chore: use conventional commits standard in releasing.md. Remove temp…

…orary 5.3.0 release notes

RELEASING.md

@@ -25,7 +25,7 @@
 5. Commit change and push to main:
 
        git add . -u
-       git commit -m "MAINT: bump version to 5.0.0"
+       git commit -m "chore: bump version to 5.0.0"
        git push upstream main
 
 6. Tag the release:
@@ -54,48 +54,11 @@
 11. Commit change and push to main:
 
         git add . -u
-        git commit -m "MAINT: bump version to 5.1.0dev"
+        git commit -m "chore: bump version to 5.1.0dev"
         git push upstream main
 
 12. Double-check that a conda-forge pull request is generated from the updated
     pip package by the conda-forge bot (may take up to ~an hour):
     https://github.com/conda-forge/altair-feedstock/pulls
 
 13. Publish a new release in https://github.com/altair-viz/altair/releases/
-
-**Temporary until we have released Version 5.3.0**. Here some draft release notes.
-
-Version 5.3.0 (unreleased month day, year)
---------------------------
-- Update Vega-Lite from version 5.16.3 to version 5.17.0;
-  see `Vega-Lite Release Notes <https://github.com/vega/vega-lite/releases>`_.
-
-Enhancements
-~~~~~~~~~~~~
-- Add "jupyter" renderer which uses JupyterChart for rendering (#3283). See :ref:`renderers` for more information.
-- Add integration of VegaFusion and JupyterChart to support data transformations in the Python kernel for interactive charts (##3281). See :ref:`vegafusion-data-transformer` for more information.
-- Add ``embed_options`` argument to JupyterChart to allow customization of Vega Embed options (##3304)
-- Add offline support for JupyterChart and the new "jupyter" renderer. See :ref:`user-guide-jupyterchart-offline`
-  for more information.
-- Add ``"browser"`` renderer to support displaying Altair charts in an external web browser.
-  See :ref:`display-browser` for more information (#3379).
-- Docs: Add :ref:`section on dashboards <display_dashboards>` which have support for Altair (#3299)
-- Support restrictive FIPS-compliant environment (#3291)
-- Support opening charts in the Vega editor with ``chart.open_editor()`` (#3358)
-- Simplify type-hints to improve the readability of the function signature and docstring (#3307)
-- Support installation of all optional dependencies via ``python -m pip install altair[all]`` (#3354)
-    - ``conda install altair-all`` will be added in `this conda feedstock PR <https://github.com/conda-forge/altair-feedstock/pull/53>`_)
-- Add privacy friendly web-analytics for the documentation (#3350)
-- Additional gallery examples and documentation clarifications (#3233, #3266, #3276, #3282, #3298, #3299, #3323, #3334, #3324, #3340, #3350, #3353, #3357, #3362, #3363) 
-
-Bug Fixes
-~~~~~~~~~
-- Fix error when embed_options are None (#3376)
-- Fix type hints for libraries such as Polars where Altair uses the dataframe interchange protocol (#3297)
-- Fix anywidget deprecation warning (#3364)
-- Fix handling of Date32 columns in arrow tables and Polars DataFrames (#3377)
-
-Backward-Incompatible Changes
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-- Changed hash function from ``md5`` to a truncated ``sha256`` non-cryptograhic hash (#3291)
-- Updated ``chart.show()`` method to invoke the active renderer rather than depend on ``altair_saver`` (Which was never updated for use with Altair 5) (#3379).