diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9c6702064..af2e27ba7 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -23,7 +23,7 @@ env:
 
 concurrency:
   # For a given workflow, if we push to the same branch, cancel all previous builds on that branch except on main.
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: "${{ github.workflow }}-${{ github.ref }}"
   cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}
 
 permissions:
diff --git a/CHANGES.rst b/CHANGES.rst
index f6ad34277..6252a9cd5 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -10,6 +10,10 @@ Announcements
 ^^^^^^^^^^^^^
 * `xclim` has migrated its development branch name from `master` to `main`. (:issue:`1667`, :pull:`1669`).
 
+Breaking changes
+^^^^^^^^^^^^^^^^
+* Added the `tox-gh` dependency to the development installation recipe. This will soon be required for running the `tox` test ensemble on GitHub Workflows. (:pull:`1709`).
+
 Bug fixes
 ^^^^^^^^^
 * Fixed an bug in sdba's ``map_groups`` that prevented passing DataArrays with cftime coordinates if the ``sdba_encode_cf`` option was True. (:issue:`1673`, :pull:`1674`).
@@ -20,7 +24,8 @@ Bug fixes
 Internal changes
 ^^^^^^^^^^^^^^^^
 * Added "doymin" and "doymax" to the possible operations of ``generic.stats``. Fixed a warning issue when ``op`` was "integral". (:pull:`1672`).
-
+* Reorganized GitHub CI build matrices to run the doctests more consistently. (:pull:`1709`).
+* Removed the experimental `numba` and `llvm` dependency installation steps in the `tox.ini` file. Added `numba@main` to the upstream dependencies. (:pull:`1709`).
 
 v0.48.2 (2024-02-26)
 --------------------
diff --git a/requirements_upstream.txt b/requirements_upstream.txt
index 4758fded4..71145c0ce 100644
--- a/requirements_upstream.txt
+++ b/requirements_upstream.txt
@@ -1,4 +1,5 @@
 bottleneck @ git+https://github.com/pydata/bottleneck.git@master
 cftime @ git+https://github.com/Unidata/cftime.git@master
 flox @ git+https://github.com/xarray-contrib/flox.git@main
+numba @ git+https://github.com/numba/numba.git@main
 xarray @ git+https://github.com/pydata/xarray.git@main