diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,25 +2,11 @@
 
 ## Unreleased
 
-- **Optics migration** — all record updates use `optics` composable lenses (`&`, `.~`, `%~`, `use`, `.=`)
-- **Zero-copy linear types** — `ZeroCopy` module with mutable thaw/freeze for `SequenceBuffer`
-- **SequenceBuffer rewrite** — vector-based ring buffer replacing `IntMap`, O(1) insert/lookup
-- **Sub-microsecond packet processing** — INLINE pragmas, bang patterns, strict fields throughout
-- **Peer module split** — `GBNet.Peer` split into `Internal`, `Protocol`, `Handshake`, `Migration` sub-modules (public API unchanged)
-- Benchmark suite: connection, fragment, security, and reliability groups
-
-## 0.2.0.0
+## 0.1.1.0
 
-- **Storable serialization** — replaced `BitBuffer`/`BitSerialize` with zero-copy Storable-based `serialize`/`deserialize` (14ns, 70M ops/sec)
-- **`deriveStorable` TH** — generates `Storable` instances for product types with little-endian wire format
-- **23x faster packet header serialization** — zero-allocation `poke`-based writes (380ns → 17ns)
-- **4.6x faster deserialization** — direct memory access via `unsafeIndex` (73ns → 18ns)
-- Type-safe domain newtypes: `ChannelId`, `SequenceNum`, `MonoTime`, `MessageId`
-- `GBNet.Types` module as shared home for domain newtypes
-- Modules renamed: `GBNet.Serialize.FastTH` → `GBNet.Serialize.TH`, `GBNet.Serialize.FastSupport` → `GBNet.Serialize`
-- Idiomatic cleanup: Either do-notation, function composition, `fmap`/`toList`
-- Extracted focused helpers from monolithic functions (Simulator, Connection)
-- Comprehensive test coverage: channel modes, fragment edge cases, security, config validation, delta compression, simulator
+- Drop `-O2` from benchmark ghc-options (users set optimization in their own cabal.project)
+- Add automated Hackage publish to CI pipeline (tag-gated with version validation)
+- Add Hackage badge to README
 
 ## 0.1.0.0
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@
 <p>
 
 [![CI](https://github.com/gondola-bros-entertainment/gbnet-hs/actions/workflows/ci.yml/badge.svg)](https://github.com/gondola-bros-entertainment/gbnet-hs/actions/workflows/ci.yml)
+[![Hackage](https://img.shields.io/hackage/v/gbnet-hs.svg)](https://hackage.haskell.org/package/gbnet-hs)
 ![Haskell](https://img.shields.io/badge/haskell-GHC%209.6-purple)
 ![License](https://img.shields.io/badge/license-MIT-blue)
 
diff --git a/gbnet-hs.cabal b/gbnet-hs.cabal
--- a/gbnet-hs.cabal
+++ b/gbnet-hs.cabal
@@ -1,6 +1,6 @@
 cabal-version:      3.0
 name:               gbnet-hs
-version:            0.1.0.0
+version:            0.1.1.0
 synopsis:           Transport-level networking library with zero-copy Storable serialization
 description:
   A transport-level networking library providing reliable UDP with
diff --git a/test/Main.hs b/test/Main.hs
--- a/test/Main.hs
+++ b/test/Main.hs
@@ -4,6 +4,7 @@
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TemplateHaskell #-}
 {-# LANGUAGE TypeFamilies #-}
+{-# OPTIONS_GHC -Wno-orphans #-}
 
 module Main where