> rebuild man pages</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/8090d562f92e08954950ca82dca1ad03b6bf89ca"><code>8090d56</code></a> Update readme version (for PyPI page)</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/4529c6597c951a4412530e6d199e635c25ff6328"><code>4529c65</code></a> Update credits</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/9bc8dd7c4e59139791834e92cf45de8158fb7347"><code>9bc8dd7</code></a> Prepare for release 4.3</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/aeff9cfe3916c84b8e347f74794931839ce2d9c5"><code>aeff9cf</code></a> add readthedocs config</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/419f349dad721a253b19d9c596e251818132d6ba"><code>419f349</code></a> Add hook utility for collecting setuptools entrypoints.</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/5c2dda98c1103cdcea6b3c157ff419d94139ea26"><code>5c2dda9</code></a> building: collect built-in extensions into lib-dynload sub-directory (<a href="https://github-redirect.dependabot.com/pyinstaller/pyinstaller/issues/5604">#5604</a>)</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/577e755b7db5e4bd156477e0848fb63e931c253f"><code>577e755</code></a> Analysis: ctypes: Guard against errors triggered by find_library(). (<a href="https://github-redirect.dependabot.com/pyinstaller/pyinstaller/issues/5734">#5734</a>)</li>
<li><a href="https://github.com/pyinstaller/pyinstaller/commit/745f03c7277cc2214d2e0ca6e2a9bd81b8c906fe"><code>745f03c</code></a> Bootloader: waf: Support cross-compile for FreeBSD. [skip-ci]</li>
<li>Additional commits viewable in <a href="https://github.com/pyinstaller/pyinstaller/compare/v4.2...v4.3">compare view</a></li>
</ul>
</details>
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Bumps pyinstaller from 4.2 to 4.3.
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