Add releases lifetime table and diagram (#2686)

Fixes #1025

Author: art-dr

doc/release/_images/releases_calendar.svg

@@ -348,3 +348,140 @@ Then it can proceed with a version sequence like the following:
 Eventually, the support stage stops and the release series comes to the
 end of life (EOL) stage.
 No new versions are released since then.
+
+..  _release-table:
+
+Currently supported versions
+----------------------------
+
+Below is the releases lifetime table listing all Tarantool versions
+starting from 1.10.x up to the current latest versions.
+Each link leads to the release notes page of the corresponding version.
+End of series support means the release series will no longer receive any patches, updates, or feature improvements.
+
+..  container:: table
+
+    ..  list-table::
+
+        *   -   Version
+            -   Release date
+            -   End of series support
+
+        *   -   Series 2
+            -   Not planned yet
+            -   Not planned yet
+
+        *   -   `2.8.3 <https://github.com/tarantool/tarantool/releases/tag/2.8.3>`_
+            -   December 22, 2021
+            -   Not planned yet
+
+        *   -   :doc:`2.8.2 </release/2021-08-releases>`
+            -   August 19, 2021
+            -   Not planned yet
+
+        *   -   :doc:`2.7.3 </release/2021-08-releases>`
+            -   August 19, 2021
+            -   August 19, 2021
+
+        *   -   :doc:`2.7.2 </release/2.7.2>`
+            -   April 21, 2021
+            -   August 19, 2021
+
+        *   -   :doc:`2.6.3 </release/2.6.3>`
+            -   April 21, 2021
+            -   April 21, 2021
+
+        *   -   :doc:`2.6.2 </release/2.6.2>`
+            -   December 30, 2020
+            -   April 21, 2021
+
+        *   -   :doc:`2.5.3 </release/2.5.3>`
+            -   December 30, 2020
+            -   December 30, 2020
+
+        *   -   :doc:`2.5.2 </release/2.5.2>`
+            -   October 22, 2020
+            -   December 30, 2020
+
+        *   -   :doc:`2.4.3 </release/2.4.3>`
+            -   October 22, 2020
+            -   October 22, 2020
+
+        *   -   :doc:`2.4.2 </release/2.4.2>`
+            -   July 17, 2020
+            -   October 22, 2020
+
+        *   -   :doc:`2.3.3 </release/2.3.3>`
+            -   July 17, 2020
+            -   July 17, 2020
+
+        *   -   :doc:`2.3.2 </release/2.3.2>`
+            -   April 20, 2020
+            -   July 17, 2020
+
+        *   -   :doc:`2.2.3 </release/2.2.3>`
+            -   April 20, 2020
+            -   April 20, 2020
+
+        *   -   :doc:`2.2.2 </release/2.2.2>`
+            -   December 31, 2019
+            -   April 20, 2020
+
+        *   -   `1.10.12 LTS <https://github.com/tarantool/tarantool/releases/tag/1.10.12>`_
+            -   December 22, 2021
+            -   Not planned yet
+
+        *   -   :doc:`1.10.11 LTS </release/2021-08-releases>`
+            -   August 19, 2021
+            -   Not planned yet
+
+        *   -   :doc:`1.10.10 LTS </release/1.10.10>`
+            -   April 24, 2021
+            -   Not planned yet
+
+        *   -   :doc:`1.10.9 LTS </release/1.10.9>`
+            -   December 30, 2020
+            -   Not planned yet
+
+        *   -   :doc:`1.10.8 LTS </release/1.10.8>`
+            -   October 22, 2020
+            -   Not planned yet
+
+        *   -   :doc:`1.10.7 LTS </release/1.10.7>`
+            -   July 17, 2020
+            -   Not planned yet
+
+        *   -   :doc:`1.10.6 LTS </release/1.10.6>`
+            -   April 20, 2020
+            -   Not planned yet
+
+        *   -   :doc:`1.10.5 LTS </release/1.10.5>`
+            -   January 14, 2020
+            -   Not planned yet
+
+        *   -   :ref:`1.10.4 LTS <whats_new_1104>`
+            -   September 26, 2019
+            -   Not planned yet
+
+        *   -   :ref:`1.10.3 LTS <whats_new_1103>`
+            -   April 1, 2019
+            -   Not planned yet
+
+        *   -   :ref:`1.10.2 LTS <whats_new_1102>`
+            -   October 13, 2018
+            -   Not planned yet
+
+
+..  _release-calendar:
+
+Releases calendar
+-----------------
+
+Currently supported versions visualised as a calendar:
+
+.. ifconfig:: builder not in ('latex', )
+
+    .. image:: _images/releases_calendar.svg
+        :align: left
+        :alt: releases_calendar.svg
+