diff --git a/.github/renovate.json5 b/.github/renovate.json5
index b633fc245fd..03e6d8da8c6 100644
--- a/.github/renovate.json5
+++ b/.github/renovate.json5
@@ -12,29 +12,59 @@
     {
       customType: 'regex',
       fileMatch: [
-        '^Cargo.toml$',
+        'Cargo.toml$',
       ],
       matchStrings: [
-        'rust-version.*?(?<currentValue>\\d+\\.\\d+(\\.\\d+)?)',
+        '\bMSRV:1\b.*?(?<currentValue>\\d+\\.\\d+(\\.\\d+)?)',
+        '(?<currentValue>\\d+\\.\\d+(\\.\\d+)?).*?\bMSRV:1\b',
       ],
-      depNameTemplate: 'latest-msrv',
+      depNameTemplate: 'MSRV:1',  // Support 1 version of rustc
+      packageNameTemplate: 'rust-lang/rust',
+      datasourceTemplate: 'github-releases',
+    },
+    {
+      customType: 'regex',
+      fileMatch: [
+        'Cargo.toml$',
+      ],
+      matchStrings: [
+        '\bMSRV:3\b.*?(?<currentValue>\\d+\\.\\d+(\\.\\d+)?)',
+        '(?<currentValue>\\d+\\.\\d+(\\.\\d+)?).*?\bMSRV:3\b',
+      ],
+      depNameTemplate: 'MSRV:3',  // Support 3 versions of rustc
       packageNameTemplate: 'rust-lang/rust',
       datasourceTemplate: 'github-releases',
     },
   ],
   packageRules: [
     {
-      commitMessageTopic: 'Latest MSRV',
+      commitMessageTopic: 'MSRV (1 version)',
+      matchManagers: [
+        'regex',
+      ],
+      matchPackageNames: [
+        'MSRV:1',
+      ],
+      schedule: [
+        '* * * * *',
+      ],
+      groupName: 'msrv',
+    },
+    {
+      commitMessageTopic: 'MSRV (3 versions)',
       matchManagers: [
         'regex',
       ],
       matchPackageNames: [
-        'latest-msrv',
+        'MSRV:3',
       ],
       "extractVersion": "^(?<version>\\d+\\.\\d+)",  // Drop the patch version
       schedule: [
         '* * * * *',
       ],
+      minimumReleaseAge: '85 days',  // 2 releases back * 6 weeks per release * 7 days per week + 1
+      internalChecksFilter: 'strict',
+      groupName: 'msrv',
     },
     // Goals:
     // - Rollup safe upgrades to reduce CI runner load
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1355469a2a0..a62122b7bb2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,7 @@ jobs:
     needs:
     - build_std
     - clippy
-    - credential_msrv
+    - msrv
     - docs
     - lockfile
     - resolver
@@ -38,7 +38,7 @@ jobs:
     needs:
     - build_std
     - clippy
-    - credential_msrv
+    - msrv
     - docs
     - lockfile
     - resolver
@@ -249,9 +249,9 @@ jobs:
         curl -sSLO https://raw.githubusercontent.com/rust-lang/rust/master/src/tools/linkchecker/linkcheck.sh
         sh linkcheck.sh --all --path ../src/doc cargo
 
-  credential_msrv:
+  msrv:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
     - uses: taiki-e/install-action@cargo-hack
-    - run: cargo hack check --all-targets --rust-version -p cargo-credential
+    - run: cargo hack check --all-targets --rust-version --workspace --ignore-private
diff --git a/Cargo.lock b/Cargo.lock
index 0becc6c67bb..8affbedbc0a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -239,7 +239,7 @@ dependencies = [
  "cargo-credential-libsecret",
  "cargo-credential-macos-keychain",
  "cargo-credential-wincred",
- "cargo-platform 0.1.5",
+ "cargo-platform 0.1.6",
  "cargo-test-macro",
  "cargo-test-support",
  "cargo-util",
@@ -305,7 +305,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-credential"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "anyhow",
  "libc",
@@ -319,7 +319,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-credential-1password"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "cargo-credential",
  "serde",
@@ -328,7 +328,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-credential-libsecret"
-version = "0.3.2"
+version = "0.3.3"
 dependencies = [
  "anyhow",
  "cargo-credential",
@@ -337,7 +337,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-credential-macos-keychain"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
  "cargo-credential",
  "security-framework",
@@ -345,7 +345,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-credential-wincred"
-version = "0.3.1"
+version = "0.3.2"
 dependencies = [
  "cargo-credential",
  "windows-sys",
@@ -362,7 +362,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-platform"
-version = "0.1.5"
+version = "0.1.6"
 dependencies = [
  "serde",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index bda07248e61..1af7cce75ca 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ exclude = [
 ]
 
 [workspace.package]
-rust-version = "1.73"
+rust-version = "1.73"  # MSRV:1
 edition = "2021"
 license = "MIT OR Apache-2.0"
 
@@ -108,6 +108,7 @@ name = "cargo"
 version = "0.76.0"
 edition.workspace = true
 license.workspace = true
+rust-version.workspace = true
 homepage = "https://crates.io"
 repository = "https://github.com/rust-lang/cargo"
 documentation = "https://docs.rs/cargo"
diff --git a/crates/cargo-platform/Cargo.toml b/crates/cargo-platform/Cargo.toml
index 016ead686c7..786948ff3a4 100644
--- a/crates/cargo-platform/Cargo.toml
+++ b/crates/cargo-platform/Cargo.toml
@@ -1,8 +1,9 @@
 [package]
 name = "cargo-platform"
-version = "0.1.5"
+version = "0.1.6"
 edition.workspace = true
 license.workspace = true
+rust-version = "1.70.0"  # MSRV:3
 homepage = "https://github.com/rust-lang/cargo"
 repository = "https://github.com/rust-lang/cargo"
 documentation = "https://docs.rs/cargo-platform"
diff --git a/crates/home/Cargo.toml b/crates/home/Cargo.toml
index 0f5eda524c7..702a14e552e 100644
--- a/crates/home/Cargo.toml
+++ b/crates/home/Cargo.toml
@@ -2,6 +2,7 @@
 name = "home"
 version = "0.5.8"
 authors = ["Brian Anderson <andersrb@gmail.com>"]
+rust-version = "1.70.0"  # MSRV:3
 documentation = "https://docs.rs/home"
 edition.workspace = true
 include = [
diff --git a/credential/cargo-credential-1password/Cargo.toml b/credential/cargo-credential-1password/Cargo.toml
index d7bd949d1a1..24dfdd930ff 100644
--- a/credential/cargo-credential-1password/Cargo.toml
+++ b/credential/cargo-credential-1password/Cargo.toml
@@ -1,8 +1,9 @@
 [package]
 name = "cargo-credential-1password"
-version = "0.4.0"
+version = "0.4.1"
 edition.workspace = true
 license.workspace = true
+rust-version = "1.70.0"  # MSRV:3
 repository = "https://github.com/rust-lang/cargo"
 description = "A Cargo credential process that stores tokens in a 1password vault."
 
diff --git a/credential/cargo-credential-libsecret/Cargo.toml b/credential/cargo-credential-libsecret/Cargo.toml
index 5bedad3b9cb..4c13128006c 100644
--- a/credential/cargo-credential-libsecret/Cargo.toml
+++ b/credential/cargo-credential-libsecret/Cargo.toml
@@ -1,8 +1,9 @@
 [package]
 name = "cargo-credential-libsecret"
-version = "0.3.2"
+version = "0.3.3"
 edition.workspace = true
 license.workspace = true
+rust-version.workspace = true
 repository = "https://github.com/rust-lang/cargo"
 description = "A Cargo credential process that stores tokens with GNOME libsecret."
 
diff --git a/credential/cargo-credential-macos-keychain/Cargo.toml b/credential/cargo-credential-macos-keychain/Cargo.toml
index 172e9c10b6a..e217ced45ff 100644
--- a/credential/cargo-credential-macos-keychain/Cargo.toml
+++ b/credential/cargo-credential-macos-keychain/Cargo.toml
@@ -1,8 +1,9 @@
 [package]
 name = "cargo-credential-macos-keychain"
-version = "0.3.1"
+version = "0.3.2"
 edition.workspace = true
 license.workspace = true
+rust-version.workspace = true
 repository = "https://github.com/rust-lang/cargo"
 description = "A Cargo credential process that stores tokens in a macOS keychain."
 
diff --git a/credential/cargo-credential-wincred/Cargo.toml b/credential/cargo-credential-wincred/Cargo.toml
index 6da6578a5c2..3d4dbf978a5 100644
--- a/credential/cargo-credential-wincred/Cargo.toml
+++ b/credential/cargo-credential-wincred/Cargo.toml
@@ -1,8 +1,9 @@
 [package]
 name = "cargo-credential-wincred"
-version = "0.3.1"
+version = "0.3.2"
 edition.workspace = true
 license.workspace = true
+rust-version.workspace = true
 repository = "https://github.com/rust-lang/cargo"
 description = "A Cargo credential process that stores tokens with Windows Credential Manager."
 
diff --git a/credential/cargo-credential/Cargo.toml b/credential/cargo-credential/Cargo.toml
index c8db996bf98..8ba65b8b9e3 100644
--- a/credential/cargo-credential/Cargo.toml
+++ b/credential/cargo-credential/Cargo.toml
@@ -1,9 +1,9 @@
 [package]
 name = "cargo-credential"
-version = "0.4.0"
+version = "0.4.1"
 edition.workspace = true
 license.workspace = true
-rust-version = "1.70.0"
+rust-version = "1.70.0"  # MSRV:3
 repository = "https://github.com/rust-lang/cargo"
 description = "A library to assist writing Cargo credential helpers."