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emqx/CHANGES-5.0.md

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5.0.2

Announcemnet: EMQX team has decided to stop supporting relup for opensouce 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 enought in deliverying 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
  • Ristricted 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. 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
  • Added more TCP options for exhook (gRPC) connections. 8317
  • Allow http authz backend to return a HTTP body to indicate result deny | allow or ignore. 8377
  • Bulk subscribe/unsubscribe APIs 8356
  • Added exclusive subscription 8315
  • Improve authn failure/error counter metrics 8352 8375
  • Do not allow admin user self-deletion 8286
  • After restart, ensure to copy cluster-override.conf from the clustered node which has the greatest tnxid. 8333

Bug fixes

  • A bug fix ported from 4.x: allow deleting subscriptions from client.subscribe hookpoint callback result. 8304 8347

  • Fixed Erlang distribution over TLS 8309

  • Made possible to override authentication configs from environment variables 8323

  • Made authentication passwords in Mnesia database backward compatible to 4.x, so we can support data migration better. 8351

  • Fix plugins upload for rpm/deb installations 8379

  • Sync data/authz/acl.conf and data/certs from clustered nodes after a new node joins the cluster 8369

  • Ensure auto-retry of failed resources 8371

  • Fix matrics name connack.auth_error -> packets.connack.auth_error 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.