chore: Update MSRV everywhere to 1.70

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>

6 files changed, 10 insertions, 6 deletions

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9ebaf1a..62a9d48 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -36,9 +36,9 @@ build dependencies, you can skip running the tests yourself.
 **Code formatting:** Rust code must be formatted as if by the
 `rustfmt` tool. The test suite checks that.
 
-**Rust version:** We aim for Subplot to be buildable on the stable
+**Rust version:** We aim for Subplot to be buildable on the testing
 version of Debian and the Rust version packaged therein. At this time,
-that's Rust version 1.63.
+that's Rust version 1.70.
 
 **Python version:** We require Python code to work on Python 3.7 and
 later, the version in the current stable version of Debian.
diff --git a/Cargo.toml b/Cargo.toml
index d29c1bf..658733e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ and implementing automated acceptance tests for systems and software'''
 homepage = "https://subplot.tech/"
 repository = "https://gitlab.com/subplot/subplot"
 default-run = "subplot"
-rust-version = "1.63"
+rust-version = "1.70"
 
 [workspace]
 members = ["subplotlib", "subplotlib-derive", "subplot-build", "examples/seq"]
diff --git a/NEWS.md b/NEWS.md
index 01d145d..61a8537 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,6 +4,10 @@ This file summarises the changes between released versions of Subplot and its
 associated libraries, especially with regards to changes visible to
 the user of the Subplot software.
 
+# Version UNRELEASED
+
+- Subplot's MSRV has been updated to 1.70 in line with Debian testing.
+
 # Version 0.9.0, released 2023-08-27
 
 - We hope this will be the last breaking change before 1.0, however we
diff --git a/subplot-build/Cargo.toml b/subplot-build/Cargo.toml
index bf24c9a..66a0627 100644
--- a/subplot-build/Cargo.toml
+++ b/subplot-build/Cargo.toml
@@ -11,7 +11,7 @@ description = '''A library for using Subplot code generation from another projec
 `build.rs` module.'''
 homepage = "https://subplot.tech/"
 repository = "https://gitlab.com/subplot/subplot"
-rust-version = "1.63"
+rust-version = "1.70"
 
 
 [dependencies]
diff --git a/subplotlib-derive/Cargo.toml b/subplotlib-derive/Cargo.toml
index ece7103..cb181d6 100644
--- a/subplotlib-derive/Cargo.toml
+++ b/subplotlib-derive/Cargo.toml
@@ -12,7 +12,7 @@ macros for constructing subplotlib based test suites, typically
 generated by `subplot codegen`.'''
 homepage = "https://subplot.tech/"
 repository = "https://gitlab.com/subplot/subplot"
-rust-version = "1.63"
+rust-version = "1.70"
 
 [lib]
 proc-macro = true
diff --git a/subplotlib/Cargo.toml b/subplotlib/Cargo.toml
index 4994e5a..d790915 100644
--- a/subplotlib/Cargo.toml
+++ b/subplotlib/Cargo.toml
@@ -12,7 +12,7 @@ Utility functions and types for `subplot codegen` generated Rust based
 test suites.  Relies on `subplotlib-derive` for associated macros.'''
 homepage = "https://subplot.tech/"
 repository = "https://gitlab.com/subplot/subplot"
-rust-version = "1.63"
+rust-version = "1.70"
 
 
 [dependencies]