emqx/changes/v5.5.1.en.md

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# 5.5.1
## Bug Fixes
- [#12471](https://github.com/emqx/emqx/pull/12471) Fixed an issue that data integration configurations failed to load correctly during upgrades from EMQX version 5.0.2 to newer releases.
- [#12598](https://github.com/emqx/emqx/pull/12598) Fixed an issue that users were unable to subscribe to or unsubscribe from shared topic filters via HTTP API.
The affected APIs include:
- `/clients/:clientid/subscribe`
- `/clients/:clientid/subscribe/bulk`
- `/clients/:clientid/unsubscribe`
- `/clients/:clientid/unsubscribe/bulk`
- [#12601](https://github.com/emqx/emqx/pull/12601) Fixed an issue where logs of the LDAP driver were not being captured. Now, all logs are recorded at the `info` level.
- [#12606](https://github.com/emqx/emqx/pull/12606) The Prometheus API experienced crashes when the specified SSL certificate file did not exist in the given path. Now, when an SSL certificate file is missing, the `emqx_cert_expiry_at` metric will report a value of 0, indicating the non-existence of the certificate.
- [#12620](https://github.com/emqx/emqx/pull/12620) Redacted sensitive information in HTTP headers to exclude authentication and authorization credentials from `debug` level logs in the HTTP Server connector, mitigating potential security risks.
- [#12632](https://github.com/emqx/emqx/pull/12632) Fixed an issue where the rule engine's SQL built-in function `date_to_unix_ts` produced incorrect results for dates starting from March 1st on leap years.