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chore: split change logs

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Zaiming (Stone) Shi 2022-10-20 18:45:17 +02:00
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# 5.0.9
## Enhancements
* Add `cert_common_name` and `cert_subject` placeholder support for authz_http and authz_mongo.[#8973](https://github.com/emqx/emqx/pull/8973)
* Use milliseconds internally in emqx_delayed to store the publish time, improving precision.[#9060](https://github.com/emqx/emqx/pull/9060)
* More rigorous checking of flapping to improve stability of the system. [#9136](https://github.com/emqx/emqx/pull/9136)
* No message(s) echo for the message publish APIs [#9155](https://github.com/emqx/emqx/pull/9155)
Prior to this fix, the message publish APIs (`api/v5/publish` and `api/v5/publish/bulk`) echos the message back to the client in HTTP body.
This change fixed it to only send back the message ID.
## Bug fixes
* Check ACLs for last will testament topic before publishing the message. [#8930](https://github.com/emqx/emqx/pull/8930)
* Fix GET /listeners API crash When some nodes still in initial configuration. [#9002](https://github.com/emqx/emqx/pull/9002)
* Fix empty variable interpolation in authentication and authorization. Placeholders for undefined variables are rendered now as empty strings and do not cause errors anymore. [#8963](https://github.com/emqx/emqx/pull/8963)
* Fix the latency statistics error of the slow subscription module when `stats_type` is `internal` or `response`. [#8986](https://github.com/emqx/emqx/pull/8986)
* Redispatch shared subscription messages. [#9104](https://github.com/emqx/emqx/pull/9104)
# 5.0.8
## Bug fixes
* Fix exhook `client.authorize` never being execauted. [#8780](https://github.com/emqx/emqx/pull/8780)
* Fix JWT plugin don't support non-integer timestamp claims. [#8867](https://github.com/emqx/emqx/pull/8867)
* Avoid publishing will message when client fails to auhtenticate. [#8887](https://github.com/emqx/emqx/pull/8887)
* Speed up dispatching of shared subscription messages in a cluster [#8893](https://github.com/emqx/emqx/pull/8893)
* Fix the extra / prefix when CoAP gateway parsing client topics. [#8658](https://github.com/emqx/emqx/pull/8658)
* Speed up updating the configuration, When some nodes in the cluster are down. [#8857](https://github.com/emqx/emqx/pull/8857)
* Fix delayed publish inaccurate caused by os time change. [#8926](https://github.com/emqx/emqx/pull/8926)
* Fix that EMQX can't start when the retainer is disabled [#8911](https://github.com/emqx/emqx/pull/8911)
* Fix that redis authn will deny the unknown users [#8934](https://github.com/emqx/emqx/pull/8934)
* Fix ExProto UDP client keepalive checking error.
This causes the clients to not expire as long as a new UDP packet arrives [#8866](https://github.com/emqx/emqx/pull/8866)
* Fix that MQTT Bridge message payload could be empty string. [#8949](https://github.com/emqx/emqx/pull/8949)
## Enhancements
* Print a warning message when boot with the default (insecure) Erlang cookie. [#8905](https://github.com/emqx/emqx/pull/8905)
* Change the `/gateway` API path to plural form. [#8823](https://github.com/emqx/emqx/pull/8823)
* Don't allow updating config items when they already exist in `local-override.conf`. [#8851](https://github.com/emqx/emqx/pull/8851)
* Remove `node.etc_dir` from emqx.conf, because it is never used.
Also allow user to customize the logging directory [#8892](https://github.com/emqx/emqx/pull/8892)
* Added a new API `POST /listeners` for creating listener. [#8876](https://github.com/emqx/emqx/pull/8876)
* Close ExProto client process immediately if it's keepalive timeouted. [#8866](https://github.com/emqx/emqx/pull/8866)
* Upgrade grpc-erl driver to 0.6.7 to support batch operation in sending stream. [#8866](https://github.com/emqx/emqx/pull/8866)
# 5.0.7
## Bug fixes
* Remove `will_msg` (not used) field from the client API. [#8721](https://github.com/emqx/emqx/pull/8721)
* Fix `$queue` topic name error in management API return. [#8728](https://github.com/emqx/emqx/pull/8728)
* Fix race condition which may cause `client.connected` and `client.disconnected` out of order. [#8625](https://github.com/emqx/emqx/pull/8625)
* Fix quic listener default idle timeout's type. [#8826](https://github.com/emqx/emqx/pull/8826)
## Enhancements
* Do not auto-populate default SSL cipher suites, so that the configs are less bloated. [#8769](https://github.com/emqx/emqx/pull/8769)
# 5.0.6
## Bug fixes
* Upgrade Dashboard version to fix an issue where the node status was not displayed correctly. [#8771](https://github.com/emqx/emqx/pull/8771)
# 5.0.5
## Bug fixes
* Allow changing the license type from key to file (and vice-versa). [#8598](https://github.com/emqx/emqx/pull/8598)
* Add back http connector config keys `max_retries` `retry_interval` as deprecated fields [#8672](https://github.com/emqx/emqx/issues/8672)
This caused upgrade failure in 5.0.4, because it would fail to boot on configs created from older version.
## Enhancements
* Add `bootstrap_users_file` configuration to add default Dashboard username list, which is only added when EMQX is first started.
* The license is now copied to all nodes in the cluster when it's reloaded. [#8598](https://github.com/emqx/emqx/pull/8598)
* Added a HTTP API to manage licenses. [#8610](https://github.com/emqx/emqx/pull/8610)
* Updated `/nodes` API node_status from `Running/Stopped` to `running/stopped`. [#8642](https://github.com/emqx/emqx/pull/8642)
* Improve handling of placeholder interpolation errors [#8635](https://github.com/emqx/emqx/pull/8635)
* Better logging on unknown object IDs. [#8670](https://github.com/emqx/emqx/pull/8670)
* The bind option support `:1883` style. [#8758](https://github.com/emqx/emqx/pull/8758)
# 5.0.4
## Bug fixes
* The `data/configs/cluster-override.conf` is cleared to 0KB if `hocon_pp:do/2` failed [commits/71f64251](https://github.com/emqx/emqx/pull/8443/commits/71f642518a683cc91a32fd542aafaac6ef915720)
* Improve the health_check for webhooks.
Prior to this change, the webhook only checks the connectivity of the TCP port using `gen_tcp:connect/2`, so
if it's a HTTPs server, we didn't check if TLS handshake was successful.
[commits/6b45d2ea](https://github.com/emqx/emqx/commit/6b45d2ea9fde6d3b4a5b007f7a8c5a1c573d141e)
* The `created_at` field of rules is missing after emqx restarts. [commits/5fc09e6b](https://github.com/emqx/emqx/commit/5fc09e6b950c340243d7be627a0ce1700691221c)
* The rule engine's jq function now works even when the path to the EMQX install dir contains spaces [jq#35](https://github.com/emqx/jq/pull/35) [#8455](https://github.com/emqx/emqx/pull/8455)
* Avoid applying any ACL checks on superusers [#8452](https://github.com/emqx/emqx/pull/8452)
* Fix statistics related system topic name error
* Fix AuthN JWKS SSL schema. Using schema in `emqx_schema`. [#8458](https://github.com/emqx/emqx/pull/8458)
* `sentinel` field should be required when AuthN/AuthZ Redis using sentinel mode. [#8458](https://github.com/emqx/emqx/pull/8458)
* Fix bad swagger format. [#8517](https://github.com/emqx/emqx/pull/8517)
* Fix `chars_limit` is not working when `formatter` is `json`. [#8518](http://github.com/emqx/emqx/pull/8518)
* Ensuring that exhook dispatches the client events are sequential. [#8530](https://github.com/emqx/emqx/pull/8530)
* Avoid using RocksDB backend for persistent sessions when such backend is unavailable. [#8528](https://github.com/emqx/emqx/pull/8528)
* Fix AuthN `cert_subject` and `cert_common_name` placeholder rendering failure. [#8531](https://github.com/emqx/emqx/pull/8531)
* Support listen on an IPv6 address, e.g: [::1]:1883 or ::1:1883. [#8547](https://github.com/emqx/emqx/pull/8547)
* GET '/rules' support for pagination and fuzzy search. [#8472](https://github.com/emqx/emqx/pull/8472)
**‼️ Note** : The previous API only returns array: `[RuleObj1,RuleObj2]`, after updating, it will become
`{"data": [RuleObj1,RuleObj2], "meta":{"count":2, "limit":100, "page":1}`,
which will carry the paging meta information.
* Fix the issue that webhook leaks TCP connections. [ehttpc#34](https://github.com/emqx/ehttpc/pull/34), [#8580](https://github.com/emqx/emqx/pull/8580)
## Enhancements
* Improve the dashboard listener startup log, the listener name is no longer spliced with port information,
and the colon(:) is no longer displayed when IP is not specified. [#8480](https://github.com/emqx/emqx/pull/8480)
* Remove `/configs/listeners` API, use `/listeners/` instead. [#8485](https://github.com/emqx/emqx/pull/8485)
* Optimize performance of builtin database operations in processes with long message queue [#8439](https://github.com/emqx/emqx/pull/8439)
* Improve authentication tracing. [#8554](https://github.com/emqx/emqx/pull/8554)
* Standardize the '/listeners' and `/gateway/<name>/listeners` API fields.
It will introduce some incompatible updates, see [#8571](https://github.com/emqx/emqx/pull/8571)
* Add option to perform GC on connection process after TLS/SSL handshake is performed. [#8637](https://github.com/emqx/emqx/pull/8637)
# 5.0.3
## Bug fixes
* Websocket listener failed to read headers `X-Forwarded-For` and `X-Forwarded-Port` [#8415](https://github.com/emqx/emqx/pull/8415)
* Deleted `cluster_singleton` from MQTT bridge config document. This config is no longer applicable in 5.0 [#8407](https://github.com/emqx/emqx/pull/8407)
* Fix `emqx/emqx:latest` docker image publish to use the Erlang flavor, but not Elixir flavor [#8414](https://github.com/emqx/emqx/pull/8414)
* Changed the `exp` field in JWT auth to be optional rather than required to fix backwards compatability with 4.X releases. [#8425](https://github.com/emqx/emqx/pull/8425)
## Enhancements
* Improve the speed of dashboard's HTTP API routing rule generation, which sometimes causes timeout [#8438](https://github.com/emqx/emqx/pull/8438)
# 5.0.2
Announcement: EMQX team has decided to stop supporting relup for opensource edition.
Going forward, it will be an enterprise-only feature.
Main reason: relup requires carefully crafted upgrade instructions from ALL previous versions.
For example, 4.3 is now at 4.3.16, we have `4.3.0->4.3.16`, `4.3.1->4.3.16`, ... 16 such upgrade paths in total to maintain.
This had been the biggest obstacle for EMQX team to act agile enough in delivering enhancements and fixes.
## Enhancements
## Bug fixes
* Fixed a typo in `bin/emqx` which affects MacOs release when trying to enable Erlang distribution over TLS [#8398](https://github.com/emqx/emqx/pull/8398)
* Restricted shell was accidentally disabled in 5.0.1, it has been added back. [#8396](https://github.com/emqx/emqx/pull/8396)
# 5.0.1
5.0.1 is built on [Erlang/OTP 24.2.1-1](https://github.com/emqx/otp/tree/OTP-24.2.1-1). Same as 5.0.0.
5.0.0 (like 4.4.x) had Erlang/OTP version number in the package name.
This is because we wanted to release different flavor packages (on different Elixir/Erlang/OTP platforms).
However the long package names also causes confusion, as users may not know which to choose if there were more than
one presented at the same time.
Going forward, (starting from 5.0.1), packages will be released in both default (short) and flavored (long) package names.
For example: `emqx-5.0.1-otp24.2.1-1-ubuntu20.04-amd64.tar.gz`,
but only the default one is presented to the users: `emqx-5.0.1-ubuntu20.04-amd64.tar.gz`.
In case anyone wants to try a different flavor package, it can be downlowded from the public s3 bucket,
for example:
https://s3.us-west-2.amazonaws.com/packages.emqx/emqx-ce/v5.0.1/emqx-5.0.1-otp24.2.1-1-ubuntu20.04-arm64.tar.gz
Exceptions:
* Windows package is always presented with short name (currently on Erlang/OTP 24.2.1).
* Elixir package name is flavored with both Elixir and Erlang/OTP version numbers,
for example: `emqx-5.0.1-elixir1.13.4-otp24.2.1-1-ubuntu20.04-amd64.tar.gz`
## Enhancements
* Removed management API auth for prometheus scraping endpoint /api/v5/prometheus/stats [#8299](https://github.com/emqx/emqx/pull/8299)
* Added more TCP options for exhook (gRPC) connections. [#8317](https://github.com/emqx/emqx/pull/8317)
* HTTP Servers used for authentication and authorization will now indicate the result via the response body. [#8374](https://github.com/emqx/emqx/pull/8374) [#8377](https://github.com/emqx/emqx/pull/8377)
* Bulk subscribe/unsubscribe APIs [#8356](https://github.com/emqx/emqx/pull/8356)
* Added exclusive subscription [#8315](https://github.com/emqx/emqx/pull/8315)
* Provide authentication counter metrics [#8352](https://github.com/emqx/emqx/pull/8352) [#8375](https://github.com/emqx/emqx/pull/8375)
* Do not allow admin user self-deletion [#8286](https://github.com/emqx/emqx/pull/8286)
* After restart, ensure to copy `cluster-override.conf` from the clustered node which has the greatest `tnxid`. [#8333](https://github.com/emqx/emqx/pull/8333)
## Bug fixes
* A bug fix ported from 4.x: allow deleting subscriptions from `client.subscribe` hookpoint callback result. [#8304](https://github.com/emqx/emqx/pull/8304) [#8347](https://github.com/emqx/emqx/pull/8377)
* Fixed Erlang distribution over TLS [#8309](https://github.com/emqx/emqx/pull/8309)
* Made possible to override authentication configs from environment variables [#8323](https://github.com/emqx/emqx/pull/8309)
* Made authentication passwords in Mnesia database backward compatible to 4.x, so we can support data migration better. [#8351](https://github.com/emqx/emqx/pull/8351)
* Fix plugins upload for rpm/deb installations [#8379](https://github.com/emqx/emqx/pull/8379)
* Sync data/authz/acl.conf and data/certs from clustered nodes after a new node joins the cluster [#8369](https://github.com/emqx/emqx/pull/8369)
* Ensure auto-retry of failed resources [#8371](https://github.com/emqx/emqx/pull/8371)
* Fix the issue that the count of `packets.connack.auth_error` is inaccurate when the client uses a protocol version below MQTT v5.0 to access [#8178](https://github.com/emqx/emqx/pull/8178)
## Others
* Rate limiter interface is hidden so far, it's subject to a UX redesign.
* QUIC library upgraded to 0.0.14.
* Now the default packages will be released withot otp version number in the package name.
* Renamed config exmpale file name in `etc` dir.

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# v5.0.1
5.0.1 is built on [Erlang/OTP 24.2.1-1](https://github.com/emqx/otp/tree/OTP-24.2.1-1). Same as 5.0.0.
5.0.0 (like 4.4.x) had Erlang/OTP version number in the package name.
This is because we wanted to release different flavor packages (on different Elixir/Erlang/OTP platforms).
However the long package names also causes confusion, as users may not know which to choose if there were more than
one presented at the same time.
Going forward, (starting from 5.0.1), packages will be released in both default (short) and flavored (long) package names.
For example: `emqx-5.0.1-otp24.2.1-1-ubuntu20.04-amd64.tar.gz`,
but only the default one is presented to the users: `emqx-5.0.1-ubuntu20.04-amd64.tar.gz`.
In case anyone wants to try a different flavor package, it can be downlowded from the public s3 bucket,
for example:
https://s3.us-west-2.amazonaws.com/packages.emqx/emqx-ce/v5.0.1/emqx-5.0.1-otp24.2.1-1-ubuntu20.04-arm64.tar.gz
Exceptions:
* Windows package is always presented with short name (currently on Erlang/OTP 24.2.1).
* Elixir package name is flavored with both Elixir and Erlang/OTP version numbers,
for example: `emqx-5.0.1-elixir1.13.4-otp24.2.1-1-ubuntu20.04-amd64.tar.gz`
## Enhancements
* Removed management API auth for prometheus scraping endpoint /api/v5/prometheus/stats [#8299](https://github.com/emqx/emqx/pull/8299)
* Added more TCP options for exhook (gRPC) connections. [#8317](https://github.com/emqx/emqx/pull/8317)
* HTTP Servers used for authentication and authorization will now indicate the result via the response body. [#8374](https://github.com/emqx/emqx/pull/8374) [#8377](https://github.com/emqx/emqx/pull/8377)
* Bulk subscribe/unsubscribe APIs [#8356](https://github.com/emqx/emqx/pull/8356)
* Added exclusive subscription [#8315](https://github.com/emqx/emqx/pull/8315)
* Provide authentication counter metrics [#8352](https://github.com/emqx/emqx/pull/8352) [#8375](https://github.com/emqx/emqx/pull/8375)
* Do not allow admin user self-deletion [#8286](https://github.com/emqx/emqx/pull/8286)
* After restart, ensure to copy `cluster-override.conf` from the clustered node which has the greatest `tnxid`. [#8333](https://github.com/emqx/emqx/pull/8333)
## Bug fixes
* A bug fix ported from 4.x: allow deleting subscriptions from `client.subscribe` hookpoint callback result. [#8304](https://github.com/emqx/emqx/pull/8304) [#8347](https://github.com/emqx/emqx/pull/8377)
* Fixed Erlang distribution over TLS [#8309](https://github.com/emqx/emqx/pull/8309)
* Made possible to override authentication configs from environment variables [#8323](https://github.com/emqx/emqx/pull/8309)
* Made authentication passwords in Mnesia database backward compatible to 4.x, so we can support data migration better. [#8351](https://github.com/emqx/emqx/pull/8351)
* Fix plugins upload for rpm/deb installations [#8379](https://github.com/emqx/emqx/pull/8379)
* Sync data/authz/acl.conf and data/certs from clustered nodes after a new node joins the cluster [#8369](https://github.com/emqx/emqx/pull/8369)
* Ensure auto-retry of failed resources [#8371](https://github.com/emqx/emqx/pull/8371)
* Fix the issue that the count of `packets.connack.auth_error` is inaccurate when the client uses a protocol version below MQTT v5.0 to access [#8178](https://github.com/emqx/emqx/pull/8178)
## Others
* Rate limiter interface is hidden so far, it's subject to a UX redesign.
* QUIC library upgraded to 0.0.14.
* Now the default packages will be released withot otp version number in the package name.
* Renamed config exmpale file name in `etc` dir.

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# v5.0.2
Announcement: EMQX team has decided to stop supporting relup for opensource edition.
Going forward, it will be an enterprise-only feature.
Main reason: relup requires carefully crafted upgrade instructions from ALL previous versions.
For example, 4.3 is now at 4.3.16, we have `4.3.0->4.3.16`, `4.3.1->4.3.16`, ... 16 such upgrade paths in total to maintain.
This had been the biggest obstacle for EMQX team to act agile enough in delivering enhancements and fixes.
## Enhancements
## Bug fixes
* Fixed a typo in `bin/emqx` which affects MacOs release when trying to enable Erlang distribution over TLS [#8398](https://github.com/emqx/emqx/pull/8398)
* Restricted shell was accidentally disabled in 5.0.1, it has been added back. [#8396](https://github.com/emqx/emqx/pull/8396)

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# v5.0.3
## Bug fixes
* Websocket listener failed to read headers `X-Forwarded-For` and `X-Forwarded-Port` [#8415](https://github.com/emqx/emqx/pull/8415)
* Deleted `cluster_singleton` from MQTT bridge config document. This config is no longer applicable in 5.0 [#8407](https://github.com/emqx/emqx/pull/8407)
* Fix `emqx/emqx:latest` docker image publish to use the Erlang flavor, but not Elixir flavor [#8414](https://github.com/emqx/emqx/pull/8414)
* Changed the `exp` field in JWT auth to be optional rather than required to fix backwards compatability with 4.X releases. [#8425](https://github.com/emqx/emqx/pull/8425)
## Enhancements
* Improve the speed of dashboard's HTTP API routing rule generation, which sometimes causes timeout [#8438](https://github.com/emqx/emqx/pull/8438)

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# v5.0.4
## Enhancements
* Improve the dashboard listener startup log, the listener name is no longer spliced with port information,
and the colon(:) is no longer displayed when IP is not specified. [#8480](https://github.com/emqx/emqx/pull/8480)
* Remove `/configs/listeners` API, use `/listeners/` instead. [#8485](https://github.com/emqx/emqx/pull/8485)
* Optimize performance of builtin database operations in processes with long message queue [#8439](https://github.com/emqx/emqx/pull/8439)
* Improve authentication tracing. [#8554](https://github.com/emqx/emqx/pull/8554)
* Standardize the '/listeners' and `/gateway/<name>/listeners` API fields.
It will introduce some incompatible updates, see [#8571](https://github.com/emqx/emqx/pull/8571)
* Add option to perform GC on connection process after TLS/SSL handshake is performed. [#8637](https://github.com/emqx/emqx/pull/8637)
## Bug fixes
* The `data/configs/cluster-override.conf` is cleared to 0KB if `hocon_pp:do/2` failed [commits/71f64251](https://github.com/emqx/emqx/pull/8443/commits/71f642518a683cc91a32fd542aafaac6ef915720)
* Improve the health_check for webhooks.
Prior to this change, the webhook only checks the connectivity of the TCP port using `gen_tcp:connect/2`, so
if it's a HTTPs server, we didn't check if TLS handshake was successful.
[commits/6b45d2ea](https://github.com/emqx/emqx/commit/6b45d2ea9fde6d3b4a5b007f7a8c5a1c573d141e)
* The `created_at` field of rules is missing after emqx restarts. [commits/5fc09e6b](https://github.com/emqx/emqx/commit/5fc09e6b950c340243d7be627a0ce1700691221c)
* The rule engine's jq function now works even when the path to the EMQX install dir contains spaces [jq#35](https://github.com/emqx/jq/pull/35) [#8455](https://github.com/emqx/emqx/pull/8455)
* Avoid applying any ACL checks on superusers [#8452](https://github.com/emqx/emqx/pull/8452)
* Fix statistics related system topic name error
* Fix AuthN JWKS SSL schema. Using schema in `emqx_schema`. [#8458](https://github.com/emqx/emqx/pull/8458)
* `sentinel` field should be required when AuthN/AuthZ Redis using sentinel mode. [#8458](https://github.com/emqx/emqx/pull/8458)
* Fix bad swagger format. [#8517](https://github.com/emqx/emqx/pull/8517)
* Fix `chars_limit` is not working when `formatter` is `json`. [#8518](http://github.com/emqx/emqx/pull/8518)
* Ensuring that exhook dispatches the client events are sequential. [#8530](https://github.com/emqx/emqx/pull/8530)
* Avoid using RocksDB backend for persistent sessions when such backend is unavailable. [#8528](https://github.com/emqx/emqx/pull/8528)
* Fix AuthN `cert_subject` and `cert_common_name` placeholder rendering failure. [#8531](https://github.com/emqx/emqx/pull/8531)
* Support listen on an IPv6 address, e.g: [::1]:1883 or ::1:1883. [#8547](https://github.com/emqx/emqx/pull/8547)
* GET '/rules' support for pagination and fuzzy search. [#8472](https://github.com/emqx/emqx/pull/8472)
**‼️ Note** : The previous API only returns array: `[RuleObj1,RuleObj2]`, after updating, it will become
`{"data": [RuleObj1,RuleObj2], "meta":{"count":2, "limit":100, "page":1}`,
which will carry the paging meta information.
* Fix the issue that webhook leaks TCP connections. [ehttpc#34](https://github.com/emqx/ehttpc/pull/34), [#8580](https://github.com/emqx/emqx/pull/8580)

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# v5.0.5
## Enhancements
* Add `bootstrap_users_file` configuration to add default Dashboard username list, which is only added when EMQX is first started.
* The license is now copied to all nodes in the cluster when it's reloaded. [#8598](https://github.com/emqx/emqx/pull/8598)
* Added a HTTP API to manage licenses. [#8610](https://github.com/emqx/emqx/pull/8610)
* Updated `/nodes` API node_status from `Running/Stopped` to `running/stopped`. [#8642](https://github.com/emqx/emqx/pull/8642)
* Improve handling of placeholder interpolation errors [#8635](https://github.com/emqx/emqx/pull/8635)
* Better logging on unknown object IDs. [#8670](https://github.com/emqx/emqx/pull/8670)
* The bind option support `:1883` style. [#8758](https://github.com/emqx/emqx/pull/8758)
## Bug fixes
* Allow changing the license type from key to file (and vice-versa). [#8598](https://github.com/emqx/emqx/pull/8598)
* Add back http connector config keys `max_retries` `retry_interval` as deprecated fields [#8672](https://github.com/emqx/emqx/issues/8672)
This caused upgrade failure in 5.0.4, because it would fail to boot on configs created from older version.

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# v5.0.6
## Bug fixes
* Upgrade Dashboard version to fix an issue where the node status was not displayed correctly. [#8771](https://github.com/emqx/emqx/pull/8771)

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# v5.0.7
## Enhancements
* Do not auto-populate default SSL cipher suites, so that the configs are less bloated. [#8769](https://github.com/emqx/emqx/pull/8769)
## Bug fixes
* Remove `will_msg` (not used) field from the client API. [#8721](https://github.com/emqx/emqx/pull/8721)
* Fix `$queue` topic name error in management API return. [#8728](https://github.com/emqx/emqx/pull/8728)
* Fix race condition which may cause `client.connected` and `client.disconnected` out of order. [#8625](https://github.com/emqx/emqx/pull/8625)
* Fix quic listener default idle timeout's type. [#8826](https://github.com/emqx/emqx/pull/8826)

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# v5.0.8
## Enhancements
* Print a warning message when boot with the default (insecure) Erlang cookie. [#8905](https://github.com/emqx/emqx/pull/8905)
* Change the `/gateway` API path to plural form. [#8823](https://github.com/emqx/emqx/pull/8823)
* Don't allow updating config items when they already exist in `local-override.conf`. [#8851](https://github.com/emqx/emqx/pull/8851)
* Remove `node.etc_dir` from emqx.conf, because it is never used.
Also allow user to customize the logging directory [#8892](https://github.com/emqx/emqx/pull/8892)
* Added a new API `POST /listeners` for creating listener. [#8876](https://github.com/emqx/emqx/pull/8876)
* Close ExProto client process immediately if it's keepalive timeouted. [#8866](https://github.com/emqx/emqx/pull/8866)
* Upgrade grpc-erl driver to 0.6.7 to support batch operation in sending stream. [#8866](https://github.com/emqx/emqx/pull/8866)
## Bug fixes
* Fix exhook `client.authorize` never being execauted. [#8780](https://github.com/emqx/emqx/pull/8780)
* Fix JWT plugin don't support non-integer timestamp claims. [#8867](https://github.com/emqx/emqx/pull/8867)
* Avoid publishing will message when client fails to auhtenticate. [#8887](https://github.com/emqx/emqx/pull/8887)
* Speed up dispatching of shared subscription messages in a cluster [#8893](https://github.com/emqx/emqx/pull/8893)
* Fix the extra / prefix when CoAP gateway parsing client topics. [#8658](https://github.com/emqx/emqx/pull/8658)
* Speed up updating the configuration, When some nodes in the cluster are down. [#8857](https://github.com/emqx/emqx/pull/8857)
* Fix delayed publish inaccurate caused by os time change. [#8926](https://github.com/emqx/emqx/pull/8926)
* Fix that EMQX can't start when the retainer is disabled [#8911](https://github.com/emqx/emqx/pull/8911)
* Fix that redis authn will deny the unknown users [#8934](https://github.com/emqx/emqx/pull/8934)
* Fix ExProto UDP client keepalive checking error.
This causes the clients to not expire as long as a new UDP packet arrives [#8866](https://github.com/emqx/emqx/pull/8866)
* Fix that MQTT Bridge message payload could be empty string. [#8949](https://github.com/emqx/emqx/pull/8949)

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# v5.0.9
## Enhancements
- Add `cert_common_name` and `cert_subject` placeholder support for authz_http and authz_mongo [#8973](https://github.com/emqx/emqx/pull/8973).
- Use milliseconds internally in emqx_delayed to store the publish time, improving precision [#9060](https://github.com/emqx/emqx/pull/9060).
- More rigorous checking of flapping to improve stability of the system [#9136](https://github.com/emqx/emqx/pull/9136).
- No message(s) echo for the message publish APIs [#9155](https://github.com/emqx/emqx/pull/9155).
Prior to this fix, the message publish APIs (`api/v5/publish` and `api/v5/publish/bulk`) echos the message back to the client in HTTP body.
This change fixed it to only send back the message ID.
## Bug fixes
- Check ACLs for last will testament topic before publishing the message [#8930](https://github.com/emqx/emqx/pull/8930).
- Fix GET /listeners API crash when some nodes (in a cluster) is still loading the configs [#9002](https://github.com/emqx/emqx/pull/9002).
- Fix empty variable interpolation in authentication and authorization [#8963](https://github.com/emqx/emqx/pull/8963).
Placeholders for undefined variables are rendered now as empty strings and do not cause errors anymore.
- Fix the latency statistics error of the slow subscription stats [#8986](https://github.com/emqx/emqx/pull/8986).
Prior to this change when `stats_type` is `internal` or `response`, the begin time stamp was taken at wrong precision.
- Fix shared subscription message re-dispatches [#9104](https://github.com/emqx/emqx/pull/9104).
- When discarding QoS 2 inflight messages, there were excessive logs
- For wildcard deliveries, the re-dispatch used the wrong topic (the publishing topic,
but not the subscribing topic), caused messages to be lost when dispatching.
- Upgrade http client `gun` from 1.3.7 to [1.3.9](https://github.com/emqx/gun/tree/1.3.9)
Prior to this fix, long-lived HTTPS connections for HTTP auth or webhook integrations
may stall indefinitely, causing massive timeouts for HTTP requests.

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# v5.0.9
## 增强
- 为 `authz_http` 和 `authz_mongo` 增加了 `cert_common_name` 和 `cert_subject` 两个占位符 [#8973](https://github.com/emqx/emqx/pull/8973)。
- 统一使用 Erlang 虚拟机的时间，而不是系统时间，可以避免系统时间修改后导致的延迟发布不准确问题 [#9060](https://github.com/emqx/emqx/pull/9060)。
- 更严格的 flapping 检测，认证失败等也会进行计数 [#9136](https://github.com/emqx/emqx/pull/9136)。
## 修复
- 遗嘱消息发布前进行 ACL 检查 [#8930](https://github.com/emqx/emqx/pull/8930)。
- 在集群环境下，当有节点还没有完全初始化好配置时，`GET /listeners` 可能会返回 HTTP 500 的错误 [#9002](https://github.com/emqx/emqx/pull/9002)。
- 认证和鉴权的占位符替换中，如果没有找到匹配的值，使用空字符串代替，而不是抛出一异常 [#8963](https://github.com/emqx/emqx/pull/8963)。
- 慢订阅统计中时间单位用错的问题 [#8986](https://github.com/emqx/emqx/pull/8986)。
当统计类型（`stats_type`）是 `internal` 或者 `response` 时，起始时间戳的精度使用错误。
- 共享订阅消息重新派发 [#9104](https://github.com/emqx/emqx/pull/9104)。
- 当 QoS 2 的 inflight 消息被丢弃时，产生了大量的 warning 日志，修复后不再打印。
- 通配符订阅的共享订阅消息在重新派发时，使用了消息发布时的主题，而不是订阅的通配符主题选择
订阅组中的其他成员，导致转发失败。
- HTTP 客户端 （`gun`） 从 1.3.7 升级到 [1.3.9](https://github.com/emqx/gun/tree/1.3.9)。
此次修复前，HTTP 认证和 webhook 等使用 HTTPS 客户端长连接的后端可能会进入一个无限等待状态，导致大量超时发生。