[TASK] Allow typo3fluid/fluid:^3 in composer manifests

Pure metadata change - allows site admin to create a new
site which uses Fluid 3.0.

A separate change will come in TYPO3 v9.

Releases: master
Resolves: #90285
Change-Id: I5de150a4a8b7d99b12a50b2b5c9eb36462121f06
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63132
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>

composer.json

@@ -74,7 +74,7 @@
 		"typo3/cms-cli": "^2.0",
 		"typo3/cms-composer-installers": "^2.0",
 		"typo3/phar-stream-wrapper": "^3.1.3",
-		"typo3fluid/fluid": "^2.6.8"
+		"typo3fluid/fluid": "^2.6.8 || ^3"
 	},
 	"require-dev": {
 		"codeception/codeception": "^4.0",

typo3/sysext/adminpanel/composer.json

@@ -23,7 +23,7 @@
 		"typo3/cms-core": "10.4.*@dev",
 		"typo3/cms-fluid": "10.4.*@dev",
 		"typo3/cms-frontend": "10.4.*@dev",
-		"typo3fluid/fluid": "^2.6.8",
+		"typo3fluid/fluid": "^2.6.8 || ^3",
 		"psr/http-message": "^1.0",
 		"psr/http-server-handler": "^1.0",
 		"psr/http-server-middleware": "^1.0",

typo3/sysext/core/Documentation/Changelog/master/Important-90285-FreshInstallsWithoutConstraintForTypo3fluidfluidWillGetVersion30.rst

@@ -0,0 +1,30 @@
+.. include:: ../../Includes.txt
+
+================================================================================================
+Important: #90285 - Fresh installs without constraint for typo3fluid/fluid will get version 3.0+
+================================================================================================
+
+See :issue:`90285`
+
+Description
+===========
+
+Projects which have no dependencies that add a constraint on the maximum allowed version of Fluid
+will in the future download and install ``typo3fluid/fluid:^3``.
+
+The TYPO3 core is fully compatible with both major versions of Fluid and lets you choose between
+version ``2.6+`` or ``3.0+`` by constraining your project dependencies. However, some projects based
+on TYPO3 may contain Fluid templates or dependencies which are not compatible with Fluid 3.0, yet
+neglect to declare a maximum version constraint for Fluid - since until the release of version 3.0,
+the only/highest major version was 2.6 and ``composer install`` would therefore always select version
+``^2.6`` as it was the only option.
+
+If your project has no maximum version constraint and contains Fluid templates which are incompatible
+with version ``3.0+`` you will therefore need to take one of the following two actions:
+
+* Either declare a maximum version constraint for ``typo3fluid/fluid:^2`` in the root project
+  ``composer.json`` or any dependency of the project that you control, and perform ``composer update``.
+* Or execute ``composer req typo3fluid/fluid:^2`` in the project directory to make the project itself
+  declare the maximum version constraint.
+
+.. index:: Fluid, ext:fluid

typo3/sysext/core/composer.json

@@ -58,7 +58,7 @@
 		"typo3/cms-cli": "^2.0",
 		"typo3/cms-composer-installers": "^2.0",
 		"typo3/phar-stream-wrapper": "^3.1.3",
-		"typo3fluid/fluid": "^2.6.8"
+		"typo3fluid/fluid": "^2.6.8 || ^3"
 	},
 	"require-dev": {
 		"codeception/codeception": "^4.0",

typo3/sysext/fluid/composer.json

@@ -22,7 +22,7 @@
 		"symfony/dependency-injection": "^4.4 || ^5.0",
 		"typo3/cms-core": "10.4.*@dev",
 		"typo3/cms-extbase": "10.4.*@dev",
-		"typo3fluid/fluid": "^2.6.8"
+		"typo3fluid/fluid": "^2.6.8 || ^3"
 	},
 	"conflict": {
 		"typo3/cms": "*"

typo3/sysext/redirects/composer.json

@@ -24,7 +24,7 @@
 		"psr/log": "^1.0",
 		"typo3/cms-backend": "10.4.*@dev",
 		"typo3/cms-core": "10.4.*@dev",
-		"typo3fluid/fluid": "^2.6.8"
+		"typo3fluid/fluid": "^2.6.8 || ^3"
 	},
 	"conflict": {
 		"typo3/cms": "*"