Merge #7087: chore: Update license year range to 2026

796a844 doc: Update license year range to 2026 (Konstantin Akimov)

Pull request description:

  ## What was done?

  Annual copyright bump. Prior PRs: #5890, #6546

  ## How Has This Been Tested?
  N/A

  ## Breaking Changes
  N/A

  ## Checklist:
  - [x] I have performed a self-review of my own code
  - [ ] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have added or updated relevant unit/integration/functional/e2e tests
  - [ ] I have made corresponding changes to the documentation
  - [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_

ACKs for top commit:
  UdjinM6:
    utACK 796a844

(should probably be `chore`, not `doc`)
  kwvg:
    utACK 796a844

Tree-SHA512: fd3406a7261f16b24c1d16b05591358dc7ed4d54e238b4a1f8d5cd3ab30888c84565361334774b7eaee0c3ae60d34d468e778ec29bf66cabe86dcf26ed341afc

Author: PastaPastaPasta

COPYING

@@ -1,8 +1,8 @@
 The MIT License (MIT)
 
-Copyright (c) 2009-2025 The Bitcoin Core developers
-Copyright (c) 2009-2025 Bitcoin Developers
-Copyright (c) 2014-2025 The Dash Core developers
+Copyright (c) 2009-2026 The Bitcoin Core developers
+Copyright (c) 2009-2026 Bitcoin Developers
+Copyright (c) 2014-2026 The Dash Core developers
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

configure.ac

@@ -4,7 +4,7 @@ define(_CLIENT_VERSION_MAJOR, 23)
 define(_CLIENT_VERSION_MINOR, 0)
 define(_CLIENT_VERSION_BUILD, 2)
 define(_CLIENT_VERSION_IS_RELEASE, false)
-define(_COPYRIGHT_YEAR, 2025)
+define(_COPYRIGHT_YEAR, 2026)
 define(_COPYRIGHT_HOLDERS,[The %s developers])
 define(_COPYRIGHT_HOLDERS_SUBSTITUTION,[[Dash Core]])
 AC_INIT([Dash Core],m4_join([.], _CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MINOR, _CLIENT_VERSION_BUILD),[https://github.com/dashpay/dash/issues],[dashcore],[https://dash.org/])

contrib/debian/copyright

@@ -4,8 +4,8 @@ Upstream-Contact: Dash Core Group, Inc https://www.dash.org/dcg/
 Source: https://github.com/dashpay/dash
 
 Files: *
-Copyright: 2009-2025, Bitcoin Core Developers,
-           2019-2025, Dash Core Developers
+Copyright: 2009-2026, Bitcoin Core Developers,
+           2019-2026, Dash Core Developers
 License: Expat
 Comment: The Bitcoin Core Developers encompasses all contributors to the
          project, listed in the release notes or the git log. The Dash Core