From 820690401fe7bf90e1b7b9ed9f135d44531718fb Mon Sep 17 00:00:00 2001
From: bbalouki <bbalouki@outlook.com>
Date: Fri, 17 Jul 2026 09:07:30 +0100
Subject: [PATCH 1/2] update: version

---
 VERSION.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/VERSION.txt b/VERSION.txt
index fdd3be6..266146b 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-1.6.2
+1.6.3

From c27bd3a5661aa322458e2bbd7a8245d98e79b656 Mon Sep 17 00:00:00 2001
From: bbalouki <bbalouki@outlook.com>
Date: Fri, 17 Jul 2026 09:15:36 +0100
Subject: [PATCH 2/2] updates

---
 .github/PULL_REQUEST_TEMPLATE.md |  2 +-
 CHANGELOG.md                     | 21 ++++++++++++++++++++-
 CONTRIBUTING.md                  |  2 +-
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 8a42649..836ec71 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -16,7 +16,7 @@
 
 ## Checklist
 
-- [ ] Code follows the style in [CLAUDE](../CLAUDE.md) (`snake_case`, `PascalCase` types, `m_` members, trailing return types, etc.).
+- [ ] Code follows the style (`snake_case`, `PascalCase` types, `m_` members, trailing return types, etc.).
 - [ ] `clang-format` and `clang-tidy` pass locally.
 - [ ] Tests were added or updated under `tests/` and `ctest` passes.
 - [ ] Public API changes are documented with Doxygen `///` comments.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9232b53..695fd76 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.6.3] - 2026-07-17
+
+### Fixed
+
+- Python bindings (`ITCH_BUILD_PYTHON=ON`) failed to configure under newer
+  CMake releases because pybind11 defaulted to its legacy
+  `FindPythonInterp`-based discovery; `python/CMakeLists.txt` now forces the
+  modern `FindPython` path via `PYBIND11_FINDPYTHON`.
+- vcpkg `builtin-baseline` bumped past a pinned `benchmark` port revision
+  whose portfile passed an invalid `-Werror=old-style-cast` CMake argument,
+  which broke any fresh build of that dependency.
+- CI: pinned Windows runners off the floating `windows-latest` label (which
+  moved to a newer toolchain vcpkg's `benchmark` port doesn't yet build
+  under) and hardened the GitHub Actions vcpkg/CMake build caches (keyed on
+  the concrete runner label, no unsafe `restore-keys` fallback) so a
+  toolchain or dependency change can't silently restore an incompatible
+  cached build.
+
 ## [1.6.2] - 2026-07-11
 
 ### Fixed
@@ -79,7 +97,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   `std::variant`, plus `std::vector`- and callback-based parsing entry points
   with optional message-type filtering.
 
-[Unreleased]: https://github.com/bbalouki/itchcpp/compare/v1.6.2...HEAD
+[Unreleased]: https://github.com/bbalouki/itchcpp/compare/v1.6.3...HEAD
+[1.6.3]: https://github.com/bbalouki/itchcpp/compare/v1.6.2...v1.6.3
 [1.6.2]: https://github.com/bbalouki/itchcpp/compare/v1.6.1...v1.6.2
 [1.6.1]: https://github.com/bbalouki/itchcpp/compare/v1.6.0...v1.6.1
 [1.6.0]: https://github.com/bbalouki/itchcpp/compare/v1.1.0...v1.6.0
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 45fa547..f047891 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -34,7 +34,7 @@ Optional features are off by default and enabled with:
 
 ## Code style
 
-- Follow the rules in [CLAUDE](CLAUDE.md): `snake_case` functions/variables,
+- `snake_case` functions/variables,
   `PascalCase` types, `m_` private members, `SCREAMING_SNAKE_CASE` constants,
   symbols at least three characters, trailing return types, brace initialization,
   and `std::print`/`std::format` for output.