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8 changes: 8 additions & 0 deletions doc/release-notes/upgrading.en.rst
Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,11 @@ The following features have been changed in this version of ATS.
Moved away from the binary serialization mechanism used to comunicate between |TS| and the tools to a JSON-RPC text based protocol. Underlying
Unix Domain Socket protocol remains the same. Check :ref:`jsonrpc-protocol` for more details.

* Other changes

* It is now a fatal error when ATS cannot bind or listen to a configured port
* Propagate socket options specified in :ts:cv:`proxy.config.net.sock_option_flag_in` to newly accepted connections

API Changes
-----------
The following APIs have changed, either in semantics, interfaces, or both.
Expand All @@ -74,6 +79,7 @@ The following APIs have changed, either in semantics, interfaces, or both.
* TSHttpTxnAborted
* TSMimeHdrPrint
* Enum values for hooks and events have been changed (ABI incompatible change)
* TSSslSecretGet

* New TS API

Expand Down Expand Up @@ -226,3 +232,5 @@ The ``cqtx`` log field has been removed, but can be replaced by ``cqhm pqu cqpv`
The ``cqhv`` log field has been removed.

The ``cpu``, ``cquc``, ``cqup``, and ``cqus`` log fields have new names, ``pqu``, ``pquc``, ``pqup``, and ``pqus``. The old names have been deprecated.

The ``chi`` log field now represents the IP address of the previous hop if :ref:`Proxy Protocol <proxy-protocol>` is used.