feat: new FindPython support (#2370)
* feat: FindPython support
* refactor: rename to PYBIND11_FINDPYTHON
* docs: Caps fixes
* feat: NOPYTHON mode
* test: check simple call
* docs: add changelog/upgrade guide
* feat: Support Python3 and Python2
* refactor: Use targets in tests
* fix: support CMake 3.4+
* feat: classic search also finds virtual environments
* docs: some updates from @wjakob's review
* fix: wrong name for QUIET mode variable, reported by @skoslowski
* refactor: cleaner output messaging
* fix: support debug Python's in FindPython mode too
* fixup! refactor: cleaner output messaging
* fix: missing pybind11_FOUND and pybind11_INCLUDE_DIR restored to subdir mode
* fix: nicer reporting of Python / PyPy
* fix: out-of-order variable fix
* docs: minor last-minute cleanup
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 2def2b0..fbb3667 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -6,6 +6,39 @@
Starting with version 1.8.0, pybind11 releases use a `semantic versioning
<http://semver.org>`_ policy.
+v2.6.0 (IN PROGRESS)
+--------------------
+
+See :ref:`upgrade-guide-2.6` for help upgrading to the new version.
+
+* Minimum CMake required increased to 3.4.
+ `#2338 <https://github.com/pybind/pybind11/pull/2338>`_ and
+ `#2370 <https://github.com/pybind/pybind11/pull/2370>`_
+
+ * Full integration with CMake’s C++ standard system replaces
+ ``PYBIND11_CPP_STANDARD``.
+
+ * Generated config file is now portable to different Python/compiler/CMake
+ versions.
+
+ * Virtual environments prioritized if ``PYTHON_EXECUTABLE`` is not set
+ (``venv``, ``virtualenv``, and ``conda``) (similar to the new FindPython
+ mode).
+
+ * Other CMake features now natively supported, like
+ ``CMAKE_INTERPROCEDURAL_OPTIMIZATION``, ``set(CMAKE_CXX_VISIBILITY_PRESET
+ hidden)``.
+
+* Optional :ref:`find-python-mode` and :ref:`nopython-mode` with CMake.
+ `#2370 <https://github.com/pybind/pybind11/pull/2370>`_
+
+* Uninstall target added.
+ `#2265 <https://github.com/pybind/pybind11/pull/2265>`_ and
+ `#2346 <https://github.com/pybind/pybind11/pull/2346>`_
+
+
+
+
v2.5.0 (Mar 31, 2020)
-----------------------------------------------------