diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 0ee8c01..816df2d 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.3.0"
+  ".": "0.3.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9966846..cc2d818 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## [0.3.1](https://github.com/tableau/hyper-api-rust/compare/v0.3.0...v0.3.1) (2026-05-29)
+
+Patch release that fixes two related but distinct bugs surfaced by [#84](https://github.com/tableau/hyper-api-rust/issues/84) — wrong NUMERIC values in MCP query results and Node bindings.
+
+### Bug Fixes
+
+* **Core: `Numeric::Display` no longer drops the sign for sub-unit negatives.** Values in the open interval `(-1, 0)` previously rendered without the minus sign — `Numeric::new(-5000, 4).to_string()` returned `"0.5000"` instead of `"-0.5000"`. The Display impl now computes the sign explicitly and formats the magnitude via `unsigned_abs()`, which also removes a latent `i128::MIN` overflow panic. This silently flipped the sign of any correlation, 0-1 index, or regression residual that crossed the stringify path — including the MCP `query` tool's JSON serialization. ([#84](https://github.com/tableau/hyper-api-rust/issues/84), [#86](https://github.com/tableau/hyper-api-rust/pull/86))
+* **Node bindings: `NUMERIC` columns no longer decode as garbage / NaN.** `extract_row` and the columnar fast path were calling `row.get_f64()` for `SqlType::Numeric` columns, which reinterpreted the unscaled-integer bytes as IEEE-754 doubles. Every NUMERIC cell was wrong, regardless of sign. The bindings now use schema-aware `row.get_numeric()`, which honors the column scale and dispatches on wire form. `getString` returns the exact decimal text (preserving scale and sign), `getFloat64` returns the lossy-but-correct double, `getInt32`/`getInt64` return the truncated integer, and the columnar `getFloat64Column` returns correct `f64` values. Related to [#84](https://github.com/tableau/hyper-api-rust/issues/84).
+* **Node bindings: `getBigInt` now preserves precision on `NUMERIC(p, 0)` columns.** Previously `getBigInt` returned `null` for any NUMERIC cell. It now preserves the full 128-bit unscaled value for integer-shaped numerics — use it instead of `getInt64` for NUMERIC integer values above `Number.MAX_SAFE_INTEGER`. On `NUMERIC(p, scale>0)` columns it returns `null` (use `getString` for exact text or `getFloat64` for a lossy value). Related to [#84](https://github.com/tableau/hyper-api-rust/issues/84).
+
 ## [0.3.0](https://github.com/tableau/hyper-api-rust/compare/v0.2.3...v0.3.0) (2026-05-29)
 
 This release aggregates a coordinated set of breaking and additive API changes that landed across four PRs during the v0.3.0 bundle window. See [MIGRATING-0.3.md](./MIGRATING-0.3.md) for complete migration recipes covering every change.
diff --git a/Cargo.lock b/Cargo.lock
index d35abf8..54fd1aa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1811,7 +1811,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "arrow",
  "bytes",
@@ -1833,7 +1833,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-core"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "arrow",
  "base64",
@@ -1873,7 +1873,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-derive"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1882,7 +1882,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-node"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "hyperdb-api",
  "napi",
@@ -1894,7 +1894,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-salesforce"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "arrow",
  "base64",
@@ -1915,7 +1915,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-bootstrap"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "anyhow",
  "clap",
@@ -1933,7 +1933,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-mcp"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "arrow",
  "base64",
@@ -3780,7 +3780,7 @@ dependencies = [
 
 [[package]]
 name = "sea-query-hyperdb"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "sea-query",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 4003aab..7c818d0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 rust-version = "1.81"
 license = "MIT OR Apache-2.0"
diff --git a/hyperdb-api-core/Cargo.toml b/hyperdb-api-core/Cargo.toml
index 6db6ba2..9187f41 100644
--- a/hyperdb-api-core/Cargo.toml
+++ b/hyperdb-api-core/Cargo.toml
@@ -65,7 +65,7 @@ serde_json = { workspace = true }
 
 # Salesforce OAuth authentication (optional, via standalone crate)
 # x-release-please-start-version
-hyperdb-api-salesforce = { path = "../hyperdb-api-salesforce", version = "=0.3.0", optional = true }
+hyperdb-api-salesforce = { path = "../hyperdb-api-salesforce", version = "=0.3.1", optional = true }
 # x-release-please-end
 
 # Arrow parsing for catalog operations (optional, used by authenticated_client)
diff --git a/hyperdb-api/Cargo.toml b/hyperdb-api/Cargo.toml
index e2ad79c..9305ebd 100644
--- a/hyperdb-api/Cargo.toml
+++ b/hyperdb-api/Cargo.toml
@@ -14,8 +14,8 @@ autobenches = false
 
 [dependencies]
 # x-release-please-start-version
-hyperdb-api-core = { path = "../hyperdb-api-core", version = "=0.3.0" }
-hyperdb-api-derive = { path = "../hyperdb-api-derive", version = "=0.3.0" }
+hyperdb-api-core = { path = "../hyperdb-api-core", version = "=0.3.1" }
+hyperdb-api-derive = { path = "../hyperdb-api-derive", version = "=0.3.1" }
 # x-release-please-end
 bytes = { workspace = true }
 thiserror = { workspace = true }
diff --git a/hyperdb-mcp/Cargo.toml b/hyperdb-mcp/Cargo.toml
index 484f183..0189004 100644
--- a/hyperdb-mcp/Cargo.toml
+++ b/hyperdb-mcp/Cargo.toml
@@ -21,7 +21,7 @@ path = "src/main.rs"
 
 [dependencies]
 # x-release-please-start-version
-hyperdb-api = { path = "../hyperdb-api", version = "=0.3.0" }
+hyperdb-api = { path = "../hyperdb-api", version = "=0.3.1" }
 # x-release-please-end
 rmcp = { version = "1.7", features = ["server", "transport-io"] }
 tokio = { version = "1", features = ["rt-multi-thread", "macros", "io-std", "signal", "time"] }
diff --git a/version.txt b/version.txt
index 0d91a54..9e11b32 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.3.0
+0.3.1