diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 91da240b..6a7c6ef2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ name: CI
 
 jobs:
   tests:
-      name: Check
+      name: stable lint, test, build
       runs-on: ubuntu-latest
       steps:
         - name: Checkout sources
@@ -14,16 +14,23 @@ jobs:
           uses: dtolnay/rust-toolchain@stable
           with:
             components: clippy
-        - name: Install cargo-hack
+        - name: Install cargo-hack and cargo-msrv
           uses: taiki-e/install-action@v2
           with:
-            tool: cargo-hack
-        - run: cargo hack check --workspace --feature-powerset --exclude-features rustc-dep-of-std
-        - run: cargo hack clippy --workspace --feature-powerset --exclude-features rustc-dep-of-std
-        - run: cargo hack test --workspace --feature-powerset --exclude-features rustc-dep-of-std
+            tool: cargo-hack, cargo-msrv
+        - name: check
+          run: cargo hack check --workspace --feature-powerset --exclude-features rustc-dep-of-std
+        - name: cargo hack clippy
+          run: cargo hack clippy --workspace --feature-powerset --exclude-features rustc-dep-of-std
+        - name: cargo hack test
+          run: cargo hack test --workspace --feature-powerset --exclude-features rustc-dep-of-std
+        - name: Verify MSRV (cli)
+          run: cargo msrv verify --path cli/
+        - name: Verify MSRV (lib)
+          run: cargo msrv verify --path ruzstd/
 
   nightly-stuff:
-    name: nightly clippy, format and miri tests
+    name: nightly lint, miri
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
@@ -39,4 +46,3 @@ jobs:
       - run: cargo +nightly clippy --workspace -- -D warnings
       - run: cargo +nightly miri test ringbuffer
       - run: cargo +nightly miri test short_Writer
-
diff --git a/Changelog.md b/Changelog.md
index 8ca8243d..644f8cbe 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -3,6 +3,7 @@
 This document records the changes made between versions, starting with version 0.5.0
 
 # After 0.8.2 (Current)
+* Introduce the `rust-version` field
 
 # After 0.8.1
 * The CLI has been refactored to use `clap`
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 93b03691..2fc340ba 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -1,7 +1,8 @@
 
 [package]
 name = "ruzstd-cli"
-version = "0.8.1"
+version = "0.8.2"
+rust-version = "1.87.0"
 authors = ["Moritz Borcherding <moritz.borcherding@web.de>"]
 edition = "2018"
 license = "MIT"
@@ -26,4 +27,4 @@ ruzstd = { path = "../ruzstd", features = ["std"] }
 [dev-dependencies]
 criterion = "0.5"
 rand = { version = "0.8.5", features = ["small_rng"] }
-zstd = "0.13.2"
\ No newline at end of file
+zstd = "0.13.2"
diff --git a/cli/src/main.rs b/cli/src/main.rs
index 6d20429e..fb336717 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -4,7 +4,6 @@ use progress::ProgressMonitor;
 
 use std::fs::File;
 use std::io::BufReader;
-use std::os::unix::fs::MetadataExt;
 use std::path::Path;
 use std::path::PathBuf;
 
@@ -134,7 +133,7 @@ fn compress(input: PathBuf, output: PathBuf, level: u8) -> color_eyre::Result<()
 fn decompress(input: PathBuf, output: PathBuf) -> color_eyre::Result<()> {
     info!("extracting {input:?} to {output:?}");
     let source_file = File::open(input).wrap_err("failed to open input file")?;
-    let source_size = source_file.metadata()?.size() as usize;
+    let source_size = source_file.metadata()?.len() as usize;
     let buffered_source = BufReader::new(source_file);
     let decoder_input = ProgressMonitor::new(buffered_source, source_size);
     let mut output: File =
diff --git a/ruzstd/Cargo.toml b/ruzstd/Cargo.toml
index 53aac8fd..9e2e1e61 100644
--- a/ruzstd/Cargo.toml
+++ b/ruzstd/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "ruzstd"
-version = "0.8.2"
+version = "0.8.3"
+rust-version = "1.87"
 authors = ["Moritz Borcherding <moritz.borcherding@web.de>"]
 edition = "2018"
 license = "MIT"
diff --git a/ruzstd/src/decoding/ringbuffer.rs b/ruzstd/src/decoding/ringbuffer.rs
index 53796e51..cf25bc6f 100644
--- a/ruzstd/src/decoding/ringbuffer.rs
+++ b/ruzstd/src/decoding/ringbuffer.rs
@@ -154,7 +154,7 @@ impl RingBuffer {
 
         self.reserve(len);
 
-        debug_assert!(self.len() + len <= self.cap - 1);
+        debug_assert!(self.len() + len < self.cap);
         debug_assert!(self.free() >= len, "free: {} len: {}", self.free(), len);
 
         let ((f1_ptr, f1_len), (f2_ptr, f2_len)) = self.free_slice_parts();
diff --git a/ruzstd/src/decoding/sequence_section_decoder.rs b/ruzstd/src/decoding/sequence_section_decoder.rs
index bc56a1f4..2753fe0c 100644
--- a/ruzstd/src/decoding/sequence_section_decoder.rs
+++ b/ruzstd/src/decoding/sequence_section_decoder.rs
@@ -71,18 +71,18 @@ fn decode_sequences_with_rle(
 
     for _seq_idx in 0..section.num_sequences {
         //get the codes from either the RLE byte or from the decoder
-        let ll_code = if scratch.ll_rle.is_some() {
-            scratch.ll_rle.unwrap()
+        let ll_code = if let Some(ll_rle) = scratch.ll_rle {
+            ll_rle
         } else {
             ll_dec.decode_symbol()
         };
-        let ml_code = if scratch.ml_rle.is_some() {
-            scratch.ml_rle.unwrap()
+        let ml_code = if let Some(ml_rle) = scratch.ml_rle {
+            ml_rle
         } else {
             ml_dec.decode_symbol()
         };
-        let of_code = if scratch.of_rle.is_some() {
-            scratch.of_rle.unwrap()
+        let of_code = if let Some(of_rle) = scratch.of_rle {
+            of_rle
         } else {
             of_dec.decode_symbol()
         };
diff --git a/ruzstd/src/fse/fse_encoder.rs b/ruzstd/src/fse/fse_encoder.rs
index ad5e815f..974eecf5 100644
--- a/ruzstd/src/fse/fse_encoder.rs
+++ b/ruzstd/src/fse/fse_encoder.rs
@@ -369,7 +369,7 @@ pub(super) fn build_table_from_probabilities(probs: &[i32], acc_log: u8) -> FSET
         let state = &mut states[symbol];
 
         // We process the states in their order in the table
-        state.states.sort_by(|l, r| l.index.cmp(&r.index));
+        state.states.sort_by_key(|l| l.index);
 
         let prob_log = if prob.is_power_of_two() {
             prob.ilog2()
@@ -401,7 +401,7 @@ pub(super) fn build_table_from_probabilities(probs: &[i32], acc_log: u8) -> FSET
         }
 
         // For encoding we use the states ordered by the indexes they target
-        state.states.sort_by(|l, r| l.baseline.cmp(&r.baseline));
+        state.states.sort_by_key(|l| l.baseline);
     }
 
     FSETable {
diff --git a/ruzstd/src/huff0/huff0_encoder.rs b/ruzstd/src/huff0/huff0_encoder.rs
index f5eefc97..28b45ce4 100644
--- a/ruzstd/src/huff0/huff0_encoder.rs
+++ b/ruzstd/src/huff0/huff0_encoder.rs
@@ -179,7 +179,7 @@ impl HuffmanTable {
 
         weights.reverse();
         let mut counts_sorted = counts.iter().enumerate().collect::<Vec<_>>();
-        counts_sorted.sort_by(|(_, c1), (_, c2)| c1.cmp(c2));
+        counts_sorted.sort_by_key(|(_, c1)| *c1);
 
         let mut weights_distributed = alloc::vec![0; counts.len()];
         for (idx, count) in counts_sorted {