This version fixes an SQL error when deactivating newsletter subscribers and adds validation for the slider content element settings. In addition, the standard navigation template has been supplemented with aria-current="page". The most important improvement in this release is a change to insert tag handling, which particularly affects the {{date::Y}} (and other formats) insert tag and should significantly improve cache hits.
Changelog of the fixed issues in Contao 5.3.35:
- #8654 Allow version 2 of `guzzlehttp/promises` (bytehead)
- #8582 Change the newsletter recipient icon according to the start/stop date (fritzmg)
- #8622 Do not use load callbacks to set default values (fritzmg)
- #8627 Improve the root page error message (aschempp)
- #8358 Fix an undefined index error for `href` in the news menu template (Tastaturberuf)
- #8602 Rename the `attr()` function to `attrs()` (zoglo)
- #8609 Remove the `ClipboardManager` class constant (aschempp)
- #8648 Fix an SQL error when disabling subscribed members (fritzmg)
- #8600 Add `aria-current="page"` to the active navigation item (zoglo)
- #8597 Add the missing autowiring alias for `FileDownloadHelper` (fritzmg)
- #8592 Switch to `php-feed-io/feed-io` (fritzmg)
- #8579 Reset `$blnDetailsLoaded` in `PageModel` when setting a new row (fritzmg)
- #8572 Correctly check permissions to create a new clipboard (aschempp)
- #8032 Disable the `asFragment` option of the `#[AsInsertTag]` attribute (ausi)
- #8527 Add a PROCESS_CONSUMER_NAME env variable to all initiated subprocesses (richardhj)
- #8526 Add number format validation for slider settings (de-es)
- #8466 Use `::` to reference fragment methods (dmolineus)
- #8515 Use `Backend::addToUrl()` for `DataContainer::switchToEdit()` (aschempp)
About Contao 5.3 LTS
The first stable version of Contao 5.3 has been released on February 16, 2024, replacing Contao 4.13 as the long term support version. As an LTS version, 5.3 will be provided with bug fixes until February 14, 2027 and security-related updates until February 14, 2028. Contao 5.7 has been the next LTS version of Contao and will be released in February 2026, ensuring a stress-free transition.
