diff --git a/Makefile b/Makefile
index ab8cf2ee..a9485498 100644
--- a/Makefile
+++ b/Makefile
@@ -15,16 +15,23 @@ include extension-ci-tools/makefiles/duckdb_extension.Makefile
 # LoadInternal also calls ExtensionHelper::AutoLoadExtension(db, "icu") so
 # the timezone option is honoured. Autoload looks for the extension on disk
 # at $HOME/.duckdb/extensions/<duckdb_version>/<platform>/icu.duckdb_extension
-# and falls back to a hub download. Inside the linux_amd64 test docker
-# container that path is empty and there is no network egress, so the
-# autoload fails. We copy the icu.duckdb_extension that was built locally
-# as part of this extension's build (declared in extension_config.cmake)
-# into the expected path before running the unittester.
+# and falls back to a hub download. That fails both inside the linux_amd64
+# test docker container (empty path, no network egress) and on the macOS
+# osx_arm64 test runner (hub icu not reliably resolvable). We copy the
+# icu.duckdb_extension that was built locally as part of this extension's
+# build (declared in extension_config.cmake) into the expected path,
+# matched to the DuckDB platform string, before running the unittester.
 DUCKDB_VERSION_TAG := v1.4.4
 
 define stage_icu
 	@if [ -f ./build/$(1)/extension/icu/icu.duckdb_extension ]; then \
-	  platform=$$(uname -m | sed 's/x86_64/linux_amd64/;s/aarch64/linux_arm64/'); \
+	  case "$$(uname -s)-$$(uname -m)" in \
+	    Linux-x86_64)  platform=linux_amd64 ;; \
+	    Linux-aarch64) platform=linux_arm64 ;; \
+	    Darwin-arm64)  platform=osx_arm64 ;; \
+	    Darwin-x86_64) platform=osx_amd64 ;; \
+	    *)             platform=$$(uname -m) ;; \
+	  esac; \
 	  target=$$HOME/.duckdb/extensions/$(DUCKDB_VERSION_TAG)/$$platform; \
 	  mkdir -p "$$target" && cp -f ./build/$(1)/extension/icu/icu.duckdb_extension "$$target/" && \
 	  echo "Staged icu.duckdb_extension at $$target/"; \
diff --git a/src/include/tydef.hpp b/src/include/tydef.hpp
index b7b28109..b9860ca0 100644
--- a/src/include/tydef.hpp
+++ b/src/include/tydef.hpp
@@ -11,11 +11,27 @@ extern "C" {
     #include <meos_internal.h>
 }
 
-// Forward-compat alias for the meosType → MeosType rename (MobilityDB
-// pr785-sync-script).  Vcpkg's MEOS exposes `MeosType`; existing
-// MobilityDuck code still uses `meosType`.  This alias bridges the two
-// without touching every reference site.
-using meosType = MeosType;
+// MEOS naming history: `meosType` is the **pre-consolidation** spelling
+// and `MeosType` is the **post-consolidation** target (the rename is
+// part of the upstream consolidation sweep, not yet reached by the
+// vcpkg pin).  The current pin
+// (`vcpkg_ports/meos/portfile.cmake` REF f11b7443ee98…) is still
+// pre-consolidation and exposes `meosType` — see
+// meos/include/temporal/meos_catalog.h, where line 121 declares
+// `} meosType;`.  MobilityDuck's source consistently uses
+// `meosType` (verified via `grep -rn '\bmeosType\b' src/`), which
+// matches the pin, so no alias is needed today.
+//
+// An earlier version of this file added `using meosType = MeosType;`
+// as a forward-looking bridge for the eventual consolidation bump.
+// That alias references `MeosType`, which the current pin does NOT
+// yet expose, so it broke the build:
+//   "'MeosType' does not name a type; did you mean 'meosType'?".
+//
+// When the MEOS pin is bumped past the consolidation point, restore
+// a bridge here (`using meosType = MeosType;` becomes valid then) or
+// sweep the source `meosType → MeosType` in one PR — whichever the
+// project prefers at that time.
 
 namespace duckdb {
 
diff --git a/test/sql/parity/026b_tnumber_mathfuncs_followups.test b/test/sql/parity/026b_tnumber_mathfuncs_followups.test
index 64027f7a..4f0a0b50 100644
--- a/test/sql/parity/026b_tnumber_mathfuncs_followups.test
+++ b/test/sql/parity/026b_tnumber_mathfuncs_followups.test
@@ -6,22 +6,25 @@
 
 require mobilityduck
 
-# Unary tfloat math: ln(e) ≈ 1, log10(100) = 2, exp(0) = 1
+# Unary tfloat math: ln(e) ≈ 1, log10(100) = 2, exp(0) = 1.
+# These lifts insert one chord-error-minimising turning point on the linear
+# input segment (tfloat_ln_turnpt / tfloat_exp_turnpt), so the result has
+# three instants where the input had two.
 
 query I
 SELECT round(ln(tfloat '[1@2000-01-01, 2.71828182845905@2000-01-02]'), 6);
 ----
-[0@2000-01-01 00:00:00+01, 1@2000-01-02 00:00:00+01]
+[0@2000-01-01 00:00:00+01, 0.541325@2000-01-01 10:01:57.212526+01, 1@2000-01-02 00:00:00+01]
 
 query I
 SELECT log10(tfloat '[1@2000-01-01, 100@2000-01-02]');
 ----
-[0@2000-01-01 00:00:00+01, 2@2000-01-02 00:00:00+01]
+[0@2000-01-01 00:00:00+01, 1.332389510222689@2000-01-01 04:58:08.794345+01, 2@2000-01-02 00:00:00+01]
 
 query I
 SELECT round(exp(tfloat '[0@2000-01-01, 1@2000-01-02]'), 6);
 ----
-[1@2000-01-01 00:00:00+01, 2.718282@2000-01-02 00:00:00+01]
+[1@2000-01-01 00:00:00+01, 1.718282@2000-01-01 12:59:30.467438+01, 2.718282@2000-01-02 00:00:00+01]
 
 # deltaValue — successive differences