Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires typo3/cms-core ~11.5.42 || ~12.4.25 || ~13.4.3, found typo3/cms-core[v12.4.25, v12.4.26, v13.4.3, v13.4.4] but it conflicts with your temporary update constraint (typo3/cms-core:^11.5). Problem 2 - Root composer.json requires typo3/cms-backend ~11.5.42 || ~12.4.25 || ~13.4.3 -> satisfiable by typo3/cms-backend[v12.4.25, v12.4.26, v13.4.3, v13.4.4]. - typo3/cms-backend v12.4.25 requires typo3/cms-core 12.4.25 -> found typo3/cms-core[v12.4.25] but it conflicts with your temporary update constraint (typo3/cms-core:^11.5). - typo3/cms-backend v12.4.26 requires typo3/cms-core 12.4.26 -> found typo3/cms-core[v12.4.26] but it conflicts with your temporary update constraint (typo3/cms-core:^11.5). - typo3/cms-backend v13.4.3 requires typo3/cms-core 13.4.3 -> found typo3/cms-core[v13.4.3] but it conflicts with your temporary update constraint (typo3/cms-core:^11.5). - typo3/cms-backend v13.4.4 requires typo3/cms-core 13.4.4 -> found typo3/cms-core[v13.4.4] but it conflicts with your temporary update constraint (typo3/cms-core:^11.5). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.