bump MSRV to 1.70

Author: michaelkirk

.github/workflows/test.yml

@@ -11,8 +11,8 @@ on:
 
 env:
   LIBPROJ_VERSION: 9.4.0
-  RUST_MSRV: "1.70"
-  RUST_LATEST: "1.77"
+  RUST_MSRV: "1.75"
+  RUST_LATEST: "1.83"
 
 jobs:
   # work around GHA env strictness

CHANGES.md

@@ -1,9 +1,10 @@
 # Changes
 
 ## Unreleased
+
 - Update to proj-sys 0.24.0 (libproj 9.4.0)
 - Provide bundled bindings by default and move support for build time generated bindings behind the `buildtime_bindgen` feature of proj-sys
-- Bump MSRV to 1.65
+- Bump MSRV to 1.70
 
 ## 0.27.2
 

Cargo.toml

@@ -11,7 +11,7 @@ keywords = ["proj", "projection", "osgeo", "geo"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
 edition = "2018"
-rust-version = "1.70"
+rust-version = "1.75"
 
 [dependencies]
 proj-sys = { version = "0.24.0", path = "proj-sys" }