diff --git a/CHANGELOG.md b/CHANGELOG.md
index 784d1ef..20b04e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## v2.2.0 (2026-09-18)
 
 ### Security
 - `clawhdf5-format`: bounded decompression output (`MAX_DECOMPRESS_SIZE`) for
@@ -245,6 +245,16 @@
   reading compound types and — critically — every chunked/compressed dataset
   written by HDF5 2.0. Found by running the h5py interop tests against
   h5py 3.16 / HDF5 2.0.
+  Independently reported (with a patch) against the v2.1.0 tag by
+  M. Scot Breitenfeld (The HDF Group) — v2.1.0 predates this fix.
+- `clawhdf5-format`: parse HDF5 2.0 native complex datatypes (class 11,
+  datatype version 5, e.g. `H5T_COMPLEX_IEEE_F64LE`). The properties are a
+  single base floating-point datatype, not a compound-style member list; the
+  old parser read the base type's bytes as member names, producing a garbage
+  datatype, and failed with `UnexpectedEof` when a complex type was nested in
+  a compound. It is now surfaced as the equivalent `{r, i}` compound (the
+  shape h5py writes for numpy complex dtypes), with a size check against the
+  base type. Validated end-to-end against an HDF5 2.0-written file.
 
 ### Performance
 - `clawhdf5-format`: chunked writes now compress all chunks up front via
diff --git a/Cargo.toml b/Cargo.toml
index 7fbd4a6..d2a6d2a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,10 +21,10 @@ members = [
 resolver = "2"
 
 [workspace.package]
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 
 [workspace.dependencies]
 tempfile = "3"
diff --git a/crates/clawhdf5-accel/Cargo.toml b/crates/clawhdf5-accel/Cargo.toml
index 25c89a9..7dbba6f 100644
--- a/crates/clawhdf5-accel/Cargo.toml
+++ b/crates/clawhdf5-accel/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-accel"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "SIMD-accelerated operations for rustyhdf5"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "simd", "acceleration", "performance"]
 categories = ["science", "algorithms"]
diff --git a/crates/clawhdf5-agent/Cargo.toml b/crates/clawhdf5-agent/Cargo.toml
index 066a416..d7ba0ff 100644
--- a/crates/clawhdf5-agent/Cargo.toml
+++ b/crates/clawhdf5-agent/Cargo.toml
@@ -1,21 +1,21 @@
 [package]
 name = "clawhdf5-agent"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "HDF5-backed persistent memory store for on-device AI agents"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["agent", "memory", "hdf5", "vector-search", "embedding"]
 categories = ["database", "science", "algorithms"]
 
 [dependencies]
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0", features = ["parallel", "fast-checksum"] }
-clawhdf5 = { path = "../clawhdf5", version = "2.1.0" }
-clawhdf5-io = { path = "../clawhdf5-io", version = "2.1.0", features = ["mmap"] }
-clawhdf5-accel = { path = "../clawhdf5-accel", version = "2.1.0" }
-clawhdf5-ann = { path = "../clawhdf5-ann", version = "2.1.0", optional = true }
-clawhdf5-gpu = { path = "../clawhdf5-gpu", version = "2.1.0", optional = true, default-features = false }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0", features = ["parallel", "fast-checksum"] }
+clawhdf5 = { path = "../clawhdf5", version = "2.2.0" }
+clawhdf5-io = { path = "../clawhdf5-io", version = "2.2.0", features = ["mmap"] }
+clawhdf5-accel = { path = "../clawhdf5-accel", version = "2.2.0" }
+clawhdf5-ann = { path = "../clawhdf5-ann", version = "2.2.0", optional = true }
+clawhdf5-gpu = { path = "../clawhdf5-gpu", version = "2.2.0", optional = true, default-features = false }
 serde = { workspace = true }
 byteorder = "1"
 half = { workspace = true, optional = true }
diff --git a/crates/clawhdf5-android/Cargo.toml b/crates/clawhdf5-android/Cargo.toml
index 92f71fd..e5be0e8 100644
--- a/crates/clawhdf5-android/Cargo.toml
+++ b/crates/clawhdf5-android/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clawhdf5-android"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Android JNI bridge for edgehdf5-memory HDF5 backend"
 license = "MIT"
diff --git a/crates/clawhdf5-ann/Cargo.toml b/crates/clawhdf5-ann/Cargo.toml
index 9abfcf8..9e5fcc6 100644
--- a/crates/clawhdf5-ann/Cargo.toml
+++ b/crates/clawhdf5-ann/Cargo.toml
@@ -1,18 +1,18 @@
 [package]
 name = "clawhdf5-ann"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "HNSW approximate nearest neighbor index stored as HDF5"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "ann", "hnsw", "nearest-neighbor"]
 categories = ["algorithms", "science"]
 
 [dependencies]
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0" }
-clawhdf5-io = { path = "../clawhdf5-io", version = "2.1.0" }
-clawhdf5-accel = { path = "../clawhdf5-accel", version = "2.1.0" }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0" }
+clawhdf5-io = { path = "../clawhdf5-io", version = "2.2.0" }
+clawhdf5-accel = { path = "../clawhdf5-accel", version = "2.2.0" }
 rayon = { version = "1", optional = true }
 
 [features]
diff --git a/crates/clawhdf5-bench/Cargo.toml b/crates/clawhdf5-bench/Cargo.toml
index 36c8e60..f4ebdfe 100644
--- a/crates/clawhdf5-bench/Cargo.toml
+++ b/crates/clawhdf5-bench/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clawhdf5-bench"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Benchmark harnesses for clawhdf5-agent (Track 8)"
 license = "MIT"
diff --git a/crates/clawhdf5-cli/Cargo.toml b/crates/clawhdf5-cli/Cargo.toml
index 0aaa640..beecd03 100644
--- a/crates/clawhdf5-cli/Cargo.toml
+++ b/crates/clawhdf5-cli/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-cli"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 license = "MIT"
 description = "CLI for clawhdf5 agent memory — create, save, search, recall, stats"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 keywords = ["hdf5", "ai", "memory", "agent", "cli"]
 categories = ["command-line-utilities", "science"]
 readme = "../../README.md"
@@ -14,7 +14,7 @@ name = "clawhdf5"
 path = "src/main.rs"
 
 [dependencies]
-clawhdf5-agent = { path = "../clawhdf5-agent", version = "2.1.0" }
+clawhdf5-agent = { path = "../clawhdf5-agent", version = "2.2.0" }
 clap = { version = "4", features = ["derive", "env"] }
 serde_json = "1"
 serde = { workspace = true }
diff --git a/crates/clawhdf5-derive/Cargo.toml b/crates/clawhdf5-derive/Cargo.toml
index 8278093..1743a18 100644
--- a/crates/clawhdf5-derive/Cargo.toml
+++ b/crates/clawhdf5-derive/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-derive"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Derive macros for rustyhdf5 HDF5 traits"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "derive", "macros", "science"]
 categories = ["development-tools::procedural-macro-helpers"]
diff --git a/crates/clawhdf5-filters/Cargo.toml b/crates/clawhdf5-filters/Cargo.toml
index 90a5ebf..0fb0e0b 100644
--- a/crates/clawhdf5-filters/Cargo.toml
+++ b/crates/clawhdf5-filters/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-filters"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Filter and compression pipeline for clawhdf5"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "compression", "deflate", "filters"]
 categories = ["compression", "science"]
diff --git a/crates/clawhdf5-format/Cargo.toml b/crates/clawhdf5-format/Cargo.toml
index af2583f..2cd3dfc 100644
--- a/crates/clawhdf5-format/Cargo.toml
+++ b/crates/clawhdf5-format/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-format"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Pure-Rust HDF5 binary format parsing and writing — no C dependencies"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "science", "data", "binary", "no-std"]
 categories = ["parser-implementations", "science", "encoding", "no-std"]
@@ -25,7 +25,7 @@ pco = { version = "1.0", optional = true }
 [dev-dependencies]
 serde_json = "1"
 criterion = { workspace = true }
-clawhdf5-derive = { path = "../clawhdf5-derive", version = "2.1.0" }
+clawhdf5-derive = { path = "../clawhdf5-derive", version = "2.2.0" }
 
 [[bench]]
 name = "bench"
diff --git a/crates/clawhdf5-format/src/datatype.rs b/crates/clawhdf5-format/src/datatype.rs
index c31d516..40b186e 100644
--- a/crates/clawhdf5-format/src/datatype.rs
+++ b/crates/clawhdf5-format/src/datatype.rs
@@ -546,27 +546,39 @@ impl Datatype {
                 }
             }
             11 => {
-                // Complex number — store as compound of two floats internally
-                // Parse like compound with version 3 and 2 members
-                // But actually class 11 has no special properties beyond class 6 compound.
-                // It's just recognized as a separate class. For now parse the 2 members
-                // as compound.
-                let num_members = (bf0 as u16) | ((bf1 as u16) << 8);
-                let mut members = Vec::with_capacity(num_members as usize);
-                let ob = offset_bytes_for_size(size);
-                for _ in 0..num_members {
-                    let (name, name_len) = read_null_terminated_string(data, pos)?;
-                    pos += name_len;
-                    let byte_offset = read_uint(data, pos, ob)?;
-                    pos += ob;
-                    let (member_dt, consumed) = Self::parse_with_depth(&data[pos..], depth + 1)?;
-                    pos += consumed;
-                    members.push(CompoundMember {
-                        name,
-                        byte_offset,
-                        datatype: member_dt,
+                // Complex number (HDF5 2.0, datatype version 5). The properties
+                // are a single base floating-point datatype message; an element
+                // is two consecutive base-type values (real, imaginary). There
+                // is no member list. Surface it as the equivalent two-member
+                // compound `{r, i}` — the same shape h5py writes for numpy
+                // complex dtypes — so downstream compound readers work as-is.
+                if version != 5 {
+                    return Err(FormatError::InvalidDatatypeVersion {
+                        class: class_id,
+                        version,
                     });
                 }
+                let (base_type, consumed) = Self::parse_with_depth(&data[pos..], depth + 1)?;
+                pos += consumed;
+                let base_size = base_type.type_size();
+                if base_size.checked_mul(2) != Some(size) {
+                    return Err(FormatError::DataSizeMismatch {
+                        expected: (base_size as usize).saturating_mul(2),
+                        actual: size as usize,
+                    });
+                }
+                let members = vec![
+                    CompoundMember {
+                        name: String::from("r"),
+                        byte_offset: 0,
+                        datatype: base_type.clone(),
+                    },
+                    CompoundMember {
+                        name: String::from("i"),
+                        byte_offset: base_size as u64,
+                        datatype: base_type,
+                    },
+                ];
                 Ok((Datatype::Compound { size, members }, pos))
             }
             _ => Err(FormatError::InvalidDatatypeClass(class_id)),
@@ -1126,6 +1138,75 @@ mod tests {
         }
     }
 
+    /// Real datatype message bytes emitted by HDF5 2.0 for the native complex
+    /// type `H5T_COMPLEX_IEEE_F64LE`: class 11, version 5, size 16, followed by
+    /// the base IEEE f64 datatype message.
+    const COMPLEX_F64_HDF5_2_0: [u8; 28] = [
+        0x5b, 0x01, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x11, 0x20, 0x3f, 0x00, 0x08, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x40, 0x00, 0x34, 0x0b, 0x00, 0x34, 0xff, 0x03, 0x00, 0x00,
+    ];
+
+    #[test]
+    fn test_complex_v5_from_hdf5_2_0() {
+        let (dt, consumed) = Datatype::parse(&COMPLEX_F64_HDF5_2_0).unwrap();
+        assert_eq!(consumed, COMPLEX_F64_HDF5_2_0.len());
+        match dt {
+            Datatype::Compound { size, members } => {
+                assert_eq!(size, 16);
+                assert_eq!(members.len(), 2);
+                assert_eq!((members[0].name.as_str(), members[0].byte_offset), ("r", 0));
+                assert_eq!((members[1].name.as_str(), members[1].byte_offset), ("i", 8));
+                for m in &members {
+                    assert!(matches!(
+                        m.datatype,
+                        Datatype::FloatingPoint { size: 8, .. }
+                    ));
+                }
+            }
+            other => panic!("expected Compound, got {other:?}"),
+        }
+    }
+
+    #[test]
+    fn test_compound_with_complex_member_from_hdf5_2_0() {
+        // Compound { z: complex f64 @0, k: i64 @16 } as written by HDF5 2.0.
+        // Regression guard: the complex member must consume exactly its own
+        // bytes so the following member parses.
+        let mut bytes = vec![0x56, 0x02, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, b'z', 0x00, 0x00];
+        bytes.extend_from_slice(&COMPLEX_F64_HDF5_2_0);
+        bytes.extend_from_slice(&[b'k', 0x00, 0x10]);
+        bytes.extend_from_slice(&[
+            0x10, 0x08, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00,
+        ]);
+        let (dt, consumed) = Datatype::parse(&bytes).unwrap();
+        assert_eq!(consumed, bytes.len());
+        match dt {
+            Datatype::Compound { size, members } => {
+                assert_eq!(size, 24);
+                assert_eq!(members.len(), 2);
+                assert!(matches!(
+                    &members[0].datatype,
+                    Datatype::Compound { size: 16, members } if members.len() == 2
+                ));
+                assert_eq!((members[1].name.as_str(), members[1].byte_offset), ("k", 16));
+            }
+            other => panic!("expected Compound, got {other:?}"),
+        }
+    }
+
+    #[test]
+    fn test_complex_size_mismatch_rejected() {
+        let mut bytes = COMPLEX_F64_HDF5_2_0;
+        bytes[4] = 0x0c; // claims 12 bytes, base type is 8
+        assert!(matches!(
+            Datatype::parse(&bytes),
+            Err(FormatError::DataSizeMismatch {
+                expected: 16,
+                actual: 12
+            })
+        ));
+    }
+
     #[test]
     fn test_reference_object() {
         let buf = build_dt_header(7, 1, [0, 0, 0], 8);
diff --git a/crates/clawhdf5-format/tests/writer_h5py_tests.rs b/crates/clawhdf5-format/tests/writer_h5py_tests.rs
index bcccbb1..7506717 100644
--- a/crates/clawhdf5-format/tests/writer_h5py_tests.rs
+++ b/crates/clawhdf5-format/tests/writer_h5py_tests.rs
@@ -292,6 +292,74 @@ f.close()
     assert_eq!(x_vals, vec![1.0, 3.0]);
 }
 
+#[test]
+#[ignore = "requires Python h5py module"]
+fn read_h5py_generated_native_complex() {
+    // HDF5 2.0 native complex (datatype class 11, version 5), written through
+    // h5py's low-level API. Skips when the linked HDF5 predates 2.0.
+    let path = std::env::temp_dir().join("clawhdf5_h5py_native_complex.h5");
+    let gen_script = format!(
+        r#"
+import h5py, numpy as np
+from h5py import h5t, h5s, h5d, h5f, h5p
+if not getattr(h5py.get_config(), 'has_native_complex', False):
+    print('SKIP')
+else:
+    fapl = h5p.create(h5p.FILE_ACCESS)
+    fapl.set_libver_bounds(h5f.LIBVER_LATEST, h5f.LIBVER_LATEST)
+    fid = h5f.create(b'{}', h5f.ACC_TRUNC, fapl=fapl)
+    t = h5t.COMPLEX_IEEE_F64LE
+    d = h5d.create(fid, b'z', t, h5s.create_simple((2,)))
+    d.write(h5s.ALL, h5s.ALL, np.array([1+2j, 3+4j], dtype=np.complex128), mtype=t)
+    fid.close()
+"#,
+        path.display()
+    );
+    if h5py_read(&path, &gen_script) == "SKIP" {
+        eprintln!("HDF5 < 2.0: no native complex support, skipping");
+        return;
+    }
+
+    let bytes = std::fs::read(&path).unwrap();
+    let sig = clawhdf5_format::signature::find_signature(&bytes).unwrap();
+    let sb = clawhdf5_format::superblock::Superblock::parse(&bytes, sig).unwrap();
+    let addr = clawhdf5_format::group_v2::resolve_path_any(&bytes, &sb, "z").unwrap();
+    let hdr = clawhdf5_format::object_header::ObjectHeader::parse(
+        &bytes,
+        addr as usize,
+        sb.offset_size,
+        sb.length_size,
+    )
+    .unwrap();
+    let msg = |t: clawhdf5_format::message_type::MessageType| {
+        &hdr.messages.iter().find(|m| m.msg_type == t).unwrap().data
+    };
+    let (dt, _) = clawhdf5_format::datatype::Datatype::parse(msg(
+        clawhdf5_format::message_type::MessageType::Datatype,
+    ))
+    .unwrap();
+    let ds = clawhdf5_format::dataspace::Dataspace::parse(
+        msg(clawhdf5_format::message_type::MessageType::Dataspace),
+        sb.length_size,
+    )
+    .unwrap();
+    let dl = clawhdf5_format::data_layout::DataLayout::parse(
+        msg(clawhdf5_format::message_type::MessageType::DataLayout),
+        sb.offset_size,
+        sb.length_size,
+    )
+    .unwrap();
+    let raw = clawhdf5_format::data_read::read_raw_data(&bytes, &dl, &ds, &dt).unwrap();
+    let fields = clawhdf5_format::data_read::read_compound_fields(&raw, &dt).unwrap();
+    assert_eq!(fields.len(), 2);
+    let re =
+        clawhdf5_format::data_read::read_as_f64(&fields[0].raw_data, &fields[0].datatype).unwrap();
+    let im =
+        clawhdf5_format::data_read::read_as_f64(&fields[1].raw_data, &fields[1].datatype).unwrap();
+    assert_eq!((fields[0].name.as_str(), re), ("r", vec![1.0, 3.0]));
+    assert_eq!((fields[1].name.as_str(), im), ("i", vec![2.0, 4.0]));
+}
+
 #[test]
 #[ignore = "requires Python h5py module"]
 fn read_h5py_generated_enum() {
diff --git a/crates/clawhdf5-gpu/Cargo.toml b/crates/clawhdf5-gpu/Cargo.toml
index d938320..2750505 100644
--- a/crates/clawhdf5-gpu/Cargo.toml
+++ b/crates/clawhdf5-gpu/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-gpu"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "GPU-accelerated vector operations for rustyhdf5 using wgpu compute shaders"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "gpu", "wgpu", "compute"]
 categories = ["science", "graphics"]
diff --git a/crates/clawhdf5-io/Cargo.toml b/crates/clawhdf5-io/Cargo.toml
index 574d4f0..fec0700 100644
--- a/crates/clawhdf5-io/Cargo.toml
+++ b/crates/clawhdf5-io/Cargo.toml
@@ -1,16 +1,16 @@
 [package]
 name = "clawhdf5-io"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "I/O abstraction layer for rustyhdf5"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "io", "science", "data"]
 categories = ["filesystem", "science"]
 
 [dependencies]
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0" }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0" }
 memmap2 = { version = "0.9", optional = true }
 libc = { version = "0.2", optional = true }
 tokio = { version = "1", features = ["fs", "io-util"], optional = true }
diff --git a/crates/clawhdf5-migrate/Cargo.toml b/crates/clawhdf5-migrate/Cargo.toml
index a7e21c3..8960f62 100644
--- a/crates/clawhdf5-migrate/Cargo.toml
+++ b/crates/clawhdf5-migrate/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-migrate"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "CLI to migrate SQLite agent memory databases to HDF5 format"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["sqlite", "hdf5", "migration", "agent", "memory"]
 categories = ["command-line-utilities", "database"]
@@ -14,9 +14,9 @@ name = "clawhdf5-migrate"
 path = "src/main.rs"
 
 [dependencies]
-clawhdf5-agent = { path = "../clawhdf5-agent", version = "2.1.0" }
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0" }
-clawhdf5 = { path = "../clawhdf5", version = "2.1.0" }
+clawhdf5-agent = { path = "../clawhdf5-agent", version = "2.2.0" }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0" }
+clawhdf5 = { path = "../clawhdf5", version = "2.2.0" }
 rusqlite = { version = "0.31", features = ["bundled"] }
 clap = { version = "4", features = ["derive"] }
 half = { workspace = true }
diff --git a/crates/clawhdf5-napi/Cargo.toml b/crates/clawhdf5-napi/Cargo.toml
index 21062a7..5817720 100644
--- a/crates/clawhdf5-napi/Cargo.toml
+++ b/crates/clawhdf5-napi/Cargo.toml
@@ -1,16 +1,16 @@
 [package]
 name = "clawhdf5-napi"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Node.js native addon (napi-rs) exposing clawhdf5-agent to TypeScript/JavaScript"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 
 [lib]
 crate-type = ["cdylib"]
 
 [dependencies]
-clawhdf5-agent = { path = "../clawhdf5-agent", version = "2.1.0" }
+clawhdf5-agent = { path = "../clawhdf5-agent", version = "2.2.0" }
 napi = { version = "2", default-features = false, features = ["napi9"] }
 napi-derive = "2"
 
diff --git a/crates/clawhdf5-netcdf4/Cargo.toml b/crates/clawhdf5-netcdf4/Cargo.toml
index ba0568f..73bedd9 100644
--- a/crates/clawhdf5-netcdf4/Cargo.toml
+++ b/crates/clawhdf5-netcdf4/Cargo.toml
@@ -1,17 +1,17 @@
 [package]
 name = "clawhdf5-netcdf4"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "NetCDF-4 read support built on rustyhdf5 — pure Rust, no C dependencies"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["netcdf", "netcdf4", "hdf5", "science", "climate"]
 categories = ["parser-implementations", "science"]
 
 [dependencies]
-clawhdf5 = { path = "../clawhdf5", version = "2.1.0" }
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0" }
+clawhdf5 = { path = "../clawhdf5", version = "2.2.0" }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0" }
 
 [dev-dependencies]
 tempfile = { workspace = true }
diff --git a/crates/clawhdf5-py/Cargo.toml b/crates/clawhdf5-py/Cargo.toml
index 1c611f8..1f2d8ad 100644
--- a/crates/clawhdf5-py/Cargo.toml
+++ b/crates/clawhdf5-py/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 name = "clawhdf5-py"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Python bindings for rustyhdf5 — a pure-Rust HDF5 library"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "python", "bindings", "science"]
 categories = ["api-bindings", "science"]
@@ -14,8 +14,8 @@ name = "clawhdf5"
 crate-type = ["cdylib", "rlib"]
 
 [dependencies]
-clawhdf5_rs = { path = "../clawhdf5", version = "2.1.0", package = "clawhdf5" }
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0" }
+clawhdf5_rs = { path = "../clawhdf5", version = "2.2.0", package = "clawhdf5" }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0" }
 pyo3 = "0.29"
 numpy = "0.29"
 
diff --git a/crates/clawhdf5-py/pyproject.toml b/crates/clawhdf5-py/pyproject.toml
index ad2a4ee..51a88ae 100644
--- a/crates/clawhdf5-py/pyproject.toml
+++ b/crates/clawhdf5-py/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "rustyhdf5"
-version = "2.1.0"
+version = "2.2.0"
 description = "Python bindings for rustyhdf5 — a pure-Rust HDF5 library"
 requires-python = ">=3.8"
 license = { text = "MIT" }
diff --git a/crates/clawhdf5/Cargo.toml b/crates/clawhdf5/Cargo.toml
index 2837b16..656c468 100644
--- a/crates/clawhdf5/Cargo.toml
+++ b/crates/clawhdf5/Cargo.toml
@@ -1,25 +1,25 @@
 [package]
 name = "clawhdf5"
-version = "2.1.0"
+version = "2.2.0"
 edition = "2024"
 description = "Pure-Rust HDF5 reader/writer — no C dependencies"
 license = "MIT"
-repository = "https://github.com/redclawsystems/clawhdf5"
+repository = "https://git.redclaw.dev/quantumclaw/clawhdf5"
 readme = "README.md"
 keywords = ["hdf5", "science", "data", "binary"]
 categories = ["parser-implementations", "science", "encoding"]
 
 [dependencies]
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0" }
-clawhdf5-io = { path = "../clawhdf5-io", version = "2.1.0" }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0" }
+clawhdf5-io = { path = "../clawhdf5-io", version = "2.2.0" }
 rayon = { version = "1", optional = true }
 
 [dev-dependencies]
 tempfile = { workspace = true }
 criterion = { workspace = true }
-clawhdf5-io = { path = "../clawhdf5-io", version = "2.1.0", features = ["mmap"] }
-clawhdf5-format = { path = "../clawhdf5-format", version = "2.1.0", features = ["parallel", "fast-checksum"] }
-clawhdf5-filters = { path = "../clawhdf5-filters", version = "2.1.0" }
+clawhdf5-io = { path = "../clawhdf5-io", version = "2.2.0", features = ["mmap"] }
+clawhdf5-format = { path = "../clawhdf5-format", version = "2.2.0", features = ["parallel", "fast-checksum"] }
+clawhdf5-filters = { path = "../clawhdf5-filters", version = "2.2.0" }
 
 [[bench]]
 name = "mmap_bench"
diff --git a/docs/QUICKSTART.md b/docs/QUICKSTART.md
index 2d11a02..e776244 100644
--- a/docs/QUICKSTART.md
+++ b/docs/QUICKSTART.md
@@ -556,7 +556,7 @@ let final_results = confidence::reject_low_confidence(
 
 - **[BENCHMARKS.md](../BENCHMARKS.md)** — Full performance numbers
 - **[ROADMAP.md](../ROADMAP.md)** — What's coming next
-- **[GitHub](https://github.com/redclawsystems/clawhdf5)** — Source code
+- **[Source](https://git.redclaw.dev/quantumclaw/clawhdf5)** — Source code
 - **[ClawBrainHub](https://clawbrainhub.com)** — The `.brain` marketplace (coming soon)
 
 ---
diff --git a/docs/known-issues.md b/docs/known-issues.md
new file mode 100644
index 0000000..4191157
--- /dev/null
+++ b/docs/known-issues.md
@@ -0,0 +1,82 @@
+# Known Issues
+
+Bugs found during development or downstream use, tracked here because this
+repository's issue tracker is disabled. One entry per bug; when an entry is
+fixed, record the fix in `CHANGELOG.md` and update its status here rather than
+deleting it.
+
+---
+
+## Compound datatype message version 5 is not parsed (HDF5 2.0)
+
+**Status:** fixed on `main` in `a13ff51` (2026-06-03); **not in the v2.1.0
+tag**, which was cut five commits earlier. Ships in the next release.
+
+**Reported by:** M. Scot Breitenfeld (The HDF Group), 2026-09-08, against v2.1.0.
+
+**Summary:** `clawhdf5-format` v2.1.0 rejects any dataset with a compound
+(struct) datatype written by an HDF5 2.0 library in `libver='latest'` mode:
+`InvalidDatatypeVersion { class: 6, version: 5 }`.
+
+**Reproduction** (h5py 3.16.0 / HDF5 2.0.0):
+
+```python
+import h5py, numpy as np
+dt = np.dtype([('x', 'f8'), ('y', 'f8'), ('id', 'i4')])
+data = np.array([(1.0, 2.0, 10), (3.0, 4.0, 20)], dtype=dt)
+f = h5py.File('compound.h5', 'w', libver='latest')
+f.create_dataset('particles', data=data)
+f.close()
+```
+
+Committed as `crates/clawhdf5-format/tests/writer_h5py_tests.rs::read_h5py_generated_compound`
+(`#[ignore]`d; needs `python3` with h5py on `PATH`). Run with
+`cargo test -p clawhdf5-format --test writer_h5py_tests -- --include-ignored`:
+v2.1.0 gives 25 passed / 1 failed; `main` passes everything.
+
+**Root cause:** the compound (class 6) branch of `Datatype::parse`
+(`crates/clawhdf5-format/src/datatype.rs`) accepted only versions 1–4. Datatype
+message versions 4 and 5 changed only the Reference and Complex classes, so a
+v5-tagged compound uses the unchanged v3 member-list layout.
+
+**Fix:** versions 3–5 are accepted for compound (class 6) and array (class 10)
+datatypes, and data layout message version 5 is accepted too (needed for every
+chunked dataset written by HDF5 2.0). Byte-level regression tests:
+`test_compound_v5_from_hdf5_2_0`, `test_array_v5_from_hdf5_2_0`.
+
+## Native complex datatype (class 11) is mis-parsed (HDF5 2.0)
+
+**Status:** fixed 2026-09-18. Found while validating the report above.
+
+**Summary:** HDF5 2.0 native complex types (`H5T_COMPLEX_IEEE_F64LE` etc.)
+were parsed as if they carried a compound-style member list. The properties are
+actually a single base floating-point datatype, so the parser produced a garbage
+datatype, or `UnexpectedEof` when the complex type was a compound member. h5py's
+default numpy-complex mapping is unaffected (it writes a `{r, i}` compound);
+only files using the native type through the C API / h5py low-level API hit this.
+
+**Fix:** class 11 parses its base type and is surfaced as the equivalent
+`{r, i}` compound. Tests: `test_complex_v5_from_hdf5_2_0`,
+`test_compound_with_complex_member_from_hdf5_2_0`,
+`writer_h5py_tests.rs::read_h5py_generated_native_complex`.
+
+## Revised reference datatype (class 7, version 4) is not parsed
+
+**Status:** open, unconfirmed against a real file.
+
+**Summary:** HDF5 1.12+ `H5T_STD_REF` references use datatype version 4 with
+reference types 2–4 (object2 / region2 / attribute), which `Datatype::parse`
+rejects with `InvalidReferenceType`. h5py still writes the legacy v1
+object/region references, which read correctly, so no reproducing file has been
+generated yet; one written with the C API (`H5T_STD_REF`) is needed.
+
+## `clawhdf5-gpu` `gpu_tests` can hang under the default parallel test runner
+
+**Status:** open. Observed 2026-09-18 (RTX 5060 Ti, Linux).
+
+**Summary:** during `cargo test --workspace`, the `gpu_tests` binary sat idle
+(~1% CPU) for 25+ minutes and had to be killed. Run single-threaded it passes
+in seconds (20/20): `cargo test -p clawhdf5-gpu --test gpu_tests -- --test-threads=1`.
+Suspected cause: several tests creating wgpu devices concurrently (possibly
+compounded by the rest of the workspace's tests loading the machine). Not yet
+root-caused; workaround is `--test-threads=1` for that crate.
diff --git a/packages/clawhdf5-node/package.json b/packages/clawhdf5-node/package.json
index e27c985..bb15124 100644
--- a/packages/clawhdf5-node/package.json
+++ b/packages/clawhdf5-node/package.json
@@ -1,13 +1,13 @@
 {
   "name": "@redclaw/clawhdf5",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "description": "Node.js bindings for clawhdf5 — HDF5-backed agent memory with hippocampal consolidation",
   "main": "index.js",
   "types": "index.d.ts",
   "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "https://github.com/redclawsystems/clawhdf5"
+    "url": "https://git.redclaw.dev/quantumclaw/clawhdf5"
   },
   "keywords": [
     "agent",