diff --git a/dev-cpp/tlfloat/Manifest b/dev-cpp/tlfloat/Manifest
index 0c0f6d8ab0cf1..e117c241202c6 100644
--- a/dev-cpp/tlfloat/Manifest
+++ b/dev-cpp/tlfloat/Manifest
@@ -1 +1 @@
-DIST tlfloat-1.15.0_p20250711.tar.gz 269342 BLAKE2B 6619a8f6a74a12dee64782c904ba0d250dd030ccfb728d179dd366380403a6ce60d15c3c2785cb2f5a8baa95211c57315ed4b818b64902b8cfe74596f5e4c8dc SHA512 cea86de671f58e3481bc9f411e48ceb2788f20fa96c835d17a57599e5abe6312016746016fcc30a4e83089214e9d6cef72d262eaeee01e9ac634da9b6efada31
+DIST tlfloat-1.17.1_p20250711.tar.gz 269342 BLAKE2B 6619a8f6a74a12dee64782c904ba0d250dd030ccfb728d179dd366380403a6ce60d15c3c2785cb2f5a8baa95211c57315ed4b818b64902b8cfe74596f5e4c8dc SHA512 cea86de671f58e3481bc9f411e48ceb2788f20fa96c835d17a57599e5abe6312016746016fcc30a4e83089214e9d6cef72d262eaeee01e9ac634da9b6efada31
diff --git a/dev-cpp/tlfloat/files/tlfloat-1.15.0_p20250711-fPIC.patch b/dev-cpp/tlfloat/files/tlfloat-1.17.1_p20250711-fPIC.patch
similarity index 100%
rename from dev-cpp/tlfloat/files/tlfloat-1.15.0_p20250711-fPIC.patch
rename to dev-cpp/tlfloat/files/tlfloat-1.17.1_p20250711-fPIC.patch
diff --git a/dev-cpp/tlfloat/tlfloat-1.15.0_p20250711.ebuild b/dev-cpp/tlfloat/tlfloat-1.17.1_p20250711.ebuild
similarity index 73%
rename from dev-cpp/tlfloat/tlfloat-1.15.0_p20250711.ebuild
rename to dev-cpp/tlfloat/tlfloat-1.17.1_p20250711.ebuild
index baa81f106762d..2aee4119102da 100644
--- a/dev-cpp/tlfloat/tlfloat-1.15.0_p20250711.ebuild
+++ b/dev-cpp/tlfloat/tlfloat-1.17.1_p20250711.ebuild
@@ -1,9 +1,13 @@
-# Copyright 2025 Gentoo Authors
+# Copyright 2025-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
+
 inherit cmake
 
+# Upstream don't seem to tag releases. Check TLFLOAT_VERSION_{MAJOR,MINOR,PATCH}
+# in CMakeLists.txt. Reverse dependencies may need quite new versions so
+# we want PV to be accurate.
 CommitId=38f525b838b05dd5c266d34b16cb554cf1fe37c5
 
 DESCRIPTION="C++ template library for floating point operations"