<a name="17.1.0-next.4"></a>

17.1.0-next.4 (2023-12-13)

compiler

| Commit | Description | | -- | -- | | | handle ambient types in input transform function (#51474) |

compiler-cli

| Commit | Description | | -- | -- | | | support type-checking for generic signal inputs (#53521) | | | generate less type checking code in for loops (#53515) |

core

| Commit | Description | | -- | -- | | | Avoid refreshing a host view twice when using transplanted views (#53021) | | | Multiple subscribers to ApplicationRef.isStable should all see values (#53541) | | | remove signal equality check short-circuit (#53446) | | | update feature usage marker (#53542) | | | avoid changes Observable creation on QueryList (#53498) | | | optimize memory allocation when reconcilling lists (#52245) |

migrations

| Commit | Description | | -- | -- | | | CF Migration - ensure bound ngIfElse cases ignore line breaks (#53435) | | | cf migration - undo changes when html fails to parse post migration (#53530) | | | CF migration only remove newlines of changed template content (#53508) | | | cf migration validate structure of ngswitch before migrating (#53530) | | | ensure we do not overwrite prior template replacements in migration (#53393) | | | fix cf migration import removal when errors occur (#53502) |

platform-browser

| Commit | Description | | -- | -- | | | Get correct base path when using "." as base href when serving from the file:// protocol. (#53547) |

router

| Commit | Description | | -- | -- | | | provide more actionable error message when route is not matched in production mode (#53523) |