v1.5.0

• Updated default pyo3 version to 0.21.2 and adjusted to the new Bound<'py, T> smart pointer in pyo3 template (thanks for reporting @jermatic)

---

PyO3 compatibility note: Templating-dependent extensions experiencing problems with the new pyo3 version need to either migrate their code or fix their pyo3 version by adding a manifest comment like this at the top of their rust source file(s):

// rustimport: pyo3

+ //: [dependencies]
+ //: pyo3 = { version = "0.18.3", features = ["extension-module"] }

––snip––

Full Changelog: v1.4.0...v1.5.0