[Bug 2003949] [NEW] Document ESM overlap period

[Dimitri John Ledkov]

Public bug reported:

[ Impact ]

 * End of standard support, End of ESM, New interim release, Religious
holidays currently coincide in the same week of April in odd years. In
practice, security updates continue to be published into security pocket
during May, with esm token strictly required from June. Document the
current status quo in the disto-info-data to avoid any panic or
confusion during odd years May month. Please ensure that ESM tokens are
enrolled on your LTS systems in May to ensure security updates are
received from June onwards.

[ Test Plan ]

 * ubuntu-distro-info --supported --date=2023-05-30 | grep bionic

 * ubuntu-distro-info --supported --date=2025-05-30 | grep focal

 * ubuntu-distro-info --supported --date=2027-05-30 | grep jammy

[ Where problems could occur ]

 * This is csv data update only.

[ Other Info ]

 * Anything else you think is useful to include
 * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board
 * and address these questions in advance

** Affects: distro-info-data (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: distro-info-data (Ubuntu Bionic)
     Importance: Undecided
     Assignee: Benjamin Drung (bdrung)
         Status: New

** Affects: distro-info-data (Ubuntu Focal)
     Importance: Undecided
         Status: New

** Affects: distro-info-data (Ubuntu Jammy)
     Importance: Undecided
         Status: New

** Affects: distro-info-data (Ubuntu Kinetic)
     Importance: Undecided
         Status: New

** Affects: distro-info-data (Ubuntu Lunar)
     Importance: Undecided
         Status: New

** Also affects: distro-info-data (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: distro-info-data (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Also affects: distro-info-data (Ubuntu Kinetic)
   Importance: Undecided
       Status: New

** Also affects: distro-info-data (Ubuntu Bionic)
   Importance: Undecided
       Status: New

** Also affects: distro-info-data (Ubuntu Lunar)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2003949

Title:
  Document ESM overlap period

Status in distro-info-data package in Ubuntu:
  New
Status in distro-info-data source package in Bionic:
  New
Status in distro-info-data source package in Focal:
  New
Status in distro-info-data source package in Jammy:
  New
Status in distro-info-data source package in Kinetic:
  New
Status in distro-info-data source package in Lunar:
  New

Bug description:
  [ Impact ]

   * End of standard support, End of ESM, New interim release, Religious
  holidays currently coincide in the same week of April in odd years. In
  practice, security updates continue to be published into security
  pocket during May, with esm token strictly required from June.
  Document the current status quo in the disto-info-data to avoid any
  panic or confusion during odd years May month. Please ensure that ESM
  tokens are enrolled on your LTS systems in May to ensure security
  updates are received from June onwards.

  [ Test Plan ]

   * ubuntu-distro-info --supported --date=2023-05-30 | grep bionic

   * ubuntu-distro-info --supported --date=2025-05-30 | grep focal

   * ubuntu-distro-info --supported --date=2027-05-30 | grep jammy

  [ Where problems could occur ]

   * This is csv data update only.

  [ Other Info ]

   * Anything else you think is useful to include
   * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board
   * and address these questions in advance

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