Update releases section (#4058)

Restructure releases section
Add 3.0.1 release
Add 2.8 EOS date: 31.12.2024
Update and move release calendar

Resolves #4055

Co-authored-by: Andrey Aksenov <[email protected]>

Author: p7nov

doc/enterprise/index.rst

@@ -64,7 +64,6 @@ Tarantool Enterprise Edition
 ..  toctree::
     :hidden:
 
-    changelog
     setup
     security
     audit

doc/release/2.11.0.rst

@@ -8,11 +8,11 @@ Releases on GitHub: :tarantool-release:`2.11.2`, :tarantool-release:`2.11.1`, :t
 The 2.11 release of Tarantool includes many new features and fixes.
 This document provides an overview of the most important features for the Enterprise and Community editions.
 
-2.11 is the long-term support (LTS) release with four years of maintenance.
-This means that you will continue to receive all the necessary security fixes and bug fixes throughout this period.
+2.11 is the long-term support (LTS) release with two years of maintenance.
+This means that you will receive all the necessary security fixes and bug fixes throughout this period, and
+be able to get technical support afterward.
 You can learn more about the Tarantool release policy from the :doc:`corresponding document </release/policy>`.
 
-
 ..  container:: table
 
     ..  list-table::

doc/release/3.0.0.rst

@@ -3,7 +3,7 @@ Tarantool 3.0
 
 Release date: December 26, 2023
 
-Releases on GitHub: :tarantool-release:`3.0.0`
+Releases on GitHub: :tarantool-release:`3.0.1`, :tarantool-release:`3.0.0`
 
 The 3.0 release of Tarantool introduces a new declarative approach for configuring a cluster,
 a new visual tool -- Tarantool Cluster Manager,

doc/release/_images/releases_calendar.svg

@@ -1,12 +1,12 @@
-..  _enterprise_changelog:
+..  _release-enterprise-changelog:
 
-Changelog
-=========
+Enterprise SDK changelog
+========================
 
 Versioning policy
 -----------------
 
-A Tarantool Enterprise SDK version consists of two parts:
+A :ref:`Tarantool Enterprise SDK <tarantool_enterprise>` version consists of two parts:
 
 ..  code-block:: text
 
@@ -523,4 +523,4 @@ r455
 ----
 
 -   Added :ref:`binary protocol encryption <enterprise-iproto-encryption>`.
--   Added :doc:`tuple field compression <tuple_compression>`.
+-   Added :ref:`tuple field compression <tuple_compression>`.