percona: deprecate innovation/lts release flavours

Percona upstream has decided not to create releases or each MySQL
innovation upstream release, but just for LTS releases.
https://www.percona.com/blog/no-mysql-9-x-innovation-releases-from-percona/

nixos/doc/manual/release-notes/rl-2411.section.md

@@ -193,7 +193,8 @@
 
 - `percona-server_8_4` and `mysql84` now have password authentication via the deprecated `mysql_native_password` disabled by default. This authentication plugin can be enabled via a CLI argument again, for detailed instructions and alternative authentication methods [see upstream documentation](https://dev.mysql.com/doc/refman/8.4/en/native-pluggable-authentication.html). The config file directive `default_authentication_plugin` has been removed.
 
-- `percona-server_lts` now points towards the new LTS release `percona-server_8_4`. The previous LTS continues to be supported and is available as `percona-server_8_0`. The same is true for the supporting `percona-xtrabackup` tooling.
+- Percona has decided not to follow the LTS/ Innovation release scheme of upstream MySQL and thus [will only create releases for MySQL LTS versions](https://www.percona.com/blog/no-mysql-9-x-innovation-releases-from-percona/). Hence, the package names `percona-server_lts`, `percona-server_innovation`, `percona-xtrabackup_lts` and `percona-xtrabackup_innovation` are deprecated.
+  - `percona-server` and `percona-server_lts` now point towards the new LTS release `percona-server_8_4`. The previous LTS continues to be supported and is available as `percona-server_8_0`. The same is true for the supporting `percona-xtrabackup` tooling.
 
 - `clang-tools_<version>` packages have been moved into `llvmPackages_<version>` (i.e. `clang-tools_18` is now `llvmPackages_18.clang-tools`).
   - For convenience, the top-level `clang-tools` attribute remains and is now bound to `llvmPackages.clang-tools`.

pkgs/servers/sql/percona-server/default.nix

@@ -14,4 +14,5 @@ pkgs: {
     # newer versions cause linking failures against `libabsl_spinlock_wait`
     protobuf = pkgs.protobuf_21;
   };
+  percona-server = pkgs.percona-server_8_4;
 }

pkgs/tools/backup/percona-xtrabackup/default.nix

@@ -3,4 +3,5 @@ pkgs: {
     boost = pkgs.boost177;
   };
   percona-xtrabackup_8_4 = pkgs.callPackage ./8_4.nix { };
+  percona-xtrabackup = pkgs.percona-xtrabackup_8_4;
 }

pkgs/top-level/aliases.nix

@@ -1212,6 +1212,10 @@ mapAliases {
   pcsxr = throw "pcsxr was removed as it has been abandoned for over a decade; please use DuckStation, Mednafen, or the RetroArch PCSX ReARMed core"; # Added 2024-08-20
   pdf2xml = throw "'pdf2xml' was removed: abandoned for years."; # Added 2023-10-22
   peach = asouldocs; # Added 2022-08-28
+  percona-server_innovation = lib.warn "Percona upstream has decided to skip all Innovation releases of MySQL and only release LTS versions." percona-server; # Added 2024-10-13
+  percona-server_lts = percona-server; # Added 2024-10-13
+  percona-xtrabackup_innovation = lib.warn "Percona upstream has decided to skip all Innovation releases of MySQL and only release LTS versions." percona-xtrabackup; # Added 2024-10-13
+  percona-xtrabackup_lts = percona-xtrabackup; # Added 2024-10-13
   pentablet-driver = xp-pen-g430-driver; # Added 2022-06-23
   perldevel = throw "'perldevel' has been dropped due to lack of updates in nixpkgs and lack of consistent support for devel versions by 'perl-cross' releases, use 'perl' instead";
   perldevelPackages = perldevel;

pkgs/top-level/all-packages.nix

@@ -11089,16 +11089,8 @@ with pkgs;
 
   perceptualdiff = callPackage ../tools/graphics/perceptualdiff { };
 
-  inherit (import ../servers/sql/percona-server pkgs) percona-server_8_0 percona-server_8_4;
+  inherit (import ../servers/sql/percona-server pkgs) percona-server_8_0 percona-server_8_4 percona-server;
-  percona-server_lts = percona-server_8_4;
+  inherit (import ../tools/backup/percona-xtrabackup pkgs) percona-xtrabackup_8_0 percona-xtrabackup_8_4 percona-xtrabackup;
-  # temporarily, latest LTS and Innovation release are equal
-  percona-server_innovation = percona-server_8_4;
-  percona-server = percona-server_lts;
-  inherit (import ../tools/backup/percona-xtrabackup pkgs) percona-xtrabackup_8_0 percona-xtrabackup_8_4;
-  percona-xtrabackup_lts = percona-xtrabackup_8_4;
-  # temporarily, latest LTS and Innovation release are equal
-  percona-xtrabackup_innovation = percona-xtrabackup_8_4;
-  percona-xtrabackup = percona-xtrabackup_lts;
 
   pick = callPackage ../tools/misc/pick { };