[doc] updated CHANGELOG

CHANGELOG

@@ -36,6 +36,29 @@ Python binding
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+-----------------------------------------------------------------
+
+Codac release 0.1.4 (released `Mar 17, 2021 <https://github.com/codac-team/codac/releases/tag/v0.1.4>`_)
+========================================================================================================
+
+`Commits since previous release 0.1.3 <https://github.com/codac-team/codac/compare/v0.1.3...v0.1.4>`_
+
+Features added
+--------------
+
+* :commit:`bed28ab547a798abdc1ca1ecb80efcdfc3784c79`: added simple tube paving (1d)
+* :commit:`8a0f317c5ae589a058167672eb7d096103f0f92d`: added explored area
+* :commit:`6d486040d16d05d146b1a69d2f13caa44aa0357d`: new ``Tube::lb()``/``Tube::ub()`` methods 
+* :commit:`f50db66af3d6d01b6200cb45b63717fb89c01ed2`: new ``min``/``max`` functions on ``Tube`` 
+* :commit:`04bd085468a6ef78dae8d2b66697ce0f8bb4f11c`: added ``PENUMBRA`` value for ``Set``
+
+Bugs fixed
+----------
+
+* :commit:`d9dee9c17e4f6437e957ed7528251c9a0c933b16`: corrected bug in ``eval`` function
+* :commit:`0996ca9833582c5bc283d9399c143b76283a0cb7`: solving implementation of ``DelayTFunction`` (shared libraries)
+
+
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 Codac release 0.1.3 (released `Mar 1, 2021 <https://github.com/codac-team/codac/releases/tag/v0.1.3>`_)