Merge pull request #8007 from jasongrout/serviceschangelog

Elaborate more on the services changes in the changelog.

docs/source/getting_started/changelog.rst

@@ -73,7 +73,7 @@ Backward incompatible changes
 
 * Switch from ``@phosphor`` to ``@lumino`` dependencies. (`#7582 <https://github.com/jupyterlab/jupyterlab/pull/7582>`__, `#7534 <https://github.com/jupyterlab/jupyterlab/issues/7534>`__, `#7763 <https://github.com/jupyterlab/jupyterlab/pull/7763>`__, `#7762 <https://github.com/jupyterlab/jupyterlab/issues/7762>`__, `#7595 <https://github.com/jupyterlab/jupyterlab/pull/7595>`__)
 * Factor out the ``settingsregistry`` and ``statedb`` packages from coreutils (`#7681 <https://github.com/jupyterlab/jupyterlab/pull/7681>`__, `#7615 <https://github.com/jupyterlab/jupyterlab/issues/7615>`__)
-* Rework services architecture (sessions, kernels, terminals) and rename ``ClientSession`` to ``SessionContext`` (`#7252 <https://github.com/jupyterlab/jupyterlab/pull/7252>`__, `#7674 <https://github.com/jupyterlab/jupyterlab/pull/7674>`__, `#7820 <https://github.com/jupyterlab/jupyterlab/pull/7820>`__, `#7694 <https://github.com/jupyterlab/jupyterlab/pull/7694>`__, `#7690 <https://github.com/jupyterlab/jupyterlab/issues/7690>`__, `#7682 <https://github.com/jupyterlab/jupyterlab/pull/7682>`__)
+* Rework services architecture (sessions, kernels, terminals). Among these changes, ``ClientSession`` is renamed to ``SessionContext`` and the ``IKernelConnection.connectToComm`` method is replaced with ``IKernelConnection.createComm`` and ``IKernelConnection.hasComm`` methods. (`#7252 <https://github.com/jupyterlab/jupyterlab/pull/7252>`__, `#7674 <https://github.com/jupyterlab/jupyterlab/pull/7674>`__, `#7820 <https://github.com/jupyterlab/jupyterlab/pull/7820>`__, `#7694 <https://github.com/jupyterlab/jupyterlab/pull/7694>`__, `#7690 <https://github.com/jupyterlab/jupyterlab/issues/7690>`__, `#7682 <https://github.com/jupyterlab/jupyterlab/pull/7682>`__)
 * Upgrade to TypeScript 3.7 (`#7522 <https://github.com/jupyterlab/jupyterlab/pull/7522>`__)
 * Remove ``polling`` from coreutils in favor for ``@lumino/polling`` (`#7617 <https://github.com/jupyterlab/jupyterlab/pull/7617>`__)
 * TypeScript strict null checking in core packages (`#7657 <https://github.com/jupyterlab/jupyterlab/pull/7657>`__, `#7607 <https://github.com/jupyterlab/jupyterlab/pull/7607>`__)