diff --git a/ci/install-and-vendor-osgeo.py b/ci/install-and-vendor-osgeo.py
index 258cc0e957..3272fa1153 100644
--- a/ci/install-and-vendor-osgeo.py
+++ b/ci/install-and-vendor-osgeo.py
@@ -146,14 +146,13 @@ def install_gdal_python_bindings() -> None:
     # Cap build-time setuptools (see ci/gdal-build-constraints.txt): 84.0.0
     # lets GDAL's setup.py `-std=c++11` reach the C compile of
     # gdalconst_wrap.c, which Apple clang rejects and breaks the macOS
-    # wheels. Set BOTH vars: PIP_CONSTRAINT covers the direct install
-    # (arm64 --no-build-isolation), and PIP_BUILD_CONSTRAINT covers the
-    # isolated build env (x86_64 / Linux). pip currently honors
-    # PIP_CONSTRAINT for build deps too but warns it will stop in pip 26.2,
-    # pointing at PIP_BUILD_CONSTRAINT — so we set both to stay durable.
+    # wheels. PIP_CONSTRAINT covers the direct install on every path
+    # (including the arm64 --no-build-isolation setuptools install below).
+    # PIP_BUILD_CONSTRAINT — the build-isolation-specific var pip 26.2 will
+    # require — is set later, ONLY when build isolation is used: pip errors
+    # if it is passed together with --no-build-isolation.
     _gdal_build_constraints = str(REPO_ROOT / "ci" / "gdal-build-constraints.txt")
     env.setdefault("PIP_CONSTRAINT", _gdal_build_constraints)
-    env.setdefault("PIP_BUILD_CONSTRAINT", _gdal_build_constraints)
 
     if is_windows:
         bin_dir, _, lib_dir = _data_layout_roots(prefix)
@@ -271,6 +270,15 @@ def install_gdal_python_bindings() -> None:
         )
         extra_pip_args.append("--no-build-isolation")
 
+    # PIP_BUILD_CONSTRAINT constrains the ISOLATED build env; pip errors out
+    # if it is set together with --no-build-isolation. Set it only when the
+    # GDAL build uses isolation (x86_64 / Linux) — the arm64
+    # --no-build-isolation path pre-installs a PIP_CONSTRAINT-capped
+    # setuptools and is already covered. This future-proofs isolation builds
+    # for pip 26.2, which stops honoring PIP_CONSTRAINT for build deps.
+    if "--no-build-isolation" not in extra_pip_args:
+        env.setdefault("PIP_BUILD_CONSTRAINT", _gdal_build_constraints)
+
     cmd = [
         sys.executable,
         "-m",
diff --git a/docs/change-log.md b/docs/change-log.md
index 552e86c29c..81b3a0167d 100644
--- a/docs/change-log.md
+++ b/docs/change-log.md
@@ -1,6 +1,25 @@
 # Change log
 
 
+## 0.50.0 (2026-08-09)
+
+### BREAKING CHANGE
+
+- read_multiple_files' `extension` parameter is replaced by a `glob` fnmatch filter
+(e.g. `extension="tif"` becomes `glob="*.tif"`).
+
+### Feat
+
+- **collection**: consolidate the DatasetCollection readers into from_files and harden the dunders (#942)
+
+### Fix
+
+- **ci**: pin build-time setuptools <84 for the GDAL bindings build (#950)
+
+### Refactor
+
+- **netcdf**: write to_netcdf through GDAL, no xarray outside the interop methods (#945)
+
 ## 0.49.0 (2026-08-05)
 
 ### BREAKING CHANGE
diff --git a/pyproject.toml b/pyproject.toml
index 4c2dad0ccf..dfb37adb05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "pyramids-gis"
-version = "0.49.0"
+version = "0.50.0"
 description = "GIS utility package"
 readme = {file = "README.md", content-type = "text/markdown"}
 authors = [{ name = "Mostafa Farrag", email = "moah.farag@gmail.com" }]